Cited by 123Physical Activity and HealthCardiovascular and exercise physiologyDiabetes, Cardiovascular Risks, and Lipoproteins

Effect of High- versus Low-Intensity Supervised Aerobic and Resistance Training on Modifiable Cardiovascular Risk Factors in Type 2 Diabetes; The Italian Diabetes and Exercise Study (IDES)

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Balducci, Stefano, Zanuso, Silvano, Cardelli, Patrizia, Salvi, Laura, Bazuro, Alessandra, Pugliese, Luca, Maccora, Carla, Iacobini, Carla +4 more·2012·PLoS ONE

Abstract

BACKGROUND: While current recommendations on exercise type and volume have strong experimental bases, there is no clear evidence from large-sized studies indicating whether increasing training intensity provides additional benefits to subjects with type 2 diabetes. OBJECTIVE: To compare the effects of moderate-to-high intensity (HI) versus low-to-moderate intensity (LI) training of equal energy cost, i.e. exercise volume, on modifiable cardiovascular risk factors. DESIGN: Pre-specified sub-analysis of the Italian Diabetes and Exercise Study (IDES), a randomized multicenter prospective trial comparing a supervised exercise intervention with standard care for 12 months (2005-2006). SETTING: Twenty-two outpatient diabetes clinics across Italy. PATIENTS: Sedentary patients with type 2 diabetes assigned to twice-a-week supervised progressive aerobic and resistance training plus exercise counseling (n = 303). INTERVENTIONS: Subjects were randomized by center to LI (n = 142, 136 completed) or HI (n = 161, 152 completed) progressive aerobic and resistance training, i.e. at 55% or 70% of predicted maximal oxygen consumption and at 60% or 80% of predicted 1-Repetition Maximum, respectively, of equal volume. MAIN OUTCOME MEASURE(S): Hemoglobin (Hb) A(1c) and other cardiovascular risk factors; 10-year coronary heart disease (CHD) risk scores. RESULTS: Volume of physical activity, both supervised and non-supervised, was similar in LI and HI participants. Compared with LI training, HI training produced only clinically marginal, though statistically significant, improvements in HbA(1c) (mean difference -0.17% [95% confidence interval -0.44,0.10], P = 0.03), triglycerides (-0.12 mmol/l [-0.34,0.10], P = 0.02) and total cholesterol (-0.24 mmol/l [-0.46, -0.01], P = 0.04), but not in other risk factors and CHD risk scores. However, intensity was not an independent predictor of reduction of any of these parameters. Adverse event rate was similar in HI and LI subjects. CONCLUSIONS: Data from the large IDES cohort indicate that, in low-fitness individuals such as sedentary subjects with type 2 diabetes, increasing exercise intensity is not harmful, but does not provide additional benefits on cardiovascular risk factors. TRIAL REGISTRATION: www.ISRCTN.org ISRCTN-04252749.

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  • In the IDES trial, after 1 year the high-intensity training group had a 0.17% greater improvement in A1c than the low-intensity training group.

    “After 1 year, those in the highintensity training group had a 0.17% greater improvement in A1c compared to those in the lowintensity training group.”
  • Progressively increasing the duration and intensity of aerobic exercise can lead to further improvements in A1c.

    “Progressively increasing the duration and intensity of aerobic exercise can lead to further improvements in A1c.”

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  1. [15]Boulé NG, Kenny GP, Haddad E, Wells GA, Sigal RJ (2003) Meta-analysis of the effect of structured exercise training on cardiorespiratory fitness in Type 2 diabetes mellitus. Diabetologia. 46: 1071– 1081. 12856082
  2. [27]Sigal RJ, Kenny GP, Wasserman DH, Castaneda-Sceppa C, White RD (2006) Physical activity/exercise and type 2 diabetes: a consensus statement from the American Diabetes Association. Diabetes Care. 29: 1433– 1438. 16732040

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Authors
Balducci, S., Zanuso, S., Cardelli, P., Salvi, L., Bazuro, A., Pugliese, L., Maccora, C., Iacobini, C., Conti, F. G., Nicolucci, A., Pugliese, G., & for the Italian Diabetes Exercise Study (IDES) Investigators
Affiliations
  • Azienda Ospedaliera Sant'Andrea (IT)
  • University of Greenwich (GB)
  • Associazione Fitness Metabolica O.N.L.U.S. (IT)
  • Mario Negri Sud Foundation (IT)
Corresponding author
Pugliese, Giuseppe
Venue
PLoS ONE
Published
2012-11-21
Volume
7
Issue
11
Pages
e49297
ISSN
1932-6203 (ISSN-L)
OpenAlex
W1985621733
Cited by
123
References
42
Citations by year
2026: 3 · 2025: 4 · 2024: 10 · 2023: 11 · 2022: 8 · 2021: 3 · 2020: 8 · 2019: 6 · 2018: 14 · 2017: 11 · 2016: 10 · 2015: 15 · 2014: 10 · 2013: 10
FWCI
7.51
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
Funders
  • Bristol-Myers Squibb
  • Novo Nordisk
Topics
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
Keywords
type 2 diabetes, exercise intensity, high-intensity training, low-intensity training, supervised exercise, aerobic exercise, resistance training, cardiovascular risk factors, HbA1c, triglycerides, total cholesterol, coronary heart disease risk, sedentary patients, physical activity counseling, adverse events, exercise adherence, physical activity volume
MeSH terms
Cardiovascular Diseases, Diabetes Mellitus, Type 2, Energy Metabolism, Female, Humans, Italy, Male, Middle Aged, Physical Fitness, Risk Factors, Resistance Training

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