| 1. |
- Alricsson, Marie, et al.
(författare)
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Young elite cross-country skiers and low back pain : A 5-year study
- 2006
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Ingår i: Physical Therapy in Sport. - : Elsevier BV. - 1466-853X .- 1873-1600. ; 7:4, s. 181-184
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Tidskriftsartikel (refereegranskat)abstract
- Objectives To evaluate possible changes in spinal curvature over a period of 5 years of an elite cross-country skiing squad, and to study whether there are any differences in this respect between individuals who report low back pain and those how do not. Participants Fifteen young cross-country skiers (M age=13.6±0.9) participated voluntarily throughout the entire study period. Main outcome measures Debrunner's kyphometer was used for measuring the difference between thoracic kyphosis and lumbar lordosis of the spine. All subjects also answered a questionnaire including questions about ski-related low back pain, the amount of ski training, and participation in other sports. Results The results at the end of the 5-year period comprise data from 15 skiers (M age=18.5±0.9 years). The relationship between thoracic kyphosis and lumbar lordosis increased from 3.5° to 13.1°, respectively (p=0.0001). Of the 15 elite cross-country skiers, seven reported low back pain at the 5-year examination. At the 5-year follow-up, skiers with low back pain showed significantly higher relationship between thoracic kyphosis and lumbar lordosis than did those skiers without low back pain, 18.2° and 10.5°, respectively (p=0.035). Of the eight elite cross-country skiers without low back pain, seven were also involved in other sports (p=0.005). Conclusions Based on these findings, our advice is that adolescent cross-country skiers also should participate in other physical activities besides cross-country skiing.
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| 2. |
- Broman, D., et al.
(författare)
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A clinician-friendly test battery with a passing rate similar to a ‘gold standard’ return-to-sport test battery 1 year after ACL reconstruction: Results from a rehabilitation outcome registry
- 2023
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Ingår i: Physical Therapy in Sport. - : Elsevier BV. - 1466-853X. ; 59, s. 144-150
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To 1) present passing rates for different clinician-friendly (CF) test batteries and 2) determine the relationship between passing CF test batteries and passing gold standard (GS) return-to-sport (RTS) muscle function testing, 1 year after ACL reconstruction. Study design: Cross-sectional registry study, level of evidence: 3. Setting: Primary care. Participants: Data from 588 patients (52% women, mean age 29.3 ± 9.8 years) were extracted from the Project ACL registry. Main outcome measures: The passing rates for the different test batteries. Results: The passing rate for GS test battery was 28% (95% CI, 24–32%) and the passing rate for the CF test battery with the lowest passing rate was 27% (95% CI 24–31%). The two CF test batteries with the strongest relationships with passing GS test battery showed that 51% (95% CI 43–59%) and 49% (95% CI 44–55%) of the patients who passed the respective CF test battery also passed the GS test battery. Conclusion: A CF test battery can be as demanding to pass as a GS test battery, 1 year after ACL reconstruction. However, passing a CF test battery only gives patients a chance similar to a “coin flip” of also passing a GS RTS test battery.
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| 3. |
- Carter, Josh, et al.
(författare)
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Shoulder Pain and Dysfunction in Young Surf Lifesavers
- 2015
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Ingår i: Physical Therapy in Sport. - : Elsevier. - 1466-853X .- 1873-1600. ; 16:2, s. 162-168
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Tidskriftsartikel (refereegranskat)abstract
- ObjectivesTo determine the incidence and prevalence of significantly interrupting shoulder pain (SIP) in young surf lifesavers and to determine association with training dosage and the ‘combined elevation test’.Participants54 surf lifesavers aged 10 – 18 from the Gold Coast, Australia.Methods and Outcome MeasuresRetrospective survey of SIP and training dosage. Cross-sectional measures of the combined elevation test.DesignRetrospective.Results56.5% of female surf lifesavers reported a history of SIP compared to males with 48.5%. Females had a higher combined elevation score compared to males, 28.32±SD8.52cm and 26.09±SD6.64cm, respectively. Young surf lifesavers had an incidence rate of 2.1 SIP episodes per thousand hours of training, an incidence proportion of 51.9% and prevalence of 18.5%. Combined elevation had low level positive trends with training dosages and statistically significant negative correlation with board paddling sessions per week (r= -0.287, p=<0.05). Those with a history of SIP had a statistically significant higher number of sessions (p=0.008), duration (p=0.015) and distance (p=0.005) swimming per week.ConclusionYoung surf lifesavers with a history of SIP have greater swimming dosage not associated with decrease in combined elevation score. More board paddling sessions per week decreased the combined elevation score of young surf lifesavers.
