Cited by 40Muscle metabolism and nutritionNutrition and Health in AgingDietary Effects on Health

Effect of a High-Protein Energy-Restricted Diet Combined with Resistance Training on Metabolic Profile in Older Individuals with Metabolic Impairments

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Amamou, T., Normandin, E., Pouliot, J., Dionne, I.J., Brochu, M., Riesco, Eléonor·2017·The Journal of nutrition, health and aging

Abstract

Adequate protein intake and resistance training are effective strategies to maintain muscle mass, but the effect of their combination on metabolic profile during weight loss remains to be determined in older adults. The main objective of this study was to determine the effect of a 16-week high-protein caloric restriction combined with resistance training on chronic disease risk factors in obese older individuals with metabolic impairments. A total of 26 overweight adults aged between 60 and 75 years (BMI 32.4 ± 3.9 kg/m2) with at least 2 factors of the metabolic syndrome participated in this study and were randomized into two groups: 1) high-protein caloric restriction (HP; n= 12) and 2) high-protein caloric restriction combined with dynamic-resistance training (HP+RT; n=14). Caloric intake was reduced by 500 kcal/d in all participants and protein intake equated 25-30% of total calories (~1.4 g/kg/d). Exercise training consisted of 3 session/week of resistance training on pulley machines. Outcome measures included total and trunk fat mass (FM), total and appendicular lean body mass (LBM), fasting glucose level, lipid profile and blood pressure. Our results showed that total and trunk FM (all p<0.0001) as well as fasting glucose (p<0.0001), triglycerides (p=0.002) and total cholesterol (p=0.03) levels decreased similarly in both groups. However, total (p=0.04) and appendicular (p=0.02) LBM decreased in the HP group only. Our data show that high-protein energy restriction improves health profile of obese elderly at high risk of chronic disease but needs to be combined with resistance training to maintain LBM.

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  • The only study that investigated CR effects in combination with higher protein intake (30% compared to 15%) found lower LBM loss than the others (RMD 1.3 kg compared to the main effect of RMD 0.6 kg).

    “The only study that has investigated the CR effects in combination with higher protein intake (30% compared to 15% of the rest) found lower LBM loss than the others (RMD 1.3 kg compared to the main effect of RMD 0.6 kg) [7].”

    From Resistance Training Prevents Muscle Loss Induced by Caloric Restriction in Obese Elderly Individuals: A Systematic Review and Meta-Analysis (2018) · cites this paper as [7]

    The Methods (Caloric restriction diet; page unavailable) report approximately 30% protein in both study groups. Table 2 (Results; page unavailable) reports total LBM changes of −0.9 kg with high-protein caloric restriction alone and +0.4 kg when resistance training was added—a 1.3 kg between-group difference. The paper does not compare its groups with a 15%-protein group or report the claimed 0.6 kg main effect across other studies. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Six RCTs were included for the final meta-analysis.

    “Six RCTs were included for the final meta-analysis [7,15,16,20,23].”

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  1. [8]Obesity: preventingmanaging the global epidemic. Report of a WHO consultation. World Health Organization technical report series 2000 11234459

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Authors
Amamou, T., Normandin, E., Pouliot, J., Dionne, I. J., Brochu, M., & Riesco, E.
Affiliations
Université de Sherbrooke (CA)
Venue
The Journal of nutrition, health and aging
Publisher
Elsevier BV
Published
2017-01
Volume
21
Issue
1
Pages
67-74
ISSN
1279-7707 (ISSN-L)
OpenAlex
W2469968333
Cited by
40
References
53
Citations by year
2026: 1 · 2024: 1 · 2023: 5 · 2022: 8 · 2021: 3 · 2020: 4 · 2019: 6 · 2018: 8 · 2017: 4
FWCI
4.13
Type
journal article
Language
en
Open access
Locations
  • The journal of nutrition health & aging (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Health Sciences › Medicine › Physiology › Dietary Effects on Health
Keywords
high-protein diet, caloric restriction, resistance training, metabolic syndrome, older adults, obesity, weight loss, lean body mass, fat mass, fasting blood glucose, lipid profile, blood pressure, chronic disease risk factors
MeSH terms
Aged, Blood Glucose, Blood Pressure, Body Composition, Energy Intake, Cholesterol, Dietary Proteins, Female, Humans, Male, Middle Aged, Obesity, Risk Factors, Triglycerides, Body Mass Index, Metabolic Syndrome, Caloric Restriction, Overweight, Resistance Training, Metabolome

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