Table 5.

Linear regression models for repeated chair rise and TUG performance in older adults without pain (N = 54)

Model	Independent variables	R2 change	Adjusted R2	P change
Dependent variable = Repeated chair rise performance
1	Age, sex, BMI	0.109	0.056	0.119
2	Model 1 + flexion	0.012	0.049	0.423
3	Model 2 + extension	0.127	0.169	0.007*
4	Model 3 + average side-bending	0.014	0.168	0.347
Standardized β(P) for flexion, extension, & average side-bending = 0.055 (0.719), −0.353 (0.013),* & −0.145 (0.347)
Dependent variable = TUG performance
1	Age, sex, BMI	0.232	0.186	0.004*
2	Model 1 + flexion	0.029	0.201	0.171
3	Model 2 + extension	0.103	0.298	0.008*
4	Model 3 + average side-bending	0.003	0.286	0.660
Standardized β(P) for flexion, extension, & average side-bending = −0.052 (0.714), −0.331 (0.012),* & −0.063 (0.660)

TUG = timed up-and-go test; BMI = body mass index.

*P < 0.05.