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| 4. |
- Creaby, Mark W., et al.
(författare)
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Frontal plane kinematics predict three-dimensional hip adduction during running
- 2017
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Ingår i: Physical Therapy in Sport. - : Elsevier BV. - 1466-853X. ; 27, s. 1-6
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Tidskriftsartikel (refereegranskat)abstract
- Objectives To investigate if frontal plane kinematics are predictive of three dimensional (3D) hip adduction and hip internal rotation during running. Study design Cross-sectional. Setting Biomechanics laboratory. Participants Thirty healthy male runners aged 18–45 years. Main outcome measures Two dimensional (2D) angles in the frontal plane (peak pelvic obliquity, peak hip adduction, peak femoral valgus, peak knee valgus and peak tibial valgus) and 3D hip adduction and hip internal rotation during stance phase of running were obtained. Results Linear regression modelling revealed that peak 2D pelvic obliquity (a drop towards the contralateral leg) and peak femoral valgus significantly predicted 88% of the variance in peak 3D hip adduction (p < 0.001). Frontal plane kinematics however, were not predictive of peak hip internal rotation in 3D (p > 0.05). Conclusions Frontal plane kinematics, specifically contralateral pelvic drop and femoral valgus, predicted the vast majority of the variance in 3D hip adduction during the stance phase of running. This indicates that 2D video may have potential as a clinically feasible proxy for measurement of peak 3D hip adduction – a risk factor for patellofemoral pain.
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| 5. |
- Cronström, Anna, et al.
(författare)
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Are demographics, physical function and psychological response associated with return to sport at one year following ACL-reconstruction?
- 2024
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Ingår i: Physical Therapy in Sport. - : Elsevier. - 1466-853X .- 1873-1600. ; 68, s. 22-30
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To determine the relative contribution of each of the following aspects: demographics, physical function, and patient-reported outcome measures (PROMs), including both physical and psychological constructs, to return to sport (RTS) (any level) one-year post anterior cruciate ligament reconstruction (ACLR). Design: Cross-sectional cohort study.Methods: We included data for 143 participants (73 women, mean (SD) age 24 (5.8) years) ∼ one-year post-ACLR. Data comprised demographics, physical function (hop performance, hip and knee peak torque) and PROMs (Knee Osteoarthritis Outcome Score subscales, perceived stress, and ACL Return to Sport after Injury scale (ACL-RSI)). We then used a Z-normalized multivariable logistic regression model to establish the relative contribution of factors associated with RTS.Results: Sixty-four (45%) of the participants had returned to sport at one year post-ACLR. In the regression model, greater hip abduction peak torque (OR = 1.70, 95% CI; 1.01 to 2.84) and greater psychological readiness to RTS (OR = 2.32, 95% CI; 1.30 to 4.12) were the only variables associated with RTS (R2 = 0.352).Conclusions: The significant contribution of hip abduction strength and psychological readiness to RTS was still relatively small, suggesting other potential factors explaining RTS which may not be captured by common RTS criteria.
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| 6. |
- Cronström, A., et al.
