scholarly journals Effects of Leucine-Enriched Whey Protein Supplementation on Physical Function in Post-Hospitalized Older Adults Participating in 12-Weeks of Resistance Training Program: A Randomized Controlled Trial

Nutrients ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2337 ◽  
Author(s):  
Maria Amasene ◽  
Ariadna Besga ◽  
Iñaki Echeverria ◽  
Miriam Urquiza ◽  
Jonatan R. Ruiz ◽  
...  
Keyword(s):  
Resistance Training ◽  
Physical Function ◽  
Whey Protein ◽  
Muscle Mass ◽  
Elderly Population ◽  
Mini Nutritional Assessment ◽  
Protein Supplementation ◽  
Protein Supplement ◽  
Resistance Training Program ◽  
Hospitalized Elderly

Age-related strength and muscle mass loss is further increased after acute periods of inactivity. To avoid this, resistance training has been proposed as an effective countermeasure, but the additional effect of a protein supplement is not so clear. The aim of this study was to examine the effect of a whey protein supplement enriched with leucine after resistance training on muscle mass and strength gains in a post-hospitalized elderly population. A total of 28 participants were included and allocated to either protein supplementation or placebo supplementation following resistance training for 12 weeks (2 days/week). Physical function (lower and upper body strength, aerobic capacity and the Short Physical Performance Battery (SPPB) test), mini nutritional assessment (MNA) and body composition (Dual X-ray Absorptiometry) were assessed at baseline and after 12 weeks of resistance training. Both groups showed improvements in physical function after the intervention (p < 0.01), but there were no further effects for the protein group (p > 0.05). Muscle mass did not improve after resistance training in either group (p > 0.05). In conclusion, 12 weeks of resistance training are enough to improve physical function in a post-hospitalized elderly population with no further benefits for the protein-supplemented group.

scholarly journals Two-Year Whey Protein Supplementation Did Not Enhance Muscle Mass and Physical Function in Well-Nourished Healthy Older Postmenopausal Women

2015 ◽  
Vol 145 (11) ◽  
pp. 2520-2526 ◽  
Author(s):  
Kun Zhu ◽  
Deborah A Kerr ◽  
Xingqiong Meng ◽  
Amanda Devine ◽  
Vicky Solah ◽  
...  
Keyword(s):  
Physical Function ◽  
Postmenopausal Women ◽  
Whey Protein ◽  
Muscle Mass ◽  
Protein Supplementation

Impact of protein supplementation on lean muscle mass in adult survivors of childhood cancer engaged in resistance training.

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 10027-10027
Author(s):  
Matthew R Krull ◽  
Carrie R. Howell ◽  
Robyn Partin, MS ◽  
Ginger Carney ◽  
Daniel A. Mulrooney ◽  
...  
Keyword(s):  
Resistance Training ◽  
Muscle Strength ◽  
Childhood Cancer ◽  
Training Program ◽  
Muscle Mass ◽  
Adult Survivors ◽  
Protein Supplementation ◽  
Resistance Training Program ◽  
Lean Muscle Mass ◽  
Survivors Of Childhood Cancer

10027 Background: Muscle weakness, low lean muscle mass and poor physical performance are prevalent among adult survivors of childhood cancer. We evaluated the effects of resistance training with and without protein supplementation on lean muscle mass, and muscle strength among childhood cancer survivors. Methods: This double-blind placebo-controlled trial enrolled survivors aged ≥18 to < 45 years. Participants were randomized to resistance training with daily protein supplement (21g protein/day, 90kcal) (RT+S) or resistance training with placebo (sucrose, 90kcal) (RT+P). Both groups received educational materials, access to a local fitness center and a tailored resistance training program with tapered supervision. Lean muscle mass and muscle strength were assessed at baseline and 24 weeks, using dual x-ray absorptiometry and dynamometer testing respectively. Mean changes were compared within and between groups. Results: Of 93 participants randomized, 57 completed the 24-week intervention (24 in RT+S, 33 in RT+P). The mean age was 33.1 (SD 7.0), 67% were white and 47% female. The RT+S group had a significant increase in lean body mass (1.05 kg [SD 2.34], p = 0.04), while the RT+P group did not (0.13 kg [SD 2.19], p = 0.74). Mean change in handgrip strength also improved in the RT+S group (1.98 [SD 4.30], p = 0.03); change approached significance in the RT+P group (1.49 [SD 4.60], p = 0.07). All survivors significantly improved their strength over time (Table) as measured by one max repetition test at baseline and follow-up. Conclusions: Preliminary findings indicate that a supervised resistance training program among adult survivors of childhood cancer that includes protein supplementation is feasible and may increase total lean body mass and muscle strength. Clinical trial information: NCT02501460. [Table: see text]

