Comparison of the muscle activation pattern for the vastus lateralis before and after an 8-week resistance training program

Context:Physical exercise is regarded as a useful tool in the treatment of multiple sclerosis (MS). Generally, physical rehabilitation have been based on the prescription of aerobic exercises, while fewer programs have been aimed at developing muscular strength.Objective:To establish whether the physical fitness of MS sufferers can be improved by a training program for developing muscular strength.Design:Before and after studySetting:University multipurpose roomParticipants:36 patients, all able to walk, belonging to the Leon Multiple Sclerosis Association.Interventions:The physical exercise programme consisted in resistance training sessions, based mainly on callisthenic, or bodyweight, exercises, during six weeks.

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Predictors of Treatment Response to Progressive Resistance Training for Adolescents with Cerebral Palsy

Physical Therapy ◽

10.1093/ptj/pzab202 ◽

2021 ◽

Author(s):

Nicola Theis ◽

Marika Noorkoiv ◽

Grace Lavelle ◽

Jennifer Ryan

Keyword(s):

Cerebral Palsy ◽

Resistance Training ◽

Muscle Strength ◽

Training Program ◽

Muscle Activation ◽

Controlled Trial ◽

Progressive Resistance Training ◽

Flexor Muscle ◽

Resistance Training Program ◽

Progressive Resistance

Abstract Objective The aim of the study was to examine the variability in plantar-flexor muscle strength changes after progressive resistance training for adolescents with cerebral palsy (CP) and to identify baseline variables associated with change in muscle strength. Methods Thirty-three adolescents with CP were randomized to a 10-week progressive resistance training program as part of a randomized controlled trial (STAR trial). The associations between muscle strength at 10 weeks (n = 30 adolescents) and 22 weeks (n = 28 adolescents) and biomechanical and neuromuscular baseline characteristics, motor function, and fidelity to the program were examined with multivariable linear regression. Conclusion Assessing levels of muscle activation may be able to identify responders to a progressive resistance training program for adolescents with CP. These findings are a first step toward developing tools that can inform decision making in the clinical setting. Impact Due to the heterogenous nature of CP, it is challenging to assess the efficacy of strength training programs in individuals with CP and to understand the variability in outcomes among participants. This study provides a better understanding of the factors that predict response to an exercise program so that resistance training can be directed to those who will potentially benefit from it. Lay Summary There is wide variability in how well young people with CP respond to resistance training. If you are a young person with CP, your physical therapist can measure the amount of your gastrocnemius muscle activity to get an indication of how well you will respond.

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Effect Of Resistance Training In Children Who Are Overweight Or Obese – Pilot Study

Proceedings of the 12th International Conference on Kinanthropology ◽

10.5817/cz.muni.p210-9631-2020-56 ◽

2020 ◽

Author(s):

Kateřina Strašilová ◽

Petr Vajda ◽

Tomáš Hlinský

Keyword(s):

Body Composition ◽

Resistance Training ◽

Training Program ◽

Lean Body Mass ◽

Body Mass ◽

Fat Mass ◽

Total Body Weight ◽

Obese Children ◽

Resistance Training Program ◽

Before And After

Overweight and obese children often suffer for many physiological and psychological is-sues. Resistance training allows them to excel over their peers due to strength ability which is related to their somatotype. The aim of this study was to examine the effect of an eight-week resistance training program on body composition in overweight and obese children. Study sample included 8 boys and 4 girls (age = 11.7 ± 1.54) who were involved in an eight-week strength specifically designed program consisted of two strength training unit per week. Resistance of exercise was set on 8‒10 RM. Body composition were measured by InBody 720 two times before and after the training intervention. The Wilcoxon matched pairs test was used. Results showed increase in total body weight (2.7%), lean body mass (2.5%) and fat mass (3.7%). This effect indicates that used resistance training program is suficient to lean body mass grow. Nevertheless, program proved to be inadequate to avoid an increase in fat mass. This could be caused by many factors which should be consider in further research (e.g. longer technique practice, diet, number of training units).

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Effects of a 6-Week Resistance-Training Program on Functional Fitness of Older Adults

Journal of Aging and Physical Activity ◽

10.1123/japa.10.4.443 ◽

2002 ◽

Vol 10 (4) ◽

pp. 443-452 ◽

Cited By ~ 21

Author(s):

Vinicius Cavani ◽

Constance M. Mier ◽

Anthony A. Musto ◽

Nanette Tummers

Keyword(s):

Older Adults ◽

Resistance Training ◽

Training Program ◽

Upper Body ◽

Moderate Intensity ◽

Control Group ◽

Physical Parameters ◽

Functional Fitness ◽

Resistance Training Program ◽

Before And After

The purpose of this study was to determine the effects of 6 weeks of stretching and moderate-intensity resistance training on older adults’ functional fitness. Twenty-two older adults (69 ± 1 year) participated in a resistance-training program, and 15 (70 ± 4 years) participated in a control group. Training involved 3 sessions per week, each consisting of 1 set of 12–15 repetitions of lower and upper body exercises on resistance machines. Before sessions, participants performed 20 min of stretching exercises. A recently developed test battery (Rikli & Jones, 1999) to assess the physical parameters associated with independent functioning in older adults was performed before and after training. The combined stretching and resistance exercise resulted in significant (p≤ .008) improvements on all the functional tests except the 6-min walk. The results indicate that moderate-intensity resistance training in conjunction with stretching can improve functional fitness in older adults, enabling them to more easily perform activities of daily living.