(författare)
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Factors affecting knee abduction during weight-bearing activities in individuals with anterior cruciate ligament reconstruction
- 2019
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Ingår i: Physical Therapy in Sport. - : Elsevier BV. - 1466-853X. ; 38, s. 8-15
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To investigate if muscle strength and muscle activation patterns are associated with increased knee abduction during two functional tasks, commonly used in rehabilitation for individuals with anterior cruciate ligament reconstruction (ACLR). Design: Cross-sectional study. Setting: Laboratory. Participants: 24 women and 29 men approximately 7 months after ACLR. Main outcome measures: Isometric peak torque of the trunk and lower extremity muscles were determined during maximal voluntary contractions. Trunk and lower extremity average muscle activation amplitude and peak knee abduction were evaluated during the single-leg squat (SLS) and the single-leg hop for distance (SLHD) for the injured side. Separate backward regressions were performed for men and women. Results: In women, lower knee flexion and extension strength were associated with greater peak knee abduction during the SLS (B = 4.63–18.26, p ≤ 0.036); lower knee flexion strength and iliocostalis activation on the non-injured side were associated with greater peak knee abduction during the SLHD (B = 0.60–20.48, p ≤ 0.043). No associations between muscle function and peak knee abduction were found in men. Conclusions: Muscle function may contribute differently to knee abduction in men and women after ACLR. This should be considered when designing rehabilitation programs to reduce knee abduction in these patients.
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| 7. |
- Edouard, Pascal, et al.
(författare)
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Extending in-competition Athletics injury and illness surveillance with pre-participation risk factor screening: A pilot study
- 2015
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Ingår i: Physical Therapy in Sport. - : Elsevier. - 1466-853X .- 1873-1600. ; 16:2, s. 98-106
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To explore the performance of retrospective health data collected from athletes before Athletics championships for the analysis of risk factors for in-competition injury and illness (IandI). Methods: For the 2013 European Athletics Indoor Championships, a self-report questionnaire (PHQ) was developed to record the health status of 127 athletes during the 4 weeks prior to the championship. Physician-based surveillance of in-competition IandI among all 577 athletes registered to compete was pursued during the championships. Results: 74 athletes (58.3%) from the sample submitted a complete PHQ, 21 (28%) of these athletes sustained at least one injury and/or illness during the championships. Training more than 12 h/week predisposed for sustaining an in-competition injury, and a recent health problem for in-competition illness. Among the 577 registered athletes, 60 injuries (104/1000 registered athletes) were reported. 31% of injuries were caused by the track, and 29% by overuse. 29 illnesses were reported (50/1000 registered athletes); upper respiratory tract infection and gastro-enteritis/diarrhoea were the most reported diagnoses. Conclusions: Pre-participation screening using athletes self-report PHQ showed promising results with regard to identification of individuals at risk. Indoor injury types could be attributed to extrinsic factors, such as small track size, track inclination, and race tactics. (C) 2014 Elsevier Ltd. All rights reserved.
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| 8. |
- Escriche-Escuder, A., et al.
(författare)
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Pain neuroscience education in persistent painful tendinopathies: A scoping review from the Tendon PNE Network
- 2023
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Ingår i: Physical Therapy in Sport. - 1466-853X. ; 63, s. 38-49
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Tidskriftsartikel (refereegranskat)abstract
- Objective: to conduct and report a scoping review of the available evidence of the effects and content of pain neuroscience education for patients with persistent painful tendinopathies.Methods: PubMed, Embase, Web of Science, CINAHL, SPORTDiscus, and grey literature databases were searched from database inception to May 2022. Randomised and non-randomised controlled trials, non-controlled clinical trials, cohort studies, case series, case studies including people with persistent painful tendinopathy aged & GE;18 years, a pain education intervention, and in English were included. Studies were excluded if they were crosssectional studies, reviews, editorials, abstracts, or full-text not available or if included heterogeneous study cohorts, patients with tendon rupture, or patients with systemic diseases.Results: five studies (n = 164) were included. Pain neuroscience education entailed face-to-face discussion sessions or educational materials including videos, brochures, paper drawings, and review questions. All studies used pain neuroscience education in conjunction with other interventions, obtaining significant benefits in outcomes related to pain, physical performance, or self-reported function, among others.Conclusions: The application of pain neuroscience education in conjunction with other interventions seemed to improve several outcomes. However, considering the current knowledge about tendon pain and the scarcity of well-designed trials studying pain neuroscience education in tendinopathy, additional research is needed.
