Effects of high-intensity interval training combined with traditional strength or power training on functionality and physical fitness in healthy older men: A randomized controlled trial

Concurrent training (CT) is an efficient strategy to improve neuromuscular function and cardiorespiratory fitness in older adults, which are factors of pivotal importance for the maintenance functional capacity with aging. However, there a lack evidence about effectiveness power (PT) as alternative traditional strength (TST) during CT. Thus, aim present study was examine effect 16 weeks (twice weekly) TST combined high intensity interval (TST + HIIT) vs. PT HIIT (PT on performance, body composition men. Thirty five men (65.8 ± 3.9 years) were randomly allocated into two groups: (n = 18), 17). performed resistance at intensities ranging from 65% 80% 1RM slow controlled speed (≅ 2 s each concentric phase), whereas trained 40% 60% maximal intentional speed. Both groups 75 90% VO2peak. Participants tests (sit-to-stand, timed-up-and-go, stair climbing); cardiopulmonary exercise testing (maximal cycling output: Wmax, peak oxygen uptake: VO2peak, economy), well assessment (DXA) before, post 8 training. The improved similarly (P < 0.05) all outcomes, economy, VO2peak 0.05). These findings suggest that based CT programs involving equally effective improving functionality, healthy