scholarly journals Contrary to the Conclusions Stated in the Paper, Only Dry Fat-Free Mass Was Different between Groups upon Reanalysis. Comment on: “Intermittent Energy Restriction Attenuates the Loss of Fat-Free Mass in Resistance Trained Individuals. A Randomized Controlled Trial”

2020 ◽  
Vol 5 (4) ◽  
pp. 85
Author(s):  
Jackson Peos ◽  
Andrew W. Brown ◽  
Colby J. Vorland ◽  
David B. Allison ◽  
Amanda Sainsbury
Keyword(s):  
Randomized Controlled Trial ◽  
Body Composition ◽  
Randomised Controlled Trial ◽  
Controlled Trial ◽  
Resting Metabolic Rate ◽  
Energy Restriction ◽  
Fat Free Mass ◽  
Randomized Controlled ◽  
Continuous Energy ◽  
Randomised Controlled

Campbell and colleagues recently published a randomised controlled trial investigating the effects of diets involving intermittent energy restriction versus continuous energy restriction on changes in body composition and resting metabolic rate (RMR) in resistance-trained adults[...]

scholarly journals Correction to: The effect of moderate intermittent versus continuous energy restriction on body composition and resting metabolic rate in resistance-trained females: A randomized controlled trial

2020 ◽  
Vol 17 (1) ◽  
Author(s):  
Madelin R. Siedler ◽  
Eric T. Trexler ◽  
Megan N. Humphries ◽  
Priscila Lamadrid ◽  
Brian Waddell ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Body Composition ◽  
Metabolic Rate ◽  
Controlled Trial ◽  
Resting Metabolic Rate ◽  
Energy Restriction ◽  
Randomized Controlled ◽  
Continuous Energy

An amendment to this paper has been published and can be accessed via the original article.

scholarly journals Continuous versus intermittent moderate energy restriction for increased fat mass loss and fat free mass retention in adult athletes: protocol for a randomised controlled trial—the ICECAP trial (Intermittent versus Continuous Energy restriction Compared in an Athlete Population)

2018 ◽  
Vol 4 (1) ◽  
pp. e000423 ◽  
Author(s):  
Jackson J Peos ◽  
Eric R Helms ◽  
Paul A Fournier ◽  
Amanda Sainsbury
Keyword(s):  
Randomised Controlled Trial ◽  
Fat Mass ◽  
Controlled Trial ◽  
Resting Energy Expenditure ◽  
Energy Restriction ◽  
Fat Free Mass ◽  
Muscle Performance ◽  
Adaptive Responses ◽  
Continuous Energy ◽  
Randomised Controlled

IntroductionReducing fat mass (FM) while retaining fat free mass (FFM) is a common goal of athletes. Evidence suggests that some—but not all—forms of intermittent energy restriction (IER) may be superior to the conventional method of continuous energy restriction (CER) for people with excess body fat that are sedentary, by reducing some of the adaptive responses to ER. However, it is yet to be established whether this dietary approach is effective for athletes.Methods and analysisA single-blind, parallel group, randomised controlled trial with a 1:1 allocation ratio is proposed. Sixty healthy athletes aged ≥18 years will be recruited from local sporting facilities and randomised to an intervention of either moderate CER (mCER) or moderate IER (mIER). Both interventions will consist of 12 weeks of moderate ER, plus 3 weeks in energy balance (EB). The mCER intervention will entail 12 weeks of continuous moderate ER, followed by 3 weeks in EB. The mIER intervention will entail 12 weeks of moderate ER, administered as 4×3 week blocks of moderate ER, interspersed with 3×1 week blocks of EB. The co-primary outcomes are changes in FM and FFM after 12 weeks of moderate ER. Secondary outcomes will be changes in FM and FFM at 15 weeks after intervention commencement, as well as muscle performance, physical activity, sleep quality, changes in resting energy expenditure, subjective drive to eat, circulating concentrations of appetite-regulating hormones, mood states and diet acceptability.Trial registrationACTRN12618000638235p.

scholarly journals Rationale and Protocol for a Randomized Controlled Trial Comparing Fast versus Slow Weight Loss in Postmenopausal Women with Obesity—The TEMPO Diet Trial

Healthcare ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 85 ◽  
Author(s):  
Radhika Seimon ◽  
Alice Gibson ◽  
Claudia Harper ◽  
Shelley Keating ◽  
Nathan Johnson ◽  
...  
Keyword(s):  
Weight Loss ◽  
Randomized Controlled Trial ◽  
Body Composition ◽  
Eating Disorder ◽  
Controlled Trial ◽  
Energy Restriction ◽  
Cardiometabolic Health ◽  
Meal Replacement ◽  
Randomized Controlled ◽  
Eating Disorder Behaviors

Very low energy diets (VLEDs), commonly achieved by replacing all food with meal replacement products and which result in fast weight loss, are the most effective dietary obesity treatment available. VLEDs are also cheaper to administer than conventional, food-based diets, which result in slow weight loss. Despite being effective and affordable, these diets are underutilized by healthcare professionals, possibly due to concerns about potential adverse effects on body composition and eating disorder behaviors. This paper describes the rationale and detailed protocol for the TEMPO Diet Trial (Type of Energy Manipulation for Promoting optimal metabolic health and body composition in Obesity), in a randomized controlled trial comparing the long-term (3-year) effects of fast versus slow weight loss. One hundred and one post-menopausal women aged 45–65 years with a body mass index of 30–40 kg/m2 were randomized to either: (1) 16 weeks of fast weight loss, achieved by a total meal replacement diet, followed by slow weight loss (as for the SLOW intervention) for the remaining time up until 52 weeks (“FAST” intervention), or (2) 52 weeks of slow weight loss, achieved by a conventional, food-based diet (“SLOW” intervention). Parameters of body composition, cardiometabolic health, eating disorder behaviors and psychology, and adaptive responses to energy restriction were measured throughout the 3-year trial.

