scholarly journals Increase in muscle power is associated with myofibrillar ATPase adaptations during resistance training

2019 ◽  
Vol 104 (8) ◽  
pp. 1274-1285 ◽  
Author(s):  
Antony G. Philippe ◽  
Corinne Lionne ◽  
Anthony M. J. Sanchez ◽  
Allan F. Pagano ◽  
Robin Candau
Keyword(s):  
Resistance Training ◽  
Muscle Power ◽  
Myofibrillar Atpase

Effects of resistance training and chromium picolinate on body composition and skeletal muscle in older men

1999 ◽  
Vol 86 (1) ◽  
pp. 29-39 ◽  
Author(s):  
Wayne W. Campbell ◽  
Lyndon J. O. Joseph ◽  
Stephanie L. Davey ◽  
Deanna Cyr-Campbell ◽  
Richard A. Anderson ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Body Composition ◽  
Resistance Training ◽  
Muscle Power ◽  
Older Men ◽  
Muscle Size ◽  
Whole Body ◽  
Chromium Picolinate ◽  
High Dose ◽  
Repetition Maximum

The effects of chromium picolinate (CrPic) supplementation and resistance training (RT) on skeletal muscle size, strength, and power and whole body composition were examined in 18 men (age range 56–69 yr). The men were randomly assigned (double-blind) to groups ( n = 9) that consumed either 17.8 μmol Cr/day (924 μg Cr/day) as CrPic or a low-Cr placebo for 12 wk while participating twice weekly in a high-intensity RT program. CrPic increased urinary Cr excretion ∼50-fold ( P < 0.001). RT-induced increases in muscle strength ( P < 0.001) were not enhanced by CrPic. Arm-pull muscle power increased with RT at 20% ( P = 0.016) but not at 40, 60, or 80% of the one repetition maximum, independent of CrPic. Knee-extension muscle power increased with RT at 20, 40, and 60% ( P < 0.001) but not at 80% of one repetition maximum, and the placebo group gained more muscle power than did the CrPic group (RT by supplemental interaction, P < 0.05). Fat-free mass ( P < 0.001), whole body muscle mass ( P < 0.001), and vastus lateralis type II fiber area ( P < 0.05) increased with RT in these body-weight-stable men, independent of CrPic. In conclusion, high-dose CrPic supplementation did not enhance muscle size, strength, or power development or lean body mass accretion in older men during a RT program, which had significant, independent effects on these measurements.

scholarly journals Resistance Training and Stroke: A Critical Analysis of Different Training Programs

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Bruno Bavaresco Gambassi ◽  
Hélio José Coelho-Junior ◽  
Paulo Adriano Schwingel ◽  
Fabiano de Jesus Furtado Almeida ◽  
Tânia Maria Gaspar Novais ◽  
...  
Keyword(s):  
Resistance Training ◽  
Resistance Exercise ◽  
Critical Analysis ◽  
Muscle Power ◽  
Physical Conditioning ◽  
Exercise Programs ◽  
Positive Effects ◽  
Control Comparison ◽  
Evidence Database

The aim of this study was to carry out a literature review on the overall benefits of resistance training (RT) after stroke and undertake a critical analysis of the resistance exercise programs surveyed (rest interval between sets and exercises, number of sets, number of repetitions, intensity, duration of training, and weekly frequency). To obtain articles for the review, we searched PubMed, Google Scholar, and Physiotherapy Evidence Database (PEDro). Inclusion criteria were considered using the PICO (population, intervention, control/comparison, and outcome variables) model. The following characteristics were recorded for all articles: type of study, author, year of publication, participants (time after stroke, sample size, and age), benefits of RT, and structured resistance exercise programs. Positive effects of training were found on anxiety status, quality of life, muscle hypertrophy, cognitive function, strength, and muscle power. Only 5 studies described the main variables of RT in detail. Lack of control of some variables of RT may negatively affect the results of this practice. The findings of the present study may further inform health and physical conditioning professionals on the importance and necessity of using the main variables in the search for benefits for individuals with stroke.

scholarly journals Resistance Training and Pioglitazone Lead to Improvements in Muscle Power During Voluntary Weight Loss in Older Adults

2013 ◽  
Vol 68 (7) ◽  
pp. 828-836 ◽  
Author(s):  
A. P. Marsh ◽  
M. Kyla Shea ◽  
R. M. Vance Locke ◽  
M. E. Miller ◽  
S. Isom ◽  
...  
Keyword(s):  
Older Adults ◽  
Weight Loss ◽  
Resistance Training ◽  
Muscle Power

SIX-WEEK HOME-BASED RESISTANCE TRAINING IMPROVES MUSCLE POWER IN ADULT PATIENTS WITH GH-DEFFICIENCY

1999 ◽  
Vol 31 (Supplement) ◽  
pp. S268 ◽  
Author(s):  
C. W. Coelho ◽  
C. L. Velloso ◽  
R. R.L.O. Brasil ◽  
F. L. Concei????o ◽  
M. Vaisman ◽  
...  
Keyword(s):  
Resistance Training ◽  
Muscle Power ◽  
Adult Patients ◽  
Home Based

