Article (Scientific journals)
Initial Dietary Protein Intake Influence Muscle Function Adaptations in Older Men and Women Following High-Intensity Interval Training Combined with Citrulline.
Buckinx, Fanny; Marcangeli, Vincent; Pinheiro Carvalho, Lívia et al.
2019In Nutrients, 11 (7), p. 1685
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Keywords :
HIIT; aging; citrulline; functional capacities; muscle function; protein intake; Dietary Proteins; Citrulline; Adaptation, Physiological; Aged; Citrulline/administration & dosage; Citrulline/pharmacology; Dietary Proteins/administration & dosage; Dietary Proteins/pharmacology; Double-Blind Method; Female; Humans; Male; Middle Aged; Muscle Strength/drug effects; Muscle, Skeletal/chemistry; Muscle, Skeletal/drug effects; High-Intensity Interval Training; Muscle Strength; Muscle, Skeletal; Food Science; Nutrition and Dietetics
Abstract :
[en] BACKGROUND: This study evaluates whether the initial amount of dietary protein intake could influence the combined effect of high-intensity interval training (HIIT) and citrulline (CIT), or HIIT alone, on body composition, muscle strength, and functional capacities in obese older adults. METHODS: Seventy-three sedentary obese older men and women who completed a 12-week elliptical HIIT program with double-blinded randomized supplementation of CIT or placebo (PLA) were divided into four groups according to their initial protein intake (CIT-PROT+: n = 21; CIT-PROT-: n = 19; PLA-PROT+: n = 19; PLA-PROT-: n = 14). Body composition (fat and fat-free masses), handgrip (HSr) strength, knee extensor (KESr) strength, muscle power, and functional capacities were measured pre-intervention and post-intervention. RESULTS: Following the intervention, the four groups improved significantly regarding all the parameters measured. For the same initial amount of protein intake, the CIT-PROT- group decreased more gynoid fat mass (p = 0.04) than the PLA-PROT- group. The CIT-PROT+ group increased more KESr (p = 0.04) than the PLA-PROT+ group. In addition, the CIT-PROT- group decreased more gynoid FM (p = 0.02) and improved more leg FFM (p = 0.02) and HSr (p = 0.02) than the CIT-PROT+ group. CONCLUSION: HIIT combined with CIT induced greater positive changes than in the PLA groups. The combination seems more beneficial in participants consuming less than 1 g/kg/d of protein, since greater improvements on body composition and muscle strength were observed.
Disciplines :
Geriatrics
Author, co-author :
Buckinx, Fanny  ;  Université de Liège - ULiège > Unité de recherche Santé publique, épidémiologie et économie de la santé (URSAPES) ; Department of Exercise Science, Groupe de Recherche en Activité Physique Adapté (GRAPA), Université du Québec à Montréal, Montréal, QC H2X 1Y4, Canada ; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC H3W 1W6, Canada ; WHO Collaborating Centre for Public Health Aspects of Musculoskeletal Health and Ageing, 4000 Liège, Belgium
Marcangeli, Vincent;  Department of Exercise Science, Groupe de Recherche en Activité Physique Adapté (GRAPA), Université du Québec à Montréal, Montréal, QC H2X 1Y4, Canada ; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC H3W 1W6, Canada
Pinheiro Carvalho, Lívia;  Department of Exercise Science, Groupe de Recherche en Activité Physique Adapté (GRAPA), Université du Québec à Montréal, Montréal, QC H2X 1Y4, Canada ; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC H3W 1W6, Canada
Dulac, Maude;  Department of biology, Université du Québec à Montréal, Montréal, QC H2X 1Y4, Canada
Hajj Boutros, Guy;  Department of Exercise Science, Groupe de Recherche en Activité Physique Adapté (GRAPA), Université du Québec à Montréal, Montréal, QC H2X 1Y4, Canada ; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC H3W 1W6, Canada
Gouspillou, Gilles;  Department of Exercise Science, Groupe de Recherche en Activité Physique Adapté (GRAPA), Université du Québec à Montréal, Montréal, QC H2X 1Y4, Canada ; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC H3W 1W6, Canada
Gaudreau, Pierrette;  Centre de Recherche du Centre Hospitalier Universitaire de Montréal and Département de médecine, Université de Montréal, Montreal, QC H3T 1J4, Canada
Morais, José;  The Research Institute of the McGill University Health Centre and Division of Geriatric Medicine, McGill University, Montreal, QC H3A0G4, Canada
Noirez, Philippe ;  Department of Exercise Science, Groupe de Recherche en Activité Physique Adapté (GRAPA), Université du Québec à Montréal, Montréal, QC H2X 1Y4, Canada ; Université Paris Descartes, Institut de Recherche bioMédicale et d'Épidémiologie du Sport (IRMES), 75015 Paris, France
Aubertin-Leheudre, Mylène;  Department of Exercise Science, Groupe de Recherche en Activité Physique Adapté (GRAPA), Université du Québec à Montréal, Montréal, QC H2X 1Y4, Canada. aubertin-leheudre.mylene@uqam.ca ; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montréal, QC H3W 1W6, Canada. aubertin-leheudre.mylene@uqam.ca
Language :
English
Title :
Initial Dietary Protein Intake Influence Muscle Function Adaptations in Older Men and Women Following High-Intensity Interval Training Combined with Citrulline.
Publication date :
22 July 2019
Journal title :
Nutrients
ISSN :
2072-6643
Publisher :
MDPI AG, Basel, Switzerland
Volume :
11
Issue :
7
Pages :
1685
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This study was supported by the Fonds de Recherche du Qu?bec en Sant?(FRQS)-Universit? du Qu?bec ? Montr?al fund and by the Quebec Network for Research on Aging, a thematic network supported by the FRQS (QNRA-FRQS) and the Canada Foundation for Innovation. MAL and GG are recipients of Chercheur Boursier Junior 1 (GG) and Junior 2 (MAL) salary awards from the FRQS. The authors are grateful to all the volunteers for their participation in this study and to Carole Roy for her technical support. The citrulline supplementation was provided for free by Citrage?.Acknowledgments: This study was supported by the Fonds de Recherche du Québec en Santé(FRQS)—Université du Québec à Montréal fund and by the Quebec Network for Research on Aging, a thematic network supported by the FRQS (QNRA-FRQS) and the Canada Foundation for Innovation. MAL and GG are recipients of Chercheur Boursier Junior 1 (GG) and Junior 2 (MAL) salary awards from the FRQS. The authors are grateful to all the volunteers for their participation in this study and to Carole Roy for her technical support. The citrulline supplementation was provided for free by Citrage©.
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