Table 3.

Principal component analysis (PCA) at (t₂)

	Component 1	Component 2
SCPTT	0.912	0.031
TUG	0.905	0.230
4mGS	0.887	0.119
6MWT	− 0.800	− 0.029
5TCR	0.660	0.494
SCPTP	− 0.675	0.569
HGS	− 0.368	0.836

HGS handgrip strength, SCPTT stair climb power test (time), SCPTP (Power), TUG timed up & go, 4mGS 4 m gait speed, 5TCR 5 times chair rise, 6mWT 6 min walk test