Acute low- compared to high-load resistance training to failure results in greater energy expenditure during exercise in healthy young men

The objective of the present study was to verify the energy expenditure (EE), energy system contributions and autonomic control during and after an acute low-load or high-load resistance training (RT) protocol to momentary failure (MF) in young adults. Eleven young men (22 ± 3 yrs, 71.8 ± 7.7 kg; 1.75 ± 0.06 m) underwent a randomized crossover design of three knee extension acute protocols: a low-load RT [30% of their maximal strength (1RM); RT30] or a high-load RT (80% of 1RM; RT80) protocol, with all sets being performed to MF; or a control session (Control) without exercise. Participants were measured for EE, energy system contributions, and cardiac autonomic control before, during, and after each exercise session. Exercise EE was significantly higher for RT30 as compared to RT80. Furthermore, post measurements of blood lactate levels and the anaerobic lactic system contribution were significantly greater for RT30 as compared to RT80. In addition, parasympathetic restoration was lower for RT30 as compared to RT80. In conclusion, a low-load (30% 1RM) RT session produced higher EE during exercise than a high-load (80% 1RM) RT session to MF, and may be a good option for fitness professionals, exercise physiologists, and practitioners when choosing the optimal RT protocol that provides more EE, especially for those who want or need to lose weight1411CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ123216/2015-

Factors influencing depression markers in elderly primary healthcare center patients in Maringá, Paraná, Brazil, 2017

Analisar os fatores intervenientes nos indicativos de depressão em idosos das unidades básicas de saúde (UBS) do município de Maringá, Paraná, Brasil, em 2017. Estudo transversal, realizado com idosos usuários das UBS de Maringá; utilizou-se um questionário com questões sociodemográficas, a Escala de Depressão Geriátrica (Geriatric Depression Scale [GDS]) e o Questionário Internacional de Atividade Física (International Physical Activity Questionnaire [IPAQ]); foram analisadas as associações e comparações do indicativo de depressão com as variáveis sociodemográficas e as condições de saúde. 654 idosos participaram do estudo; apresentaram maior indicativo de depressão aqueles com menor renda mensal, percepção de saúde ruim, histórico de quedas e três ou mais comorbidades, enquanto os fisicamente ativos apresentaram menor indicativo de depressão. Renda mensal e condições de saúde parecem ser fatores intervenientes nos indicativos de depressão; a prática de atividades físicas leves está associada a menor tendência de depressão na terceira idade283To analyze factors influencing depression markers in elderly patients at primary healthcare centers (PHC) in the city of Maringá, Paraná, Brazil, in 2017. METHODS: this was a cross-sectional study carried out with elderly individuals at PHCs in Maringá city; we used a questionnaire comprising sociodemographic questions, the Geriatric Depression Scale (GDS) and the International Physical Activity Questionnaire (IPAQ); we analyzed associations and compared depression markers with sociodemographic variables and health conditions. RESULTS: 645 elderly people took part in the study; those with the highest depression markers had lower income, poor health perception, a history of falls and three or more comorbidities; the physically active elderly had lower depression markers. CONCLUSION: monthly income and health conditions are factors that influence depression markers; doing light physical activities is associated with lower tendency of depression in the elderl

International nosocomial infection control consortium (INICC) report, data summary of 36 countries, for 2004-2009

The results of a surveillance study conducted by the International Nosocomial Infection Control Consortium (INICC) from January 2004 through December 2009 in 422 intensive care units (ICUs) of 36 countries in Latin America, Asia, Africa, and Europe are reported. During the 6-year study period, using Centers for Disease Control and Prevention (CDC) National Healthcare Safety Network (NHSN; formerly the National Nosocomial Infection Surveillance system [NNIS]) definitions for device-associated health care-associated infections, we gathered prospective data from 313,008 patients hospitalized in the consortium's ICUs for an aggregate of 2,194,897 ICU bed-days. Despite the fact that the use of devices in the developing countries' ICUs was remarkably similar to that reported in US ICUs in the CDC's NHSN, rates of device-associated nosocomial infection were significantly higher in the ICUs of the INICC hospitals; the pooled rate of central line-associated bloodstream infection in the INICC ICUs of 6.8 per 1,000 central line-days was more than 3-fold higher than the 2.0 per 1,000 central line-days reported in comparable US ICUs. The overall rate of ventilator-associated pneumonia also was far higher (15.8 vs 3.3 per 1,000 ventilator-days), as was the rate of catheter-associated urinary tract infection (6.3 vs. 3.3 per 1,000 catheter-days). Notably, the frequencies of resistance of Pseudomonas aeruginosa isolates to imipenem (47.2% vs 23.0%), Klebsiella pneumoniae isolates to ceftazidime (76.3% vs 27.1%), Escherichia coli isolates to ceftazidime (66.7% vs 8.1%), Staphylococcus aureus isolates to methicillin (84.4% vs 56.8%), were also higher in the consortium's ICUs, and the crude unadjusted excess mortalities of device-related infections ranged from 7.3% (for catheter-associated urinary tract infection) to 15.2% (for ventilator-associated pneumonia). Copyright © 2012 by the Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved

Neuromuscular And Metabolic Characteristics Of Elite Basketball Referees.