Effects of Whey Protein Supplementation Associated With Resistance Training on Muscular Strength, Hypertrophy, and Muscle Quality in Preconditioned Older Women

2018 ◽  
Vol 28 (5) ◽  
pp. 528-535 ◽  
Author(s):  
Paulo Sugihara Junior ◽  
Alex S. Ribeiro ◽  
Hellen C.G. Nabuco ◽  
Rodrigo R. Fernandes ◽  
Crisieli M. Tomeleri ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Resistance Training ◽  
Older Women ◽  
Whey Protein ◽  
Muscle Mass ◽  
Muscular Strength ◽  
Skeletal Muscle Mass ◽  
Protein Supplementation ◽  
Muscle Quality ◽  
Total Strength

The purpose of this study was to investigate the effect of whey protein (WP) supplementation on muscular strength, hypertrophy, and muscular quality in older women preconditioned to resistance training (RT). In a randomized, double-blind, and placebo (PLA)-controlled design, 31 older women (67.4 ± 4.0 years, 62.0 ± 6.9 kg, 155.9 ± 5.7 cm, and 25.5 ± 2.4 kg/m2) received either 35 g of WP (n = 15) or 35 g of PLA (n = 16) over a 12-week study period while performing an RT program three times a week. Dietary intake, one-repetition maximum test, and skeletal muscle mass by dual-energy X-ray absorptiometry were assessed before and after the intervention period. Both groups showed significant (p < .05) improvements in skeletal muscle mass and total strength, and the WP group realized greater increases (p < .05) in these measures compared with PLA (skeletal muscle mass: WP = +4.8% vs. PLA = +2.3%; strength: WP = +8.7% vs. PLA = +4.9%). Muscular quality increased (p < .05) in both groups (WP = +2.9% vs. PLA = +1.5%) without statistical differences (p > .05) noted between conditions. We conclude that WP supplementation in combination with RT induces higher increases in both strength and hypertrophy in older women preconditioned to RT.

scholarly journals Resistance Training Improves Muscle Strength and Function, Regardless of Protein Supplementation, in the Mid- to Long-Term Period after Gastric Bypass

Nutrients ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 14
Author(s):  
Gabriela S. Oliveira ◽  
Flávio T. Vieira ◽  
Fernando Lamarca ◽  
Ricardo M. Lima ◽  
Kênia M. B. Carvalho ◽  
...  
Keyword(s):  
Gastric Bypass ◽  
Resistance Training ◽  
Muscle Strength ◽  
Whey Protein ◽  
Controlled Trial ◽  
Peak Torque ◽  
Protein Supplementation ◽  
Placebo Control ◽  
Resistance Training Program

Inadequate protein intake and low levels of physical activity are common long-term sequelae after bariatric surgery and can negatively affect muscle strength (MS) and physical function (PF). The study investigated the effects of resistance training with or without protein supplementation on MS and PF. The study, which involved a 12-week controlled trial (n = 61) of individuals 2–7 years post-Roux-en-Y gastric bypass (RYGB), comprised four groups: whey protein supplementation (PRO; n = 18), maltodextrin placebo (control [CON]; n = 17), resistance training combined with placebo (RTP; n = 11), and resistance training combined with whey protein supplementation (RTP+PRO; n = 15). An isokinetic dynamometer was used to measure MS (peak torque at 60°/s and 180°/s). PF was measured with the 30-s sit-to-stand (30-STS), 6-min walk (6-MWT), and timed up-and-go (TUG) tests. There were improvements in the absolute and relative-to-bodyweight peak torque at 60°/s and 180°/s, TUG, 6-MWT and 30-STS in the RTP and RTP+PRO groups, but not in the CON and PRO groups. Changes in MS were significantly correlated with changes in PF between the pre- and post-intervention periods. A supervised resistance training program, regardless of protein supplementation, improved MS and PF in the mid-to-long-term period after RYGB and can lead to clinical benefits and improved quality of life.

