School of Sports Science, Exercise and Health, The University of Western Australia, Australia.
J Sci Med Sport. 2011 Sep;14(5):441-6. doi: 10.1016/j.jsams.2011.03.008. Epub 2011 Apr 27.
The aim was to compare the effect of a simulated team sport activity circuit (reflective of the activity demands of Australian football) either with or without body 'contact' on muscle soreness, damage, and performance when the circuit was repeated 48 h later. Eleven male, team-sport athletes completed a 'non-contact' (NCON) and a 'contact' (CON) version of the team sport activity circuit in a crossover design with at least 1 week between trials. The effect of CON and NCON on repeated 15m sprint and vertical jump performance was assessed by completing the same version of the circuit 48 h after the initial trial. The effect on perceived soreness and blood markers of muscle damage and inflammation was also determined. Subsequent performance was affected to a greater extent by CON, with both best and mean sprint times significantly slower 48h following CON (p<0.05), while performance was maintained after NCON. Best and mean vertical jump performance was significantly impaired following CON (p<0.05), while only best vertical jump was affected by NCON (p<0.05). Perceived soreness and pressure sensitivity were elevated following both NCON and CON (p<0.001); however, the increase in soreness was greater with CON (p=0.012). Both CON and NCON resulted in elevated serum creatine kinase, myoglobin and lactate dehydrogenase, while c-reactive protein increased following CON but not NCON. In conclusion, Greater perceived soreness and decrements in performance of the simulated team sport activity circuit when repeated 48 h later were observed following CON.
目的是比较模拟团队运动活动循环（反映澳大利亚足球的活动需求）有无身体“接触”对肌肉酸痛、损伤和性能的影响，当循环在 48 小时后重复进行时。11 名男性团队运动运动员在交叉设计中完成了无接触（NCON）和有接触（CON）版本的团队运动活动循环，两次试验之间至少间隔 1 周。通过在初始试验后 48 小时完成相同版本的循环，评估 CON 和 NCON 对重复 15m 冲刺和垂直跳跃性能的影响。还确定了 CON 和 NCON 对肌肉损伤和炎症的血液标志物的影响。随后的表现受到 CON 的更大影响，CON 后最佳和平均冲刺时间明显较慢（p<0.05），而 NCON 后表现保持不变。CON 后最佳和平均垂直跳跃性能明显受损（p<0.05），而 NCON 仅影响最佳垂直跳跃（p<0.05）。CON 和 NCON 后，感知酸痛和压力敏感度均升高（p<0.001）；然而，CON 引起的酸痛增加更大（p=0.012）。CON 和 NCON 均导致血清肌酸激酶、肌红蛋白和乳酸脱氢酶升高，而 C 反应蛋白仅在 CON 后升高而在 NCON 后不升高。结论，CON 后 48 小时重复进行模拟团队运动活动循环时，感知酸痛和性能下降更为明显。
