The Journal of Korean Physical Therapy Indexed in /covered by CAS, KoreaScience & DOI/Crossref:eISSN 2287-156X   pISSN 1229-0475

The Journal of Korean Physical Therapy Indexed in /covered by CAS, KoreaScience & DOI/Crossref:eISSN 2287-156X pISSN 1229-0475

Table. 3.

Table. 3.

Correlation among LLD, difference of muscle activity, onset time of muscle contraction, and vertical ground reaction force between short and long leg side during lifting (unit: r)

Variables LLD D-RA D-ES D-RF DT-RA DT-ES DT-RF D-vGRF
LLD 1
D-RA 0.921** 1
D-ES 0.924** 0.948** 1
D-RF 0.941** 0.941** 0.989** 1
DT-RA 0.948** 0.879** 0.950** 0.948** 1
DT-ES 0.988** 0.904** 0.915** 0.935** 0.955** 1
DT-RF 0.980** 0.931** 0.957** 0.968** 0.965** 0.978** 1
D-vGRF 0.745** 0.717** 0.719** 0.733** 0.708** 0.714** 0.728** 1

LLD: Leg length difference, D-RA: Difference of rectus abdominis muscle activity, D-ES: Difference of erector spinae muscle activity, D-RF: Difference of rectus femoris muscle activity, DT-RA: Difference of contraction onset time of rectus abdominis, DT-ES: Difference of contraction onset time of erector spinae, DT-RF: Difference of contraction onset time of rectus femoris, D-vGRF: Difference of vertical ground reaction force.

**p< 0.01.

J Kor Phys Ther 2022;34:175-80 https://doi.org/10.18857/jkpt.2022.34.4.175
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