Fitness Effects of 10-Month Frequent Low-Volume Ball Game Training or Interval Running for 8–10-Year-Old School Children

Table 1

Subjects characteristics in relation to group (SSG, IR, and CON) and gender before (pre) and after (post) the 10-month intervention period. Data are presented as means ± SD, except for Tanner stage distribution (% in 1/2/3, resp.) and percentage of children active in sports clubs (% of all).

		SSG		IR		CON
		Pre	Post	Pre	Post	Pre	Post
Age (yrs)	All; Boys; Girls	9.4 (±0.4); 9.3 (±0.3); 9.4 (±0.4)	10.1 (±0.4); 10.0 (±0.3); 10.1 (±0.4)	9.3 (±0.3); 9.3 (±0.3); 9.4 (±0.3)	10.0 (±0.3); 10.0 (±0.3); 10.0 (±0.3)	9.3 (±0.3); 9.3 (±0.3); 9.4 (±0.3)	10.0 (±0.4); 10.0 (±0.3); 10.0 (±0.4)
Weight (kg)	All; Boys; Girls	31.8 (±4.4); 31.6 (±4.6); 32.1 (±4.2)	34.4 (±4.8); 34.0 (±4.8); 34.9 (±4.9)	32.7 (±5.6); 33.5 (±5.9); 31.6 (±5.2)	35.0 (±6.0); 35.9 (±6.1); 33.7 (±5.7)	32.8 (±6.0); 31.7 (±5.2); 33.5 (±6.7)	35.2 (±6.8); 33.8 (±5.1); 36.3 (±7.8)
Height (cm)	All; Boys; Girls	138.8 (±5.0); 139.3 (±4.7); 138.0 (±5.4)	142.5 (±5.3); 142.9 (±4.9); 142.0 (±5.9)	139.8 (±6.0); 141.1 (±5.6); 138.2 (±6.2)	143.3 (±6.0); 144.4 (±5.6); 141.8 (±6.3)	138.4 (±6.0); 137.9 (±5.3); 138.7 (±6.5)	142.2 (±6.4); 141.5 (±5.3); 142.8 (±7.0)
Tanner stage; (1/2/3) %	All; Boys; Girls	86/14/0; 100/0/0; 68/32/0	81/19/0; 100/0/0; 56/44/0	98/2/0; 100/0/0; 96/4/0	93/7/0; 100/0/0; 83/17/0	84/14/2; 100/0/0; 70/26/3	73/27/0; 100/0/0; 54/46/0
Sports club active (%)	All; Boys; Girls	71%; 74%; 69%	72%; 74%; 70%	67%; 72%; 63%	67%; 72%; 63%	60%; 59%; 61%	61%; 59%; 59%