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

Maximum voluntary isometric contraction

Muscle name Group p-value 95% CI

FHP Non-FHP
Thoracic ES LTuV 131.24 ± 42.75 266.90 ± 56.65 < 0.001* –163.61 to –107.70
Thoracic ES RTuV 92.69 ± 41.04 205.82 ± 65.25 < 0.001* –143.49 to –82.76
Lumbar ES LTuV 91.59 ± 29.33 221.07 ± 202.97 0.002 –210.25 to –48.80
Lumbar ES RTuV 86.77 ± 34.72 189.50 ± 60.25 < 0.001* –130.12 to –75.33

CI, confidence interval; FHP, forward head posture; Thoracic ES LTuV, thoracic erector spinae on the left side; Thoracic ES RTuV, thoracic erector spinae on the right side; Lumbar ES LTuV, lumbar erector spinae on the left side; Lumbar ES RTuV, lumbar erector spinae on the right side. *p < 0.001.

Phys. Ther. Korea 2024;31:159~166 https://doi.org/10.12674/ptk.2024.31.2.159
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