Table 2.

Medians and 25^th/75^th percentiles (quartiles) of grip strength, standing broad jump, flexibility and VO₂max for quintile three primary schoolchildren in the Nelson Mandela Bay region

			Grip strength (kg)		Standing broad jump (cm)		Flexibility (cm)		CRF (VO2max, mL−1kg−1min−1)
Sex	Age	n	Median	Quartiles	Median	Quartiles	Median	Quartiles	Median	Quartiles
Boys	8	38	11.3	10.1; 13.0	130.0	122.0; 136.0	33.3	30.0; 35.6	51.9	49.7; 56.4
	9	188	12.0	10.2; 13.8	129.0	116.0; 139.0	29.9	29.9; 34.3	50.3	48.0; 54.9
	10	161	13.2	10.8; 14.8	133.5	119.8; 147.0	29.3	25.3; 33.3	51.1	46.3; 53.5
	11	78	14.4	11.8; 16.2	134.0	123.5; 149.0	28.8	25.2; 33.6	52.0	47.0; 54.4
	≥12	19	13.5	10.7; 15.2	135.0	119.5; 148.0	27.6	24.0; 31.9	50.5	46.4; 53.7
Girls	8	66	10.5	9.2; 12.4	114.5	101.3; 125.0	34.9	30.0; 38.4	47.5	47.5; 49.7
	9	244	10.7	10.7; 12.3	117.0	106.0; 128.0	33.1	29.4; 33.1	48.0	45.7; 48.0
	10	113	11.7	9.8; 14.3	122.0	109.0; 133.5	33.8	29.4; 37.1	46.3	43.9; 48.7
	11	35	12.9	10.9; 14.7	121.0	101.8; 132.5	31.5	27.7; 35.6	44.6	42.1; 47.0
	≥12	9	14.3	12.1; 15.3	120.0	110.5; 127.0	31.6	24.4; 34.3	42.9	38.3; 47.9