scholarly journals Effect of resistance training exercise combined with high protein diet on body weight and muscle mass in underweight adolescent males

2021 ◽  
Vol 27 (1) ◽  
pp. 041-052
Author(s):  
Wittawas Sajjapong ◽  
◽  
Preeya Leelahagul ◽  
Sitha Pongphibool ◽  
Narupon Thongsuk ◽  
...  
Keyword(s):  
Body Weight ◽  
Resistance Training ◽  
Protein Intake ◽  
High Protein Diet ◽  
High Protein ◽  
Protein Diet ◽  
Protein Supplements ◽  
High Protein Intake ◽  
Training Exercise ◽  
Resistance Training Exercise

Introduction: Many underweight males take commercial protein supplements to increase their body weight and build muscle. Nonetheless, commercial protein supplements may cause adverse effects. This study aimed to determine the effects of resistance training exercise combined with a high protein diet on body weight and muscle mass in underweight adolescent males. Methods: A repeated measures design study was conducted on nine males aged 12-15 years with low body weight. Energy and protein requirements were calculated, and energy and protein consumptions were measured for each meal during the high protein diet without exercise (HP) period and the high protein diet with resistance exercise (HPE) period. Subjects engaged in three resistance training sessions each week during HP-E period, for eight weeks. Dietary intake, body composition, blood biochemistry, physical fitness, and self-esteem were assessed. Results: In HP-E period, resistance training exercise combined with a high protein intake (2.14 g/kg/d) increased body weight and lean tissue mass (LTM) by 0.5 kg and 0.5 kg, respectively. Resistance training during HP-E period increased arm, leg, and trunk muscle strength by 20.2%, 7.2%, and 14.5%, respectively, more than high protein diet alone during HP period. High protein intake in HP-E period did not affect blood urea nitrogen (BUN) and creatinine levels (11.0 mg/dL and 0.70 mg/dL, respectively). Conclusion: Eight weeks of resistance training combined with a high protein diet increased body weight and LTM without adverse effects. In particular, resistance exercise predominantly increased muscle strength. Kidney function was not affected by high protein consumption throughout this study.

scholarly journals The PROMOTE study (High-protein and resistance-training combination in overweight and obesity) for short-term weight loss and long-term weight maintenance for Chinese people: a protocol for a pilot randomized controlled trial

Trials ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Shaoyong Xu ◽  
Juan Zhang ◽  
Yuxiang Dong ◽  
Ruikun Chen ◽  
Wenlei Xu ◽  
...  
Keyword(s):  
Weight Loss ◽  
Resistance Training ◽  
Controlled Trial ◽  
Weight Maintenance ◽  
High Protein Diet ◽  
Diet Group ◽  
High Protein ◽  
Protein Diet ◽  
Short Term ◽  
Low Fat Diet

Abstract Background It is very important for clinicians and dieticians to explore reasonable weight management strategies for obese people that address both short-term weight loss and subsequent weight maintenance. We hypothesized that resistance training combined with a high-protein diet would result in similar short-term weight loss but better long-term weight maintenance than either a conventional low-fat diet control or a high-protein diet alone. Methods/design This is an 8-week randomized parallel controlled trial followed by a 24-week observational follow-up study. A 48-week supplementary follow-up study will be carried out if necessary. The study will be conducted between June 2019 and October 2020. The 90 overweight or obese participants will be randomly assigned to the conventional low-fat diet group, the high-protein diet group and the high-protein diet and resistance training combination group. Primary outcomes are body weight change at week 8 and week 24 compared with the baseline level. Discussion High-quality research on the effect of a high-protein diet combined resistance training on weight loss and weight maintenance is limited in the Chinese population. Our study will provide a basis for obesity management in China and will promote the development of exercise- and diet-related studies. Trial registration Chinese Clinical Trial Registry, ChiCTR1900023841. Registered on 14 June 2019.

scholarly journals Protein intake and outcome of critically ill patients: analysis of a large international database using piece-wise exponential additive mixed models

Critical Care ◽  
2022 ◽  
Vol 26 (1) ◽  
Author(s):  
Wolfgang H. Hartl ◽  
Philipp Kopper ◽  
Andreas Bender ◽  
Fabian Scheipl ◽  
Andrew G. Day ◽  
...  
Keyword(s):  
Hospital Discharge ◽  
Critically Ill ◽  
Acute Phase ◽  
Critically Ill Patients ◽  
Protein Intake ◽  
High Protein ◽  
Protein Diet ◽  
High Protein Intake ◽  
Low Protein ◽  
Standard Protein

