Document Type : Original Article
Authors
1
Department of Sports Injuries and Corrective Exercise, Hakim Nizami Qochan Institute of Higher Education, Quchan, Khorasan Razavi Province, Iran
2
Department of Sport Sciences, Faculty of Humanities, Velayat University, Iranshahr, Iran
3
Department of Sport Sciences, Damghan University, Damghan, Iran
Abstract
Purpose:
Genu valgum is one of the children's most common musculoskeletal abnormalities, characterized by knee deviation and balance problems. Therefore, the present study compared eight weeks of TRX suspension exercises and comprehensive corrective exercises on anterior pelvic tilt angle, knee Q angle, and dynamic balance in 8-to-12-year-old girls with genu valgum.
Methods:
In this semi-experimental study, 36 female students with genu valgum were randomly selected from 73 identified individuals in the city of Quchan and divided into three groups: TRX suspension exercises (12 participants), comprehensive corrective exercises (12 participants), and a control group (12 participants). The experimental groups performed exercises for eight weeks, three weekly sessions, and each lasting 45 to 60 minutes. The Q angle was measured with a goniometer, the anterior pelvic tilt angle was assessed using a tilt sensor, and dynamic balance was evaluated using the Star Balance Test in two phases: pre-test and post-test. Data were analyzed using repeated measures analysis of variance (ANOVA) and Bonferroni post hoc tests in SPSS software version 20.
Results:
TRX suspension and comprehensive corrective exercises significantly improved the Q angle, anterior pelvic tilt angle, and dynamic balance in female students with genu valgum (p < 0.05). The effect of exercises on the Q angle (p = 0.003, η² = 0.291) and anterior pelvic tilt angle (p < 0.0001, η² = 0.451) was significant. However, there were no significant differences between groups regarding dynamic balance (p = 0.073, η² = 0.147). Additionally, the interaction of time and group was significant for anterior pelvic tilt angle and dynamic balance (p < 0.05), but not for the Q angle (p = 0.160). Overall, the comprehensive corrective exercises showed superior effects on knee and pelvic mechanics variables, while TRX was more effective in improving balance.
Conclusion:
TRX suspension and comprehensive corrective exercises improve the Q angle, anterior pelvic tilt angle, and balance in female students with genu valgum. However, comprehensive corrective exercises had a greater impact on reducing the anterior pelvic tilt angle, while TRX exercises showed significant improvement in dynamic balance. These findings can serve as a basis for designing rehabilitation and corrective programs for children with genu valgum abnormalities.
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