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REACTION TIME AND SPEED OF MOVEMENT IN OLDER ADULTS BEFORE AND AFTER A RESISTANCE TRAINING PROGRAM

Medicine & Science in Sports & Exercise ◽

10.1249/00005768-199205001-00149 ◽

1992 ◽

Vol 24 (Supplement) ◽

pp. S25

Author(s):

J. K. Wigglesworth ◽

R. Topp ◽

J. E. Edwards ◽

A. E. Mikesky

Keyword(s):

Older Adults ◽

Reaction Time ◽

Resistance Training ◽

Training Program ◽

Resistance Training Program ◽

Before And After

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Comparison of block versus weekly undulating periodization models on endocrine and strength changes in male athletes

Kinesiology ◽

10.26582/k.48.1.9 ◽

2016 ◽

Vol 48 (1) ◽

pp. 71-78 ◽

Cited By ~ 2

Author(s):

Sandro Bartolomei ◽

Jay R. Hoffman ◽

Jeffrey R. Stout ◽

Maddalena Zini ◽

Claudio Stefanelli ◽

...

Keyword(s):

Resistance Training ◽

Training Program ◽

Body Mass ◽

Upper Body ◽

Hormone Response ◽

Anabolic Hormone ◽

Male Athletes ◽

Resistance Training Program ◽

Strength Performance ◽

Before And After

The aim of this study was to examine the hormonal and strength responses to different periodization models of resistance training in male athletes. Eighteen experienced resistance trained males were randomly assigned to either a block (BP; n=10; age: 23.7±2.9 yr; body mass: 78.5±11.3 kg; height: 1.77±0.05 m) or weekly undulating (WUP; n=8; age: 26.0±5.7 y; body mass: 78.9±12.4 kg; height: 1.79±0.05 m) periodized resistance training program. Both programs consisted of four-training sessions per week for 15 weeks, and each was equated for training volume. Analysis of variance was used to compare strength performance and changes in hormone response between groups. Salivary samples were taken before and after the first and the last workout of each mesocycle of the training program and assessed for testosterone (T) and cortisol (C). Maximal strength testing occurred before and after the 15-week training program. A greater increase (p=.040) in bench press strength was observed in BP compared to WUP, while no between group differences were noted for lower body isometric strength (p=.168) and lean body mass (p=.344). Significant elevations in T were seen in both groups following the power training phase, while no differences were noted between BP and WUP during any other training cycle. Results indicated that BP stimulated greater gains in upper body strength compared to WUP. In addition, the power phase of training may provide a greater anabolic hormone response.

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Effects of phosphatidic acid supplementation on muscle thickness and strength in resistance-trained men

Applied Physiology Nutrition and Metabolism ◽

10.1139/apnm-2016-0564 ◽

2017 ◽

Vol 42 (4) ◽

pp. 443-448 ◽

Cited By ~ 7

Author(s):

Adam M. Gonzalez ◽

Katie M. Sell ◽

Jamie J. Ghigiarelli ◽

Christopher F. Kelly ◽

Edward W. Shone ◽

...

Keyword(s):

Resistance Training ◽

Phosphatidic Acid ◽

Training Program ◽

Bench Press ◽

Biceps Brachii ◽

Vastus Lateralis ◽

Muscle Thickness ◽

Analysis Of Covariance ◽

Group Differences ◽

Resistance Training Program

The purpose of this study was to investigate the effects of phosphatidic acid (PA) supplementation on muscle thickness and strength following an 8 week supervised resistance-training program. Fifteen resistance trained men (22.8 ± 3.5 years; 80.6 ± 8.7 kg; 178.1 ± 5.6 cm; 14.6% ± 8.8% body fat) were randomly assigned to a group that either consumed 750 mg of PA or a placebo (PL). Testing was carried out before (PRE) and after (POST) training/supplementation for muscle thickness and strength. Muscle thickness of the rectus femoris (RF), vastus lateralis (VL), biceps brachii (BB), and triceps brachii (TB) muscles were measured via ultrasonography, along with 1 repetition maximum (1RM) of squat, deadlift, and bench press. Analysis of covariance (ANCOVA), using PRE values as the covariate, did not reveal any group differences for measures of muscle thickness in the RF (PA: 3.6% ± 5.2%; PL: 3.2% ± 4.2%, p = 0.97), VL (PA: 23.4% ± 18.1%, PL: 12.5% ± 15.4%, p = 0.37), BB (PA: 3.7% ± 6.4%, PL: 9.6% ± 12.4%, p = 0.86), or TB (PA: 15.1% ± 17.9%, PL: 10.7% ± 19.3%, p = 0.79). Likewise, no group differences were observed in changes in squat (PA: 8.4% ± 4.1%, PL: 8.1% ± 4.2%, p = 0.79), deadlift (PA: 10.1% ± 10.1%, PL: 8.9% ± 9.5%, p = 0.66), or bench press (PA: 5.7% ± 5.5%, PL: 5.1% ± 3.0%, p = 0.76) exercises. Collectively, however, all participants experienced significant (p < 0.05) improvements in each measure of muscle thickness and strength. Results of this study suggest that PA supplementation, in combination with a 3 days·week−1 resistance-training program for 8 weeks, did not have a differential effect compared with PL on changes in muscle thickness or 1RM strength.

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