Is Lower Limb Movement Enough? Quantifying Overground Arm Swing Kinematics and Coordination to Assess Ageing Decline in Older Adults
This study validates a wearable sensor algorithm for quantifying overground arm swing kinematics and coordination in older adults, revealing that arm-leg coordination is a distinct and sensitive dimension of gait stability that declines with frailty and neurological impairment, thereby offering a scalable method to detect early mobility instability beyond traditional walking speed metrics.