Loading...
Effects of providing high-fat versus high-carbohydrate meals on daily and postprandial physical activity and glucose patterns: a randomised controlled trial
Parr, Evelyn Devlin, Brooke Callahan, Marcus J. Radford, Bridget Blankenship, Jennifer M. Dunstan, David Hawley, John
Parr, Evelyn
Devlin, Brooke
Callahan, Marcus J.
Radford, Bridget
Blankenship, Jennifer M.
Dunstan, David
Hawley, John
Abstract
We determined the effects of altering meal timing and diet composition on temporal glucose homeostasis and physical activity measures. Eight sedentary, overweight/obese men (mean ± SD, age: 36 ± 4 years; BMI: 29.8 ± 1.8 kg/m2) completed two × 12-day (12-d) measurement periods, including a 7-d habitual period, and then 5 d of each diet (high-fat diet [HFD]: 67:15:18% fat:carbohydrate:protein versus high-carbohydrate diet [HCD]: 67:15:18% carbohydrate:fat:protein) of three meals/d at ± 30 min of 0800 h, 1230 h, and 1800 h, in a randomised order with an 8-d washout. Energy intake (EI), the timing of meal consumption, blood glucose regulation (continuous glucose monitor system (CGMS)), and activity patterns (accelerometer and inclinometer) were assessed across each 12-d period. Meal provision did not alter the patterns of reduced physical activity, and increased sedentary behaviour following dinner, compared with following breakfast and lunch. The HCD increased peak (+1.6 mmol/L, p < 0.001), mean (+0.5 mmol/L, p = 0.001), and total area under the curve (+670 mmol/L/min, p = 0.001), as well as 3-h postprandial meal glucose concentrations (all p < 0.001) compared with the HFD. In overweight/obese males, the provision of meals did not alter physical activity patterns, but did affect glycaemic control. Greater emphasis on meal timing and composition is required in diet and/or behaviour intervention studies to ensure relevance to real-world behaviour
Keywords
diet, activity, sedentary, glycaemic
Date
2018
Type
Journal article
Journal
Nutrients
Book
Volume
10
Issue
5
Page Range
1-16
Article Number
ACU Department
Centre for Exercise and Nutrition
Faculty of Health Sciences
School of Behavioural and Health Sciences
Mary MacKillop Institute for Health Research
Faculty of Health Sciences
School of Behavioural and Health Sciences
Mary MacKillop Institute for Health Research
Relation URI
Source URL
Event URL
Open Access Status
Open access
License
CC BY 4.0
File Access
Open