Table 3:

Cardiorespiratory fitness (VO₂ peak) during the intervention and follow-up periods^*

Within-group change	Months
	6	12	24	36
No. of participants†
MA	128	117	111	100
SCA	118	114	98	90
Change in VO2 peak, mL/kg/min
MA, mean ± SE	0.9 ± 0.4	1.4 ± 0.4	1.3 ± 0.5	0.2 ± 0.6
SCA, mean ± SE	2.3 ± 0.4	2.1 ± 0.4	2.1 ± 0.5	0.5 ± 0.6
Difference (95% CI)	1.4 (0.5 to 2.3)	0.7 (−0.3 to 1.6)	0.8 (−0.3 to 1.8)	0.2 (−0.9 to 1.4)

Note: CI = confidence interval, MA = monitoring alone, SCA = small change approach, SE = standard error, VO₂ peak = highest oxygen uptake value attained on graded exercise test-to-exhaustion.

^*Values are adjusted mean changes (with standard errors or 95% confidence intervals, as applicable) from mixed-effects models, adjusted for baseline measurements and sex with control-based multiple imputation of missing values.

^†Participation in the test of cardiorespiratory fitness was optional.