The dynamics of Basketball refereeing has changed and more recently the championships started to use the participation of three referees, but there is still a lack of information about the physical characteristics and performance of the referees. The aim of this study was to characterize the neuromuscular and metabolic performances and body composition of Brazilian elite basketball referees, with a level of national and international refereeing. Thirty-seven referees participated in the study (international level N.=17 and national level N.=20). We evaluated anthropometric and body composition variables, among them: height, body mass, body mass index (BMI) and body fat (%); metabolic parameters: lactate at rest and post-exercise; and neuromuscular performance: speed, explosive lower limbs strength, flexibility and aerobic capacity. The main results showed a statistically significant difference in age, in which the international referees were older than the national level (41.94±6.71; 37.30±7.23; P=0.036). There were not significant differences between the levels for neuromuscular and metabolic parameters and body composition. Comparing the results with athletes, the referees showed lower neuromuscular and metabolic parameters and the body composition showed higher body fat than basketball players. These data may represent physiological parameters to be considered in the prescription of physical training during the preparation and competition period.53321722

Alteração da velocidade em jovens futebolistas brasileiros no período competitivo e sua relação com o conteúdo de treinamento

Objetivo: O presente estudo busca determinar a alteração da velocidade em jovens futebolistas no período competitivo e sua relação com o conteúdo de treinamento. Método: Participaram da pesquisa 17 jovens futebolistas (16.3 ± 0.4 anos, 70.2 ± 6.1 kg, 176 ± 6.4 cm). A equipe foi analisada durante 17 semanas no período competitivo de treinamento. Foram realizadas avaliações da velocidade em 10 m (V10 m) e 30 m (V30 m) em 3 momentos distintos (M1 = 1a, M2 = 10a e M3 = 17a semana do estudo). Resultados: Os principais resultados apontam decréscimo significativo (p < 0.05) de M1 (7.25 ± 0.20 m/s) para M3 (7.05 ± 0.20 m/s) para a variável V30 m e sensível aumento em V10 m. Conclusão: Conclui‐se que o treinamento aplicado no período competitivo analisado provocou melhoria sensível para V10 m e decréscimo para V30 m para os jovens futebolistas do estudo

Effect Of Diferents Methods Of Recovery On The Lactate Removal And Anaerobic Performance In Soccer Players [efeito De Diferentes Méto Dos De Recuperação Sobre A Remoção De Lact Ato E Desempenho Anaeróbio De Futebolistas]

