Ritchie Dean, Keogh Justin W L, Reaburn Peter, Bartlett Jonathan D
Faculty of Health Science and Medicine, Bond University, Gold Coast, QLD, Australia.
Gold Coast Suns FC, Gold Coast, QLD, Australia.
PeerJ. 2020 Oct 13;8:e10031. doi: 10.7717/peerj.10031. eCollection 2020.
Little is known about contrast training and post-activation performance enhancement (PAPE) in a same day concurrent training model. The aim of the current study was to examine the use of two short duration (1-min and 4-min) recovery periods on drop jump performance in same day concurrently trained athletes.
Ten professional Australian Rules footballers (age, 20.6 ± 1.9 yr; height, 184.8 ± 6.9 cm; body mass, 85.8 ± 8.4 kg) completed two resistance training sessions with different PAPE recovery durations; 1-min and 4-min, 1 h following a field-based endurance session. Baseline (pre) drop jumps were compared to post-test maximal drop jumps, performed after each set of three squats (where each participant was encouraged to lift as heavy as they could), to determine changes between 1-min and 4-min recovery periods. Data were analysed by fitting a mixed model (significance was set at ≤ 0.05). Corrected Hedges' g standardised effect sizes ±95% confidence limits were calculated using group means ± SDs.
There were no significant differences between baseline and experimental sets 1, 2 and 3 for reactive strength index (RSI), flight time, and total and relative impulse for either recovery duration. However, for contact time, 1-min baseline was significantly different from set 2 (mean difference; 95% CI [0.029; 0.000-0.057 s], = 0.047, ES; 95% CI [-0.27; -1.20 to 0.66]). For RSI and flight time, 1-min was significantly higher than 4-min (RSI: 0.367; 0.091 to 0.642, = 0.010, ES; 95% CI [0.52; -0.37 to 1.42]; flight time: 0.033; 0.003 to 0.063 s, = 0.027, ES; 95% CI [0.86; -0.06 to 1.78]).
Short recovery periods of 1-min may be a time-efficient form of prescribing strength-power exercise in contrast loading schemes. Longer recovery periods do not appear to benefit immediate, subsequent performance.
在同一天的同时训练模型中，关于对比训练和激活后性能增强（PAPE）的了解甚少。本研究的目的是检验在同一天同时训练的运动员中，两种短时长（1分钟和4分钟）恢复期对纵跳性能的影响。
十名澳大利亚职业橄榄球运动员（年龄，20.6±1.9岁；身高，184.8±6.9厘米；体重，85.8±8.4千克）在一次基于场地的耐力训练后1小时，完成了两次不同PAPE恢复时长的阻力训练；1分钟和4分钟。将基线（训练前）纵跳与每组三次深蹲（鼓励每位参与者尽可能举重物）后的测试后最大纵跳进行比较，以确定1分钟和4分钟恢复期之间的变化。通过拟合混合模型（显著性设定为≤0.05）对数据进行分析。使用组均值±标准差计算校正后的Hedges' g标准化效应大小±95%置信区间。
对于反应力量指数（RSI）、飞行时间以及两种恢复时长的总冲量和相对冲量，基线与实验组1、2和3之间均无显著差异。然而，对于接触时间，1分钟基线与第2组显著不同（平均差异；95%置信区间[0.029；0.000 - 0.057秒]，P = 0.047，效应大小；95%置信区间[-0.27；-1.20至0.66]）。对于RSI和飞行时间，1分钟显著高于4分钟（RSI：0.367；0.091至0.642，P = 0.010，效应大小；95%置信区间[0.52；-0.37至1.42]；飞行时间：0.033；0.003至0.063秒，P = 0.027，效应大小；95%置信区间[0.86；-0.06至1.78]）。
1分钟的短恢复期可能是在对比负荷方案中规定力量 - 功率训练的一种省时形式。较长的恢复期似乎对即时和后续表现没有益处。
