Tzatzakis Theofanis, Papanikolaou Konstantinos, Draganidis Dimitrios, Tsimeas Panagiotis, Kritikos Savvas, Poulios Athanasios, Laschou Vasiliki C, Deli Chariklia K, Chatzinikolaou Athanasios, Batrakoulis Alexios, Basdekis Georgios, Mohr Magni, Krustrup Peter, Jamurtas Athanasios Z, Fatouros Ioannis G
Int J Sports Physiol Perform. 2020 Mar 1;15(3):395-408. doi: 10.1123/ijspp.2018-0984.
To determine the recovery kinetics of performance, muscle damage, and neuromuscular fatigue following 2 speed-endurance production training (SEPT) protocols in soccer.
Ten well-trained, male soccer athletes randomly completed 3 trials: work-to-rest ratio (SEPT) 1:5, SEPT/1:8, and a control trial. Training load during SEPT was monitored using global positioning system and heart-rate monitors. Performance (isokinetic strength of knee extensors and flexors, speed, and countermovement jump) and muscle damage (delayed-onset muscle soreness [DOMS] and creatine kinase) were evaluated at baseline and at 0, 24, 48 and 72 h posttraining. Maximal voluntary contraction (fatigue index) of knee extensors and flexors was additionally assessed at 1, 2, and 3 h posttraining.
Fatigue increased (P < .05) in SEPT/1:5 (∼4-30%) for 3 h and in SEPT/1:8 (∼8-17%) for 2 h. Strength performance declined (P < .05) in both SEPT trials (∼5-20%) for 48 h. Speed decreased (∼4-18%; P < .05) for 72 h in SEPT/1:5 and for 48 h in SEPT/1:8. Countermovement-jump performance decreased (∼7-12%; P < .05) in both SEPT trials for 24 h. DOMS increased (P < .05) in SEPT/1:5 (∼2-fold) for 72 and in SEPT/1:8 (∼1- to 2-fold) for 48 h. Creatine kinase increased (∼1- to 2-fold, P < .05) in both SEPT trials for 72 h.
SEPT induces short-term neuromuscular fatigue; provokes a prolonged deterioration of strength (48 h), speed (72 h), and jump performance (24 h); and is associated with a prolonged (72-h) rise of DOMS and creatine kinase. Time for recovery is reduced when longer work-to-rest ratios are applied. Fitness status may affect quality of SEPT and recovery kinetics.
确定足球运动中两种速度耐力训练（SEPT）方案后运动表现、肌肉损伤和神经肌肉疲劳的恢复动力学。
10名训练有素的男性足球运动员随机完成3次试验：工作与休息比（SEPT）1:5、SEPT/1:8以及一次对照试验。使用全球定位系统和心率监测器监测SEPT期间的训练负荷。在基线以及训练后0、24、48和72小时评估运动表现（膝伸肌和屈肌的等速肌力、速度和反向纵跳）和肌肉损伤（延迟性肌肉酸痛[DOMS]和肌酸激酶）。在训练后1、2和3小时额外评估膝伸肌和屈肌的最大自主收缩（疲劳指数）。
SEPT/1:5组在3小时内疲劳增加（P <.05）（约4 - 30%），SEPT/1:8组在2小时内疲劳增加（约8 - 17%）。在两个SEPT试验中，力量表现均在48小时内下降（P <.05）（约5 - 20%）。SEPT/1:5组速度在72小时内下降（约4 - 18%；P <.05），SEPT/1:8组在48小时内下降。在两个SEPT试验中，反向纵跳表现均在24小时内下降（约7 - 12%；P <.05）。SEPT/1:5组DOMS在72小时内增加（P <.05）（约2倍），SEPT/1:8组在48小时内增加（约1至2倍）。在两个SEPT试验中，肌酸激酶在72小时内均增加（约1至2倍，P <.05）。
SEPT会引起短期神经肌肉疲劳；导致力量（48小时）、速度（72小时）和跳跃表现（24小时）长期下降；并与DOMS和肌酸激酶的长期（72小时）升高有关。采用更长的工作与休息比时，恢复时间会缩短。体能状况可能会影响SEPT的质量和恢复动力学。
