Before the experiment, the researchers explain the purpose and procedures to the participants. After signing the informed consent form and completing basic personal information, participants perform a 5-minute warm-up. They then practice the test procedure 1-3 times to become familiar with the visual stimuli, followed by a 3-minute rest before the formal experiment. Body composition and physical performance are assessed using handgrip strength, the five-time sit-to-stand test, and the skeletal muscle mass index. Fall risk is evaluated using a localized fall risk awareness questionnaire. Agility is tested using a reaction-based running task. Participants stand in a 1 m × 1 m preparation area, and one of two sensor lights placed 3 meters away lights up randomly. Participants run forward, pass through a photo gate, and touch the light to turn it off. Decision time, movement time, and total time are recorded over 10 trials.
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Decision time
Timeframe: From participant enrollment to the end of testing
movement time
Timeframe: From participant enrollment to the end of testing