The Influence of Family History of Type 2 Diabetes on Metabolism during Submaximal Aerobic Exercise and in the Recovery Period in Postmenopausal Women.

Autor: Lagacé JC; Research Centre on Aging, Affiliated with CIUSSS de l'Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada.; Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l'Université, Sherbrooke, QC J1K 2R1, Canada., Paquin J; Research Centre on Aging, Affiliated with CIUSSS de l'Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada.; Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l'Université, Sherbrooke, QC J1K 2R1, Canada., Tremblay R; Research Centre on Aging, Affiliated with CIUSSS de l'Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada.; Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l'Université, Sherbrooke, QC J1K 2R1, Canada., St-Martin P; Research Centre on Aging, Affiliated with CIUSSS de l'Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada.; Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l'Université, Sherbrooke, QC J1K 2R1, Canada., Tessier D; Research Centre on Aging, Affiliated with CIUSSS de l'Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada.; Faculty of Medicine and Health Sciences, University of Sherbrooke, 2500, Boul. De l'Université, Sherbrooke, QC J1K 2R1, Canada., Plourde M; Research Centre on Aging, Affiliated with CIUSSS de l'Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada.; Faculty of Medicine and Health Sciences, University of Sherbrooke, 2500, Boul. De l'Université, Sherbrooke, QC J1K 2R1, Canada., Riesco E; Research Centre on Aging, Affiliated with CIUSSS de l'Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada.; Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l'Université, Sherbrooke, QC J1K 2R1, Canada., Dionne IJ; Research Centre on Aging, Affiliated with CIUSSS de l'Estrie-CHUS, 1036, Rue Belvédère Sud, Sherbrooke, QC J1H 4C4, Canada.; Faculty of Physical Activity Sciences, University of Sherbrooke, 2500, Boul. De l'Université, Sherbrooke, QC J1K 2R1, Canada.
Jazyk: angličtina
Zdroj: Nutrients [Nutrients] 2022 Nov 03; Vol. 14 (21). Date of Electronic Publication: 2022 Nov 03.
DOI: 10.3390/nu14214638
Abstrakt: Aging and family history of type 2 diabetes (T2D) are known risk factors of T2D. Younger first-degree relatives (FDR) of T2D patients have shown early metabolic alterations, which could limit exercise's ability to prevent T2D. Thus, the objective was to determine whether exercise metabolism was altered during submaximal exercise in FDR postmenopausal women. Nineteen inactive postmenopausal women (control: 10, FDR: 9) aged 60 to 75 years old underwent an incremental test on a cycle ergometer with intensity ranging from 40 to 70% of peak power output. Participants consumed 50 mg of 13 C-palmitate 2 h before the test. At the end of each stage, glucose, lactate, glycerol, non-esterified fatty acids and 13 C-palmitate were measured in plasma, and 13 CO 2 was measured in breath samples. Gas exchanges and heart rate were both monitored continuously. There were no between-group differences in substrate oxidation, plasma substrate concentrations or 13 C recovered in plasma or breath. Interestingly, despite exercising at a similar relative intensity to control, FDR were consistently at a lower percentage of heart rate reserve. Overall, substrate plasma concentration and oxidation are not affected by family history of T2D in postmenopausal women and therefore not a participating mechanism in the altered response to exercise previously reported. More studies are required to better understand the mechanisms involved in this response.
Databáze: MEDLINE
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