Tzurei Chen1, Li-Shan Chou2. 1. Department of Human Physiology, University of Oregon, Eugene, OR; Department of Physical Therapy, University of Evansville, Evansville, IN. 2. Department of Human Physiology, University of Oregon, Eugene, OR. Electronic address: chou@uoregon.edu.
Abstract
OBJECTIVE: To examine the association of muscle strength and balance control with the amount of time taken to perform sit-to-walk (STW) or turning components of the Timed Up and Go (TUG) test in older adults. DESIGN: Correlations; multiple regression models. SETTING: General community. PARTICIPANTS: Older adults (N=60) age >70 years recruited from the community. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Muscle strength, balance control, and TUG test performance time. Muscle strength was quantified by peak joint moments during the isometric maximal voluntary contraction test for bilateral hip abductors, knee extensors, and ankle plantar flexors. Balance control was assessed with the Berg Balance Scale, Fullerton Advanced Balance Scale, and center of mass and ankle inclination angle derived during the TUG test performance. RESULTS: We found that balance control measures were significantly associated with both STW and turning durations even after controlling for muscle strength and other confounders (STW duration: P<.001, turning duration: P=.001). Adding strength to the regression model was found to significantly improve its prediction of STW duration (F change =5.945, P=.018), but not turning duration (F change =1.03, P=.14). CONCLUSIONS: Our findings suggest that poor balance control is an important factor that contributes to longer STW and turning durations on the TUG test. Furthermore, strength has a higher association with STW than turning duration.
OBJECTIVE: To examine the association of muscle strength and balance control with the amount of time taken to perform sit-to-walk (STW) or turning components of the Timed Up and Go (TUG) test in older adults. DESIGN: Correlations; multiple regression models. SETTING: General community. PARTICIPANTS: Older adults (N=60) age >70 years recruited from the community. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Muscle strength, balance control, and TUG test performance time. Muscle strength was quantified by peak joint moments during the isometric maximal voluntary contraction test for bilateral hip abductors, knee extensors, and ankle plantar flexors. Balance control was assessed with the Berg Balance Scale, Fullerton Advanced Balance Scale, and center of mass and ankle inclination angle derived during the TUG test performance. RESULTS: We found that balance control measures were significantly associated with both STW and turning durations even after controlling for muscle strength and other confounders (STW duration: P<.001, turning duration: P=.001). Adding strength to the regression model was found to significantly improve its prediction of STW duration (F change =5.945, P=.018), but not turning duration (F change =1.03, P=.14). CONCLUSIONS: Our findings suggest that poor balance control is an important factor that contributes to longer STW and turning durations on the TUG test. Furthermore, strength has a higher association with STW than turning duration.
Authors: Gallin Montgomery; Jamie McPhee; Mati Pääsuke; Sarianna Sipilä; Andrea B Maier; Jean-Yves Hogrel; Hans Degens Journal: J Clin Med Date: 2020-05-21 Impact factor: 4.241
Authors: Marica Giardini; Ilaria Arcolin; Marco Godi; Simone Guglielmetti; Alessandro Maretti; Armando Capelli; Stefano Corna Journal: Int J Environ Res Public Health Date: 2022-08-26 Impact factor: 4.614