Physical Therapy Korea
pISSN 1225-8962 eISSN 2287-982X

Comparison of isokinetic muscle strength test for external and internal rotator between the two groups (N = 315)

Surgery group (n = 145) Non-surgery group (n = 170) p-value
External rotator peak torque 12.1 ± 7.3 15.1 ± 7.3 0.539
External rotator PT/BW (%) 17.7 ± 9.7 22.7 ± 9.2 0.984
External rotator deficit (%) 26.3 ± 33.8 11.3 ± 23.9 0.001*
Internal rotator peak torque 27.6 ± 11.7 29.6 ± 11.6 0.474
Internal rotator PT/BW (%) 41.1 ± 16.8 45.2 ± 14.6 0.083
Internal rotator deficit (%) 17.1 ± 26.1 11.7 ± 15.5 0.001*
External/internal rotator ratio 44.2 ± 19.6 50.9 ± 16.8 0.003*

Values are presented as mean ± standard deviation. PT/BW, peak torque per body weight. *The mean difference is significant at the 0.05 level.

Phys. Ther. Korea 2024;31:219~226 https://doi.org/10.12674/ptk.2024.31.3.219
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