Strength development following a six-week risk reduction athletic development training program in men and women
This study retrospectively evaluated data from an athlete management system on the impact of a 6-week, 12-session risk-reduction athletic development training program on maximal isometric strength in post-rehabilitative and healthy men and women. Maximal isometric quadriceps and hamstrings strength...
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KeAi Communications Co., Ltd.
2025-07-01
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| Series: | Sports Medicine and Health Science |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666337624001008 |
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| author | Christopher J. Cleary Krisha Crane Lisa M. Vopat Bryan G. Vopat Ashley A. Herda |
| author_facet | Christopher J. Cleary Krisha Crane Lisa M. Vopat Bryan G. Vopat Ashley A. Herda |
| author_sort | Christopher J. Cleary |
| collection | DOAJ |
| description | This study retrospectively evaluated data from an athlete management system on the impact of a 6-week, 12-session risk-reduction athletic development training program on maximal isometric strength in post-rehabilitative and healthy men and women. Maximal isometric quadriceps and hamstrings strength were evaluated bilaterally before and after the training program. Out of 55 athletes that had participated in the program, a total of 37 athletes' (13–28 years old) recorded outcomes were utilized in analyses. Thirty-one athletes had undergone rehabilitation (post-rehabilitative athletes) after orthopedic knee surgeries. Six athletes with no previous surgeries performed (healthy athletes) also completed the 6-week program. Repeated measures analyses of variance (leg × time) assessed changes in quadriceps and hamstrings strength at an alpha of p ≤ 0.05. There was a main effect for time where the post-rehabilitative athletes’ quadriceps and hamstrings strength increased by (mean difference ± standard error) (4.2 ± 0.7) kg (p < 0.01) and (4.5 ± 0.9) kg (p < 0.01) respectively, with legs (operative [OP]) and non-operative [NOP]) combined. With time points combined, the OP limb was weaker than the NOP limb for quadriceps strength by (2.9 ± 0.7) kg (p < 0.01) with no differences in hamstrings strength. For the healthy athletes, there were no changes for quadriceps strength and hamstring strength improved across time by (5.3 ± 1.4) kg (p = 0.01) with legs combined.In conclusion, there were improvements in post-rehabilitative and healthy athletes’ isometric strength after the training program. However, between-limb strength asymmetries were still apparent in the post-rehabilitation cohort. |
| format | Article |
| id | doaj-art-a4a24be13f2d4caf94e11f22a319b2e5 |
| institution | DOAJ |
| issn | 2666-3376 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Sports Medicine and Health Science |
| spelling | doaj-art-a4a24be13f2d4caf94e11f22a319b2e52025-08-20T03:09:01ZengKeAi Communications Co., Ltd.Sports Medicine and Health Science2666-33762025-07-017428028410.1016/j.smhs.2024.09.004Strength development following a six-week risk reduction athletic development training program in men and womenChristopher J. Cleary0Krisha Crane1Lisa M. Vopat2Bryan G. Vopat3Ashley A. Herda4Exercise and Human Performance Laboratory, Department of Health, Sport, and Exercise Sciences, University of Kansas Edwards Campus, 12604 Quivira Rd, Overland Park, KS, 66213, USAUniversity of Kansas Health Systems, Sports Medicine and Performance Center, 8302 W 125th St, Overland Park, KS, 66213, USAUniversity of Kansas Medical Center, Department of Orthopedic Surgery and Sports Medicine, 3901 Rainbow Boulevard, Kansas City, KS, 66160, USAUniversity of Kansas Medical Center, Department of Orthopedic Surgery and Sports Medicine, 3901 Rainbow Boulevard, Kansas City, KS, 66160, USAExercise and Human Performance Laboratory, Department of Health, Sport, and Exercise Sciences, University of Kansas Edwards Campus, 12604 Quivira Rd, Overland Park, KS, 66213, USA; University of Kansas Medical Center, Department of Orthopedic Surgery and Sports Medicine, 3901 Rainbow Boulevard, Kansas City, KS, 66160, USA; Corresponding author. Department of Health, Sport, and Exercise Sciences, University of Kansas-Edwards Campus, 12604 Quivira Road, BEST 350X, Overland Park, KS, 66213, USA.This study retrospectively evaluated data from an athlete management system on the impact of a 6-week, 12-session risk-reduction athletic development training program on maximal isometric strength in post-rehabilitative and healthy men and women. Maximal isometric quadriceps and hamstrings strength were evaluated bilaterally before and after the training program. Out of 55 athletes that had participated in the program, a total of 37 athletes' (13–28 years old) recorded outcomes were utilized in analyses. Thirty-one athletes had undergone rehabilitation (post-rehabilitative athletes) after orthopedic knee surgeries. Six athletes with no previous surgeries performed (healthy athletes) also completed the 6-week program. Repeated measures analyses of variance (leg × time) assessed changes in quadriceps and hamstrings strength at an alpha of p ≤ 0.05. There was a main effect for time where the post-rehabilitative athletes’ quadriceps and hamstrings strength increased by (mean difference ± standard error) (4.2 ± 0.7) kg (p < 0.01) and (4.5 ± 0.9) kg (p < 0.01) respectively, with legs (operative [OP]) and non-operative [NOP]) combined. With time points combined, the OP limb was weaker than the NOP limb for quadriceps strength by (2.9 ± 0.7) kg (p < 0.01) with no differences in hamstrings strength. For the healthy athletes, there were no changes for quadriceps strength and hamstring strength improved across time by (5.3 ± 1.4) kg (p = 0.01) with legs combined.In conclusion, there were improvements in post-rehabilitative and healthy athletes’ isometric strength after the training program. However, between-limb strength asymmetries were still apparent in the post-rehabilitation cohort.http://www.sciencedirect.com/science/article/pii/S2666337624001008Anterior cruciate ligament reconstructionAsymmetryInjury preventionSports medicine |
| spellingShingle | Christopher J. Cleary Krisha Crane Lisa M. Vopat Bryan G. Vopat Ashley A. Herda Strength development following a six-week risk reduction athletic development training program in men and women Sports Medicine and Health Science Anterior cruciate ligament reconstruction Asymmetry Injury prevention Sports medicine |
| title | Strength development following a six-week risk reduction athletic development training program in men and women |
| title_full | Strength development following a six-week risk reduction athletic development training program in men and women |
| title_fullStr | Strength development following a six-week risk reduction athletic development training program in men and women |
| title_full_unstemmed | Strength development following a six-week risk reduction athletic development training program in men and women |
| title_short | Strength development following a six-week risk reduction athletic development training program in men and women |
| title_sort | strength development following a six week risk reduction athletic development training program in men and women |
| topic | Anterior cruciate ligament reconstruction Asymmetry Injury prevention Sports medicine |
| url | http://www.sciencedirect.com/science/article/pii/S2666337624001008 |
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