4.7 Article

Evaluation of Measured Resting Metabolic Rate for Dietary Prescription in Ageing Adults with Overweight and Adiposity-Based Chronic Disease

期刊

NUTRIENTS
卷 13, 期 4, 页码 -

出版社

MDPI
DOI: 10.3390/nu13041229

关键词

resting metabolic rate; prediction equation; ageing adults; overweight; obesity; adiposity-based chronic disease; energy balance; metabolism

资金

  1. Irish Smart Ageing Exchange (ISAX)
  2. Research and Innovation Strategic Endowment (RISE) scholarship scheme (GMIT)

向作者/读者索取更多资源

This study compared weight changes in two groups of aging Irish adults with overweight and chronic diseases based on measured RMR and estimated RMR. Short-term weight reduction favored a decrease in cardiovascular disease risk factors in both groups, showing similar effects in improving weight outcomes.
The primary objective of this study was to compare weight changes in two groups of ageing Irish adults with overweight and adiposity-based chronic disease: participants who had dietary energy requirements prescribed on the base of measured RMR and participants whose RMR was estimated by a prediction equation. Fifty-four Caucasian adults (male n = 25; female n = 29, age 57.5 +/- 6.3 years, weight 90.3 +/- 15.1 kg, height 171.5 +/- 9.5 cm, BMI 30.7 +/- 4.6 kg/m(2)) were randomly assigned to a dietary intervention with energy prescription based on either measured RMR or estimated RMR. RMR was measured by indirect calorimetry after an overnight fast and predicted values were determined by the Mifflin et al. (1990) prediction equation. All participants received individual nutritional counselling, motivational interviewing and educational material. Anthropometric variables, blood pressure, blood glucose and blood lipid profile were assessed over 12 weeks. Body weight at week 12 was significantly lower (p < 0.05) for both groups following dietary interventions, mRMR: -4.2%; eRMR: -3.2% of initial body weight. There was no significant difference in weight loss between groups. Overall, 20.8% mRMR and 17.4% of eRMR participants experienced clinically meaningful (i.e., >= 5% of initial weight) weight reduction. Weight reduction in adults aged >= 50 years over the short term (12 weeks) favoured a reduction in blood pressure, triglycerides and glucose, thus reducing cardiovascular disease risk factors. This research indicates that employing a reduced-calorie diet using indirect calorimetry to determine energy needs when improving weight outcomes in adults (>50 years) with overweight and adiposity-based chronic disease is equal to employing a reduced-calorie diet based on the Mifflin et al. (1990) prediction equation. A reduced-energy diet based on mRMR or eRMR facilitates clinically meaningful weight reduction in adults (>= 50 years) over the short term (12 weeks) and favours a reduction in blood pressure, triglycerides and glucose, thus reducing cardiovascular disease risk factors. Moreover, the addition of motivational interviewing and behaviour change techniques that support and encourage small behaviour changes is effective in short-term weight management.

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