Abstract Background Proteins are an essential part of medical nutrition therapy in critically ill patients. Guidelines almost universally recommend a high protein intake without robust evidence supporting its use. Methods Using a large international database, we modelled associations between the hazard rate of in-hospital death and live hospital discharge (competing risks) and three categories of protein intake (low: < 0.8 g/kg per day, standard: 0.8–1.2 g/kg per day, high: > 1.2 g/kg per day) during the first 11 days after ICU admission (acute phase). Time-varying cause-specific hazard ratios (HR) were calculated from piece-wise exponential additive mixed models. We used the estimated model to compare five different hypothetical protein diets (an exclusively low protein diet, a standard protein diet administered early (day 1 to 4) or late (day 5 to 11) after ICU admission, and an early or late high protein diet). Results Of 21,100 critically ill patients in the database, 16,489 fulfilled inclusion criteria for the analysis. By day 60, 11,360 (68.9%) patients had been discharged from hospital, 4,192 patients (25.4%) had died in hospital, and 937 patients (5.7%) were still hospitalized. Median daily low protein intake was 0.49 g/kg [IQR 0.27–0.66], standard intake 0.99 g/kg [IQR 0.89– 1.09], and high intake 1.41 g/kg [IQR 1.29–1.60]. In comparison with an exclusively low protein diet, a late standard protein diet was associated with a lower hazard of in-hospital death: minimum 0.75 (95% CI 0.64, 0.87), and a higher hazard of live hospital discharge: maximum HR 1.98 (95% CI 1.72, 2.28). Results on hospital discharge, however, were qualitatively changed by a sensitivity analysis. There was no evidence that an early standard or a high protein intake during the acute phase was associated with a further improvement of outcome. Conclusions Provision of a standard protein intake during the late acute phase may improve outcome compared to an exclusively low protein diet. In unselected critically ill patients, clinical outcome may not be improved by a high protein intake during the acute phase. Study registration ID number ISRCTN17829198

scholarly journals Efficacy and consequences of very-high-protein diets for athletes and exercisers

2011 ◽  
Vol 70 (2) ◽  
pp. 205-214 ◽  
Author(s):  
Kevin D. Tipton
Keyword(s):  
Protein Intake ◽  
High Protein Diet ◽  
Kidney Damage ◽  
High Protein ◽  
Absolute Amount ◽  
Negative Consequences ◽  
High Protein Intake ◽  
High Protein Diets ◽  
Protein Diets ◽  
Very High

Athletes and exercisers have utilised high-protein diets for centuries. The objective of this review is to examine the evidence for the efficacy and potential dangers of high-protein diets. One important factor to consider is the definition of a ‘high-protein diet’. There are several ways to consider protein content of a diet. The composition of the diet can be determined as the absolute amount of the protein (or other nutrient of interest), the % of total energy (calories) as protein and the amount of protein ingested per kg of body weight. Many athletes consume very high amounts of protein. High-protein diets most often are associated with muscle hypertrophy and strength, but now also are advocated for weight loss and recovery from intense exercise or injuries. Prolonged intake of a large amount of protein has been associated with potential dangers, such as bone mineral loss and kidney damage. In otherwise healthy individuals, there is little evidence that high protein intake is dangerous. However, kidney damage may be an issue for individuals with already existing kidney dysfunction. Increased protein intake necessarily means that overall energy intake must increase or consumption of either carbohydrate or fat must decrease. In conclusion, high protein intake may be appropriate for some athletes, but there are potential negative consequences that must be carefully considered before adopting such a diet. In particular, care must be taken to ensure that there is sufficient intake of other nutrients to support the training load.

Effect of administration of high-protein diet in rats submitted to resistance training

2017 ◽  
Vol 57 (3) ◽  
pp. 1083-1096 ◽  
Author(s):  
Thiago da Rosa Lima ◽  
Eudes Thiago Pereira Ávila ◽  
Géssica Alves Fraga ◽  
Mariana de Souza Sena ◽  
Arlyson Batista de Souza Dias ◽  
...  
Keyword(s):  
Resistance Training ◽  
High Protein Diet ◽  
High Protein ◽  
Protein Diet

The effect of plane of nutrition on the body composition of two breeds of wearier sheep fed a high protein diet

