Correlation of the Y-Balance Test with Lower-limb Strength of Adult
Women |
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| Authors: | Dong-Kyu Lee Gyoung-Mo Kim Sung-Min Ha Jae-Seop Oh |
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| Institution: | 1) Department of Rehabilitation Science, Graduate School, Inje University, Republic of Korea;2) Department of Physical Therapy, Baekseok University, Republic of Korea;3) Department of Physical Therapy, Sangji University, Republic of Korea;4) Department of Physical Therapy, College of Biomedical Science and Engineering, Inje University, Republic of Korea |
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| Abstract: | Purpose] The purpose of this study was to elucidate the relationship between Y-balance
test (YBT) distance and the lower-limb strength of adult women. Subjects] Forty women
aged 45 to 80 years volunteered for this study. Methods] The participants were tested for
maximal muscle strength of the lower limbs (hip extensors, hip flexors, hip abductors,
knee extensors, knee flexors, and ankle dorsiflexors) and YBT distances in the anterior,
posteromedial, and posterolateral directions. Pearson’s correlation coefficient was used
to quantify the linear relationships between YBT distances and lower-limb strength.
Results] Hip extensor and knee flexor strength were positively correlated with YBT
anterior distance. Hip extensor, hip abductor, and knee flexor strength were positively
correlated with the YBT posteromedial distance. Hip extensor and knee flexor strength were
positively correlated with YBT posterolateral distance. Conclusion] There was a weak
correlation between lower-limb strength (hip extensors, hip abductors, and knee flexors)
and dynamic postural control as measured by the YBT.Key words: Adult women, Lower-limb strength, Y-balance test |
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