Table 3 Between-group differences in changes in outcomes from the pretest to the posttest.

From: Effectiveness of an adapted physical activity intervention on health-related physical fitness in adolescents with intellectual disability: a randomized controlled trial

Outcome

Mean difference (95% CI)

P-valuea

9-min run/walk (m)

413.6 (146.72 to 680.41)

0.003*

Handgrip strength, left (kg)

2.4 (− 0.66 to 5.36)

0.123

Handgrip strength, right (kg)

 − 0.1 (− 2.56 to 2.38)

0.943

30-s sit-ups (times)

0.5 (− 1.71 to 2.76)

0.640

Sit-and-reach, left (cm)

1.3 (− 1.13 to 3.68)

0.290

Sit-and-reach, right (cm)

2.2 (0.37 to 4.09)

0.020*

  1. CI, Confidence interval.
  2. *p < 0.05.
  3. aBetween-group difference is the mean change difference of the intervention group relative to the control group, which was calculated by the general linear model with the intervention group as the main effect; sex, the presence of comorbidities and the baseline value of outcome measures as covariates.
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