Influence of Cardiorespiratory Fitness on PPARG mRNA Expression Using Monozygotic Twin Case Control

Table 2

Anthropometric characteristics of discordant and concordant MZ twins pairs for VO₂max.

Variables	Discordant pairs ()^†		Concordant pairs ()^†
	D-high	D-low	C-high	C-low
Age (years)	13.9 ± 2.2		14.2 ± 2.1		—	—
(♂/♀)	18 (8/10)		58 (20/38)		—	—
VO2max	45.9 ± 10.0	32.4 ± 10.6^a	42.4 ± 9.2^b	38.8 ± 9.8	3.690	0.016
Body mass (kg)	46.4 ± 9.0	46.2 ± 8.7	52.1 ± 14.1	53.7 ± 13.6	1.291	0.284
Height (cm)	155.7 ± 11.5	156.4 ± 11.0	158.8 ± 10.6	159.1 ± 10.6	0.335	0.800
BMI (kg/m^2)	18.9 ± 1.4	18.7 ± 1.5	20.4 ± 4.2	21.0 ± 4.4	1.290	0.284
Waist (cm)	66.5 ± 4.4	65.7 ± 5.0	70.6 ± 11.7	71.8 ± 10.9	1.218	0.310
TR + SB (mm)	18.9 ± 6.2	19.4 ± 6.1	28.2 ± 16.6	29.7 ± 17.0	1.924	0.124

VO₂max: maximal oxygen uptake (mL·kg⁻¹·min⁻¹); BMI: body mass index; TR + SB: sum of skinfold triceps and subscapular. D-high and D-low: discordant pairs; C-high and C-low: concordant pairs. ^†VO₂max intrapair difference ≥10 mL·kg⁻¹·min⁻¹; data are shown as mean ± SD and compared by ANOVA test, with Bonferroni test for multiple comparisons. ^aP < 0.025, D-low versus D-high; ^bP < 0.050, D-low versus C-high.