Table 3.

Comparison among the indoor athletes with past stress fractures and without any past fractures

	With stress fractures (n=3)	Without any fractures (n=11)	P Value♰
Height, cm	171.7±3.2	172.1±5.2	NS
Body weight, kg	64.9±2.1	64.2±2.7	NS
BMI, kg/m2	22.1±3.7	21.7±1.1	NS
Body fat percentage, %	13.1±2.7	11.7±2.2	NS
Muscle mass, kg	53.5±2.9	53.8±2.9	NS
Bone mass, kg	2.9±0.2	2.9±0.2	NS
Practice time with
sunlight exposure, h/wk	1.3±1.2	0.9±1.0	NS
Time of sleeping, h/dy	6.8±1.3	6.3±0.7	NS
S-25(OH) D, ng/mL	16.5±3.7	15.1±3.3	NS

The values are given as means±standard deviation.

^♰ Stundent’s t-test.

NS: not significant