| 1. |
- Andersson, Fredrik, et al.
(author)
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Development of A Training And Injury Log For Powerlifting : A Feasibility Study
- 2023
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In: International Journal of Strength and Conditioning. - : International Universities Strength and Conditioning Association. - 2634-2235. ; 3:1
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Journal article (peer-reviewed)abstract
- Research on risk factors and injuries in powerlifting has so far only been studied through cross-sectional/observational studies. In other sports, training load has been prospectively investigated and shown to influence injury risk. However, no method to quantify training load in powerlifting exist. The purpose of this study was to assess the feasibility of a novel standardized method for prospective recording of training load and injuries. The study was conducted in two phases with eight powerlifters initially included in each phase respectively. In Phase 1, the powerlifters registered training load and injuries throughout four weeks and answered a feasibility questionnaire. Based on the results from the questionnaire, updates to the training and injury log were made and the powerlifters in Phase 2 used the updated version to log four weeks of training. Training load and injuries were reported consistently which made calculations on training load and injury incidence possible. The participants reported rate of perceived exertion as difficult to assess and report. However, 9/12 powerlifters stated that they could the training and injury log for a period of at least six months. In conclusion, this standardized training and injury log seems to be a feasible method to quantify training load and injuries in powerlifting. The method could be used in further prospective studies on training load and injuries in powerlifting and in clinical practice.
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| 2. |
- Bengtsson, Victor, et al.
(author)
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Thoracolumbar and Lumbopelvic Spinal Alignment During the Barbell Back Squat : A Comparison Between Men and Women
- 2023
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In: International Journal of Sports Physical Therapy. - : International Journal of Sports Physical Therapy. - 2159-2896. ; 18:4, s. 820-830
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Journal article (peer-reviewed)abstract
- Background: Maintaining neutral spinal alignment is considered important when performing the barbell back squat exercise. Since male and female lifters may differ in injury location it is important to examine whether they differ in spinal alignment during the back squat.Objectives: The study aimed to quantify the spinal alignment in the upper and lower lumbar spine during the barbell back squat exercise in male and female lifters. Secondary aims were to compare alignment during the back squat to standing habitual lumbar spine alignment and determine whether male and female lifters differ in these aspects.Study design: Observational, Cross-sectional.Methods: Competitive power- and weightlifters were recruited and performed three repetitions of the barbell back squat exercise using a load equivalent to 70% of their one-repetition maximum. Spinal alignment and range of motion were measured using inertial measurement units placed on the thoracic, lumbar and sacral spine. Data was presented descriptively and comparisons between men and women as well as spinal alignment in four different positions were done with a factorial repeated measures analysis of variance.Results: Twenty-three (14 males, 9 females) were included. During execution of the squat, spinal alignment adjustments in the lumbar spine were made in all three planes of movement, compared to the start position, in both male and female lifters. Compared to their standing habitual posture, all lifters adjusted their upper lumbar spine to a less lordotic position when in the start position of the back squat (standing upright with the barbell on their back). Only male lifters assumed a less lordotic alignment in their lower lumbar spine in the start position compared their habitual posture.Conclusions: Adjustments of spinal alignment, predominantly in the sagittal plane, are made during execution of the back squat in both male and female lifters. Further, lifters adopt a less lordotic alignment with a heavy barbell on their upper back, more so in male than female lifters. In conclusion, it seems that spinal alignment changes noticeably during the barbell back squat.Level of evidence: 3
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| 3. |
- Larsson, Hampus, et al.
(author)
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Lumbopelvic movement control in powerlifters with and without low back pain
- 2024
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In: Physical Therapy in Sport. - : Elsevier. - 1466-853X .- 1873-1600. ; 65, s. 74-82
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Journal article (peer-reviewed)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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| 4. |
- Lundström, Anders, et al.
(author)
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Virtual reality for assessment of chronic lower back pain in physiotherapy : task selection, design, and user experience evaluation
- 2024
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In: Design Research Society (DRS) conference, Boston, USA, June 24-28, 2024.
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Conference paper (peer-reviewed)abstract
- Chronic low back pain (CLBP) presents a significant challenge in healthcare, re-quiring effective tools for rehabilitation and assessment. This study explores the use of virtual reality (VR) for assessment of physical function in patients with CLBP, and investigates how movements and tasks can be designed for assessment purposes. The focus is on physiotherapists' perceptions of using VR regarding task design, feasibility, and user experience. We conducted three design workshops with physiotherapists and HCI researchers, and designed three VR applications that we evaluated with six physiotherapy students. The study provides valuable insights into participants' perceptions and highlights promising and challenging aspects of using VR in physiotherapy assessment. We found the approach to be useful and have potential. However, additional focus is needed on task design, measures of physical function, and designing for body size diversity. This study lays the groundwork for designing physiotherapeutic assessment of patients with CLBP.
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