Optimal Load for Increasing Muscle Power during Explosive Resistance Training in Older Adults

2004 ◽  
Vol 36 (Supplement) ◽  
pp. S29
Author(s):  
Nathan J. de Vos ◽  
Nalin A. Singh ◽  
Dale A. Ross ◽  
Theodora M. Stavrinos ◽  
Rhonda Orr ◽  
...  
Keyword(s):  
Older Adults ◽  
Resistance Training ◽  
Muscle Power ◽  
Optimal Load

Concurrent Repeated-Sprint and Resistance Training With Superimposed Vibrations in Rugby Players

2014 ◽  
Vol 9 (4) ◽  
pp. 667-673 ◽  
Author(s):  
Luis Suarez-Arrones ◽  
Julio Tous-Fajardo ◽  
Javier Núñez ◽  
Oliver Gonzalo-Skok ◽  
Javier Gálvez ◽  
...  
Keyword(s):  
Resistance Training ◽  
Power Output ◽  
Muscle Power ◽  
Sprint Training ◽  
Power Performance ◽  
Repeated Sprint ◽  
Rugby Players ◽  
Lower Body Power ◽  
Mean Time ◽  
Superimposed Vibrations

Purpose:To examine the effect of repeated-sprint training (RST) vs combined RST and resistance training with superimposed vibrations on repeated-sprint ability (RSA) and lower-body power output in male rugby players.Methods:Players were divided into 2 training groups. One group performed RST (n = 10) 2 d/wk and the other performed RST 1 d/wk and squat resistance training with superimposed vibrations on the second day (RS+ST; n = 10). The squat training was carried out with a volume similar (ie, number of sets and repetitions) to that of the RST. The training period lasted 6 wk, and it was carried out as a supplement to the regular rugby training sessions.Results:Substantial improvements in RSA mean time (RSAmean; +2.3%/ES: 0.77 vs +4.1%/ES: 0.91), RSA percent decrement (%Dec; –25.6%/ES: 1.70 vs –23.2%/ES: 0.99), and squat absolute power output (+5.0%/ES:0.36 vs +17.2%/ES: 0.93) were obtained in RST and RS+ST, respectively. Substantial improvements in RSA best time (RSAbest; +2.6%/ES: 0.61) and squat power output normalized to body mass (+18.6%/ES: 0.76) only occurred in RS+ST. Both pretest and posttest RSAmean were largely correlated with the RSAbest. However, there were only unclear, small to moderate correlations between individual changes in squat power output and either RSAmean or RSAbest.Conclusion:Combined RST and resistance training induced improvements of greater magnitude in both repeated-sprint performance and muscle power output than the RST alone. The lack of substantial correlations between individual changes in repeated-sprint and muscle-power performance suggests that the same subjects were not systematically low or high responders to both RST and strength training.

Effects of Two Modalities of Whole-body Electrostimulation Programs and Resistance Circuit Training on Strength and Power

2019 ◽  
Vol 40 (13) ◽  
pp. 831-841
Author(s):  
Stefano DʼOttavio ◽  
Gianluca Briotti ◽  
Cristina Rosazza ◽  
Filippo Partipilo ◽  
Adriano Silvestri ◽  
...  
Keyword(s):  
Resistance Training ◽  
Training Program ◽  
Body Mass ◽  
Body Fat ◽  
Muscle Power ◽  
Dynamic Strength ◽  
Whole Body ◽  
Control Force ◽  
Circuit Training ◽  
Resistance Training Program

AbstractThe main purpose of this study was to compare the effects on strength and muscle power of a training program based on two different modalities of whole-body electrostimulation (WB-EMS) with respect to a resistance-training program aimed at improving dynamic strength. Twenty-two subjects participated in this study: Thirteen male (age 25.2±2.8 years; height 1.78±0.1 m; body mass 72.8±6.4 kg; body fat 11.6±2.3%) and nine female (age 28.2±3.5 years; height 1.63±0.05 m; body mass 56.8±7.6 kg; body fat 19.1±4.7%). Participants were randomly assigned to three groups that underwent three different 6-week training programs: two modalities of WB-EMS, based on different electrical parameters (experimental), and circuit training with overloads (control). Force-velocity curves were calculated for each participant before and after treatment. All groups improved their level of strength and muscle power (paired sample t-Test, p<0.01; d>1) with a similar magnitude. No significant differences were observed between groups (two-way 2×3 Anova, p>0.05) at the end of the experimentation. This study suggests that WB-EMS might be considered as a valid and faster alternative – or an important complementary procedure – to a traditional overload-based resistance-training program for the development of the DS.

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