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. 2011 Jul 14;8:38. doi: 10.1186/1743-0003-8-38

Table 2.

Cardiorespiratory variables, energy expenditure, and perceived exertion of the 15 minutes Wii game play

Tennis (n = 7) Boxing (n = 8) P
VO2 (ml/min) 891.6 (249.1) 980.1 (319.2) 0.345
VO2 (ml/kg/min) 11.0 (3.9) 11.9 (3.3) 0.345
VO2 (ml/FFM/min) 17.0 (5.2) 18.1 (4.4) 0.345
HR (beats/min) 96.8 (14.7) 106.1 (20.0) 0.225
VE (L/min) 25.7 (4.7) 33.2 (10.3) 0.225
RER 0.91 (0.06) 0.95 (0.07) 0.500
Energy expenditure (METs) 3.7 (0.8) 4.1 (0.7) 0.500
Perceived exertion 4.1 (1.2) 5.3 (2.7) 0.034

Values are mean ± standard deviation

VO2 = oxygen uptake

FFM = fat free mass

HR = heart rate

VE = pulmonary ventilation

RER = respiratory exchange rate

METs = metabolic equivalents