scholarly journals Resistance Exercise Training in McArdle Disease: Myth or Reality?

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Aleksandra Pietrusz ◽  
Renata S. Scalco ◽  
Ros Quinlivan
Keyword(s):  
Strength Training ◽  
Rest Period ◽  
Creatine Phosphate ◽  
Muscular Contraction ◽  
Mcardle Disease ◽  
Specific Protocol ◽  
Isometric Muscle Contraction ◽  
Resistance Exercises ◽  
Type Of Exercise

McArdle disease is a metabolic myopathy mainly characterised by symptom onset during physical activities or isometric muscle contraction. Resistance (also termed strength) training is a type of physical exercise focusing on the use of resistance (e.g., lifting weights) to induce muscular contraction, which builds muscle mass and strength. Historically people with McArdle disease were advised to avoid resistance exercises and any other form of physical activity involving high mechanical loads such as prolonged isometric contraction. Paradoxically, a clinical trial exploring the benefits of strength training in this patient population was published. The theory supporting strength training relied on the use of the ATP molecule and the creatine phosphate (ATP-phosphocreatine system) as energy sources for skeletal muscles. Here, we report two patients with McArdle disease who performed weight training at local gyms. A single set of repetitions lasted for maximum 10 seconds with minimum of 30 seconds of rest period in between sets of exercises. Benefits of this type of training included improvement in quality of life and amelioration of McArdle disease symptoms. We provide further safety evidence of this type of exercise in people with McArdle disease. We emphasise the importance of using a specific protocol developed for people affected by this condition.

scholarly journals The type of exercise most beneficial for quality of life in people with multiple sclerosis: A network meta-analysis

2022 ◽  
Vol 65 (3) ◽  
pp. 101578
Author(s):  
Sara Reina-Gutiérrez ◽  
Iván Cavero-Redondo ◽  
Vicente Martínez-Vizcaíno ◽  
Sergio Núñez de Arenas-Arroyo ◽  
Purificación López-Muñoz ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Multiple Sclerosis ◽  
Meta Analysis ◽  
Type Of Exercise

scholarly journals QUALITY OF LIFE AND BODY IMAGE OF WOMEN PRACTICING STRENGTH TRAINING AND GYMNASTICS

2019 ◽  
Vol 20 (1) ◽  
pp. 149-159
Author(s):  
Ana Barbosa Anversa ◽  
Déborah Mantovi ◽  
Mateus Antunes ◽  
Renan Codonhato ◽  
Daniel Vicentini de Oliveira
Keyword(s):  
Quality Of Life ◽  
Body Image ◽  
Strength Training

The Effect of Self-Paced and Prescribed Interset Rest Strategies on Performance in Strength Training

2019 ◽  
Vol 14 (7) ◽  
pp. 980-986
Author(s):  
Peter Ibbott ◽  
Nick Ball ◽  
Marijke Welvaert ◽  
Kevin G. Thompson
Keyword(s):  
Strength Training ◽  
Perceived Exertion ◽  
Mechanical Performance ◽  
Rest Period ◽  
Rating Of Perceived Exertion ◽  
Subjective Rating ◽  
Male Athletes ◽  
Rest Periods ◽  
Pacing Strategies ◽  
Feasible Alternative

Purpose: To assess pacing strategies using prescribed and self-selected interset rest periods and their influence on performance in strength-trained athletes. Methods: A total of 16 strength-trained male athletes completed 3 randomized heavy strength-training sessions (5 sets and 5 repetitions) with different interset rest periods. The interset rest periods were 3 min (3MIN), 5 min (5MIN), and self-selected (SS). Mechanical (power, velocity, work, and displacement), surface electromyography (sEMG), and subjective (rating of perceived exertion) and readiness-to-lift data were recorded for each set. Results: SS-condition interset rest periods increased from sets 1 to 4 (from 207.52 to 277.71 s; P = .01). No differences in mechanical performance were shown between the different interset rest-period conditions. Power output (210 W; 8.03%) and velocity (0.03 m·s−1; 6.73%) decreased as sets progressed for all conditions (P < .001) from set 1 to set 5. No differences in sEMG activity between conditions were shown; however, vastus medialis sEMG decreased as the sets progressed for each condition (1.75%; P = .005). All conditions showed increases in rating of perceived exertion as sets progressed (set 1 = 6.1, set 5 = 7.9; P < .001). Participants reported greater readiness to lift in the 5MIN condition (7.81) than in the 3MIN (7.09) and SS (7.20) conditions (P < .001). Conclusions: Self-selecting interset rest periods does not significantly change performance compared with 3MIN and 5MIN conditions. Given the opportunity, athletes will vary their interset rest periods to complete multiple sets of heavy strength training. Self-selection of interset rest periods may be a feasible alternative to prescribed interset rest periods.

scholarly journals Physiology of exercise in orofacial motricity: knowledge about the issue

Revista CEFAC ◽  
2019 ◽  
Vol 21 (1) ◽  
Author(s):  
Geciane Maria Xavier Torres ◽  
Carla Patrícia Hernandez Alves Ribeiro César
Keyword(s):  
Signs And Symptoms ◽  
Muscular Contraction ◽  
Exercise Frequency ◽  
Chi Square ◽  
Serial Number ◽  
The Face ◽  
Kolmogorov Smirnov ◽  
Type Of Exercise ◽  
Education In Brazil ◽  
Speech Therapists

