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Motriz: Revista de Educação Física, Volume: 22, Número: 2, Publicado: 2016
  • Heart rate variability as important approach for assessment autonomic modulation Mini Review

    Ferreira, Maycon Jr; Zanesco, Angelina

    Resumo em Inglês:

    Abstract Alterations in the heart rate recovery and heart rate variability have been associated with greater risk of mortality and early prognosis of cardiac diseases. Thus, strategies for assessing autonomic nervous system and its modulation to the heart are crucial for preventing cardiovascular events in healthy subjects as well as in cardiac patients. In this review, an update of studies examining heart rate variability (HRV) and its use as indicator of cardiac autonomic modulation will be discussed. It will be described the indexes and methods of analysis and its applicability and the effects of exercise training on HRV and heart rate recovery in different population.
  • Effects of exercise training with blood flow restriction on blood pressure in medicated hypertensive patients Original Article

    Cezar, Marcos Antônio; De Sá, Clodoaldo Antônio; Corralo, Vanessa da Silva; Copatti, Sedinei Lopes; Santos, Guilherme Augusto Gonzaga dos; Grigoletto, Marzo Edir da Silva

    Resumo em Inglês:

    Abstract The development of non-pharmacological approaches to hypertension (HA) is critical for both prevention and treatment. This study examined the hemodynamic and biochemical responses of medicated hypertensive women to resistance exercise with blood flow restriction (vascular occlusion). Twenty-three women were randomly assigned to one of three groups: High intensity strength training (n = 8); low-intensity resistance exercise with occlusion (n = 8); and control (n = 7). The first two groups underwent eight weeks of training performed twice a week, including three series of wrist flexion exercises with or without vascular occlusion. The exercised with occlusion group showed pre- to post-test reduction in systolic and diastolic blood pressure, mean arterial pressure, and double product, whereas the other groups showed no significant hemodynamic changes. In conclusion, resistance exercise during 8 weeks was effective in lowering blood pressure in medicated hypertensive subjects.
  • Association of inflammation, dyslipidemia, obesity and physical activity status in children Original Article

    Guedes, Juliano Magalhães; Mamêde Neto, José Bontempo; Andaki, Alynne Christian Ribeiro; Pereira, Patrícia Feliciano; Oliveira, Michelle Dias de; Dias, Roberto Sousa; Paula, Sérgio Oliveira de; Natali, Antônio José; Rogério, Alexandre de Paula; Mendes, Edmar Lacerda

    Resumo em Inglês:

    Abstract The aim of this study was to verify the association between inflammatory biomarkers, dyslipidemia, obesity and physical activity status in 10-years old children. Ninety-four children participated in this study and were classified into eutrophic (n=36), overweight (n=34) or obese (n=24) according to their body mass index (BMI). The genic expression of interleukin 6 (IL-6), tumor necrosis factor alpha (TNF-α) and chemokine C-C motif ligand 2 (CCL-2) mRNA; the serum concentration of high-density lipoprotein cholesterol (HDL-c) and triglycerides; BMI, percentage of body fat (% BF) and waist circumference; and the number of steps per day were determined. The expression of IL-6, TNF-α and CCL-2 were associated (p < 0.05) positively with serum triglycerides, BMI, % BF and waist circumference, and negatively with serum HDL-c. No association (p > 0.05) between pro-inflammatory biomarkers and number of steps per day was found.
  • Heart rate as an indicator for exercise prescription for normal, overweight, and obese adolescents Original Article

    Gomes, Kamilla Bolonha; Perez, Anselmo José; Carletti, Luciana; Marques, Adilson

    Resumo em Inglês:

    Abstract This study aimed to investigate the relationship between heart rate (HR) predicted and VO2max using a CPET (cardiopulmonary exercise testing) among normal weight, overweight, and obese adolescents. The sample comprised 299 adolescents (142 boys), from Vitória (ES, Brazil), aged 10-14 years (12.6±1.4). Adolescents were classified into normal weight (n=236), overweight (n=34), and obese (n=29). Adolescents were subjected to a CPET ramp protocol on a treadmill. It was observed that the reserve heart rate (HRres) was similar to the maximum recommended oxygen uptake (VO2) for the maintenance and improvement of cardiorespiratory fitness. It was also observed that HRres can be used to control the intensity of exercise sessions in physical education classes independent of weight status. In conclusion, the relationship between the HR and VO2 for adolescents is linear, allowing the level of intensity to be determined by the HRres proportion related with the correspondent %VO2max levels of intensity, according to BMI-for-age categories.
  • Number of steps per day and the screening of cardiovascular disease risk factors in adolescents Original Article

    Mello, Júlio Brugnara; Farias, Vinícius Martins; Bergmann, Mauren Lúcia de Araújo; Bergmann, Gabriel Gustavo

    Resumo em Inglês:

    Abstract Pedometers have been used in some studies to measure physical activity in adolescents. However, cutoff points of steps per day that classify physical activity levels are not yet fully established. The aims of this study were to identify the possibility the number of steps/day to predict cardiovascular disease risk factors in adolescents and to propose cutoff points to the number of steps/day for adolescents. Method: 1,045 adolescents (51.7 % girls) aged 11-17 were randomly selected. The number of steps/day was measured using pedometers. The risk factors considered were total cholesterol, systolic and diastolic blood pressure, skinfold thickness and body mass index. The receiver operating characteristics (ROC) curve was used to analyze data. Results: ROC curve results indicated that the number of steps/day was able to predict increased systolic blood pressure in boys (<16,134 steps/day; p=0.006), increased diastolic blood pressure in girls (<12,399 steps/day; p=0.023) and increased total cholesterol in both sexes (<11,788 steps/day for boys; p=0.016 and < 9,400 steps/day for girls; p=0.001). Conclusion: It is possible to identify adolescents that are more likely to have increased total cholesterol and blood pressure by the number of steps/day.
  • Pulmonary rehabilitation and whole-body vibration in chronic obstructive pulmonary disease Original Article

    Cardoso, Maria Carolina da Silva; Sayão, Larissa Bouwman; Souza, Rosália Maria Pinheiro; Marinho, Patrícia Érika de Melo

    Resumo em Inglês:

    Abstract The Whole-Body Vibration (WBV) has been described as an alternative therapeutic resource for patients with Chronic Obstructive Pulmonary Disease (COPD) with similarity to the Pulmonary Rehabilitation Program (PRP). The aim of the study was to compare PRP to WBV on functional capacity and quality of life in patients with COPD. Twenty individuals with COPD were assigned to PRP and WBV, who were evaluated regarding their lung function, functional capacity and quality of life through spirometry, 6-minute walk test (6MWT) and St. George Respiratory Questionnaire (SGRQ), respectively. The main results for the WBV group were, there were improvements in the walked distance on the 6MWT and in the symptoms and total domains of the SGRQ. For the PRP group, we observed improvement in the activity, impact and total domains of SGRQ. We could conclude that the WBV group increased the walked distance in regard to the PRP group and both programs improved the quality of life.
  • Aging male symptoms: the relationship between physical activity and quality of life Original Article

    Souza, Melissa de Carvalho; Guimarães, Adriana Coutinho de Azevedo

    Resumo em Inglês:

    Abstract Objective To examine the relationship between physical activity (PA) and the aging male symptoms of middle-aged men in the quality of life (QOL). Methodology: Cross-sectional study with a probabilistic samples of 416 men (40-59 years old), all residents in two cities in southern of Brazil. A questionnaire was used. The studied population was divided into two groups: with and without symptoms. The analyses were carried out in a descriptive and inferential approaches. Results: Aging male symptoms were related to QOL. Men who perceive their overall QOL as good presented a13% lower probability of (95%CI = 0.77-0.98) being insufficiently active. For those with symptoms, QOL scores were higher in social and environmental domain in PA between 30-60 min/day, and the physical domain for more than 60min/day. Conclusion: Our findings show the importance of PA to achieve significant benefits in QOL and health of men in middle age with aging male symptoms.
  • Sociodemographic differences in walking for leisure and for commuting in Brazilian workers Original Article

    Krug, Rodrigo de Rosso; Del Duca, Giovâni Firpo; Silva, Kelly Samara da; Bertuol, Cecília; Nahas, Markus Vinicius; Oliveira, Elusa Santina Antunes de; Barros, Mauro Virgilio Gomes de

    Resumo em Inglês:

    Abstract Walking is a great health promotion strategy due to its beneficial effects. Objetive: To identify the prevalence of walking for leisure and for commuting to work and its association with sociodemographic factors among 47,477 Brazilian workers. Walking and sociodemographic factors were obtained from a self-reported questionnaire. Poisson regression was used. Among men, walking for leisure was more frequent in those who were older, live with a partner, had a higher level of education and income, and worked in the Southeastern region of Brazil. When commuting, it was more prevalent among single men, who had a lower level of education and income and worked in the Southern region of this country. Among women, walking for leisure was more common in those who lived with a partner, had no children, and worked in the Southern region. There was an association between the outcome and age, education and family income. Regarding commuting, it was more prevalent among older individuals, without a partner, with a lower level of education and income, and working in the Southern region. Walking was associated with sociodemographic characteristics, with differences between sexes.
  • Quantitative evaluation of trunk muscle strength in wheelchair basketball players Original Article

    Santos, Sileno da Silva; Alonso, Angélica Castilho; Greve, Júlia Maria D'Andréa

    Resumo em Inglês:

