scholarly journals Twelve weeks’ progressive resistance training combined with protein supplementation beyond habitual intakes increases upper leg lean tissue mass, muscle strength and extended gait speed in healthy older women

2016 ◽  
Vol 18 (6) ◽  
pp. 881-891 ◽  
Author(s):  
Peter Francis ◽  
William Mc Cormack ◽  
Clodagh Toomey ◽  
Catherine Norton ◽  
Jean Saunders ◽  
...  
Keyword(s):  
Resistance Training ◽  
Muscle Strength ◽  
Older Women ◽  
Gait Speed ◽  
Protein Supplementation ◽  
Progressive Resistance Training ◽  
Lean Tissue ◽  
Tissue Mass ◽  
Lean Tissue Mass ◽  
Progressive Resistance

Effect of Whey and Soy Protein Supplementation Combined with Resistance Training in Young Adults

2006 ◽  
Vol 16 (3) ◽  
pp. 233-244 ◽  
Author(s):  
Darren G. Candow ◽  
Natalie C. Burke ◽  
T. Smith-Palmer ◽  
Darren G. Burke
Keyword(s):  
Young Adults ◽  
Resistance Training ◽  
Whey Protein ◽  
Body Mass ◽  
Soy Protein ◽  
Protein Supplementation ◽  
Protein Catabolism ◽  
Lean Tissue ◽  
Tissue Mass ◽  
Lean Tissue Mass

The purpose was to compare changes in lean tissue mass, strength, and myof-brillar protein catabolism resulting from combining whey protein or soy protein with resistance training. Twenty-seven untrained healthy subjects (18 female, 9 male) age 18 to 35 y were randomly assigned (double blind) to supplement with whey protein (W; 1.2 g/kg body mass whey protein + 0.3 g/kg body mass sucrose power, N = 9: 6 female, 3 male), soy protein (S; 1.2 g/kg body mass soy protein + 0.3 g/kg body mass sucrose powder, N = 9: 6 female, 3 male) or placebo (P; 1.2 g/kg body mass maltodextrine + 0.3 g/kg body mass sucrose powder, N = 9: 6 female, 3 male) for 6 wk. Before and after training, measurements were taken for lean tissue mass (dual energy X-ray absorptiometry), strength (1-RM for bench press and hack squat), and an indicator of myofbrillar protein catabolism (urinary 3-methylhistidine). Results showed that protein supplementation during resistance training, independent of source, increased lean tissue mass and strength over isocaloric placebo and resistance training (P < 0.05). We conclude that young adults who supplement with protein during a structured resistance training program experience minimal beneficial effects in lean tissue mass and strength.

The Effect of Whey Protein Supplementation with and Without Creatine Monohydrate Combined with Resistance Training on Lean Tissue Mass and Muscle Strength

2001 ◽  
Vol 11 (3) ◽  
pp. 349-364 ◽  
Author(s):  
Darren G. Burke ◽  
Philip D. Chilibeck ◽  
K. Shawn Davison ◽  
Darren C. Candow ◽  
Jon Farthing ◽  
...  
Keyword(s):  
Resistance Training ◽  
Whey Protein ◽  
Bench Press ◽  
Peak Torque ◽  
Knee Extension ◽  
Protein Supplementation ◽  
Creatine Monohydrate ◽  
Lean Tissue ◽  
Tissue Mass ◽  
Lean Tissue Mass

Our purpose was to assess muscular adaptations during 6 weeks of resistance training in 36 males randomly assigned to supplementation with whey protein (W; 1.2 g/kg/day), whey protein and creatine monohydrate (WC; 0.1 g/kg/day), or placebo (P; 1.2 g/kg/day maltodextrin). Measures included lean tissue mass by dual energy x-ray absorptiometry, bench press and squat strength (1-repetition maximum), and knee extension/flexion peak torque. Lean tissue mass increased to a greater extent with training in WC compared to the other groups, and in the W compared to the P group (p < .05). Bench press strength increased to a greater extent for WC compared to W and P (p < .05). Knee extension peak torque increased with training for WC and W (p < .05), but not for P. All other measures increased to a similar extent across groups. Continued training without supplementation for an additional 6 weeks resulted in maintenance of strength and lean tissue mass in all groups. Males that supplemented with whey protein while resistance training demonstrated greater improvement in knee extension peak torque and lean tissue mass than males engaged in training alone. Males that supplemented with a combination of whey protein and creatine had greater increases in lean tissue mass and bench press than those who supplemented with only whey protein or placebo. However, not all strength measures were improved with supplementation, since subjects who supplemented with creatine and/or whey protein had similar increases in squat strength and knee flexion peak torque compared to subjects who received placebo.

