BMC Sports Science, Medicine and Rehabilitation
Trainability of repetitions-in-reserve estimation in younger and older adults: a parallel-group repeated-measures study
Abstract Background Effort-based resistance training (RT) approaches, such as repetitions (reps) in reserve (RIR), aim to enhance RT individualization, which is of particular relevance for older adults. However, evidence regarding the accuracy of RIR estimation and its trainability in this population remains limited. This study aimed to (I) compare RIR estimation accuracy between younger and older adults, and (II) determine whether six training sessions improve estimation accuracy in both groups. Methods The study …