Evaluating the Effects of Increased Protein Intake on Muscle Strength, Hypertrophy and Power Adaptations with Concurrent Training: A Narrative Review

2021 ◽  
Author(s):  
Donny M. Camera
Keyword(s):  
Muscle Strength ◽  
Protein Intake ◽  
Narrative Review ◽  
Concurrent Training

scholarly journals Assessment of Physical Fitness after Bariatric Surgery and Its Association with Protein Intake and Type of Cholecalciferol Supplementation

Medicina ◽  
2019 ◽  
Vol 55 (6) ◽  
pp. 281 ◽  
Author(s):  
Smelt ◽  
Pouwels ◽  
Celik ◽  
Gupta ◽  
Smulders
Keyword(s):  
Bariatric Surgery ◽  
Muscle Strength ◽  
Physical Fitness ◽  
Protein Intake ◽  
Handgrip Strength ◽  
High Dose ◽  
Group A ◽  
Cholecalciferol Supplementation ◽  
Group B ◽  
Run Test

: Background: Several studies showed that there is a relationship between vitamin and mineral status and muscle strength. In particular this is the case for handgrip strength (HS) and vitamin D deficiency. In bariatric surgery there is a risk of decrease in muscle strength after surgery and also vitamin and mineral deficiencies are not uncommon. The aim of this study is to assess the effect of low vitamin 25 (OH) cholecalciferol levels, high dose cholecalciferol supplementation regime and protein intake on physical fitness, measured using handgrip strength (HS) and the shuttle walk run test (SWRT). Methods: For this retrospective study, 100 patients who have had bariatric surgery were included. Group A (n = 50) used 800 IU oral cholecalciferol per day. Group B (n = 50) used 800 IU oral cholecalciferol daily and 50,000 IU liquid cholecalciferol monthly lifelong. Both groups were matched on common variables. To measure physical fitness, we used the HS manometer of Jamar and the Shuttle Walk Run Test (SWRT) to assess physical capacity. Results: No significant differences in HS and SWRT outcomes were found between patients with serum 25 (OH) cholecalciferol < 75 nmol/L or >75 nmol/L. The postoperative HS is significantly influenced by protein intake (p = 0.017) and no significant influence was seen in outcomes of the SWRT (p = 0.447). Conclusion: We have found that serum 25 (OH) cholecalciferol and different cholecalciferol supplementation regimes do not have a significant effect on HS and SWRT before, three and 6 months after surgery. It seems that protein intake plays a more important role in maintaining adequate muscle strength.

scholarly journals Does Beef Protein Supplementation Improve Body Composition and Exercise Performance? A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Nutrients ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 1429 ◽  
Author(s):  
Pedro L. Valenzuela ◽  
Fernando Mata ◽  
Javier S. Morales ◽  
Adrián Castillo-García ◽  
Alejandro Lucia
Keyword(s):  
Body Composition ◽  
Muscle Strength ◽  
Exercise Performance ◽  
Protein Intake ◽  
Meta Analysis ◽  
Protein Supplementation ◽  
Limb Muscle ◽  
Randomized Controlled ◽  
Total Protein Intake ◽  
Improve Body Composition

Protein supplementation might improve body composition and exercise performance. Supplements containing whey protein (WP) have received the most attention, but other protein sources such as beef protein (BP) are gaining popularity. We conducted a systematic review and meta-analysis of randomized controlled trials that compared the effects of exercise training combined with BP, WP or no protein supplementation (NP), on body composition or exercise performance. Secondary endpoints included intervention effects on total protein intake and hematological parameters. Seven studies (n = 270 participants) were included. No differences were found between BP and WP for total protein intake (standardized mean difference (SMD) = 0.04, p = 0.892), lean body mass (LBM) (SMD = −0.01, p = 0.970) or fat mass (SMD = 0.07, p = 0.760). BP significantly increased total daily protein intake (SMD = 0.68, p < 0.001), LBM (SMD = 0.34, p = 0.049) and lower-limb muscle strength (SMD = 0.40, p = 0.014) compared to NP, but no significant differences were found between both conditions for fat mass (SMD = 0.15, p = 0.256), upper-limb muscle strength (SMD = 0.16, p = 0.536) or total iron intake (SMD = 0.29, p = 0.089). In summary, BP provides similar effects to WP on protein intake and body composition and, compared to NP, might be an effective intervention to increase total daily protein intake, LBM and lower-limb muscle strength.

The relationship between muscle strength and dietary protein intake and bone health

Bone ◽  
2010 ◽  
Vol 47 ◽  
pp. S211
Author(s):  
C.S. McDonald ◽  
G.C. Chan ◽  
N.P. Kennedy ◽  
Z. Toth ◽  
J.B. Walsh ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Bone Health ◽  
Dietary Protein ◽  
Protein Intake ◽  
Dietary Protein Intake ◽  
The Relationship

scholarly journals Pre- versus post-exercise protein intake has similar effects on muscular adaptations

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e2825 ◽  
Author(s):  
Brad Jon Schoenfeld ◽  
Alan Aragon ◽  
Colin Wilborn ◽  
Stacie L. Urbina ◽  
Sara E. Hayward ◽  
...  
Keyword(s):  
Body Composition ◽  
Muscle Strength ◽  
Protein Intake ◽  
Post Exercise ◽  
Equal Dose ◽  
Baseline Testing ◽  
University Population ◽  
Total Body ◽  
Anabolic Window ◽  
Composition Changes

The purpose of this study was to test the anabolic window theory by investigating muscle strength, hypertrophy, and body composition changes in response to an equal dose of protein consumed either immediately pre- versus post-resistance training (RT) in trained men. Subjects were 21 resistance-trained men (>1 year RT experience) recruited from a university population. After baseline testing, participants were randomly assigned to 1 of 2 experimental groups: a group that consumed a supplement containing 25 g protein and 1 g carbohydrate immediately prior to exercise (PRE-SUPP) (n = 9) or a group that consumed the same supplement immediately post-exercise (POST-SUPP) (n = 12). The RT protocol consisted of three weekly sessions performed on non-consecutive days for 10 weeks. A total-body routine was employed with three sets of 8–12 repetitions for each exercise. Results showed that pre- and post-workout protein consumption had similar effects on all measures studied (p > 0.05). These findings refute the contention of a narrow post-exercise anabolic window to maximize the muscular response and instead lends support to the theory that the interval for protein intake may be as wide as several hours or perhaps more after a training bout depending on when the pre-workout meal was consumed.

scholarly journals Muscle Strength Predicting Health Outcomes of Older Adults: A Narrative Review

2019 ◽  
Vol 10 (3) ◽  
pp. 96-99 ◽  
Author(s):  
Chieh-Han Huang ◽  
◽  
Li-Ning Peng ◽  
Liang-Kung Chen ◽  
◽  
...  
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Health Outcomes ◽  
Narrative Review
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