scholarly journals Intermittent Energy Restriction Attenuates the Loss of Fat Free Mass in Resistance Trained Individuals. A Randomized Controlled Trial

2020 ◽  
Vol 5 (1) ◽  
pp. 19 ◽  
Author(s):  
Bill I. Campbell ◽  
Danielle Aguilar ◽  
Lauren M. Colenso-Semple ◽  
Kevin Hartke ◽  
Abby R. Fleming ◽  
...  
Keyword(s):  
Caloric Restriction ◽  
Controlled Trial ◽  
Resting Metabolic Rate ◽  
Energy Restriction ◽  
Fat Free Mass ◽  
Continuous Group ◽  
Continuous Energy ◽  
Group A ◽  
Males And Females ◽  
Composition Changes

There is a lack of research into how lean, resistance trained (RT) individuals respond to intermittent energy restricted diets. Therefore, we investigated body composition changes in RT-individuals during continuous energy restriction or intermittent restriction. A total of 27 males and females (25 ± 6.1 years; 169 ± 9.4 cm; 80 ± 15.6 kg) were randomized to a ~25% caloric restricted diet Refeed (RF; n = 13) or Continuous group (CN; n = 14) in conjunction with 4-days/week resistance training for 7-weeks. RF implemented two consecutive days of elevated carbohydrate (CHO) intake, followed by 5-days of caloric restriction each week. CN adhered to a continuous 7-week caloric restriction. Body mass (BM), fat mass (FM), fat-free mass (FFM), dry fat-free mass (dFFM), and resting metabolic rate (RMR) were assessed pre/post-diet. Both groups significantly reduced BM (RF: baseline = 76.4 ± 15.6 kg, post-diet = 73.2 ± 13.8 kg, Δ3.2 kg; CN: baseline = 83.1 ± 15.4 kg, post-diet = 79.5 ± 15 kg, Δ3.6 kg) and FM (RF: baseline = 16.3 ± 4 kg, post-diet = 13.5 ± 3.6 kg, Δ2.8 kg; CN: baseline = 16.7 ± 4.5 kg, post-diet = 14.4 ± 4.9 kg, Δ2.3 kg) with no differences between groups. FFM (RF: baseline = 60.1 ± 13.8 kg, post-diet = 59.7 ± 13.0 kg, 0.4 kg; CN: baseline = 66.4 ± 15.2 kg, post-diet = 65.1 ± 15.2 kg, Δ1.3 kg p = 0.006), dFFM (RF: baseline = 18.7 ± 5.0 kg, post-diet = 18.5 ± 4.5 kg, Δ0.2 kg; CN: baseline =21.9 ± 5.7 kg, post-diet = 20.0 ± 5.7 kg, Δ1.9 kg), and RMR (RF: baseline = 1703 ± 294, post-diet = 1665 ± 270, Δ38 kcals; CN: baseline = 1867 ± 342, post-diet = 1789 ± 409, Δ78 kcals) were better maintained in the RF group. A 2-day carbohydrate refeed preserves FFM, dryFFM, and RMR during energy restriction compared to continuous energy restriction in RT-individuals.

scholarly journals Gut Microbiota Is Linked to Physical Health Improvements Resulting from Energy-Restricted Diet and Exercise: A Randomized Controlled Trial in Healthy Adults

Proceedings ◽  
2020 ◽  
Vol 61 (1) ◽  
pp. 8
Author(s):  
Shakuntla Gondalia ◽  
Matthew Cooke ◽  
Stephen Keenan ◽  
Regina Belski
Keyword(s):  
Randomized Controlled Trial ◽  
Resistance Training ◽  
Gut Microbiota ◽  
Physical Health ◽  
Gut Microbiome ◽  
Controlled Trial ◽  
Energy Restriction ◽  
Restricted Diet ◽  
Randomized Controlled ◽  
Continuous Energy

Animal studies have demonstrated that energy-restricted diets and exercise affect the gut microbiome and are positively linked to physical health; however, less is known about the impacts of various patterns of dietary restriction combined with exercise on the gut microbiota and associated health outcomes in humans. This study aimed to determine if an energy-restricted diet combined with resistance training altered the gut microbiome, and whether any changes were associated with differences in body composition, dietary intake, or biomarkers of metabolic health. Twenty-six healthy males and females, aged 19–36 years with BMIs of 22–35 kg/m2, were enrolled in a 2-arm parallel, randomized controlled trial and followed either a 5:2 intermittent fasting (IFT, n = 13) or continuous energy restriction (CERT, n = 13) diet combined with supervised resistance training for 12 weeks. Both treatments resulted in decreased body weight and increased lean body mass. Shifts in the abundance of, Faecalibacterium prausnitzii, a high butyrate producer, was positively associated with changes in lean body mass (IFTp = 0.05, CERTp = 0.01) in both the groups. Moreover, in the CERT group, changes in Coprococcus genus were negatively associated with energy (p = 0.009) and fat intake (p= 0.03) and positively associated with body fat (p = 0.02). Overall, the findings indicate that using resistance training paired with either intermittent or continuous energy restriction, result in similar changes in bacterial diversity and shifts in relative abundance of bacterial taxa. The shift in specific bacterial taxa were positively associated with measures of physical health providing further support to the proposed relationship between energy consumption, exercise, gut microbiota, and physical health.

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