    Abstract Trunk muscle strength affects trunk controlling playing an important role in performance and to define the classes of wheelchair basketball players. Trunk control capacity differs among players and quantitative assessments of trunk muscle strength have not been investigated. The aim of this study was to identify and correlate quantitative measures of trunk muscle strength with the wheelchair basketball players' classification. Forty-two male wheelchair basketball players with spinal cord injury, amputation, post-poliomyelitis sequelae, and cerebral palsy had their trunk extension and flexion strength evaluated with isokinetic dynamometer. The classes 1.0, 2.0, 3.0, and 4.0 were considered for statistical analysis. Comparison of trunk muscle strength differed significantly between classes: 1.0 and 3.0; 1.0 and 4.0; 2.0 and 3.0; and 2.0 and 4.0. High correlation was found between the trunk muscle strength and players' classes. The findings of the present study showed a strong correlation of trunk muscle strength and wheelchair basketball classes being able to distinguish players in their classes. However, this quantitative method of evaluation of the trunk muscle strength cannot be solely used to make a decision on the full trunk control.
  • Previous participation in FIFA World-Cup: the key to success? Original Article

    Kobal, Ronaldo; Barroso, Renato; Abad, Cesar Cavinato Cal; Kitamura, Kátia; Carmo, Everton Crivoi do; Pereira, Lucas; Nakamura, Fábio Yuzo; Loturco, Irineu

    Resumo em Inglês:

    Abstract This qualitative-descriptive investigation examining the influence exerted by experienced soccer-players on the ranking obtained from the four best-ranked by their teams in the last four FIFA World Cups (WC). They were divided into experienced-players (at least one WC participation [+1WC]) or non-experienced players (no previous participation [1WC]). Thereafter, they were classified according to their contribution in each of the playoff matches in a given WC: STARTER (started all matches); START/SUBST (started at least one match); SUBST/BENCH (did not start any matches, but replaced a player in at least one match); and BENCH (did not participate in matches). The sample was composed of 33.7% experienced and 66.3% non-experienced players. The number of players +1WC in finalist teams was significantly higher than in the non-finalist teams (p<0.05). In addition, when compared with the non-finalist teams, the finalists presented significantly higher number of players STARTER with +1WC (p<0.05). Possibly, the selection of experienced players to participate in WC may be an effective strategy to achieve better competitive performance.
  • Preliminary results on organization on the court, physical and technical performance of Brazilian professional futsal players: comparison between friendly pre-season and official match Original Article

    Vieira, Luiz Henrique Palucci; Doğramaci, Sera N.; Barbieri, Ricardo Augusto; Milioni, Fabio; Moura, Felipe Arruda; Andrade, Vitor Luiz de; Cesar, Guilherme Manna; Santiago, Paulo Roberto Pereira

    Resumo em Inglês:

    Abstract The main aim of this study was to verify possible differences between a friendly pre-season match (FM) and an official in-season match (OM) regarding physical, technical, and organizational performances of a professional Brazilian futsal team. Ten professional futsal athletes participated in this study. The matches were monitored with video cameras (30 Hz) and athlete trajectories obtained with automatic tracking. The values obtained for distance covered per minute, percentage of distance covered at moderate intensity, team coverage area, spread, passes, possessions, ball touches and successful passes per minute were greater for the OM than FM. On the contrary, percentage of distance covered, standing and walking was greater for the FM than OM. We concluded that physical, technical, and tactical performances are different between a FM and an OM in futsal and also these parameters mutually influenced each other distinctly. Future studies should verify whether pre-season tournaments reproduce similar demands to a regular season official match.
  • Effects of 22 weeks of training on functional markers and match performance of young soccer players Original Article

    Aquino, Rodrigo Leal de Queiroz Thomaz de; Gonçalves, Luiz Guilherme Cruz; Oliveira, Lucas de Paula; Tourinho Filho, Hugo; Puggina, Enrico Fuini

    Resumo em Inglês:

    Abstract The aim of this study was to verify the effects of 22 weeks of training on functional markers and match performance through the use of earned points in competition. Twenty male soccer players were submitted to the same group of tests in four moments of the periodization: before the preparatory stage (T0); after the preparatory stage (T1); after the competitive stage I (T2); after the competitive stage II (T3). The functional markers were measured using the vertical and horizontal jump, T-40; Shuttle Run Test and RAST. The match performance was obtained by earned points in competition. An increase were found for all the variables analyzed for functional markers when T0 was compared with T3. In relation to the match performance, the team obtained 83.33% success in competitive stages. It is possible to conclude that training plan was efficient to improve technical-tactical skills and physical fitness of the studied athletes.
  • Technical-tactical performance profile of the block and dig according to competition category in men's volleyball Original Article

    García-de-Alcaraz, Antonio; Ortega, Enrique; Palao, José M.

    Resumo em Inglês:

    Abstract The aim of this study was to analyse the technical-tactical performance profile of blocking and court defence actions for various age groups and categories of competition in men's volleyball. The sample comprised 16,454 blocks and 8,321 digs performed in 299 sets in several categories of competition (from U-14 to Olympic Games). A descriptive and correlational inter- and intra-group observational design was used. The variables studied were: category of competition, opponent's spike tempo, and block and dig performance. The results showed a significant increase in the percentage of blocks and digs derived from fast attacks and a significant improvement in performance of these actions to counteract slow attacks. Thus, improving in blocking and digging performance was observed at higher categories when the attack is performed slowly. This paper discusses various reasons for the evolution in defensive performance and the effects on the training process for various categories of competition in volleyball.
  • ERRATUM Erratum

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