Wenos D L, Wallace J P, Surburg P R, Morris H H
Department of Kinesiology, James Madison University, VA 22807, USA.
Int J Sports Med. 1996 Apr;17(3):193-8. doi: 10.1055/s-2007-972831.
The purposes of this study were to assess if women 60 to 75 years of age perceived a series of exercise intensities differently from selected intensities in that series and to determine if a particular intensity was perceived more reliably. Twenty-four women (65 +/- 3.8 yr) completed a walking VO2max treadmill test. Subjects were either assigned to a variable, randomly ordered exercise protocol (GP1) or to one of three constant exercise protocols (Gps2-4). Each subject performed relative exercise intensities of 30, 50, and 70% of peak VO2 for three 5 min work bouts over 3 test days. Differences in RPE (p < 0.05) were found between each intensity and between the same intensities from both protocols. Women in GP1 rated exercise higher than women who exercised at a constant exercise intensity (p < 0.05). Intraclass correlation coefficients indicated that the exercise intensity of 50% of maximum was more reliable regardless of the protocol (Gp1: R = 0.97, Gp3: r = 0.94). When the RPE-HR correlation coefficients were transformed into a log scale, neither protocol had a stronger association (p > 0.05) between RPE-HR. It was concluded that older women should be given a range of exercise intensities that include the 50% relative exercise intensity as a perceptual marker in order to reach a reliable rate of exertion.
本研究的目的是评估60至75岁的女性对一系列运动强度的感知是否与该系列中选定的强度不同，并确定特定强度的感知是否更可靠。24名女性（65±3.8岁）完成了一项步行VO2max跑步机测试。受试者要么被分配到一个可变的、随机排序的运动方案（GP1），要么被分配到三个恒定运动方案（Gps2 - 4）中的一个。在3个测试日中，每个受试者在3次5分钟的运动回合中，进行相当于峰值VO2的30%、50%和70%的相对运动强度。在各强度之间以及两种方案中相同强度之间发现了RPE差异（p < 0.05）。GP1组的女性对运动的评分高于以恒定运动强度锻炼的女性（p < 0.05）。组内相关系数表明，无论采用何种方案，最大强度50%的运动强度更可靠（GP1：R = 0.97，Gp3：r = 0.94）。当将RPE - HR相关系数转换为对数尺度时，两种方案在RPE - HR之间均无更强关联（p > 0.05）。得出的结论是应给老年女性提供一系列运动强度，其中包括将50%的相对运动强度作为感知指标以达到可靠的运动强度。