Strategic creatine supplementation and resistance training in healthy older adults

2015 ◽  
Vol 40 (7) ◽  
pp. 689-694 ◽  
Author(s):  
Darren G. Candow ◽  
Emelie Vogt ◽  
Sarah Johannsmeyer ◽  
Scott C. Forbes ◽  
Jonathan P. Farthing
Keyword(s):  
Older Adults ◽  
Resistance Training ◽  
Muscle Strength ◽  
Fat Mass ◽  
Creatine Supplementation ◽  
Lean Tissue ◽  
Tissue Mass ◽  
Lean Tissue Mass ◽  
Leg Press ◽  
Repeated Measures Design

Creatine supplementation in close proximity to resistance training may be an important strategy for increasing muscle mass and strength; however, it is unknown whether creatine supplementation before or after resistance training is more effective for aging adults. Using a double-blind, repeated measures design, older adults (50–71 years) were randomized to 1 of 3 groups: creatine before (CR-B: n = 15; creatine (0.1 g/kg) immediately before resistance training and placebo (0.1 g/kg cornstarch maltodextrin) immediately after resistance training), creatine after (CR-A: n = 12; placebo immediately before resistance training and creatine immediately after resistance training), or placebo (PLA: n = 12; placebo immediately before and immediately after resistance training) for 32 weeks. Prior to and following the study, body composition (lean tissue, fat mass; dual-energy X-ray absorptiometry) and muscle strength (1-repetition maximum leg press and chest press) were assessed. There was an increase over time for lean tissue mass and muscle strength and a decrease in fat mass (p < 0.05). CR-A resulted in greater improvements in lean tissue mass (Δ 3.0 ± 1.9 kg) compared with PLA (Δ 0.5 ± 2.1 kg; p < 0.025). Creatine supplementation, independent of the timing of ingestion, increased muscle strength more than placebo (leg press: CR-B, Δ 36.6 ± 26.6 kg; CR-A, Δ 40.8 ± 38.4 kg; PLA, Δ 5.6 ± 35.1 kg; chest press: CR-B, Δ 15.2 ± 13.0 kg; CR-A, Δ 15.7 ± 12.5 kg; PLA, Δ 1.9 ± 14.7 kg; p < 0.025). Compared with resistance training alone, creatine supplementation improves muscle strength, with greater gains in lean tissue mass resulting from post-exercise creatine supplementation.

scholarly journals Meta-Analysis Examining the Importance of Creatine Ingestion Strategies on Lean Tissue Mass and Strength in Older Adults

Nutrients ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1912
Author(s):  
Scott C. Forbes ◽  
Darren G. Candow ◽  
Sergej M. Ostojic ◽  
Michael D. Roberts ◽  
Philip D. Chilibeck
Keyword(s):  
Resistance Training ◽  
Meta Analysis ◽  
Creatine Supplementation ◽  
Strength Increase ◽  
Lean Tissue ◽  
Tissue Mass ◽  
Resistance Training Program ◽  
Lean Tissue Mass ◽  
Leg Press ◽  
Meta Analyses

Creatine supplementation in conjunction with resistance training (RT) augments gains in lean tissue mass and strength in aging adults; however, there is a large amount of heterogeneity between individual studies that may be related to creatine ingestion strategies. Therefore, the purpose of this review was to (1) perform updated meta-analyses comparing creatine vs. placebo (independent of dosage and frequency of ingestion) during a resistance training program on measures of lean tissue mass and strength, (2) perform meta-analyses examining the effects of different creatine dosing strategies (lower: ≤5 g/day and higher: >5 g/day), with and without a creatine-loading phase (≥20 g/day for 5–7 days), and (3) perform meta-analyses determining whether creatine supplementation only on resistance training days influences measures of lean tissue mass and strength. Overall, creatine (independent of dosing strategy) augments lean tissue mass and strength increase from RT vs. placebo. Subanalyses showed that creatine-loading followed by lower-dose creatine (≤5 g/day) increased chest press strength vs. placebo. Higher-dose creatine (>5 g/day), with and without a creatine-loading phase, produced significant gains in leg press strength vs. placebo. However, when studies involving a creatine-loading phase were excluded from the analyses, creatine had no greater effect on chest press or leg press strength vs. placebo. Finally, creatine supplementation only on resistance training days significantly increased measures of lean tissue mass and strength vs. placebo.

