Does the Repeated-Bout Effect Influence Post-Activation Performance Enhancement in Recreational Runners?

This study examined how a low dose of an eccentric-oriented lunge exercise could induce the repeated-bout effect (RBE) and affect the subsequent post-activation performance enhancement (PAPE) in recreational runners. Twenty male recreational runners (32.1 ± 2.

The Repeated Bout Effect of Multiarticular Exercises on Muscle Damage Markers and Physical Performances: A Systematic Review and Meta-Analyses.

Doma, K, Matoso, B, Protzen, G, Singh, U, and Boullosa, D. The repeated bout effect of multiarticular exercises on muscle damage markers and physical performances: a systematic review and meta-analyses. J Strength Cond Res 37(12): 2504-2515, 2023-This systematic review and meta-analysis compared muscle damage markers and physical performance measures between 2 bouts of multiarticular exercises and determined whether intensity and volume of muscle-damaging exercises affected the outcomes.

Energy demands in high-intensity intermittent taekwondo specific exercises.

Background: Taekwondo is an intermittent Olympic combat sport, which shows an aerobic predominance in matches and high participation of alactic metabolism for actions that determine competitive success. However, there is no information on energetic contribution systems in different high-intensity intermittent exercises for metabolic conditioning with specific movements. The study aimed to measure the physiological demands, mainly the energy expenditure, in taekwondo-specific high-intensity intermittent exercises (HIIE).

Inclusion of sprints during moderate-intensity continuous exercise enhances post-exercise fat oxidation in young males.

To assess the physiological demands of including high-intensity efforts during continuous exercise, we designed a randomized crossover study, in which 12 physically active young males executed 3 different exercises in random order: FATmax - continuous exercise at the highest fat oxidation zone; 2min-130% - FATmax interspersed by a 2-minute bout at 130% of the maximal oxygen uptake associated intensity (iO); and 20s10s-170% - FATmax interspersed by four 20-s bouts at 170%iO interpolated by 10s of passive recovery. We measured oxygen uptake (O), blood lactate concentration ([LAC]), respiratory exchange rate (RER), and fat and carbohydrate (CHO) oxidation. For statistical analyses, repeated-measures ANOVA was applied.

Physiological aspects and energetic contribution in 20s:10s high-intensity interval exercise at different intensities.

Background: One of the most popular high-intensity interval exercises is the called "Tabata Protocol". However, most investigations have limitations in describing the work intensity, and this fact appears to be due to the protocol unfeasibility. Furthermore, the physiological demands and energetic contribution during this kind of exercise remain unclear.

Effects of High-Intensity Interval Training in Combat Sports: A Systematic Review with Meta-Analysis.

Vasconcelos, BB, Protzen, GV, Galliano, LM, Kirk, C, and Del Vecchio, FB. Effects of high-intensity interval training in combat sports: A systematic review with meta-analysis. J Strength Cond Res 34(3): 888-900, 2020-Combat sports (CS) are intermittent by nature and high-intensity interval training (HIIT) has been used as a tool to maintain and improve physical fitness among CS athletes.