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Table 4 Analysis of outcomes

From: Evaluating the reach, effectiveness, adoption, implementation and maintenance of the Resistance Training for Teens program

 

Baseline,

n

10-week,

n

Adjusted difference in change,

Mean (95% CI)a

Time

Mean (95% CI)

Mean (95% CI)

p

Fitness tests

 Push-ups (reps)

15.18 (11.99,18.37)

435

18.39 (15.20,21.58)

422

3.21 (1.81,4.61)

 < 0.001

 Standing long jump (cm)

170.57 (162.27,178.88)

440

176.00 (167.69,184.30)

431

5.42 (0.93,9.92)

0.023

Perceived fitnessb

 Perceived general fitness (units)

3.73 (3.58,3.90)

676

3.75 (3.60,3.90)

572

0.02 (-0.05,0.09)

0.527

 Perceived CRF (units)

3.43 (3.36,3.49)

673

3.55 (3.48,3.62)

573

0.13 (0.07,0.19)

 < 0.001

 Perceived MF (units)

3.49 (3.38,3.60)

674

3.53 (3.42,3.64)

576

0.04 (-0.03,0.12)

0.225

 Perceived speed/agility (units)

3.61 (3.54,3.67)

676

3.63 (3.56,3.70)

574

0.02 (-0.03,0.08)

0.392

 Perceived flexibility (units)

3.07 (2.96,3.18)

668

3.20 (3.09,3.30)

574

0.13 (0.05,0.21)

 < 0.05

Self-reported participation in PA

 Total PA (days/week)

3.71 (3.27,4.14)

710

3.93 (3.49,4.37)

566

0.23 (-0.90,0.55)

0.146

 Strength-related PA (days/week)

2.08 (1.79,2.38)

659

2.79 (2.49,3.09)

567

0.70 (0.47,0.93)

 < 0.001

Motivation, self-efficacy and well-being

 PA autonomous motivation (units)c

3.96 (3.91,4.03)

672

3.92 (3.85,3.98)

561

-0.05 (-0.10,0.01)

0.056

 Motivation for RT (units)c

3.47 (3.34,3.59)

668

3.48 (3.35,3.62)

567

0.02 (-0.10,0.14)

0.743

 RT self-efficacy (units)d

3.82 (3.71,3.93)

677

3.91 (3.79,4.02)

573

0.09 (0.03,0.14)

 < 0.05

  1. Abbreviations: CI Confidence intervals, CRF Cardiorespiratory fitness, MF Muscular fitness, PA Physical activity, RT Resistance training
  2. a Within group change over time from mixed model that included baseline and follow-up, and school as a random intercept
  3. b Perceived fitness scale: Participants report perceptions of their ‘general fitness’ and four other specific fitness components on a five-point scale, ranging from Very poor (1) to Very good (5)
  4. c Autonomous motivation for PA and Motivation for RT evaluated using a five-point scale, ranging from Not true for me (1) to Very true for me (5)
  5. d RT self-efficacy evaluated using a five-point scale, ranging from Strongly disagree (1) to Strongly Agree (5)