. Author manuscript; available in PMC: 2023 May 1.

Published in final edited form as: J Strength Cond Res. 2020 May 25;36(5):1271–1276. doi: 10.1519/JSC.0000000000003646

Table 1.

Subjects’ Characteristics by Sex

Characteristics	Males (N=176) Mean (SD)	Females (N=204) Mean (SD)
Age at scan (years)	17.6 (0.4)	17.5 (0.4)
Maturity (years from PHV age)	3.9 (0.9)^**	5.7 (0.7)
Height (cm)	79.9 (18.6)^**	66.6 (16.2)
BSI, compression, 4% tibia site (mg²/mm⁴)	178.9 (7.8)^**	165.8 (6.7)
pSSI, 66% tibia site (mm³)	134.1 (31.5)^**	98.5 (23.3)
Cortical content, 66% site (mg)	3047.0 (660.5)^**	2215.6 (488.3)
PAQ-score (1 to 5 scale)	2.6 (0.9)^*	2.4 (0.7)

p-value < 0.05

^**

p-value < 0.01 from t-test for comparison of male and female subjects

Note: Standard deviation (SD); Peak height velocity (PHV); Bone Strength Index (BSI); polar Strength-Strain Index (pSSI); Physical Activity Questionnaire (PAQ).