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- Desai, Pia, et al.
(författare)
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Effectiveness of an 18-week general strength and foam-rolling intervention on running-related injuries in recreational runners
- 2023
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Ingår i: Scandinavian Journal of Medicine & Science in Sports. - : Wiley. - 0905-7188 .- 1600-0838. ; 33:5, s. 766-775
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Tidskriftsartikel (refereegranskat)abstract
- Rationale: More research is needed to uncover the effectiveness of combined strength and foam-rolling interventions to prevent running-related injuries. Objectives: To evaluate effectiveness of an 18-week general strength and foam-rolling intervention on the incidence of running-related injuries. Method: This is an 18-week observational comparative study. A total of 433 recreational runners participated (n = 203 female). The intervention group (n = 228) performed general strength and foam-rolling exercises twice weekly for 18 weeks, the control group (n = 205) maintained their regular training habits. Running volume and running-related pain were reported weekly. Secondary analyses were performed on the subgroups of the intervention group based on compliance; low compliance (n = 100), intermediate compliance (n = 63), and high compliance (n = 65). Cumulative incidence proportions were calculated and time-to- event statistics were performed to compare survival times between groups. Univariate cox proportional hazards ratio was calculated to estimate the risk of running-related injuries at 18 weeks. Results: A total of 100 running-related injuries were sustained. The cumulative incidence proportion for the control and intervention groups was 27.1% (95% CI:21.4–33.9) and 23.0% (95% CI: 17.8–29.4), respectively. No statistically significant difference was found between the overall intervention group and control group (log- rank p = 0.31). A significant difference existed between the high-compliance subgroup and the control group (log-rank p = 0.00). Highly compliant runners were 85% less likely (hazard rate ratio = 0.15; 95% CI: 0.05–0.46) to sustain an injury during the study compared with controls. Conclusion: Recreational runners highly compliant with the intervention were 85% less likely and took on average 57 days longer to sustain a running-related injury when compared with controls, with a cumulative incidence proportion of 4.6% after 18 weeks.
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| 2. |
- Desai, Pia, et al.
(författare)
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Recreational Runners With a History of Injury Are Twice as Likely to Sustain a Running-Related Injury as Runners With No History of Injury: A 1-Year Prospective Cohort Study
- 2021
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Ingår i: Journal of Orthopaedic and Sports Physical Therapy. - 0190-6011. ; 51:3, s. 144-150
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Tidskriftsartikel (refereegranskat)abstract
- To investigate (1) the cumulative incidence proportion and the most common anatomical locations of running-related injuries in recreational runners, and (2) the associations between running-related injuries and previous injury, running experience, weekly running distance, age, gender and body mass index (BMI).A one-year prospective cohort study.224 recreational runners (average of 15km weekly running distance for the past 12 months) were included (89 women, 135 men). Pain information was reported weekly for one year and all running-related injuries with time-loss or requiring medical consultation were recorded. We accounted for censoring when calculating cumulative incidence proportion, and used crude Cox proportional hazards regression to evaluate if the variables of interest were associated with running-related injuries.The one-year cumulative incidence proportion of running-related injuries was 46% (95% CI: 38.4-54.1). The most common anatomical locations were the knee (20 of 75, 27%) and Achilles tendon/calf (19 of 75, 25%). Previous injury was associated with a higher injury rate (hazard ratio: 1.9, 95% CI: 1.2-3.2), while the other variables had no statistically significant association with injury.There were 75 running-related injuries during the one-year surveillance period for a cumulative incidence proportion of 46%. The most common injuries were to the knee and Achilles tendon/calf. Recreational runners with a previous injury were twice as likely to sustain a running-related injury than runners with no previous injury.
