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The Effects of a Multicomponent Social Support Intervention on Physical Fitness and Exercise Attitude in Children: A 12-Week Randomized Controlled Trial

Author

Listed:
  • Yijuan Lu

    (Department of Sport Science, College of Education, Zhejiang University, Hangzhou 310027, China)

  • Kehong Yu

    (Department of Sport Science, College of Education, Zhejiang University, Hangzhou 310027, China
    Center for Sports Modernization and Development, Zhejiang University, Hangzhou 310027, China)

  • Jun Jin

    (Wensan Education Group, Wensan Street Primary School, Hangzhou 310061, China)

  • Xiaomei Gan

    (Department of Sport Science, College of Education, Zhejiang University, Hangzhou 310027, China)

Abstract

Purpose: The current study is intended to assess the effects of a multicomponent social support intervention program on grip strength, sprinting, jumping, agility, flexibility, core strength and exercise attitude among children over a period of twelve weeks. Method: This study followed a randomized parallel design in which 366 children (age: 9.35 ± 1.12 years) in the 3rd–5th grade at an elementary school in China were allocated to an intervention group ( n = 183) or a control group ( n = 183). Participants were assessed twice (baseline and postintervention) for the following tests: (i) grip strength, (ii) 50 m dash, (iii) rope skipping, (iv) sit-ups, (v) sit-and-reach, and (vi) exercise attitude. The intervention group received the “Exercise Methods and Wellness Knowledge Guide (EMWKG)” leaflet three times a week. The control group was not required to make any changes. Results: Significant increases in pre–post left-hand grip strength (Cohen’s d = 0.10, p < 0.001), right-hand grip strength (Cohen’s d = 0.09, p < 0.001), and behavioral intention (Cohen’s d = 0.17, p < 0.01) were observed in the intervention group. Students in the control group showed significant decreases in three indicators: both 50 m (Cohen’s d = 0.19, p < 0.01) and sit-ups (Cohen’s d = 0.14, p < 0.05) as well as sit-and-reach (Cohen’s d = 0.46, p < 0.001). Significant differences ( p < 0.001) were found between the two groups in right-hand grip strength ( F = 7.109, η p 2 = 0.020), sit-and-reach ( F = 11.255, η p 2 = 0.031), and subjective standards ( F = 15.461, η p 2 = 0.043). A comparison of the post hoc test results showed that the intervention group scored 0.519 kg (95% CI: 0.136–0.901, Cohen’s d = 0.27), 0.944 cm (95% CI: 0.0391–1.497, Cohen’s d = 0.35), and 2.535 points (95% CI: 1.267–3.803, Cohen’s d = 0.41) higher than the control group in right-hand grip strength, sit-and-reach, and subjective standards, respectively. Conclusion: This combined social support theory-based intervention was effective in improving exercise attitude and fitness among children in 12 weeks.

Suggested Citation

  • Yijuan Lu & Kehong Yu & Jun Jin & Xiaomei Gan, 2022. "The Effects of a Multicomponent Social Support Intervention on Physical Fitness and Exercise Attitude in Children: A 12-Week Randomized Controlled Trial," IJERPH, MDPI, vol. 19(16), pages 1-19, August.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:16:p:9922-:d:885862
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    References listed on IDEAS

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    1. Yijuan Lu & Kehong Yu & Xiaomei Gan, 2022. "Effects of a SMART Goal Setting and 12-Week Core Strength Training Intervention on Physical Fitness and Exercise Attitudes in Adolescents: A Randomized Controlled Trial," IJERPH, MDPI, vol. 19(13), pages 1-19, June.
    2. Ajzen, Icek, 1991. "The theory of planned behavior," Organizational Behavior and Human Decision Processes, Elsevier, vol. 50(2), pages 179-211, December.
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