scholarly journals Alcohol Consumption Reduces the Beneficial Influence of Protein Intake on Muscle Mass in Middle-Aged Korean Adults: A 12-Year Community-Based Prospective Cohort Study

Nutrients ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 2143
Author(s):  
Eunjin So ◽  
Hyojee Joung
Keyword(s):  
Skeletal Muscle ◽  
Alcohol Consumption ◽  
Muscle Mass ◽  
Protein Intake ◽  
Skeletal Muscle Mass ◽  
Reference Group ◽  
High Protein ◽  
Study Endpoint ◽  
Middle Aged ◽  
High Protein Intake

The influence of alcohol consumption on the association of protein intake with muscle mass was assessed using data from the Korean Genome and Epidemiology Study. Dietary protein intakes of 4412 middle-aged participants with normal baseline muscle mass were assessed using a semi-quantitative Food Frequency Questionnaire, and baseline alcohol consumption data (e.g., frequency and amount) were collected using a structured questionnaire. The skeletal muscle mass index (SMI), defined as the weight-adjusted skeletal muscle mass, was measured using multi-frequency bioelectrical impedance analyses every 2 years until the study endpoint. Low muscle mass was defined as a SMI <2 standard deviations below the sex-specific normal mean for a young reference group. During a 12-year follow-up, 395 subjects developed a low SMI. After multivariate adjustments, high protein intake (≥1.2 g/kg body weight (BW)) was shown to reduce the risk of low SMI development in both men (hazard ratio (HR): 0.24; 95% confidence interval (CI): 0.12, 0.51; p for trend < 0.001) and women (HR: 0.29; 95% CI: 0.16, 0.53; p for trend < 0.001), compared with low protein intake (<0.8 g/kg BW). Alcohol consumption attenuated the protective influence of protein intake against low SMI development in women (HR: 0.64; 95% CI: 0.18, 2.25; p for trend = 0.478). Among the total subjects, heavy drinkers with high protein intake were not significantly associated with the development of a low SMI (HR: 0.20; 95% CI: 0.03, 1.50; p = 0.117). Additional research should clarify the dose-response effects of alcohol consumption on muscle mass relative to daily protein intake.

Effects of higher habitual protein intake on resistance-training-induced changes in body composition and muscular strength in untrained older women: A clinical trial study

2019 ◽  
Vol 25 (2) ◽  
pp. 103-112 ◽  
Author(s):  
Hellen CG Nabuco ◽  
Crisieli M Tomeleri ◽  
Paulo Sugihara Junior ◽  
Rodrigo R Fernandes ◽  
Edilaine F Cavalcante ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Body Composition ◽  
Older Women ◽  
Muscle Mass ◽  
Protein Intake ◽  
Muscular Strength ◽  
Skeletal Muscle Mass ◽  
High Protein ◽  
High Protein Intake ◽  
Induced Changes

Background: Aging is accompanied by progressive and accentuated decline in muscular strength and skeletal muscle mass, affecting health and functional autonomy. Both resistance training (RT) and diet are strategies that may contribute to improvement in the health of the elderly. Aim: The purpose of this study was to evaluate the effects of higher habitual protein intake on RT-induced changes in body composition and strength in untrained postmenopausal women. Methods: Seventy older women were submitted to an RT program. Body composition, muscular strength, and dietary intake (24 h dietary recall) were performed pre- and post-intervention. To verify different intervention effects according to protein intake of the participants, the sample was separated into tertiles according to protein intake: low, moderate, and high protein intake. Results: A time vs. group interaction ( p < 0.05) was observed, with high protein intake presenting greater increases compared with low protein intake, for skeletal muscle mass (5.3% vs. 1.3%), lower limb lean soft tissue (4.9% vs. 1.4%), upper lean soft tissue (4.9% vs. 1.2%), preacher curl (24% vs. 15.2%), and total strength (16.4% vs. 11.7%). A time vs. group interaction ( p < 0.05) was observed, with high protein intake presenting greater increases compared with moderate protein intake, for skeletal muscle mass (5.3% vs. 3.2%). In all groups, a main effect of time ( p < 0.05) was observed for knee extension and chest press. Conclusions: We conclude that intake of >1.0 g/kg/day of protein promotes gains in skeletal muscle mass and muscular strength after RT in untrained older women.

scholarly journals Effect of Dairy Protein Intake on Muscle Mass among Korean Adults: A Prospective Cohort Study

Nutrients ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2537
Author(s):  
Eunjin So ◽  
Hyojee Joung
Keyword(s):  
Skeletal Muscle ◽  
Cohort Study ◽  
Muscle Mass ◽  
Protein Intake ◽  
Skeletal Muscle Mass ◽  
Cox Proportional Hazards ◽  
Middle Aged ◽  
Dairy Consumption ◽  
Dairy Protein