1982 ◽  
Vol 98 (2) ◽  
pp. 241-245 ◽  
Author(s):  
T. W. Searle ◽  
N. McC. Graham ◽  
J. B. Donnelly
Keyword(s):  
Body Weight ◽  
Live Weight ◽  
High Protein Diet ◽  
The Body ◽  
High Protein ◽  
The Other ◽  
Protein Diet ◽  
Castrate Male ◽  
Body Component ◽  
The Relationship

SUMMARYCorriedale and Dorset Horn castrate male (wether) lambs reared at pasture were weaned at 19 kg live weight (LW), brought indoors and fed a high protein diet such that half of each group grew at ca. 200 g/day and the other half at ca. 100 g/day. Animals were slaughtered at 25 and 30 kg LW and chemical composition (protein, fat, energy, water and ash) of the body determined. The relationship between each body component and shorn empty-body weight was examined by regression analysis.Within levels of feeding the results were similar in the two breeds. When comparisons were made between feeding levels, the slower-growing animals contained more fat, energy and ash than the faster-growing group, less water, but similar amounts of protein at any given empty-body weight.

scholarly journals The effects of a combination of high-protein diet and resistance training on short-term weight loss and long-term weight maintenance in overweight and obese Chinese people: a study protocol

2019 ◽  
Author(s):  
Xu Shaoyong ◽  
Juan Zhang ◽  
Yuxiang Dong ◽  
Ruikun Chen ◽  
Wenlei Xu ◽  
...  
Keyword(s):  
Weight Loss ◽  
Resistance Training ◽  
Weight Maintenance ◽  
High Protein Diet ◽  
Diet Group ◽  
High Protein ◽  
Protein Diet ◽  
Short Term ◽  
Low Fat Diet

Abstract Background It is very important for clinicians and dieticians to explore reasonable weight management strategies for obese people that address both short-term weight loss and subsequent weight maintenance. We hypothesized that resistance training combined with a high-protein diet would result in similar short-term weight loss but better long-term weight maintenance than either conventional low-fat diet control or high-protein diet alone.Methods/design This is an 8-week randomized parallel controlled trial followed by a 24-week observational follow-up study. A 48-week supplementary follow-up study will be carried out if necessary. The study will be conducted between June 2019 and October 2020. The 90 overweight or obese participants will be randomly assigned to the conventional low-fat diet group, the high-protein diet group and the high-protein diet and resistance training combination group. Primary outcomes are body weight changes at week 8 and week 24 compared with the baseline level.Discussion High-quality research on the effect of a high-protein diet combined resistance training on weight loss and weight maintenance is limited in Chinese population. Our study will provide a basis for obesity management in China, and promote the development of exercise and diet-related studies.Trials registration ChiCTR1900023841, 14 June 2019

scholarly journals Dietary Protein Intake Level Modulates Mucosal Healing and Mucosa-Adherent Microbiota in Mouse Model of Colitis

Nutrients ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 514 ◽  
Author(s):  
Sandra Vidal-Lletjós ◽  
Mireille Andriamihaja ◽  
Anne Blais ◽  
Marta Grauso ◽  
Patricia Lepage ◽  
...  
Keyword(s):  
Dietary Protein ◽  
Protein Intake ◽  
High Protein Diet ◽  
Repair Process ◽  
Mucosal Healing ◽  
High Protein ◽  
Protein Diet ◽  
Dietary Protein Intake ◽  
Epithelial Repair ◽  
The Impact

Mucosal healing after an inflammatory flare is associated with lasting clinical remission. The aim of the present work was to evaluate the impact of the amount of dietary protein on epithelial repair after an acute inflammatory episode. C57BL/6 DSS-treated mice received isocaloric diets with different levels of dietary protein: 14% (P14), 30% (P30) and 53% (P53) for 3 (day 10), 6 (day 13) and 21 (day 28) days after the time of colitis maximal intensity. While the P53 diet worsened the DSS- induced inflammation both in intensity and duration, the P30 diet, when compared to the P14 diet, showed a beneficial effect during the epithelial repair process by accelerating inflammation resolution, reducing colonic permeability and increasing epithelial repair together with epithelial hyperproliferation. Dietary protein intake also impacted mucosa-adherent microbiota composition after inflammation since P30 fed mice showed increased colonization of butyrate-producing genera throughout the resolution phase. This study revealed that in our colitis model, the amount of protein in the diet modulated mucosal healing, with beneficial effects of a moderately high-protein diet, while very high-protein diet displayed deleterious effects on this process.

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