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| 3. |
- Desai, Pia
(författare)
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Running-related injuries in recreational athletes. : lncidence, risk factors and effectiveness of an injury-prevention programme
- 2021
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Running as a form of physical activity continues to grow in popularity and is accompanied by a number of health benefits, but one of the greatest threats that challenge these benefits is running-related injuries. The overall aim of this thesis is to identify the proportion of runners who sustain a running-related injury (incidence), possible reasons as to why they sustain these injuries (risk factors) and, finally, whether general injury-prevention guidelines can be effective in reducing the number of running-related injuries in recreational runners. This thesis comprises four studies. Studies I and II of this thesis are prospective cohort studies comprising more than 200 recreational runners from the Gothenburg Half Marathon. Baseline testing prior to study start included range of motion and flexibility tests, a running analysis and isometric strength tests. Weekly training and injury information was collected during a 52-week period. The cumulative incidence proportion of running-related injuries after 52 weeks was 46%. The results revealed that runners with a late timing of maximal eversion, or low hip abductor strength compared with hip adductor strength, sustained more injuries compared with their counterpart runners (Study I). Additionally, runners with a previous injury were found to be almost twice as likely to sustain a new injury compared with runners with no previous injury (Study II). Studies III and IV of this thesis are prospective, observational, comparative studies comprising 433 male and female recreational runners recruited from the Gothenburg Half Marathon. Participants were allocated to either an intervention group (n=228) or a control group (n=205) and submitted weekly information on their training habits and any running-related injury/pain for 18 weeks. The intervention group performed an injury-prevention programme consisting of neuromuscular control and foam-rolling exercises, twice a week for the duration of the study. No significant differences were found when investigating exposure states of weekly running distance and running-related injuries. However, increasing the weekly running distance by more than 30% appeared to be accompanied by a higher risk of injury, compared with keeping within a 10% increase or decrease, despite these findings lacking statistical significance (Study III). When exploring the effects of the intervention programme, we found that runners with high compliance with the intervention were 85% less likely to sustain an injury compared with the control group (Study IV).
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| 4. |
- Desai, S., et al.
(författare)
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Validation of WINROP (online prediction model) to identify severe retinopathy of prematurity (ROP) in an Australian preterm population: a retrospective study
- 2021
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Ingår i: Eye. - : Springer Science and Business Media LLC. - 0950-222X .- 1476-5454. ; 35, s. 1334-1339
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Tidskriftsartikel (refereegranskat)abstract
- Introduction Retinopathy of prematurity (ROP) is the most common disease leading to blindness in extreme preterm infants. Current screening guidelines recommend frequent eye examinations. There is a dearth of trained ophthalmologists for these frequent screening procedures. The ANZNN neonatal network report (2013) found that only 6.4% of all screened infants had severe ROP and less than half received treatment. WINROP (online prediction model, Sweden) uses the postnatal weight gain (surrogate marker for low insulin-like growth factor IGF-1 and poor retinal vascular growth) to identify ROP requiring treatment and aims to reduce the number of examinations. Our objective was to validate the WINROP model in an Australian cohort of preterm infants. Methods Birth weight, gestational age, and weekly weight measurements were retrieved retrospectively along with the final ROP outcomes and plotted on the online WINROP software. Results The sensitivity, specificity, positive predictive value, and negative predictive value of WINROP were 85.7%, 59.0%, 6.98%, and 99.1% respectively for a cohort of 221 preterm infants (Median birth weight, 1040 g; Gestational age, 27.9 weeks). WINROP alarm was signaled in 42.6% of all infants. WINROP did not signal an alarm in one infant who needed treatment. This infant had intra ventricular hemorrhage grade 3-4 and temporary ventricular dilatation. Conclusions This is the first Australian study validating WINROP model. Our findings suggest that it lacked sensitivity to be used alone. However, adjusting the algorithm for the Australian population may improve the efficacy and reduce the number of examinations when used along with the current screening guidelines.
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| 5. |
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| 6. |
- Jungmalm, Jonatan, 1991, et al.
(författare)
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Associations between biomechanical and clinical/anthropometrical factors and running-related injuries among recreational runners: a 52-week prospective cohort study.
- 2020
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Ingår i: Injury epidemiology. - : Springer Science and Business Media LLC. - 2197-1714. ; 7:1
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of this exploratory study was to investigate whether runners with certain biomechanical or clinical/anthropometrical characteristics sustain more running-related injuries than runners with other biomechanical or clinical/anthropometrical characteristics.The study was designed as a prospective cohort with 52-weeks follow-up. A total of 224 injury-free, recreational runners were recruited from the Gothenburg Half Marathon and tested at baseline. The primary exposure variables were biomechanical and clinical/anthropometrical measures, including strength, lower extremity kinematics, joint range of motion, muscle flexibility, and trigger points. The primary outcome measure was any running-related injury diagnosed by a medical practitioner. Cumulative risk difference was used as measure of association. A shared frailty approach was used with legs as the unit of interest. A total of 448 legs were included in the analyses.The cumulative injury incidence proportion for legs was 29.0% (95%CI=24.0%; 34.8%). A few biomechanical and clinical/anthropometrical factors influence the number of running-related injuries sustained in recreational runners. Runners with a late timing of maximal eversion sustained 20.7% (95%CI=1.3; 40.0) more injuries, and runners with weak abductors in relation to adductors sustained 17.3% (95%CI=0.8; 33.7) more injuries, compared with the corresponding reference group.More injuries are likely to occur in runners with late timing of maximal eversion or weak hip abductors in relation to hip adductors.
