Aerobic performance and body composition changes during military service

Figures & data

Table I. Cooper test results (in metres) of the study subjects by BMI measured at the beginning and end of military service for those who served six months and all (6–12 months’ service).

	n	Beginning mean (SD)	End mean (SD)	Change mean (SD)	% change	Paired t-test p-value
Six months
All	543	2410.0 (346.4)	2628.7 (302.2)	218.7 (271.0)	9.1	< 0.0001
Underweight	23	2592.2 (317.9)	2700.4 (253.2)	108.3 (268.0)	4.2	0.0656
Normal	343	2508.6 (316.8)	2707.4 (283.7)	198.7 (279.6)	7.9	< 0.0001
Overweight	131	2272.4 (283.6)	2540.8 (255.5)	268.4 (260.7)	11.8	< 0.0001
Obese	46	1975.9 (249.4)	2256.5 (233.9)	280.7 (195.7)	14.2	< 0.0001
All (6–12 months)
All	945	2501.9 (364.6)	2670.9 (301.9)	169.0 (259.3)	6.8	< 0.0001
Underweight	35	2635.7 (281.8)	2728.9 (244.7)	93.1 (231.5)	3.5	0.0230
Normal	624	2602.4 (335.1)	2745.1 (281.4)	142.7 (263.3)	5.5	< 0.0001
Overweight	218	2346.5 (300.6)	2570.4 (259.6)	223.9 (252.7)	9.5	< 0.0001
Obese	68	2009.0 (260.5)	2282.4 (245.5)	273.3 (197.1)	13.6	< 0.0001

Note: n = number of statistics.

Figure 1. Changes in the Cooper test result, anthropometry, and body composition by BMI during military service (six months of service).

Figure 2. Changes in the Cooper test result, anthropometry, and body composition by BMI during military service (entire study population).