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Resist diabetes: A randomized clinical trial for resistance training maintenance in adults with prediabetes

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Listed:
  • Brenda M Davy
  • Richard A Winett
  • Jyoti Savla
  • Elaina L Marinik
  • Mary Elizabeth Baugh
  • Kyle D Flack
  • Tanya M Halliday
  • Sarah A Kelleher
  • Sheila G Winett
  • David M Williams
  • Soheir Boshra

Abstract

Objective: To determine whether a social cognitive theory (SCT)-based intervention improves resistance training (RT) maintenance and strength, and reduces prediabetes prevalence. Research design and methods: Sedentary, overweight/obese (BMI: 25–39.9 kg/m2) adults aged 50–69 (N = 170) with prediabetes participated in the 15-month trial. Participants completed a supervised 3-month RT (2×/wk) phase and were randomly assigned (N = 159) to one of two 6-month maintenance conditions: SCT or standard care. Participants continued RT at a self-selected facility. The final 6-month period involved no contact. Assessments occurred at baseline and months 3, 9, and 15. The SCT faded-contact intervention consisted of nine tailored transition (i.e., supervised training to training alone) and nine follow-up sessions. Standard care involved six generic follow-up sessions. Primary outcomes were prevalence of normoglycemia and muscular strength. Results: The retention rate was 76%. Four serious adverse events were reported. After 3 months of RT, 34% of participants were no longer prediabetic. This prevalence of normoglycemia was maintained through month 15 (30%), with no group difference. There was an 18% increase in the odds of being normoglycemic for each % increase in fat-free mass. Increases in muscular strength were evident at month 3 and maintained through month 15 (P

Suggested Citation

  • Brenda M Davy & Richard A Winett & Jyoti Savla & Elaina L Marinik & Mary Elizabeth Baugh & Kyle D Flack & Tanya M Halliday & Sarah A Kelleher & Sheila G Winett & David M Williams & Soheir Boshra, 2017. "Resist diabetes: A randomized clinical trial for resistance training maintenance in adults with prediabetes," PLOS ONE, Public Library of Science, vol. 12(2), pages 1-18, February.
    • Handle: RePEc:plo:pone00:0172610
    DOI: 10.1371/journal.pone.0172610
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