Department of Sports and Exercise Sciences, University of Chester, Chester, UK.
J Sports Sci. 2011 Aug;29(11):1223-30. doi: 10.1080/02640414.2011.587445. Epub 2011 Jul 21.
Twelve elite players from an English Super League club consented to participate in the present study using portable global positioning system (GPS) devices to assess position-specific demands. Distances covered at low-intensity running, moderate-intensity running, high-intensity running, very high-intensity running, and total distance were significantly (P < 0.05) lower in forwards compared with outside backs and adjustables. Metres per minute was higher in adjustables and forwards, owing to higher values for relative distance in medium-intensity running and a rise in high-intensity running from previous absolute values. Sprint distance, sprint frequency, and peak speed were higher in outside backs than both adjustables and forwards. A moderate, significant correlation (r = 0.62, P = 0.001) was apparent between session ratings of perceived exertion and summated heart rate. Results support the requirement for position-specific conditioning and provide preliminary evidence for the use of session ratings of perceived exertion as a measure of match load.
十二名来自英超联赛的精英球员同意使用便携式全球定位系统 (GPS) 设备参与本研究，以评估特定位置的需求。与外后卫和可调整球员相比，前锋球员的低强度跑动、中强度跑动、高强度跑动、极高强度跑动和总跑动距离明显（P<0.05）较低。由于中强度跑动的相对距离较高，高强度跑动从前一绝对数值上升，调整球员和前锋球员的米/分钟更高。外后卫的冲刺距离、冲刺频率和最高速度都高于可调整球员和前锋球员。运动中感知的努力和总和心率之间存在中度、显著的相关性（r=0.62，P=0.001）。结果支持特定位置调节的要求，并为使用运动中感知的努力作为比赛负荷的衡量标准提供了初步证据。
