Adapted Lifestyle-integrated Functional Exercise Program for Medically Underserved Older Adults

The Self-Reported Habit Index (SRHI)

The Self-Reported Habit Index (SRHI) is a 12-item assessment assesses habit exercise strength, frequency, relevance to self-identity, and automaticity. Items are self-rated with a seven-point Likert scale (1=strongly disagree, 7= strongly agree). Total score range from 12 to 84, where higher scores indicate stronger the habit is.

Time frame: Baseline and 12 weeks

The Activities-specific Balance Confidence Scale (ABC)

The Activities-specific Balance Confidence Scale (ABC) is 16-item self-report measure in which participates rate their balance confidence for performing activities. Each item is rated on a 0-100 scale (0= no confidence, 100 = complete confidence). A final score is the average of all items ( range from 0 to 100).

Time frame: 12 weeks

The Short Physical Performance Battery (SPPB)

The Short Physical Performance Battery-Balance Test (SPPB) assess balance and mobility with three subtests (score range: 0 to 4): standing balance, three-meter gait speed, and five repetitions of sit-to-stand motion. Total score are sums of subtest scores ranging from 0 (worst performance) to 12 (best performance).

Time frame: Baseline and 12 weeks

Center of Pressure (CoP) Path (cm)

Center of Pressure (Cop) is measured by a balance board system BtracKS. Participant stands on the balance board in 4 posture in three 30-second trials for each posture: hip-width stand (HS), hip-width stand with eyes closed (HSEC), narrow stand (NS), narrow stand with eyes closed (NSEC). Trajectory and mean velocity of CoP in each postures are calculated to represent static balance. Larger trajectory or velocity indicates lower static balance.