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The effect of low-volume high-intensity interval training on cardiovascular health outcomes in type 2 diabetes: A randomised controlled trial.
Way, Kimberley L; Sabag, Angelo; Sultana, Rachelle N; Baker, Michael K; Keating, Shelley E; Lanting, Sean; Gerofi, James; Chuter, Vivienne H; Caterson, Ian D; Twigg, Stephen M; Johnson, Nathan A.
Affiliation
  • Way KL; Faculty of Medicine and Health, Discipline of Exercise and Sports Science, University of Sydney, Camperdown, NSW, Australia; The Boden Collaboration for Obesity, Nutrition, Exercise and Eating Disorders, University of Sydney, Camperdown, NSW, Australia; The Charles Perkins Centre, University of Sydn
  • Sabag A; Faculty of Medicine and Health, Discipline of Exercise and Sports Science, University of Sydney, Camperdown, NSW, Australia; The Boden Collaboration for Obesity, Nutrition, Exercise and Eating Disorders, University of Sydney, Camperdown, NSW, Australia; The Charles Perkins Centre, University of Sydn
  • Sultana RN; Faculty of Medicine and Health, Discipline of Exercise and Sports Science, University of Sydney, Camperdown, NSW, Australia; The Boden Collaboration for Obesity, Nutrition, Exercise and Eating Disorders, University of Sydney, Camperdown, NSW, Australia; The Charles Perkins Centre, University of Sydn
  • Baker MK; School of Exercise Science, Australian Catholic University, Strathfield, NSW, Australia.
  • Keating SE; Centre for Research on Exercise, Physical Activity and Health, School of Human Movement, and Nutrition Sciences, The University of Queensland, St Lucia, QLD, Australia.
  • Lanting S; School of Health Sciences, University of Newcastle, Ourimbah, NSW, Australia.
  • Gerofi J; The Boden Collaboration for Obesity, Nutrition, Exercise and Eating Disorders, University of Sydney, Camperdown, NSW, Australia; The Charles Perkins Centre, University of Sydney, Camperdown, NSW, Australia.
  • Chuter VH; Centre for Research on Exercise, Physical Activity and Health, School of Human Movement, and Nutrition Sciences, The University of Queensland, St Lucia, QLD, Australia.
  • Caterson ID; The Boden Collaboration for Obesity, Nutrition, Exercise and Eating Disorders, University of Sydney, Camperdown, NSW, Australia; The Charles Perkins Centre, University of Sydney, Camperdown, NSW, Australia.
  • Twigg SM; The Charles Perkins Centre, University of Sydney, Camperdown, NSW, Australia; Central Clinical School, School of Medicine, University of Sydney, Camperdown, NSW, Australia.
  • Johnson NA; Faculty of Medicine and Health, Discipline of Exercise and Sports Science, University of Sydney, Camperdown, NSW, Australia; The Boden Collaboration for Obesity, Nutrition, Exercise and Eating Disorders, University of Sydney, Camperdown, NSW, Australia; The Charles Perkins Centre, University of Sydn
Int J Cardiol ; 320: 148-154, 2020 Dec 01.
Article in En | MEDLINE | ID: mdl-32598997
BACKGROUND: Low-volume high-intensity interval training (HIIT) may be a time-efficient strategy that leads to similar or superior improvements in cardiorespiratory fitness (CRF) and cardiovascular disease (CVD) risk factors when compared with moderate-intensity continuous training (MICT). Our study investigated the effect of low-volume HIIT or MICT versus sham placebo-control (PLA) on central arterial stiffness, hemodynamic responses, and CVD risk factors in adults with obesity and type 2 diabetes (T2D). METHODS: Eligible participants were previously inactive adults with obesity and T2D. Individuals were randomly allocated to: i) HIIT (1 × 4 min cycling at 90% peak oxygen consumption [V̇O2peak]); ii) MICT (45 min of cycling at 60% VO2peak); or PLA. Training groups exercised thrice weekly for 12 weeks. Central arterial stiffness, hemodynamics and CVD risk factors were assessed at baseline and post-intervention. Analysis of covariance (ANCOVA) was used to examine changes following HIIT, MICT and PLA. RESULTS: Thirty-five participants (age: 55.1 ± 1.4 years, BMI: 36.1 ± 0.8 kg/m2) completed the study. A significant intervention effect was found for changes in pulse wave velocity (PWV) (p = .03), which reduced with HIIT (-0.3 ± 0.9 m/s) and MICT (-0.1 ± 1.1 m/s) but increased with PLA (0.8 ± 1.6 m/s). There was a significant intervention effect for changes in V̇O2peak (p < .01), glycosylated hemoglobin (p = .03), systolic blood pressure (p < .01), and waist circumference (p = .03), which all improved following MICT or HIIT but not PLA; there was no difference between MICT and HIIT. CONCLUSIONS: Twelve minutes of low-volume HIIT per week leads to improvements in central arterial stiffness and cardiovascular health in inactive individuals with obesity and T2D.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Diabetes Mellitus, Type 2 / High-Intensity Interval Training / Cardiorespiratory Fitness Type of study: Clinical_trials / Diagnostic_studies / Risk_factors_studies Limits: Adult / Humans / Middle aged Language: En Journal: Int J Cardiol Year: 2020 Document type: Article Country of publication: Netherlands
Fulltext
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Diabetes Mellitus, Type 2 / High-Intensity Interval Training / Cardiorespiratory Fitness Type of study: Clinical_trials / Diagnostic_studies / Risk_factors_studies Limits: Adult / Humans / Middle aged Language: En Journal: Int J Cardiol Year: 2020 Document type: Article Country of publication: Netherlands