The Effects of PeptiStrong and Whey on Muscle Function In Older Adults

Chair Stand Test - Part of short performance physical battery

Change from baseline to end of study in physical function assessment via chair stands. This test measures the time taken to complete 5 sit-to-stand repetitions in seconds. A lower time (fewer seconds) = better performance. As part of the full short performance physical battery it is converted to a subscore of 0-4, where a higher score = better performance

Time frame: Baseline to week 4

Gait Speed as part of short performance physical battery

Change from baseline to end of study in physical function assessment assessed as time to walk a fixed distance in seconds and reporting in meters per second. Higher speeds indicate better performance. This is converted to a subscore of 0-4 within the full short performance physical battery

Time frame: Baseline to week 4

6 Minute Walking Endurance Test

Change from baseline to end of study in physical function and endurance assessed as the total distance walked in 6 minutes in meters. A greater distance reflects better walking endurance and functional capacity.

Time frame: Baseline to week 4

Balance test as part of short performance physical battery

Change from baseline to end of study in balance as assessed by the ability to hold three standing positions of increasing difficulty: side-by-side, semi-tandem, and tandem stance in seconds. Higher scores indicate better balance. The overall score is converted to a a sub-score of 0-4 within the full short performance physical battery.

Time frame: Baseline to week 4