Vol. 20 pp.71 - 80.

Effect of Visual Feedback Squat Exercise Using a Ball on Muscle Activity and Q Angle of the Vastus Medialis and Vastus Lateralis in Men with Varus Knee

An adult male with stage 2 varus knee was provided a squat exercise combining visual feedback using mirror and ball exercises to examine changes in the Q-angle and the muscle activity of the medial and lateral muscles. This study aimed to determine effective methods for correcting alignment and achieving normal alignment of the lower extremities.

Methods:

A total of 30 participants were included in this study through random sampling. Participants were randomly assigned to the experimental (the visual feedback squat exercise group using a ball, 15 participants) and control (\the visual feedback squat exercise group without a ball, 15 participants) groups. The exercise intervention comprised four exercises designed based on prior research, performed over 3 weeks. Muscle activity and lower extremity alignment measurement equipment were used as measurement tools. Statistical analysis included the paired samples t-test for within-group comparisons and the independent samples t-test for between-group comparisons.

Results:

The experimental group showed significant improvements in Q-angle and muscle activity of the medial and lateral muscles compared to the control group (p <.05).

Conclusion:

These findings suggest that the visual feedback squat exercise using a ball is more effective than visual feedback squat exercises alone.

:: Volume.20 No.2 December 2024 ::

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Gun-Hee Jang, Se-Jun Oh, Bum-Chul Yoon

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Effect of Visual Feedback Squat Exercise Using a Ball on Muscle Activity and Q Angle of the Vastus Medialis and Vastus Lateralis in Men with Varus Knee

jeho Kim, youngjun Kim, dongki Min

Archives of Orthopedic and Sports Physical Therapy :: Vol.20 pp.71-80

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Song-Ui Bae, Ju-Hyeon Jung, Dong-Chul Moon

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Dong-Woo Kim, Hee-Joon Shin

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Youngdoo Kwon, Taehyun Lim

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Su-Bin Kim, Sun-Young Jung, Dae-Young Kim

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Hyun Ju Jun, Hyun Jin Cho, Min Ki Oh, Pu Reum Song, Yeo Reum Song, Cho Hun Ji

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Dae-Jung Yang, Yo-Han Uhm

Archives of Orthopedic and Sports Physical Therapy :: Vol.20 pp.129-139

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Principles of Chemonucleolysis and Recent Clinical Applications : A Research Perspective

Youngki Hong

Archives of Orthopedic and Sports Physical Therapy :: Vol.20 pp.141-152

DOI: https://doi.org/10.24332/aospt.2024.20.2.15 Download PDF Open abstract