Table 2: Weight, body mass index, and body composition changes between the college freshman and junior years.a

Beginning of freshman yearEnd of junior yearChange

Weight (kg)
 All 65.0 ± 14.767.1 ± 16.2 2.1 ± 4.8b
 Females 59.8 ± 12.161.1 ± 13.7 1.3 ± 4.5b
 Males75.1 ± 14.078.7 ± 14.43.6 ± 4.8b
Body mass index (kg/m2)
 All22.6 ± 4.223.3 ± 4.70.7 ± 1.6b
 Females22.1 ± 4.022.5 ± 4.50.5 ± 1.6b
 Males23.7 ± 4.624.8 ± 4.51.1 ± 1.4b
Body fat (percentage)
 All18.3 ± 7.521.0 ± 7.42.7 ± 3.3b
 Females22.0 ± 5.324.2 ± 5.72.2 ± 3.3b
 Males11.0 ± 5.6 14.7 ± 6.03.7 ± 2.9b
Fat free mass (kg)
 All52.8 ± 11.652.5 ± 11.80.3 ± 2.6
 Females46.1 ± 6.045.6 ± 5.9−0.5 ± 2.2b
 Males66.2 ± 7.966.3 ± 7.80.1 ± 3.2
Fat mass (kg)
 All12.0 ± 8.114.3 ± 9.1 2.3 ± 3.5b
 Females13.6 ± 7.515.4 ± 9.1 1.8 ± 3.5b
 Males8.9 ± 8.612.2 ± 9.0−3.3 ± 3.0b
Waist (cm)
 All74.60 ± 8.8174.88 ± 9.370.28 ± 3.25
 Females71.22 ± 6.6871.27 ± 6.680.05 ± 2.77
 Males81.69 ± 8.5982.45 ± 9.730.76 ± 4.06

a males, females.
bStatistically significant (<0.05) change from freshman year.