JMIR Publications

ABSTRACT

Background:

Older adults with a history of fall often encounter challenges in participating in group exercise programs. Recent technological advances, such as activity trackers, can potentially enhance home-based exercise programs by providing continuous physical activity monitoring and feedback.

Objective:

To explore whether integrating wearable activity trackers with a home-based exercise intervention is effective in reducing fear of falling and improving physical function in older adults.

Methods:

This was a 12-week, parallel-group, randomized controlled trial involving 30 older adults (≥60 years) with a history of fall. Participants were randomly assigned in a 1:1 ratio to either a group combining an activity tracker with a home-based multi-component exercise intervention, which included in-person exercise sessions, exercise videos, and objective feedback via phone calls (AT+EX group) or to a group using the activity tracker only for self-monitoring (AT-only group). The primary and secondary outcomes included fall-related parameters (fear of falling assessed by the Activities-specific Balance Confidence [ABC] and the Falls Efficacy Scale-International [FES-I] scales), depression (Short Geriatric Depression Scale), cognition (Montreal Cognitive Assessment), physical function (grip strength, Short Physical Performance Battery [SPPB], Timed Up and Go [TUG] test, 2-min Step Test [2MST]), and body composition. Changes in the average daily step count were monitored and analyzed.

Results:

Overall, 28 participants (mean age, 74 years; 76.7% women) completed the 12-week follow-up period (28/30, 93%). In the AT+EX group, significant improvements were observed in fear of falling (ABC: P=.002; FES-I: P=.01). The AT-only group also showed a significant improvement in FES-I score (P=.01). Physical function significantly improved in the AT+EX group (SPPB, P=.004; TUG, P=.008; 2MST, P=.001), whereas the AT-only group showed significant improvement only in the TUG test (P=.002). However, no significant between-group differences were observed in the ABC score, FES-I score, or physical function. Despite no significant increase in daily step counts, both groups maintained close to 10,000 steps/d throughout the 12 weeks.

Conclusions:

Both groups showed improvements in the FES-I and TUG test scores without significant between-group differences. Wearable technology, with or without exercise intervention, seems to be an effective tool in reducing the fear of falling and improving physical function in older adults susceptible to falls. Clinical Trial: Clinical Research Information Service KCT0008230