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| 9. |
- Falk, Jimmy, et al.
(författare)
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How accurate are visual assessments by physical therapists of lumbo-pelvic movements during the squat and deadlift?
- 2021
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Ingår i: Physical Therapy in Sport. - : Elsevier. - 1466-853X .- 1873-1600. ; 50, s. 195-200
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Tidskriftsartikel (refereegranskat)abstract
- ObjectivesTo investigate the accuracy of visual assessments made by physical therapists of lumbo-pelvic movements during the squat and deadlift and how much movement is considered injurious.DesignQuantitative Cross-sectional.Participants14 powerlifters, 10 Olympic weightlifters and six physical therapists.SettingThe lifters were recorded simultaneously by video and an inertial measurement unit (IMU) system while performing squats and deadlifts. The physical therapists assessed the videos and rated whether specific lumbo-pelvic movements were visible during the lifts and whether the movement amplitude was considered injurious.Main outcome measuresThe nominal visual assessments, if there was a movement and if it was considered injurious, were compared to the degrees of movement attained from the IMU system.ResultsDuring the squat, a posterior pelvic tilt of ≥34° was required to visually detect the movement. For other lumbo-pelvic movements, there was no significant difference in the amount of movement between those who were assessed as moving or not moving their lumbo-pelvic area, nor was there a difference in movement amplitude between those who were assessed as having an increased risk of injury or not.ConclusionsPhysical therapists did not consistently detect lumbo-pelvic movements during squats and deadlifts when performed by competitive lifters.
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| 10. |
- Furness, James, et al.
(författare)
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Clinical methods to quantify trunk mobility in an elite male surfing population
- 2016
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Ingår i: Physical Therapy in Sport. - : Elsevier. - 1466-853X .- 1873-1600. ; 19, s. 28-35
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundHigh numbers of acute shoulder and chronic lumbar injuries have been identified in a surfing population. A simple screening tool could be used to determine whether thoracic spine dysfunction is a possible contributor to shoulder or lumbar injuries. Importantly, thoracic mobility in the sagittal and horizontal planes are key requirements in the sport of surfing; however to date the normal values of these movements have not yet been quantified in a surfing population.ObjectivesTo develop a reliable method to quantify thoracic mobility in the sagittal plane; to assess the reliability of a thoracic rotation method, and quantify thoracic mobility in an elite male surfing population.DesignClinical Measurement, reliability (repeated measures) and comparative study. Methods: 27 subjects were used to determine the reliability of a new method to assess thoracic mobility in the sagittal plane and 30 subjects were used to confirm the reliability of an existing thoracic rotation method. A total of 15 elite surfers were used as part of a comparative analysis with age and gender matched controls. Results: Intra-rater reliability (within and between session) intraclass correlation coefficient (ICC) values ranged between 0.95 - 0.99 for both thoracic methods in the sagittal plane and between 0.95 – 0.98 for the rotation method. There was no significant difference in the amount of thoracic mobility in the sagittal plane between groups; however the elite surfing group had significantly (p ≤ 0.05) greater rotation than the comparative group (mean rotation 63.57° versus 40.80° respectively). Symmetry was also confirmed between left and right thoracic rotation in the elite surfing group (63.06 versus 64.01). Conclusion: This study has illustrated reliable methods to assess the thoracic spine in the sagittal and horizontal planes. It has also quantified ROM in a surfing cohort; identifying thoracic rotation as a key movement. This information may provide clinicians, coaches and athletic trainers with imperative information regarding the importance of maintaining adequate thoracic rotation and symmetry. From a screening perspective thoracic rotation should be assessed for performance purposes and to limit the potential for injury in the thoracic spine or in surrounding regions.
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| 11. |
- Fältström, Anne, et al.
(författare)
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Normative values and changes in range of motion, strength, and functional performance over 1 year in adolescent female football players : Data from 418 players in the Karolinska football Injury Cohort study.
