Robertson R, Goss F, Michael T, Moyna N, Gordon P, Visich P, Kang J, Angelopoulos T, Dasilva S, Metz K
Department of Health and Physical Education, University of Pittsburgh, PA 15261, USA.
Med Sci Sports Exerc. 1995 May;27(5):760-4.
This investigation determined metabolic (i.e., kcal.min-1) responses and ratings of perceived exertion (RPE) for varying pedal-crank rates (PCR) and power outputs (PO) during arm and leg exercise in thermoneutral air (TA) and water (TW). Nine males (age 28.2 yr; leg cycle VO2peak 3.4 l.min-1) undertook the 24 exercise trials. During the TW trials kcal.min-1 were less (P < 0.05): at 50 W for 40 (X +/- SE; 10.9 +/- 0.8) than 50 (8.2 +/- 0.2), 60 (8.2 +/- 0.6), or 70 (7.4 +/- 0.3) rev.min-1 and at 100 W for 40 (15.2 +/- 0.7), 50 (14.0 +/- 1.1), and 60 (13.8 +/- 0.7) than 70 (12.1 +/- 0.5) rev.min-1. All other comparisons of kcal.min-1 between PCR at the three PO were not significant. During the TA trials kcal.min-1 were less (P < 0.05): at 50 W for 40 (11.4 +/- 0.3) than 60 (9.7 +/- 0.4) and 70 (9.1 +/- 0.4) rev.min-1 and for 50 (11.0 +/- 0.5) than 70 rev.min-1. During the TW trials: RPE-Arms and RPE-Overall at 50 W were lower (P < 0.05) for 40 (8.1 +/- 0.5; 8.3 +/- 0.4) than 60 (9.6 +/- 0.5; 9.8 +/- 0.6) and 70 (9.3 +/- 0.5; 9.9 +/- 0.7) rev.min-1, RPE-Legs at 50 W was lower (P < 0.05) for 40 (8.3 +/- 0.4) than 70 (9.9 +/- 0.7) rev.min-1. All other comparisons of RPE between PCR at the three PO were not significant.
本研究测定了在热中性空气(TA)和水中(TW)进行手臂和腿部运动时,不同踏板曲柄速率(PCR)和功率输出(PO)下的代谢(即千卡·分钟⁻¹)反应和主观用力程度(RPE)评级。九名男性(年龄28.2岁;腿部自行车运动VO₂峰值3.4升·分钟⁻¹)进行了24次运动试验。在TW试验中,千卡·分钟⁻¹较低(P<0.05):在50瓦时,40转·分钟⁻¹(X±SE;10.9±0.8)时低于50(8.2±0.2)、60(8.2±0.6)或70(7.4±0.3)转·分钟⁻¹;在100瓦时,40(15.2±0.7)、50(14.0±1.1)和60(13.8±0.7)转·分钟⁻¹时低于70(12.1±0.5)转·分钟⁻¹。在三个PO下,PCR之间的所有其他千卡·分钟⁻¹比较均无显著差异。在TA试验中,千卡·分钟⁻¹较低(P<0.05):在50瓦时,40(11.4±0.3)转·分钟⁻¹低于60(9.7±0.4)和70(9.1±0.4)转·分钟⁻¹,50(11.0±0.5)转·分钟⁻¹低于70转·分钟⁻¹。在TW试验中:50瓦时,40转·分钟⁻¹(8.1±0.5;8.3±0.4)时的RPE-手臂和RPE-总体低于60(9.6±0.5;9.8±0.6)和70(9.3±0.5;9.9±0.7)转·分钟⁻¹(P<0.05),50瓦时,40转·分钟⁻¹(8.3±0.4)时的RPE-腿部低于70(9.9±0.7)转·分钟⁻¹(P<0.05)。在三个PO下,PCR之间的所有其他RPE比较均无显著差异。