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- 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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