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Relationships between physical characteristics and biomechanics of lower extremity during the squat
- Source :
- Journal of Exercise Science & Fitness, Vol 19, Iss 4, Pp 269-277 (2021), Journal of Exercise Science and Fitness
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Background/objective: There is a lack of information about relationship between physical characteristics and biomechanics of the lower extremity during the squat. Additionally, studies did not examine sex-related differences. The purpose of this study was to investigate relationships between physical characteristics and biomechanics of the lower extremity during the squat, and to determine if any sex differences are present. Methods: Fifty three participants recruited (21.82 ± 2.3 years; 75.56 ± 14.98 kg; 171.57 ± 8.38 cm) performed three squats with 75% of one repetition maximum. Femur to tibia length ratio, hip and ankle joints’ flexibilities, and relative muscular strength were measured and used as physical characteristics. Net joint torques (NJT) and flexion angles of the lower extremity were extracted as dependent variables. Multiple regression (stepwise) analysis was conducted to examine the relationships with physical characteristics being factors. Pearson correlation coefficients were calculated to determine intercorrelations among the dependent variables. Results: Relative muscular strength was related to hip NJT and knee flexion angle, and hip flexibility was related to ankle dorsiflexion. Hip and knee NJT showed moderate correlations with the corresponding flexion angles (r = 0.48-0.53; p
- Subjects :
- musculoskeletal diseases
Orthodontics
Flexibility (anatomy)
business.industry
Public Health, Environmental and Occupational Health
Biomechanics
Joint flexibility
Physical Therapy, Sports Therapy and Rehabilitation
Squat
musculoskeletal system
Physical strength
Resistance exercise
medicine.anatomical_structure
One-repetition maximum
Motion analysis
GV557-1198.995
Medicine
Original Article
Femur
Tibia
Ankle
business
Sports
Subjects
Details
- ISSN :
- 1728869X
- Volume :
- 19
- Database :
- OpenAIRE
- Journal :
- Journal of Exercise Science & Fitness
- Accession number :
- edsair.doi.dedup.....6d31f32d59c8d6c95aa51f67771d1673