Mauro Lúcio Mazini Filho

A Randomized Trial Investigating the Influence of Strength Training on Quality of Life in Ischemic Stroke

Abstract Background: Strength training post stroke is widely acknowledged as an important part of a rehabilitation program. Muscle strength has been shown to be a significant contributor to physical disability after stroke, which in turn has an immense impact on the reintegration of patients into society, affecting their quality of life. Objective: This was a randomized intervention trial to determine the effect of a resistance training program on the quality of life in patients with stroke. Methods: An experimental group (EG), consisting of 11 subjects aged 51.7 ± 8.0 years, and a control group (CG), consisting of 13 subjects aged 52.5 ± 7.7 years, were studied before and after 12 weeks. EG underwent 12 weeks of strength training three times a week. The CG did not undergo strength training during the 12-week study period. Results: There was a significant increase in quality of life from pre-test to post-test (Δ% = 21.47%; p = 0.021) in EG. There were significant differences in all indicators of quality of life between groups at 12 weeks. There were greater gains in strength in EG than in CG (p ≤ 0.05). There was a negative correlation between the strength gains as determined with the 1RM test and the quality of life, especially in lower limb exercises. Conclusion: The results of this study indicate that there was an improvement in the measures of strength in EG, and that there was a correlation between improvements in strength and quality of life in these patients who had previously suffered a stroke at least one year prior to study.

Cardiovascular Responses to Unilateral, Bilateral, and Alternating Limb Resistance Exercise Performed Using Different Body Segments

Abstract Moreira, OC, Faraci, LL, de Matos, DG, Mazini Filho, ML, da Silva, SF, Aidar, FJ, Hickner, RC, and de Oliveira, CEP. Cardiovascular responses to unilateral, bilateral and alternating limb resistance exercise performed using different body segments. J Strength Cond Res 31(3): 644–652, 2017—The aim of this study was to verify and compare the cardiovascular responses to unilateral, bilateral, and alternating limb resistance exercise (RE) performed using different body segments. Fifteen men experienced in RE were studied during biceps curls, barbell rows, and knee extension exercises when performed bilaterally, unilaterally, and using alternating limbs. The protocol consisted of 3 sets of 10 repetitions at 80% of 10 repetition maximum with 2-minute rest between sets. Heart rate (HR) and blood pressure (BP) were measured after the last repetition. There was a statistically significant increase in HR, systolic blood pressure (SBP), and rate pressure product (RPP), from rest to postexercise. The RPP was higher in the third set of all exercises and in all 3 forms of execution, when compared with the first set. Bilateral biceps curls caused a greater increase in RPP (first and second sets) and HR, compared with the same exercise performed unilaterally. Furthermore, the performance of bilateral biceps curls induced greater HR and RPP, in all sets, compared with bilateral knee extension and barbell rows. There was also a significantly higher SBP for the alternating second and third sets and also for the bilateral third set of the knee extensions as compared with the barbell rows. It was concluded from the data of this study that the cardiovascular response was increased from rest to postexercise in all forms of exercise, especially immediately after the third set of RE. For exercises performed bilaterally with the upper body (biceps curls), there was a greater cardiovascular response when compared with the same exercise performed unilaterally or with lower-body exercise performed bilaterally.

Treinamento resistido na Educação Física Escolar: uma proposta de ensino

Objective: search the literature, studies and scientific evidence to support or refute the effectiveness of endurance training in physical education in the development of muscular strength in adolescents. Clarify myths and truths showing the importance of endurance training in scholar physical education. Present a teaching proposal providing to the physical education teacher real opportunities to teach such content in their classes. Method: a bibliographic qualitative approach study comparing studies pursued in databases CAPES, Scielo, Research VHL Portal, Google Scholar, and MedLine. Terms searched were: training, strength training, endurance training, weight training, teen, child, physical education, health, sexual maturation and muscle strength. Results: we found 20 articles that were analyzed for the present study. Final considerations: endurance training with children and teenagers has benefits when applied correctly, respecting biological individuality and maturity of each student. Harm resulting from the application of strength training comes from overstep of recommended limits in young students associated to poor diet and anabolic intake. Physical education teachers must examine closely children and teenagers body de

O ensino de lutas nas aulas de Educação Física Escolar

A pratica das lutas apresenta valores que ajudam no desenvolvimento do cidadao, nas expressoes corporais, nos movimentos, nas capacidades fisicas envolvidas em sua pratica, na moral e respeito entre os participantes, na promocao da saude entre outros; sua realizacao se encaixa dentro dos conteudos da educacao fisica escolar. Todavia tal conteudo nao tem feito parte do cotidiano de muitas escolas. Objetivo: investigar se os professores de Educacao Fisica do ensino fundamental da rede municipal da cidade de Cataguases, Minas Gerais conhecem e ministram o conteudo lutas em suas aulas. Metodo: participaram deste estudo 18 professores de Educacao Fisica que responderam a um questionario fechado contendo 8 questoes especificas. Resultados e consideracoes finais: dos 18 profissionais entrevistados, 17 afirmaram que e possivel trabalhar lutas na escola. 10 afirmaram ministrar lutas dentro de suas aulas de Educacao Fisica e destes, 9 marcaram que trabalham o conteudo de forma ludica e apenas um recorre a ajuda de especialista. Quanto aos professores que afirmaram nao aplicar o conteudo, a maioria relata que a escola nao tem condicoes fisicas para isso. Entende-se que o conteudo lutas vem sendo trabalhado de forma inadequada e muitas vezes nem e colocado em pratica. Sao necessarias capacitacoes profissionais especificas nesta area de intervencao, associadas a estudos pertinentes a tematica, que podem ser auxiliados pelo PCN (Parâmetros Curriculares Nacionais) e CBC (Conteudo Basico Comum), reforcando o ensino das lutas na Educacao Fisica escolar.