Relationship Between Lower Extremity Extensor Strength and Wall Squat Performance

• Published in: Han'guk Chŏnmun Mulli Ch'iryo Hakhoe chi = Journal of the Korean Academy of University Trained Physical Therapists Vol. 26; no. 4; pp. 20 - 28
• Main Authors: Jung, Sung-hoon, Hwang, Ui-jae, Kim, Jun-hee, Jeon, In-cheol, Kwon, Oh-yun
• Format: Journal Article
• Language: English
• Published: 한국전문물리치료학회 31.12.2019
• Subjects: 물리치료학
• ISSN: 1225-8962; 2287-982X
• DOI: 10.12674/ptk.2019.26.4.020

Background: The wall squat exercise has been recommended for strengthening of the lower extremity muscles with maintaining lumbar lordosis. Although squat has been studied to be related to lower extremity extensor strength, the relationship between wall squat and lower extremity extensor strength unclear. Because squat and wall squat are biomechanically different, study on the relationship is needed. Objects: The purpose of this study was to determine the lower extremity extensor strength associated with wall squat performance. Methods: 74 healthy volunteers were recruited to participate in this study. The volunteers were measured hip and knee extensors strength and then performed wall squat exercise for maximum count. Results: We found significant relationships between wall squat performance and hip extensor strength normalized by body weight, knee extensor strength normalized by body weight and the composite value. In a regression analysis, hip extensor strength normalized by body weight explained 29% of the variation in wall squat performance in males and 35% in females. Conclusion: These results demonstrate that hip extensor strength normalized by body weight is critical to wall squat performance in both sexes. KCI Citation Count: 0