. Author manuscript; available in PMC: 2015 May 1.

Published in final edited form as: Med Sci Sports Exerc. 2014 May;46(5):877–886. doi: 10.1249/MSS.0000000000000180

Table 1.

Summary Statistics of Anthropometrics, Body Composition, and CPET Variables

		Age (years-old)
		8–10	11–13	14–15	16–18
Number of Subject	Female	27	17	22	16
Number of Subject	Male	30	19	18	20

Height (cm)	Female	137.4 ± 8.7	154.1 ± 9.5	163.3 ± 7.5	165.8 ± 5.9
Height (cm)	Male	138.9 ± 6.6	155.5 ± 12.1	170.6 ± 10.5	175.7 ± 6.3

Weight (kg)	Female	31.8 ± 6.3	45.0 ± 10.2	56.9 ± 10.4	59.3 ± 7.4
Weight (kg)	Male	33.4 ± 5.9	45.8 ± 11.2	61.8 ± 12.9	68.8 ± 11.2

BMI (kg/m²)	Female	16.7 ± 1.9	18.8 ± 3.1	21.3 ± 3.2	21.6 ± 2.5
BMI (kg/m²)	Male	17.2 ± 2.1	18.7 ± 2.7	21.0 ± 2.6	22.2 ± 2.5

BMI %tile	Female	45.1 ± 27.2	50.0 ± 34.6	57.7 ± 30.3	54.1 ± 25.2
BMI %tile	Male	53.0 ± 28.4	51.7 ± 31.1	59.6 ± 25.2	55.1 ± 25.1

LBM (kg)	Female	23.9 ± 4.4	33.7 ± 7.1	42.5 ± 6.7	43.5 ± 5.2
LBM (kg)	Male	25.6 ± 3.5	36.1 ± 9.5	51.2 ± 9.8	59.0 ± 8.6

Fat mass (kg)	Female	8.1 ± 2.7	11.5 ± 5.0	14.6 ± 6.0	15.7 ± 4.5
Fat mass (kg)	Male	7.8 ± 3.2	9.9 ± 5.3	10.9 ± 5.4	9.9 ± 4.0

% Fat	Female	25.1 ± 4.9	24.9 ± 7.0	24.8 ± 6.9	26.3 ± 5.6
% Fat	Male	22.6 ± 5.6	21.2 ± 8.6	17.0 ± 6.0	14.1 ± 3.8

Exercise Time (minute)	Female	9.1 ± 1.2	9.2 ± 1.7	9.6 ± 1.4	9.6 ± 1.6
Exercise Time (minute)	Male	9.6 ± 1.7	10.9 ± 2.2	10.7 ± 1.6	11.5 ± 1.8

Ramp Level (watt/min)	Female	10.5 ± 1.4	14.7 ± 3.1	18.9 ± 3.8	19.3 ± 4.1
Ramp Level (watt/min)	Male	11.0 ± 1.9	14.8 ± 3.9	21.1 ± 5.1	23.4 ± 3.6

Max WR (watt)	Female	93.9 ± 15.8	131.8 ± 35.4	177.7 ± 36.3	181.9 ± 42.9
Max WR (watt)	Male	101.7 ± 16.5	155.9 ± 40.3	220.1 ± 50.8	266.9 ± 54.6

Peak HR (beat/min)	Female	188.8 ± 10.6	191.3 ± 11.9	186.9 ± 8.3	186.4 ± 10.4
Peak HR (beat/min)	Male	187.7 ± 8.5	189.1 ± 7.8	187.4 ± 11.0	194.0 ± 10.0

Peak $\overset{•}{V} O_{2}$ (L/min)	Female	1.1 ± 0.2	1.6 ± 0.6	2.1 ± 0.5	2.1 ± 0.5
Peak $\overset{•}{V} O_{2}$ (L/min)	Male	1.4 ± 0.3	2.0 ± 0.6	2.8 ± 0.7	3.2 ± 0.9

Peak $\overset{•}{V} C O_{2}$ (L/min)	Female	1.3 ± 0.3	1.9 ± 0.7	2.4 ± 0.6	2.5 ± 0.7
Peak $\overset{•}{V} C O_{2}$ (L/min)	Male	1.5 ± 0.3	2.3 ± 0.7	3.1 ± 0.8	3.9 ± 1.2

Peak ${\overset{•}{V}}_{E}$ (L/min)	Female	47.6 ± 7.8	63.3 ± 15.3	73.5 ± 16.6	75.0 ± 17.0
Peak ${\overset{•}{V}}_{E}$ (L/min)	Male	53.5 ± 8.2	72.7 ± 17.0	94.3 ± 29.6	111.6 ± 32.3

Peak RER	Female	1.12 ± 0.05	1.13 ± 0.05	1.16 ± 0.07	1.18 ± 0.07
Peak RER	Male	1.09 ± 0.06	1.14 ± 0.07	1.14 ± 0.08	1.20 ± 0.05

Values are mean ± SD.