- 2022
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Ingår i: Physical Therapy in Sport. - : Elsevier. - 1466-853X .- 1873-1600. ; 58, s. 106-116
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To study normative values of range of motion (ROM), strength, and functional performance and investigate changes over 1 year in adolescent female football players.DESIGN: Cross-sectional.PARTICIPANTS: 418 adolescent female football players aged 12-17 years.MAIN OUTCOME MEASURES: The physical characteristic assessments included (1) ROM assessment of the trunk, hips, and ankles; (2) strength measures (maximal isometric and eccentric strength for the trunk, hips, and knees, and strength endurance for the neck, back, trunk and calves), and (3) functional performance (the one-leg long box jump test and the square hop test).RESULTS: Older players were stronger, but not when normalized to body weight. Only small differences in ROM regarding age were found. ROM increased over 1 year in most measurements with the largest change in hip external rotation, which increased by 6-7° (Cohen's d = 0.83-0.87). Hip (d = 0.28-1.07) and knee (d = 0.38-0.53) muscle strength and the square hop test (d = 0.71-0.99) improved over 1 year.CONCLUSIONS: Normative values for ROM and strength assessments of neck, back, trunk, hips, knees, calves and ankles are presented for adolescent female football players. Generally, fluctuations in ROM were small with little clinical meaning, whereas strength improved over 1 year.
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| 12. |
- Fältström, Anne, et al.
(författare)
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The side hop test: Validity, reliability, and quality aspects in relation to sex, age and anterior cruciate ligament reconstruction, in soccer players
- 2023
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Ingår i: Physical Therapy in Sport. - : CHURCHILL LIVINGSTONE. - 1466-853X .- 1873-1600. ; 62, s. 39-45
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To study the side hop test regarding validity, reliability, and quality in relation to sex, age and ACL-reconstruction in soccer players.Design: Cohort study. Participants: 117 females with a primary ACL-reconstruction, and 119 females, 46 males (age 16-26 years), 49 girls and 66 boys (age 13-16 years) without injury.Main outcome measures: For convergent validity, one physiotherapist analysed side hops live and later on video. One physiotherapist and two physiotherapy students analysed side hops from 92 players for interrater reliability (video). For intrarater reliability, side hops from 35 players were analysed twice (video). Quality aspects (flaws), i.e. number of times the hopping limb touched the strips, the nonhopping limb touched the floor, and double hops/foot turns with the hopping limb, were registered (video).Results: Convergent validity was excellent; the intraclass correlation coefficient (ICC) was 0.93-1.0. All reliability measures were excellent (ICC 0.92-1.0). Adult male players had fewest and girls had most flaws, especially double hops/foot turns with the hopping limb, compared with all other players (mean, 11-12 vs 1-6, h2 = 0.18, large effect size). No differences were reported between knee-healthy and ACLreconstructed females.Conclusion: The side hop test is valid and reliable. Quality aspects differ between sexes and ages.& COPY; 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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| 13. |
- Grinberg, Adam, et al.
(författare)
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Does a knee joint position sense test make functional sense? : Comparison to an obstacle clearance test following anterior cruciate ligament injury
- 2022
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Ingår i: Physical Therapy in Sport. - : Churchill Livingstone. - 1466-853X .- 1873-1600. ; 55, s. 256-263
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To evaluate knee joint position sense (JPS) among individuals with anterior cruciate ligament reconstruction (ACLR), cleared for return to sport, and investigate whether JPS errors are associated with outcomes of a functional obstacle clearance test (OC; downward vision occluded).Design: Cross-sectional.Setting: Controlled laboratory.Participants: Thirty-four individuals following ACLR, 23 non-athletic asymptomatic controls (CTRL), 18 athletes (ATH).Main outcome measures: absolute error (AE) and variable error (VE) for weight-bearing knee JPS (target angles: 40°, 65°); minimal distances of the lower extremity from the obstacle (at any time and vertical clearance; two obstacle heights).Results: Larger AE (P = 0.023) and VE (P = 0.010) were observed for CTRL compared with ACLR. CTRL also had larger OC distances for the trailing leg compared with ATH (P ≤ 0.046) and greater variability compared to both other groups (P ≤ 0.033). Moderate positive correlations (Rs ≥ 0.408, P ≤ 0.029) were observed between AE for the 40° angle and low-obstacle distances, for the injured ACLR leg.Conclusions: Knee JPS was worse in less-active individuals rather than following ACLR. Functional assessments like our OC test should complement isolated JPS tests, as they emphasize whole-body coordination and thus constitute more relevant estimations of proprioception.
