Consort diagram for flow of participants through the trial.
RECRUITMENT
Thirty-two older adults met the criteria, and all of them participated in this study. They were randomly allocated into the PNF or the control groups at a ratio of 1:1 (PNF: control). The randomization sequence was computer-generated. Allocation information was protected in opaque sealed envelopes and kept by an investigator involved in participant recruitment. The participants in the PNF group received PNF stretching for 8 weeks, and those in the control group partook in the health lecture series for 8 weeks. The participants were excluded when their attendance rates were less than 80% [