Pearson correlation coefficients between stair ascent and sit-to-stand parameters and a standardized measurement of multi-joint leg-extensor power in men and women aged 20–70 years (N = 91–95).
The spatiotemporal parameters were measured using Steadys system (Neurosoft, Ivanovo, Russia). Seven inertial sensors were fixed on participant’s pelvis, thighs, ankles, and feet. Each sensor recorded
