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Metabolic effects of a 13-weeks lifestyle intervention in older adults: The Growing Old Together Study.

ABSTRACT: For people in their 40s and 50s, lifestyle programs have been shown to improve metabolic health. For older adults, however, it is not clear whether these programs are equally healthy. In the Growing Old Together study, we applied a 13-weeks lifestyle program, with a target of 12.5% caloric restriction and 12.5% increase in energy expenditure through an increase in physical activity, in 164 older adults (mean age=63.2 years; BMI=23-35 kg/m2). Mean weight loss was 4.2% (SE=2.8%) of baseline weight, which is comparable to a previous study in younger adults. Fasting insulin levels, however, showed a much smaller decrease (0.30 mU/L (SE=3.21)) and a more heterogeneous response (range=2.0-29.6 mU/L). Many other parameters of metabolic health, such as blood pressure, and thyroid, glucose and lipid metabolism improved significantly. Many 1H-NMR metabolites changed in a direction previously associated with a low risk of type 2 diabetes and cardiovascular disease and partially independently of weight loss. In conclusion, 25% reduction in energy balance for 13 weeks induced a metabolic health benefit in older adults, monitored by traditional and novel metabolic markers.

SUBMITTER: van de Rest O

PROVIDER: S-EPMC4761717 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature

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Metabolic effects of a 13-weeks lifestyle intervention in older adults: The Growing Old Together Study.

van de Rest Ondine O Schutte Bianca A M BA Deelen Joris J Stassen Stephanie A M SA van den Akker Erik B EB van Heemst Diana D Dibbets-Schneider Petra P van Dipten-van der Veen Regina A RA Kelderman Milou M Hankemeier Thomas T Mooijaart Simon P SP van der Grond Jeroen J Houwing-Duistermaat Jeanine J JJ Beekman Marian M Feskens Edith J M EJ Slagboom P Eline PE

Aging 20160101 1

For people in their 40s and 50s, lifestyle programs have been shown to improve metabolic health. For older adults, however, it is not clear whether these programs are equally healthy. In the Growing Old Together study, we applied a 13-weeks lifestyle program, with a target of 12.5% caloric restriction and 12.5% increase in energy expenditure through an increase in physical activity, in 164 older adults (mean age=63.2 years; BMI=23-35 kg/m2). Mean weight loss was 4.2% (SE=2.8%) of baseline weight ...[more]

PMID: 26824634

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Project description:Importance/Objective: To describe the feasibility and acceptability of a 6-month web-based multidomain lifestyle training intervention for community-dwelling older people and to test the effects of the intervention on both function- and lifestyle-related outcomes.Design6-month, parallel-group, randomized controlled trial (RCT).SettingToulouse area, South-West, France.ParticipantsCommunity-dwelling men and women, ≥ 65 years-old, presenting subjective memory complaint, without dementia.InterventionThe web-based multidomain intervention group (MIG) received a tablet to access the multidomain platform and a wrist-worn accelerometer measuring step counts; the control group (CG) received only the wrist-worn accelerometer. The multidomain platform was composed of nutritional advices, personalized exercise training, and cognitive training. Main outcomes and measures: Feasibility, defined as the proportion of people connecting to ≥75% of the prescribed sessions, and acceptability, investigated through content analysis from recorded semi-structured interviews. Secondary outcomes included clinical (eg, cognitive function, mobility, health-related quality of life (HRQOL)) and lifestyle (eg, step count, food intake) measurements.ResultsAmong the 120 subjects (74.2 ±5.6 years-old; 57.5% women), 109 completed the study (n=54, MIG; n=55, CG). 58 MIG subjects connected to the multidomain platform at least once; among them, adherers of ≥75% of sessions varied across multidomain components: 37 people (63.8% of 58 participants) for cognitive training, 35 (60.3%) for nutrition, and three (5.2%) for exercise; these three persons adhered to all multidomain components. Participants considered study procedures and multidomain content in a positive way; the most cited weaknesses were related to exercise: too easy, repetitive, and slow progression. Compared to controls, the intervention had a positive effect on HRQOL; no significant effects were observed across the other clinical and lifestyle outcomes.Conclusions and relevanceProviding multidomain lifestyle training through a web-platform is feasible and well-accepted, but the training should be challenging enough and adequately progress according to participants' capabilities to increase adherence. Recommendations for a larger on-line multidomain lifestyle training RCT are provided.

Dataset Information

Metabolic effects of a 13-weeks lifestyle intervention in older adults: The Growing Old Together Study.

Publications

Metabolic effects of a 13-weeks lifestyle intervention in older adults: The Growing Old Together Study.

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