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| 14. |
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| 15. |
- Hébert-Losier, Kim, et al.
(författare)
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Scientific bases and clinical utilisation of the calf-raise test.
- 2009
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Ingår i: Physical Therapy in Sport. - : Elsevier BV. - 1466-853X .- 1873-1600. ; 10:4, s. 142-9
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Athletes commonly sustain injuries to the triceps surae muscle-tendon unit. The calf-raise test (CRT) is frequently employed in sports medicine for the detection and monitoring of such injuries. However, despite being widely-used, a recent systematic review found no universal consensus relating to the test's purpose, parameters, and standard protocols. OBJECTIVES: The purpose of this paper is to provide a clinical perspective on the anatomo-physiological bases underpinning the CRT and to discuss the utilisation of the test in relation to the structure and function of the triceps surae muscle-tendon unit. DESIGN: Structured narrative review. METHODS: Nine electronic databases were searched using keywords and MESH headings related to the CRT and the triceps surae muscle-tendon unit anatomy and physiology. A hand-search of reference lists and relevant journals and textbooks complemented the electronic search. SUMMARY: There is evidence supporting the clinical use of the CRT to assess soleus and gastrocnemius, their shared aponeurosis, the Achilles tendon, and the combined triceps surae muscle-tendon unit. However, employing the same clinical test to assess all these structures and their associated functions remains challenging. CONCLUSIONS: Further refinement of the CRT for the triceps surae muscle-tendon unit is needed. This is vital to support best practice utilisation, standardisation, and interpretation of the CRT in sports medicine.
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| 16. |
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| 17. |
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| 18. |
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| 19. |
- Högberg, Johan, et al.
(författare)
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Persistent knee flexor strength deficits identified through the NordBord eccentric test not seen with “gold standard” isokinetic concentric testing during the first year after anterior cruciate ligament reconstruction with a hamstring tendon autograft
- 2022
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Ingår i: Physical Therapy in Sport. - Oxford : Elsevier. - 1466-853X .- 1873-1600. ; 55, s. 119-124
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To investigate the recovery of knee flexor muscle strength evaluated with a Nordic hamstring eccentric test (NordBord) compared with an isokinetic concentric test (Biodex) during the first year after anterior cruciate ligament (ACL) reconstruction using a hamstring tendon autograft.Design: Prospective observational registry study; level of evidence, 3.Setting: Primary care.Participants: Cross-sectional data of 127 patients (45% women, mean age 24.9 ± 8.1 years) were extracted from a rehabilitation outcome registry at 10 weeks and 4, 8 and 12 months after ACL reconstruction with hamstring tendon autograft.Main outcome measures: All patients performed a concentric Biodex test, and an eccentric NordBord test on the same occasion or within seven days of the concentric test. The primary outcome was the limb symmetry index between the respective tests.Results: A greater knee flexor symmetry deficit was observed with the eccentric test compared with the concentric test at all follow-ups with clinically relevant differences at 4 (11.8% ± 12.7% [CI 7.8–15.8%]) and 8 months (13.4 ± 11.9 [CI 9.7–17.2%].Conclusion: The eccentric NordBord test was able to identify clinically relevant deficits in knee flexor strength symmetry that were not identified by gold standard isokinetic concentric testing during the first year among patients treated with an ACL reconstruction using a hamstring tendon autograft. © 2022 The Authors
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| 20. |
- Högberg, Johan, 1994, et al.
