Weight and Body Composition Changes during the First Three Years of College

Table 1

Freshman, sophomore, and junior year changes in weight, body mass index, and body composition.*

	Freshman year changes	Sophomore year changes	Junior year changes
Weight (kg)
All	1.2 ± 3.1^a	0.5 ± 2.9^a	0.6 ± 3.8^a
Females	0.9 ± 3.1^a	0.1 ± 2.6^a	0.0 ± 3.9^a
Males	1.8 ± 3.0^a	1.2 ± 3.4^a	1.9 ± 3.2^a
Body mass index (kg/m^2)
All	0.4 ± 1.1^a	0.1 ± 1.0^a	0.2 ± 1.3^a
Females	0.3 ± 1.1^a	0.0 ± 1.0^a	0.0 ± 1.4^a
Males	0.5 ± 1.0^a	0.4 ± 1.1^a	0.6 ± 1.0^a
Body fat (percentage)
All	1.6 ± 2.5^a	−0.1 ± 2.5^b	0.8 ± 2.9^a,c
Females	1.3 ± 2.7^a	−0.3 ± 2.0^b	0.5 ± 3.2^a,b
Males	2.2 ± 1.9^a	0.5 ± 3.3^b	1.4 ± 2.3^a,b
Fat free mass (kg)
All	−0.2 ± 2.1^a	0.4 ± 1.7^a	−0.2 ± 2.0^a
Females	−0.2 ± 2.1^a,b	0.3 ± 1.5^a	−0.4 ± 1.8^b
Males	−0.1 ± 2.2^a	0.7 ± 2.1^a	0.3 ± 2.5^a
Fat mass (kg)
All	1.4 ± 2.2^a	0.0 ± 2.5^b	0.7 ± 3.0^a,b
Females	1.1 ± 2.3^a	−0.2 ± 1.9^b	0.3 ± 3.3^a,b
Males	2.0 ± 2.0^a	0.6 ± 3.4^a	1.5 ± 2.3^a
Waist (cm)
All	−0.53 ± 3.12^a	0.46 ± 2.54^a	0.20 ± 3.35^a
Females	−0.30 ± 2.46^a	0.15 ± 2.29^a	0.05 ± 2.77^a
Males	−1.04 ± 4.27^a	1.17 ± 2.87^a	0.76 ± 4.42^a

* 𝑛=37 males and 𝑛=77 females.
^a,b,cValues in rows with different letters are significantly different 𝑃<0.05.