Performance Enhancement and Talent Identification Section, ASPIRE, Academy for Sports Excellence, Doha, Qatar.
J Strength Cond Res. 2010 Jan;24(1):165-70. doi: 10.1519/JSC.0b013e3181a5bc6d.
To examine the relationship between metabolic (i.e., blood lactate concentration) and perceptual (ratings of perceived exertion, RPE) responses and their association with variables describing the characteristics of the singles tennis match play. Eight trained and internationally ranked (Association of Tennis Professionals rankings) male tennis players were studied during singles matches (best of 3 sets) played on an outdoor clay court surface during a professional invitational tournament. Ratings of perceived exertion and blood lactate concentrations were determined at selected change overs during the game. The variables describing the characteristics of the matches, (a) duration of rallies (DR), (b) rest time, (c) effective playing time, and (d) strokes per rally (SR), were determined from video recordings. Significant correlations (r = 0.57-0.48; p < 0.01) were found for RPE-blood lactate responses during the games. Both RPE and blood lactate concentration values were significantly correlated with SR and DR (r = 0.80-0.61; p < 0.001) in service games. Average RPE was significantly higher (p < 0.05) following service games (13.5 +/- 1.9; n = 24) than following receiving games (12.2 +/- 2.0; n = 22). Mean blood lactate concentrations were significantly higher (p < 0.05) following service games (4.4 +/- 2.4 mmol.L; n = 24) than following receiving games (3.0 +/- 1.3 mmol.L; n = 22). These results indicate that monitoring RPE may be a useful technique for regulating on-court tennis training intensity. Moreover, blood lactate may mediate the relation between RPE and tennis match play intensity.
为了研究代谢（即血乳酸浓度）和知觉（感觉用力程度评分，RPE）反应之间的关系及其与描述单打网球比赛特征的变量之间的关系。在一项职业邀请赛上，对 8 名经过训练的、国际排名靠前的（职业网球联合会排名）男性网球运动员在室外红土场地上进行的单打比赛（最佳 3 盘）进行了研究。在比赛过程中，在选定的换边时测定了感觉用力程度评分和血乳酸浓度。从视频记录中确定了描述比赛特征的变量：（a）回合持续时间（DR），（b）休息时间，（c）有效比赛时间，和（d）每回合击球数（SR）。在比赛中，RPE 与血乳酸反应之间存在显著的相关性（r = 0.57-0.48；p < 0.01）。在发球局中，RPE 和血乳酸浓度值与 SR 和 DR 呈显著相关（r = 0.80-0.61；p < 0.001）。发球局中的平均 RPE 明显更高（p < 0.05）（13.5 +/- 1.9；n = 24），而接发球局中的平均 RPE 则较低（12.2 +/- 2.0；n = 22）。发球局后的血乳酸浓度明显更高（p < 0.05）（4.4 +/- 2.4 mmol/L；n = 24），而接发球局后的血乳酸浓度则较低（3.0 +/- 1.3 mmol/L；n = 22）。这些结果表明，监测 RPE 可能是调节场上网球训练强度的有用技术。此外，血乳酸可能介导 RPE 与网球比赛强度之间的关系。