ABSTRACT Objective: to investigate the knowledge of speech therapists about the physiology of exercise in orofacial motricity. Methods: 38 speech therapists working in orofacial motricity in the state of Sergipe, Brazil, graduated from institutions of higher education in Brazil, answered eleven closed questions about the type of exercise, frequency, time of muscle contraction, serial number and signs and symptoms of muscular fatigue. The results were analyzed by the Kolmogorov-Smirnov and Chi-square tests (5% significance). Results: the variation of the exercises regarding the time of contraction was cited by the majority (89.47%) and the serial number throughout therapy by all the participants. There was a 60.52% improvement on the isometric and isotonic exercises, 55.26% on the application of exercises in asymmetries and 47.34% on the sequence of exercises according to the type of muscular contraction. The majority of the participants conducted home exercises for more than three days a week (73.69%), and .63% participants indicated the interval time between one minute and two minutes. The most commonly reported signs and symptoms of muscle fatigue in the face were tremor / fibrillation (78.95%). Conclusion: the knowledge of the study group about the physiology of exercise still lacks greater technical-scientific subsidies.

scholarly journals Energy Cost of Resistance Exercises: an Uptade

2011 ◽  
Vol 29A (Special-Issue) ◽  
pp. 33-39 ◽  
Author(s):  
Victor Reis ◽  
Roberto Júnior ◽  
Adam Zajac ◽  
Diogo Oliveira
Keyword(s):  
Resistance Exercise ◽  
Strength Training ◽  
Body Mass ◽  
Energy Cost ◽  
Large Body ◽  
Oxygen Deficit ◽  
Estimation Methods ◽  
Cost Calculation ◽  
Resistance Exercises ◽  
Cost Of Resistance

Energy Cost of Resistance Exercises: an UptadeThe use of resistance exercises and of typical strength training methods have been progressively used to control body mass and to promote fat mass loss. The difficulties involved in the energy cost calculation during strength training are associated with the large amount of exercises and their several variations. Mean values between ≈3 and 30 kcal·min-1are typically reported but our studies indicate that it may attain values as high as 40 kcal·min-1in exercises which involve a large body mass. Therefore, in our opinion, the next step in research must be the isolated study of each of the main resistance exercises. Since the literature is scarce and that we do consider that the majority of the studies present severe limitations, the aim of this paper is to present a critical analysis of the energy cost estimation methods and provide some insights that may help to improve knowledge on resistance exercise. It seems necessary to rely on the expired O2measurements to quantify aerobic energy. However, it is warranted further attention on how this measure is performed during resistance exercises. In example, studies on the O2on-kinetics at various conditions are warranted (i.e. as a function of intensity, duration and movement speed). As for anaerobic lactic energy, it is our opinion that both the accumulated oxygen deficit and the blood lactate energy equivalent deserve further studies; analyzing variations of each method as an attempt to establish which is more valid for resistance exercise. The quantification of alactic anaerobic energy should be complemented by accurate studies on the muscle mass involved in the different resistance exercises. From the above, it is concluded that knowledge on the energy cost in resistance exercises is in its early days and that much research is warranted before appropriate reference values may be proposed.

Effects of 24 weeks strength training with and without unstable devices on strength, flexibility and quality of life in older women: A secondary analysis from randomized controlled trial

2020 ◽  
pp. 1-9
Author(s):  
André Luiz Torres Pirauá ◽  
Valéria Mayaly Alves de Oliveira ◽  
Bruno Remígio Cavalcante ◽  
Natália Barros Beltrão ◽  
Gabriel de Amorim Batista ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Strength Training ◽  
Grip Strength ◽  
Older Women ◽  
Moderate Intensity ◽  
Health Related Quality ◽  
Strength Exercises ◽  
Related Quality ◽  
Health Related

BACKGROUND: Combining strength training (ST) with unstable surfaces (US) is a promising complementary approach to traditional ST to optimize muscle strength and balance in different populations. OBJECTIVE: To evaluate the effects of traditional ST and ST+US on grip strength, flexibility and quality of life in older women. METHODS: Fifty-eight older women were randomly assigned into ST (n= 22), ST+US (n= 22) or control (n= 14) group. Exercise groups performed whole-body, moderate-intensity strength exercises, thrice a week during 24-weeks. ST+US participants performed the same exercise prescription progressively adding unstable surfaces and devices. Dependent variables (grip strength, flexibility and health-related quality of life) were measured at baseline, 12-weeks and after 24-weeks of intervention. RESULTS: At completion of 24-weeks, compared with control group, traditional ST promote flexibility gains [SRT =+ 5.42 cm (95% CI = 1.01 to 9.83)]. Both training regimes improved quality of life [ST =+9.50 (95% CI = 1.80 to 17.20); ST+US =+ 15.23 (95%CI = 7.37 to 23.08). No significant between-group difference was observed for grip strength at completion of the intervention. CONCLUSION: Traditional strength exercises were effective to improve flexibility and health-related quality of life among healthy older women. Combining unstable devices with traditional exercise did not provide additional gains in order to promote flexibility and quality of life.

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