(författare)
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The NordBord test reveals persistent knee flexor strength asymmetry when assessed two and five years after ACL reconstruction withhamstring tendon autograft
- 2024
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Ingår i: Physical Therapy in Sport. - 1466-853X .- 1873-1600. ; 66, s. 53-60
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Comparison of knee flexor strength limb symmetry index (LSI) between the NordBord-test and the Biodex-test, and to determine the relationship between knee flexor strength and function in patients 2 and 5 years after anterior cruciate ligament reconstruction (ACL-R) with hamstring tendon (HT) autografts. Design: Observational registry study. Setting: Primary care. Patients: Cross-sectional data from 96 patients (55% women) participating in a rehabilitation-registry after ACL-R with HT autografts. Main outcome measures: Comparison of knee flexor strength symmetry between the Biodex-test and the NordBord-test. Secondly, the relationship between knee flexor strength test and perceived knee function, activity level, and hop performance. Results: The NordBord-test demonstrated greater strength deficits compared to the Biodex-test with a mean difference of 12.5% ± 15.1% 95 % CI [8.1; 16.9%] at 2 years, and 11.1% ± 11.9% 95 % CI [7.7; 14.6 %] at 5 years after ACL-R. Relative concentric knee flexor strength (Nm/kg) in the Biodex demonstrated significant weak-to-moderate correlations with activity level and hop performance (r = 0.33–0.67) at 2 and 5 years. Conclusion: The NordBord-test identified deficits in knee flexor strength LSI not seen with the Biodex-test at 2 and 5 years after ACL-R. No significant correlations were found between the persistent knee flexor strength asymmetry and perceived function, activity level or hop performance.
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| 21. |
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| 22. |
- Lanshammar, Katharina, et al.
(författare)
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Differences in muscle strength in dominant and non-dominant leg in females aged 20-39 years - A population-based study
- 2011
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Ingår i: Physical Therapy in Sport. - : Elsevier BV. - 1466-853X .- 1873-1600. ; 12:2, s. 76-79
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Tidskriftsartikel (refereegranskat)abstract
- Objective: In sports medicine, muscle strength and joint flexibility of the contralateral limb is used as a rehabilitation goal for the injured extremity. The present study was designed to determine whether side differences in hamstrings and quadriceps muscle strength, or in the ratio between hamstrings and quadriceps strength (H:Q), might be of clinical importance. Design: Cross-sectional study in a randomly selected, population-based cohort. Setting: University hospital in Uppsala. Quadriceps and hamstrings strength was assessed by maximum isokinetic concentric contractions at an angular velocity of 90 degrees/s. Participants: A sample of 159 randomly selected women from Uppsala county population registers, aged 20-39 years, was included in the study. Main outcome measures: Peak isokinetic concentric torques of the quadriceps and hamstrings, and the corresponding H:Q ratios. Results: In this cohort of non-athletes the muscle strength in the dominant leg was on average 8.6% (p 0.001) in the non-dominant leg. Conclusions: Our study shows that in a population-based sample of women there is a significant asymmetry in leg muscle strength favouring non-dominant leg flexion and dominant leg extension. In this study the H:Q ratio was therefore substantially lower in the dominant leg. Whether this should influence rehabilitation goals must be further investigated.
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| 23. |
- Larsson, Hampus, et al.
(författare)
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Lumbopelvic movement control in powerlifters with and without low back pain
- 2024
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Ingår i: Physical Therapy in Sport. - : Elsevier. - 1466-853X .- 1873-1600. ; 65, s. 74-82
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To measure lumbopelvic movement control in powerlifters with and without low back pain (LBP).Design: Quantitative Cross-sectional.Participants: Twelve powerlifters with LBP and 28 powerlifters without LBP.Setting: Powerlifters were recruited in nine different cities and filmed while performing a movement control test battery.Main outcome measures: Lumbopelvic movement control test battery consisting of seven tests, with a possible score between 0 and 13. The tests were rated by a physical therapist blinded to the group allocation and comparisons of the frequency of current/incorrect tests between groups were calculated.Results: There was no statistically significant difference in the movement control test battery between the powerlifters with LBP (Median = 7.0, (2–11)) and powerlifters without LBP (Median = 6.0, (1–10)) (P = 0.59). There were no statistically significant differences between groups when the individual movement control tests were analyzed separately.Conclusions: The lack of significant differences between groups indicates that performance in lumbopelvic movement control test might not be associated with LBP in powerlifters. More studies on associations between LBP and movement control and other body functions are needed to guide assessment and treatment of powerlifters with LBP and for investigation of possible risk factors for LBP in powerlifters.
