Journal of The Korean Society of Physical Medicine

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Table. 2.

Table. 2.

Comparison of the Effects of Six Crutch Length Measurement Methods on the EMG Activity of the Internal Oblique (IO), Rectus Abdominis (RA), Multifidus (MF), and Erector Spinae (ES) (Unit: %MVIC)

Height-40.6cm Height×.77 Olecranon-to-finger Length Axillary-to-heel Length Arm-span Length-40.6cm Arm-span×.77 F(p)
IO 21.45±6.50a 22.90±7.21 23.30±6.42 23.55±7.63 24.05±6.83 22.10±7.28 .380(.861)
RA 12.90±4.42 11.20±3.97 12.40±6.18 12.10±4.39 17.10±5.79 12.55±4.90 3.418(.006)
MF 17.50±4.87 17.10±4.97 14.95±3.41 17.10±5.09 19.65±5.72 18.55±5.68 1.994(.085)
ES 17.90±4.47 14.95±5.43 17.65±4.22 17.00±5.28 21.35±5.21 17.85±4.20 3.668(.004)

Mean±SD

Significant difference in comparison with Arm-span length-40.6cm

J Korean Soc Phys Med 2020;15:77-84 https://doi.org/10.13066/kspm.2020.15.1.77
© 2020 J Korean Soc Phys Med