TY  - JOUR
A1  - Mühlbauer, Thomas
A1  - Mettler, Claude
A1  - Roth, Ralf
A1  - Granacher, Urs
T1  - One-leg standing performance and muscle activity: Are there limb differences?
JF  - Journal of applied biomechanics
N2  - The purpose of this study was to compare static balance performance and muscle activity during one-leg standing on the dominant and nondominant leg under various sensory conditions with increased levels of task difficulty. Thirty healthy young adults (age: 23 +/- 2 years) performed one-leg standing tests for 30 s under three sensory conditions (ie, eyes open/firm ground; eyes open/foam ground [elastic pad on top of the balance plate]; eyes closed/firm ground). Center of pressure displacements and activity of four lower leg muscles (ie, m. tibialis anterior [TA], m. soleus [SOL], m. gastrocnemius medialis [GAS], m. peroneus longus [PER]) were analyzed. An increase in sensory task difficulty resulted in deteriorated balance performance (P < .001, effect size [ES] = .57-2.54) and increased muscle activity (P < .001, ES = .50-1.11) for all but two muscles (ie, GAS, PER). However, regardless of the sensory condition, one-leg standing on the dominant as compared with the nondominant limb did not produce statistically significant differences in various balance (P > .05, ES = .06-.22) and electromyographic (P > .05, ES = .03-.13) measures. This indicates that the dominant and the nondominant leg can be used interchangeably during static one-leg balance testing in healthy young adults.
KW  - postural control
KW  - electromyography
KW  - sensory input
KW  - task difficulty
Y1  - 2014
U6  - https://doi.org/10.1123/jab.2013-0230
SN  - 1065-8483
SN  - 1543-2688
VL  - 30
IS  - 3
SP  - 407
EP  - 414
PB  - Human Kinetics Publ.
CY  - Champaign
ER  -