Comparison of the Angles and Corresponding Moments in the Knee and Hip During Restricted and Unrestricted Squats
| Autor: | Mirjam Stoop, Hans Gerber, Edgar Stüssi, Florian Schellenberg, Renate List, Silvio Lorenzetti, Turgut Gülay |
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| Rok vydání: | 2012 |
| Předmět: |
Adult
Male musculoskeletal diseases Weight Lifting Posture Knee flexion Dentistry Physical Therapy Sports Therapy and Rehabilitation Body weight Quadriceps Muscle Inverse dynamics Young Adult Humans Knee Orthopedics and Sports Medicine Force platform Muscle Strength Mathematics Orthodontics Hip business.industry musculoskeletal neural and ocular physiology Quadriceps muscle General Medicine musculoskeletal system Weight lifting Biomechanical Phenomena body regions Muscle strength Female business human activities Hip flexion |
| Zdroj: | Journal of Strength and Conditioning Research. 26:2829-2836 |
| ISSN: | 1064-8011 |
| DOI: | 10.1519/jsc.0b013e318267918b |
| Popis: | The aim of this study was to compare the angles and corresponding moments in the knee and hip during squats. Twenty subjects performed restricted and unrestricted squats with barbell loads that were 0, ¼, and ½ their body weight. The experimental setup consisted of a motion capture system and 2 force plates. The moments were calculated using inverse dynamics. During the unrestricted squats, the maximum moments in the knee were significantly higher, and those in the hip were significantly lower than during restricted squats. At the lowest position, the maximum knee flexion angles were approximately 86° for the restricted and approximately 106° for the unrestricted techniques, whereas the maximum hip flexion angle was between 95° and 100°. The higher moments in the hip during restricted squats suggest a higher load of the lower back. Athletes who aim to strengthen their quadriceps should consider unrestricted squats because of the larger knee load and smaller back load. |
| Databáze: | OpenAIRE |
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