Effectiveness of traditional- vs individualized power training based on force-velocity profiling on maximal power, rate of force development, myoelectric activity, and rate of myoelectric activity in older men

Abstract

INTRODUCTION. Muscle power is reported to be a good indicator of functional independency in elderly. Individualized power-training based on force-velocity (F-v) profiling has received increasing attention for optimizing muscle power development. The aim of this study is to investigate effectiveness of traditional- vs individualized power-training based on F-v profiling on maximal power(Pmax), rate of force development (RFD), myoelectric activity (EMG), and rate of myoelectric activity (RMA) in older men. METHOD. Forty-nine older men (67.7±5.3years) underwent physical testing before and after a 10-week training intervention. Subjects were randomized to an individualized (IT) or a balanced power training group (BT) based on F-v profiling. F-v profiles were obtained from Keiser leg-press. RFD, EMG, and RMAdata were collected under an isometric maximum voluntary contraction in leg extension. Pmaxwas measured with incremental loads in leg extension.