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| 8. |
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| 9. |
- Jungmalm, Jonatan, 1991, et al.
(författare)
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Study protocol of a 52-week Prospective Running Injury study in Gothenburg (SPRING)
- 2018
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Ingår i: BMJ Open Sport Exercise Medicine. - : BMJ. - 2044-6055 .- 2055-7647. ; 4:1
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Tidskriftsartikel (refereegranskat)abstract
- Introduction It is assumed that a running-related (overuse) injury occurs when a specific structure of the human body is exposed to a load that exceeds that structures’ load capacity. Therefore, monitoring training load is an important key to understanding the development of a running-related injury. Additionally, other distribution, magnitude and capacity-related factors should be considered when aiming to understand the causal chain of injury development. This paper presents a study protocol for a prospective cohort study that aims to add comprehensive information on the aetiology of running-related injuries and present a new approach for investigating changes in training load with regard to running-related injuries. Methods and analysis This study focused on recreational runners, that is, runners exposed to a minimum weekly average of 15 km for at least 1 year. Participants will undergo baseline tests consisting of a clinical/anthropometrical examination and biomechanical measurements. Furthermore, participants will log all training sessions in a diary on a weekly basis for 1 year. The primary exposure variable is changes in training load. A medical practitioner will examine runners suffering from running-related pain and, if possible, make a clear diagnosis. Finally, additional time-varying exposure variables will be included in the main analysis, whereas the analysis for the secondary purpose is based on timefixed baseline-related risk factors.
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| 10. |
- Lundberg Zachrisson, Andreas, 1987, et al.
(författare)
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Athlete availability and incidence of overuse injuries over an athletics season in a cohort of elite Swedish athletics athletes - A prospective study
- 2020
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Ingår i: Injury Epidemiology. - London : Springer Science and Business Media LLC. - 2197-1714. ; 7:1
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Tidskriftsartikel (refereegranskat)abstract
- Background: Athletics is a sport with a high incidence of injury, where most injuries are caused by overuse. Research on injury incidence and the occurrence of overuse injuries during a season in athletics is scarce. An athlete availability (unrestricted ability to participate in training or competition) of less than 80% has been linked with athletes being less likely to reach their performance goals. The purpose of this study was to estimate the monthly injury incidence rates, athlete availability, and the overuse injury incidence rate per 1000 athletics-hours of training in a cohort of Swedish elite athletics athletes. Methods: The cohort consisted of 59 male and female elite athletes competing in either middle or long-distance running, sprint, or jumping events. Injury and training data were collected during one athletics season, from October to the end of August. All injury data were collected by medical professionals. Training data were collected monthly, and consisted of event-specific training diaries covering training sessions, training days, and non-training or non-competition days. Monthly injury incidence rates were based on the number of new injuries per month in relation to the number of exposed (injury-free) athletes. Results: The overall injury incidence rate for all athletes was highest in October (22.0%). Monthly injury incidence rate for middle and long-distance runners was highest in October (26.1%), for sprinters in April (19.0%), and for jumpers in October (21.4%). The overall athlete availability was 78.0% for the cohort. Sprinters had the lowest athlete availability (71.4%), followed by jumpers (77.3%), and middle-distance and long-distance runners (82.7%). Female athletes (76.5%) had a lower athlete availability than male athletes (79.7%). The injury incidence rate was 1.81 injuries per 1000 athletics hours of training. Middle and long-distance runners had the highest injury incidence rate (2.38), followed by jumpers (1.62), and sprinters (1.34). Conclusion: Monthly injury incidence rates during a season appears to correspond to periods of high training volume (conditioning phases and training camps). The low overall athlete availability (> 80%) indicates that many Swedish elite athletes are less likely to reach their full potential. © 2020 The Author(s).
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