Effect of Recovery Duration on Muscular Power and Blood Lactate During the Bench Press Exercise

Abstract

In order to assess the effect of recovery on power and blood lactate, 10 males performed 10 sets (S1 to S10) of 6 repetitions of bench press at 70% of their maximal strength, with 1 (Prot1), 3 (Prot3) or 5 (Prot5) min rest between sets. From the measurements of force and displacement of the bar, mean power during each repetition (MPR) and set (MPS), were calculated. Blood lactate was evaluated before and immediately after each set. No significant variations in power or blood lactate occurred during prot3 and prot5. From S4 to S10, significantly lower MPS (27% decrease) and higher blood lactate (7.6 +/- 2.0 mmol/l) were demonstrated in prot1 vs prot3 or prot5. In spite of this, MPR in protl were significantly lower for repetitions 4, 5 and 6 only: MPR of repetitions 1, 2 and 3 were similar in the 3 protocols. During prot1 only, power decrease was related to lactate accumulation for all subjects (0.64 < or = r < or = 0.99, p < or = 0.05). These results indicate that although muscular power and blood lactate were both affected by the recovery interval, acidosis was not the direct cause of fatigue during the 1 min rest condition. The concomitant effects of lactate accumulation and insufficient time for a complete resynthesis may have resulted in a diminution of PCr stores, leading to power decrements.

Kinematic,kinetic, and Blood Lactate Profiles of Continuous and Intraset Rest Loading Schemes

“…For example, Abdessemed et al (1999) observed no significant reduction in mean power, during 10 sets of heavy resistance exercise, when 180 or 300 seconds inter-set rest was prescribed. However, significant decreases in power were observed, both between and within sets, when the rest interval was reduced to 60 seconds.…”

“…However, significant decreases in power were observed, both between and within sets, when the rest interval was reduced to 60 seconds. Abdessemed et al (1999) therefore argued that the length of the inter-set rest periods had a significant influence on subsequent muscle performance, and that 180 seconds rest appears sufficient to maintain constant power outputs during exercise with multiple repetitions. While these findings suggest that short rest periods (e.g.…”

“…Instead, longer movement durations, therefore slower movement velocities, were associated with ISRR loading. Therefore it may be speculated that if the development of high power Therefore it may be speculated that ISRV loading may offer a superior training stimulus for the development of muscular power if power training needs to be performed with minimal influence from fatigue (Abdessemed et al, 1999;Baker, 2003;Tesch, Colliander and Kaiser, 1986). …”

Capacidade de repetição da força: efeito das recuperações interséries

“…O mesmo não ocorre quando os intervalos são curtos ou inexistentes. Assim, a velocidade de movimento e a potência muscular caem rapidamente 3,26 , dependendo do nível de treinamento do atleta 4,34,37,[89][90][91] . Em princípio, há dois aspectos que vão condicionar o surgimento da fadiga: o nível de treinamento e as características musculares.…”

“…Por outro lado, possuem menor capacidade de manter a produção de força durante longos períodos 80 . Assim, a seleção do período adequado de descanso entre séries é fundamental para a manutenção da velocidade de execução, da taxa de produção de força e potência máxima durante o treinamento 11,34,83,[91][92][93][94][95] .…”