Whey protein and vitamin D supplementation in institutionalized older adults: A randomized trial

2021 ◽  
pp. 026010602110606
Author(s):  
Tamy Colonetti ◽  
Antônio Jose Grande ◽  
Franciani Rodrigues da Rocha ◽  
Eduardo Ronconi Dondossola ◽  
Lisiane Tuon ◽  
...  
Keyword(s):  
Older Adults ◽  
Vitamin D ◽  
Body Composition ◽  
Resistance Training ◽  
Whey Protein ◽  
Muscle Mass ◽  
Lean Mass ◽  
Vitamin D Supplementation ◽  
Relative Index ◽  
And Control

Background: The increase in life expectancy and in the number of individuals over 60 years old brings new demands to health professionals and services based on the physiological changes that occur in this population. The aging process results in changes in body composition, increasing body fat and reducing muscle mass, in addition to a reduction in bone mass. Aim: The aim of this study was to examine the effect of whey protein and vitamin D supplementation on body composition and skeletal muscle in older adults living in long-term care facilities. Methods: This study is a double-blind randomized controlled trial. Thirty older adults (>60 years old) were randomized and allocated in three groups: group receiving resistance training and supplementation receiving resistance training, whey protein and vitamin D; group received resistance and placebo training receiving resistance training and placebo, and control group without any intervention. Body composition was measured by dual-energy X-ray absorptiometry at baseline, 12 weeks, and 24 weeks. Results: The mean age was 74.87 (± 8.14) years. A significant difference ( p = 0.042) was observed between the group receiving resistance training and supplementation and control groups in relation to lean mass increase (kg) at 24 weeks. After 24 weeks of intervention, there was a significant increase in Relative index of muscle mass for the two groups that underwent resistance training, group received resistance and placebo training ( p = 0.042) and group receiving resistance training and supplementation ( p = 0.045), in relation to the control. Conclusion: Combined supplementation of whey protein and vitamin D with resistance training can significantly improve lean mass, total mass, and relative index of muscle mass in institutionalized older adults.

scholarly journals Effects of Milk Protein in Resistance Training-Induced Lean Mass Gains for Older Adults Aged ≥ 60 y: A Systematic Review and Meta-Analysis

Nutrients ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 2815
Author(s):  
Ling-Pi Huang ◽  
Giancarlo Condello ◽  
Chia-Hua Kuo
Keyword(s):  
Older Adults ◽  
Resistance Training ◽  
Muscle Strength ◽  
Whey Protein ◽  
Milk Protein ◽  
Dose Range ◽  
Protein Supplementation ◽  
Fat Free Mass ◽  
Qualitative Synthesis ◽  
Eligibility Criteria

This review evaluated the effects of milk-based protein supplementation on resistance training (RT)-induced gains in lean body mass or fat free mass (LBM/FFM) and muscle strength for older adults. A systematic search of PubMed, Scopus and EBSCOhost/SPORTDiscus was conducted. Eligibility criteria: Randomized controlled trials comparing all types of milk-based protein supplements with control supplements for the training older adults at mean age ≥ 60 y. Twenty studies were included in the qualitative synthesis, whilst seventeen studies were included in the quantitative synthesis. A dose of 10–15 g of milk protein supplementation was sufficient to augment RT-induced LBM/FFM. Intriguingly, four out of five studies show negative effect of whey protein supplementation at the same dose range (or even higher) compared with control supplementation (−0.49 kg, 95% CI: −0.69, −0.29, I2 = 14%, Z = 4.82, p < 0.001). For milk-based protein supplementation, RT-induced improvements in muscle strength were observed only when the protein doses ≥22 g (+0.66 kg, 95% CI: 0.07, 1.25, I2 = 0%, Z = 2.18, p = 0.03). Conclusion: Milk protein is superior to whey protein in enhancing RT-induced LBM/FFM gains for older adults. Optimal daily protein intake can dilute the protein supplementation effect.

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