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| 24. |
- Levinger, Pazit, et al.
(författare)
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A novel web-support intervention to promote recovery following Anterior Cruciate Ligament reconstruction: A pilot randomised controlled trial
- 2017
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Ingår i: Physical Therapy in Sport. - : CHURCHILL LIVINGSTONE. - 1466-853X .- 1873-1600. ; 27, s. 29-37
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Tidskriftsartikel (refereegranskat)abstract
- Background: Self-efficacy is positively associated with adherence behaviours and rehabilitation outcomes following Anterior Cruciate Ligament (ACL) reconstruction. An internet resource can be an effective way to provide information, goal setting, patient monitoring and hence support overall self management. Purpose: This study examined the feasibility of a three month Internet-based intervention (mobile oriented site) to enhance recovery for patients, following ACL reconstruction. The potential effect of the internet-based intervention on knee pain, function, self-efficacy and fear of pain were also assessed. Method: This was a pilot randomised controlled trial (RCT) with pre and post intervention design (assessments at one week and three months following ACL reconstruction) comparing: (1) a control group and (2) an intervention group (internet-based intervention). A set of qualitative and quantitative assessments were included to evaluate potential improvements in self-efficacy, pain and function and perception of the internet intervention. Results and conclusion: Seventeen participants were available for analysis (n =10 intervention and n = 7 control group). Participants reported the internet-based intervention to be a useful tool for information, reminder and reinforcement for performing their exercise rehabilitation with 30.3% ( 35.3%) adherence to the internet-based intervention. No differences were observed between the groups over time on the outcome questionnaires (p amp;gt; 0.05). Australian New Zealand Clinical Trials Registry (ANZCTR): ACTRN12616001379404. (C) 2017 Elsevier Ltd. All rights reserved.
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| 25. |
- Lindblom, Hanna, et al.
(författare)
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Intra- and interrater reliability of subjective assessment of the drop vertical jump and tuck jump in youth athletes
- 2021
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Ingår i: Physical Therapy in Sport. - : CHURCHILL LIVINGSTONE. - 1466-853X .- 1873-1600. ; 47, s. 156-164
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To investigate intra- and interrater reliability of the subjective assessments of filmed DVJ and TJA in youth male and female soccer players and to compare subjective assessment of the DVJ with two-dimensional movement analysis. Design: Cross-sectional study. Participants: 115 soccer players (66 boys, 49 girls) mean age 14 +/- 1 (range 13-16) years. Main outcome measures: Knee control during landing phase of DVJ was assessed using a 3-graded scoring scale. TJA was assessed according to ten criteria using a dichotomous grading scale. Subjective assessment of DVJ was compared with calculation of normalized knee separation distance (NKSD). Results: Intrarater reliability for DVJ was substantial to almost perfect (kappa 0.72 rater 1; 0.85 rater 2). Interrater reliability was substantial to almost perfect (kappa from 0.68 to 0.83). The TJA total score intrarater reliability was ICC 0.59 for rater 1 and 0.90 for rater 2. Interrater reliability ranged from ICC 0.51 to 0.60. There were between-group differences in mean NKSD during DVJ for players rated as 0, 1 and 2, but within-group variability was large. Conclusion: Assessment of DVJ and TJA in youth athletes was rater dependent. Players with subjectively assessed reduced or poor knee control had smaller normalized knee separation distance in DVJ. (C) 2020 The Authors. Published by Elsevier Ltd.
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