Department of Biomechanics and Performance Analysis, Canadian Sport Institute, Victoria, British Columbia, Canada.
Exercise Science, Physical and Health Education, University of Victoria, Victoria, British Columbia, Canada.
J Strength Cond Res. 2023 Feb 1;37(2):383-387. doi: 10.1519/JSC.0000000000004262. Epub 2022 Jul 1.
Epp-Stobbe, A, Tsai, M-C, Morris, C, and Klimstra, M. The influence of physical contact on athlete load in international female rugby sevens. J Strength Cond Res 37(2): 383-387, 2023-Although self-reported rate of perceived exertion (RPE) is a simple and popular metric for monitoring player loads, this holistic measure may not adequately represent the distinct contributing factors to athlete loading in team sports, such as contact load. The purpose of this investigation is to determine the relationship between the number of contacts experienced and playing time on RPE in elite women's rugby sevens athletes during competition. Additionally, we examine the contribution of the number of contacts and playing time to RPE. The data collected included RPE, playing time, and number of contacts from 1 team participating in 74 international women's sevens matches. The relationship was modeled using multiple linear regression. Results, including the coefficients for the number of contacts and playing time, were significant (p < 0.001), and R2adjusted was 0.3063. Because contacts are accounted for within the measure of RPE in the proposed model, this further supports the value of RPE as a global measure of athlete experience. However, this study has found a different relationship between RPE and playing time dependent on the number of contacts, such that the influence of playing time on RPE decreases as the number of contacts increase. Ultimately, this may mean that the weighting of individual salient factors affecting player loads, such as the number of contacts or playing time, depend on the levels of all known and potentially unknown factors experienced and may limit the use of RPE when contextualizing player load across athletes. Taken together, the findings suggest that the number of contacts, playing time, and RPE should be considered when monitoring athlete loads while further substantiating the need for more, and higher resolution, measures to better quantify competition loads in contact team sports.
埃普-斯托布、蔡美云、莫里斯和克里姆斯特在《国际女子七人制橄榄球中身体接触对运动员负荷的影响》一文中指出：尽管自我报告的感觉用力程度（RPE）是监测运动员负荷的一种简单而流行的指标，但这种整体测量方法可能无法充分代表团队运动中运动员负荷的独特影响因素，例如接触负荷。本研究旨在确定接触次数与 RPE 在精英女子七人制橄榄球运动员比赛中的比赛时间之间的关系。此外，我们还检查了接触次数和比赛时间对 RPE 的贡献。收集的数据包括 1 支参赛队在 74 场国际女子七人制比赛中的 RPE、比赛时间和接触次数。使用多元线性回归对关系进行建模。结果，包括接触次数和比赛时间的系数，均具有统计学意义（p < 0.001），调整后的 R2 为 0.3063。由于接触次数在建议模型中的 RPE 测量中得到了体现，这进一步支持了 RPE 作为运动员体验的整体测量指标的价值。然而，本研究发现 RPE 与比赛时间之间的关系因接触次数而异，即随着接触次数的增加，比赛时间对 RPE 的影响减小。最终，这可能意味着影响运动员负荷的各个显著因素的权重，例如接触次数或比赛时间，取决于已知和潜在未知因素的水平，并且可能会限制 RPE 在运动员之间进行球员负荷的上下文化时的使用。总之，这些发现表明，在监测运动员负荷时，应考虑接触次数、比赛时间和 RPE，同时进一步证明需要更多、更高分辨率的措施来更好地量化接触团队运动中的比赛负荷。
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