Introduction: Soccer is characterized as a sport of high intensity, performed intermittently and with random sequences of periods of effort and recovery; thus, strategies that can somehow minimize muscle fatigue can provide an important competitive advantage. Objective: This study aimed to compare different methods of recovery with the removal of blood lactate (La-) and anaerobic performance of soccer players. Methods: Twenty-three male soccer players between 16 and 17 years were divided into three groups: active recovery (RA), passive recovery (RP) and ice recovery (RG). To assess the aerobic capacity the critical speed was used, and for the induction of hyperlactacidemia and anaerobic performance the RAST test was applied before (T1) and after (T2) the recovery intervals. The measurements of blood La- were made at 2, 4, 6, 8 and 10 minutes during the recovery period. The one-way ANOVA was used to compare the variables that characterize the groups. A two-way ANOVA was performed for comparison between the peak and minimum values of blood La- and anaerobic performance at T1 and T2 for the three recovery conditions. Results: There was no significant difference between T1 and T2 for maximum and average power in the studied groups (p>0.05). It was observed greater removal of blood La- (47.62%) for the RA when compared to RG (16.9%; p = 0.001) and RP (18.20%; p = 0.02). Conclusion: RA, RP and RG are effective to maintain the anaerobic performance of soccer players under 17. Active recovery was shown more efficient for removing the blood La- when compared to RP and RG.196423426Bangsbo, J., The physiology of soccer (1994) Acta Physio Scand, (SUPPL.), p. 151Osgnach, C., Poser, S., Bernardini, R., Rinaldo, R., Di Prampero, P.E., Energy cost and metabolic Power in elite soccer: A new match analysis approach (2010) Med Sci Sports Exerc, 42, pp. 170-178Bangsbo, J., Krustrup, P., Gonzalez-Alonso, J., Saltin, B., ATP production and efficiency of human skeletal muscle during intense exercise: Effect of previous exercise (2001) Am J Physiol Endocrinol Metab, 280, pp. 956-964Krustrup, P., Zebis, M., Jensen, J.M., Mohr, M., Game-induced fatigue patterns in elite female soccer (2010) J Strength Cond Res, 24, pp. 437-441Krustrup, P., Mohr, M., Steensberg, A., Bencke, J., Kjaer, M., Bangsbo, J., Muscle and blood metabolites during a soccer game: Implications for sprint performance (2006) Med Sci Sports Exerc, 38, pp. 1165-1174Pastre, C.M., Bastos, F.N., Junior, J.N., Vanderlei, L.C.M., Hoshi, R.A., Métodos de recuperação pós exercício: Uma revisão sistemática (2009) Rev Bras Med Esporte, 15, pp. 138-144Kranenburg, K., Smith, D., Comparison of critical speed determined from track running and treadmill tests in elite runners (1996) Med Sci Sports Exrec, 28, pp. 614-618Zacharogiannis, E., Paradisis, G., Tziortzis, S., An evaluation of tests of anaerobic power and capacity (2004) Med Sci Sports Exerc, 36, pp. S116Zagatto, A.M., Beck, W.R., Gobatto, C.A., Validity of the running anaerobic sprint test for assessing anaerobic power and predicting short-distance performances (2009) J Strength Cond Res, 23, pp. 1820-1827Clarkson, P.M., Hubal, M.J., Exercise-induced muscle damage in humans (2002) Am J Phys Med Rehabil, 81, pp. S52-S69Lamb, G.D., Point: Counterpoint: Lactic acid accumulation is an advantage/disadvantage during muscle activity (2006) J Appl Physiol, 100, pp. 1410-1412Vaile, J., Halson, S., Gill, N., Dawson, B., Effect of cold water immersion on repeat cycling performance and thermoregulation in the heat (2008) J Sports Sci, 26, pp. 431-440Richendollar, M.L., Darby, L.A., Brown, T.M., Ice bag application, active warm-up, and 3 measures of maximal functional performance (2006) J Athl Train, 41, pp. 364-670Choi, D., Cole, K.J., Goodpaster, B.H., Fink, W.J., Costill, D.L., Effect of passive and active recovery on the resynthesis of muscle glycogen (1994) Med Sci Sports Exerc, 26, pp. 992-996Pournot, H., Bieuzen, F., Duffield, R., Lepretre, P.M., Cozzolino, C., Hausswirth, C., Short term effects of various water immersions on recovery from exhaustive intermittent exercise (2011) Eur J Appl Physiol, 111, pp. 1287-1295Eston, R., Peters, D., Effects of cold water immersion on the symptoms of exercise-induced muscle damage (1999) J Sports Sci, 17, pp. 231-238Toumi, H., Best, T.M., The inflammatory response: Friend or enemy for muscle injury? (2003) Br J Sports Med, 37, pp. 284-286Halestrap, A.P., Meredith, D., The SLC16 gene family-from monocarboxylate transporters (MCTs) to aromatic amino acid transporters and beyond (2004) Eur J Physiol, 447, pp. 619-628Baroni, B.M., Junior, E.C.P.L., Generosi, R.A., Groselli, R.A., Censi, S., Bertolla, F., Efeito da crioterapia de imersão sobre a remoção do lactato sanguíneo após exercício (2010) Rev Bras Cineantropom Desempenho Hum, 12, pp. 179-185Knight, K.L., (1995) Cryotherapy in Sport Injury Management, , Champaign: Human KineticsBaldari, C., Videira, M., Madeira, F., Sergio, J., Guidetti, L., Blood lactate removal during recovery at various intensities below the individual anaerobic thresshold in triathletes (2005) J Sports Med Phys Fitness, 45, pp. 460-466Tessitore, A., Meeusen, R., Pagano, R., Benvenuti, C., Tiberi, M., Capranica, L., Effectiveness of active versus passive recovery strategies after futsal games (2008) J Strength Cond Res, 22, pp. 1402-1412Menzies, P., Menzies, C., McIntyre, L., Paterson, P., Wilson, J., Kemi, O.J., Blood lactate clearance during active recovery after an intense running bout depends on the intensity of the active recovery (2010) J Sports Sci, 28, pp. 975-982Denadai, B.S., Gomide, E.B.G., Greco, C.C., The relationship between onset of blood lactate accumulation, critical velocity, and maximal lactate steady state in soccer players (2005) J Strength Cond Res, 19, pp. 364-36