scholarly journals Evidence of Rehabilitative Impact of Progressive Resistance Training (PRT) Programs in Parkinson Disease: An Umbrella Review

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
T. Paolucci ◽  
S. Sbardella ◽  
C. La Russa ◽  
F. Agostini ◽  
M. Mangone ◽  
...  
Keyword(s):  
Resistance Training ◽  
Muscle Strength ◽  
Parkinson Disease ◽  
Systematic Reviews ◽  
Cochrane Library ◽  
Progressive Resistance Training ◽  
Umbrella Review ◽  
Positive Effects ◽  
Meta Analyses ◽  
Progressive Resistance

Parkinson disease (PD) is a chronic neurodegenerative condition that leads to progressive disability. PD-related reductions in muscle strength have been reported to be associated with lower functional performance and balance confidence with an increased risk of falls. Progressive resistance training (PRT) improves strength, balance, and functional abilities. This umbrella review examines the efficacy of PRT regarding muscular strength in PD patients. The PubMed, PEDro, Scopus, and Cochrane Library databases were searched from January 2009 to August 2019 for systematic reviews and meta-analyses conducted in English. The populations included had diagnoses of PD and consisted of males and females aged >18 years old. Outcomes measured were muscle strength and enhanced physical function. Eight papers (six systematic reviews and meta-analyses and two systematic reviews) were considered relevant for qualitative analysis. In six of the eight studies, the reported severity of PD was mild to moderate. Each study analyzed how PRT elicited positive effects on muscle strength in PD patients, suggesting 10 weeks on average of progressive resistance exercises for the upper and lower limbs two to three times per week. However, none of the studies considered the postworkout follow-up, and there was no detailed evidence about the value of PRT in preventing falls. The possibility of PRT exercises being effective for increasing muscle strength in patients with PD, but without comorbidities or severe disability, is discussed. Overall, this review suggests that PRT should be included in rehabilitation programs for PD patients, in combination with balance training for postural control and other types of exercise, in order to preserve cardiorespiratory fitness and improve endurance in daily life activities.

scholarly journals 173 STRENGTH IMPROVEMENT WITH PROGRESSIVE RESISTANCE TRAINING IN OLDER WOMEN

1994 ◽  
Vol 26 (Supplement) ◽  
pp. S31
Author(s):  
C Morganti ◽  
M. Nelson ◽  
M. Fiatarone ◽  
B. Crawford ◽  
C. Economos ◽  
...  
Keyword(s):  
Resistance Training ◽  
Older Women ◽  
Progressive Resistance Training ◽  
Strength Improvement ◽  
Progressive Resistance

Randomized trial of progressive resistance training to counteract the myopathy of chronic heart failure

2001 ◽  
Vol 90 (6) ◽  
pp. 2341-2350 ◽  
Author(s):  
Charles T. Pu ◽  
Meredith T. Johnson ◽  
Daniel E. Forman ◽  
Jeffrey M. Hausdorff ◽  
Ronenn Roubenoff ◽  
...  
Keyword(s):  
Heart Failure ◽  
Skeletal Muscle ◽  
Chronic Heart Failure ◽  
Resistance Training ◽  
Older Women ◽  
Citrate Synthase ◽  
Type I ◽  
Progressive Resistance Training ◽  
Walk Distance ◽  
Progressive Resistance

Chronic heart failure (CHF) is characterized by a skeletal muscle myopathy not optimally addressed by current treatment paradigms or aerobic exercise. Sixteen older women with CHF were compared with 80 age-matched peers without CHF and randomized to progressive resistance training or control stretching exercises for 10 wk. Women with CHF had significantly lower muscle strength ( P < 0.0001) but comparable aerobic capacity to women without CHF. Exercise training was well tolerated and resulted in no changes in resting cardiac indexes in CHF patients. Strength improved by an average of 43.4 ± 8.8% in resistance trainers vs. −1.7 ± 2.8% in controls ( P = 0.001), muscle endurance by 299 ± 66% vs. 1 ± 3% ( P = 0.001), and 6-min walk distance by 49 ± 14 m (13%) vs. −3 ± 19 m (−3%) ( P = 0.03). Increases in type I fiber area (9.5 ± 16%) and citrate synthase activity (35 ± 21%) in skeletal muscle were independently predictive of improved 6-min walk distance ( r 2 = 0.78; P = 0.0024). High-intensity progressive resistance training improves impaired skeletal muscle characteristics and overall exercise performance in older women with CHF. These gains are largely explained by skeletal muscle and not resting cardiac adaptations.

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