Among community-dwelling older adults, life-space mobility — the range and independence of daily movement — tracked with measured physical performance and, independently, with excessive daytime sleepiness. Both factors are modifiable, making them practical targets for preserving functional autonomy and the social participation that accompanies it.
Key Points
- Physical performance strongly predicts how far older adults move daily
- Daytime sleepiness independently constrains life-space mobility range
- Life-space mobility integrates functional capacity with social participation
Longevity Analysis
Life-space mobility functions as a composite readout of muscular capacity, alertness, and confidence — a single observable behavior reflecting the state of several underlying processes at once. Daytime sleepiness in older adults frequently signals untreated sleep-disordered breathing, medication burden, or disrupted circadian signaling, each correctable before strength work is added; addressing the sedating input often restores more movement than exercise prescription alone. Tracking the radius of daily movement over months provides an early, low-cost indicator of decline in the systems governing strength, gait, and wakefulness, well before frailty becomes clinically evident.
Original published by SAGE Research on Aging, by Paula Moreno-Reyes, Wilson Pastén-Hidalgo, Sebastián Vasconcelos Cuevas, Jimmy Alexander Espinoza Morocho, Mauricio Barramuño Medina, Walter Sepúlveda-Loyola1Department of Kinesiology, Faculty of Health Sciences, 28054Universidad de Atacama, Copiapó, Chile2Faculty of Health Sciences, Kinesiology Program, 125381Universidad Autónoma de Chile, Temuco, Chile3Department of Health Sciences, 28059Universidad de Las Américas, Santiago, Chile.