This cohort study aimed to identify the associations of dairy protein intake with the risk of developing a low muscle mass during a 12-year follow-up period, using data from 4412 middle-aged Korean Genome and Epidemiology Study participants with a normal baseline muscle mass. Dairy protein intake at baseline was assessed using a semi-quantitative Food Frequency Questionnaire. Skeletal muscle mass index (SMI), defined as the weight-adjusted skeletal muscle mass, was measured biennially using multi-frequency bioelectrical impedance analyses. Cox proportional hazards regression analysis was used to calculate multivariable-adjusted hazard ratios (HRs) and 95% confidence intervals (CIs). Overall, 395 subjects developed a low SMI (%) during an average follow-up of 141 (19–152) months. The average consumption of milk and other dairy products was 73.6 and 104.1 g/day, respectively. In men, a higher dairy protein intake was associated with a decreased risk of developing a low SMI (tertile 3 [T3] vs. T1, HR: 0.63; 95% CI: 0.42, 0.94; p for trend = 0.029). In a stratified analysis according to a total protein intake, this association was stronger in the lower-protein intake group (HR: 0.59; 95% CI: 0.35, 0.99; p for trend = 0.036) but not detected in the higher-protein intake group. Men who consumed milk ≥1 time/day had a significantly lower risk of developing a low SMI (HR: 0.62; 95% CI: 0.39, 0.98; p for trend = 0.023). No significant associations were observed in women. In summary, dairy consumption appears to be beneficial for decreasing the risk of developing a low muscle mass in middle-aged Korean men.

771-P: Protein Intake at Breakfast Contributes to Maintenance of Skeletal Muscle Mass in Japanese Elderly Patients with Type 2 Diabetes

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 771-P
Author(s):  
SODAI KUBOTA ◽  
HITOSHI KUWATA ◽  
SAKI OKAMOTO ◽  
DAISUKE YABE ◽  
KENTA MUROTANI ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Skeletal Muscle ◽  
Elderly Patients ◽  
Muscle Mass ◽  
Protein Intake ◽  
Skeletal Muscle Mass ◽  
P Protein ◽  
Japanese Elderly

scholarly journals Gender-Specific Associations between Low Skeletal Muscle Mass and Albuminuria in the Middle-Aged and Elderly Population

2017 ◽  
Vol 14 (11) ◽  
pp. 1054-1064 ◽  
Author(s):  
Hye Eun Yoon ◽  
Yunju Nam ◽  
Eunjin Kang ◽  
Hyeon Seok Hwang ◽  
Seok Joon Shin ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Elderly Population ◽  
Middle Aged ◽  
Gender Specific

scholarly journals Early high protein intake and mortality in critically ill ICU patients with low skeletal muscle area and -density

2020 ◽  
Vol 39 (7) ◽  
pp. 2192-2201 ◽  
Author(s):  
Wilhelmus G.P.M. Looijaard ◽  
Ingeborg M. Dekker ◽  
Albertus Beishuizen ◽  
Armand R.J. Girbes ◽  
Heleen M. Oudemans-van Straaten ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Critically Ill ◽  
Protein Intake ◽  
High Protein ◽  
Muscle Area ◽  
Icu Patients ◽  
High Protein Intake ◽  
Skeletal Muscle Area

scholarly journals Protein intake per day and at each daily meal and skeletal muscle mass declines among older community dwellers in Japan

2019 ◽  
Vol 23 (6) ◽  
pp. 1090-1097 ◽  
Author(s):  
Rei Otsuka ◽  
Yuki Kato ◽  
Chikako Tange ◽  
Yukiko Nishita ◽  
Makiko Tomida ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Total Protein ◽  
Protein Intake ◽  
Skeletal Muscle Mass ◽  
Total Protein Intake ◽  
Dietary Records ◽  
Logistic Modelling ◽  
Community Dwellers

AbstractObjective:To examine associations between protein intake per day and at different meals and skeletal muscle mass declines.Design:Two-year prospective cohort study among older community dwellers.Setting:National Institute for Longevity Sciences–Longitudinal Study of Aging (NILS-LSA) in Japan.Participants:Older men (n 292) and women (n 363) aged 60–87 years who participated in the baseline (2006–2008) and follow-up studies (2008–2010) of NILS-LSA and did not exhibit low skeletal muscle mass at baseline. Muscle mass was assessed using dual-energy X-ray absorptiometry at baseline and follow-up. Low muscle mass was defined as skeletal muscle mass index <7·0 kg/m2 for men and <5·4 kg/m2 for women at follow-up. Daily protein intake and protein intake at each meal were calculated from 3 d dietary records at baseline and sex-stratified tertiles were determined.Results:Mean (sd) protein intake at breakfast, lunch and dinner was 22·7 (7·8), 26·7 (9·3) and 37·4 (10·5) g for men and 19·3 (6·3), 23·2 (7·3) and 28·5 (7·0) g for women, respectively. After adjusting for age, baseline skeletal muscle mass and other confounders in logistic modelling, greater total protein intake was associated with lower prevalence of skeletal muscle mass decline among men at follow-up (P = 0·024). Particularly, the OR (95 % CI) for high lunchtime protein intake was low (0·11 (0·02, 0·61); P = 0·01). No significant association between total protein intake and prevalence of skeletal muscle mass decline was found among women.Conclusions:High total protein intake, particularly at lunchtime, is associated with retention of skeletal muscle mass in men.

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