Cardiovascular Responses to Different Resistance Exercise Protocols in Elderly

AbstractIncrease in muscle mass and strength through resistance exercise (RE) has been highly recommended for healthy aging. On the other hand, RE could lead to acute cardiovascular risks prompted mainly by intense blood pressure elevations and cardiac autonomic imbalance. We compared the cardiovascular responses to three different RE protocols performed by 21 healthy elderly on a leg press machine. The protocols tested were high load (80% 1RM) until muscular failure (HL); low load (30% 1RM) until muscular failure (LL); low load, 30 repetitions followed by 3 sets of 15 repetitions, with 50% blood flow restriction (LL-BFR); and a control session (CON). Based on heart rate variability analysis, only LL kept parasympathetic indexes lower than CON at 30 min recovery. By finger photoplethysmography, LL-BFR prompted higher systolic and mainly diastolic blood pressure increments in many sets. The heart rate and cardiac output increase, and total peripheral resistance reduction following exercise were not different among RE protocols. There was no significant post-exercise hypotension and carotid arterial compliance changes. HL seems to be the safer protocol to be recommended for the healthy elderly, because it induces lower blood pressure increments and faster parasympathetic recovery compared to LL and LL-BFR.</jats:p

Monitoring Of Immunological Parameters In Adolescent Basketball Athletes During And After A Sports Season

The objective of the present study was to monitor the immunological and hormonal responses and the occurrence of upper respiratory symptoms in adolescent basketball athletes during the different stages of a sports season. Anthropometric measures, biochemical analyses (interleukin-6, interleukin-10, tumour necrosis factor-alpha, C-reactive protein, testosterone and cortisol), neuromuscular evaluations (standing vertical jumping ability, agility and estimated VO2max) and leukocyte counts were performed at four moments: 72 h before the season (-72 h); before the season (Pre-season); after six weeks, at the end of the preparatory period (Preparatory); and after 20 weeks, at the end of the competitive period (Competitive). Also, the occurrence of upper respiratory symptoms was collected weekly during all stages of the season. There were significant increases in monocytes, cortisol, tumour necrosis factor-alpha and C-reactive protein at the Competitive moment as compared to the Pre-season. In addition, interleukin-10 decreased at the Competitive moment as compared to the Pre-season. Occurrence of upper respiratory symptoms demonstrated increases (38%) during the competitive period as compared to the preparatory. These results suggest that periods of training and competition could increase the occurrence of upper respiratory symptoms in adolescent athletes and this may be due to the unwanted effects of an inflammatory process in response to the excessive stress of training and competition. © 2014 Taylor &amp; Francis.321110501059Bangsbo, J., Iaia, F.M., Krustrup, P., The Yo-Yo intermittent recovery test: A useful tool for evaluation of physical performance in intermittent sports (2008) Sports Medicine, 38 (1), pp. 37-51Bompa, T., Half, G.G., (2009) Periodization 5th edition: Theory and methodology of training, , 5th, Champaign, IL: Human KineticsBreed, R.V., Young, W.B., The effect of a resistance training programme on the grab, track and swing starts in swimming (2003) Journal of Sports Sciences, 21 (3), pp. 213-220Cieslak, T.J., Frost, G., Klentrou, P., Effects of physical activity, body fat, and salivary cortisol on mucosal immunity in children (2003) Journal of Applied Physiology, 95 (6), pp. 2315-2320Concepcion-Huertas, M., Chirosa, L.J., De Haro, T., Chirosa, I.J., Romero, V., Aguilar-Martinez, D., Changes in the redox status and inflammatory response in handball players during one-year of competition and training (2013) Journal of Sports Sciences, 31 (11), pp. 1197-1207Córdova, A., Sureda, A., Tur, J.A., Pons, A., Immune response to exercise in elite sportsmen during the competitive season (2010) Journal of Physiology and Biochemistry, 66 (1), pp. 1-6Dias, R., Frollini, A.B., Brunelli, D.T., Yamada, A.K., Leite, R.D., Simões, R.A., Immune parameters, symptoms of upper respiratory tract infections, and training-load indicators in volleyball athletes (2011) International Journal of General Medicine, 4, pp. 837-844Dinarello, C.A., Interleukin-1 and tumor necrosis factor: Effector cytokines in autoimmune diseases (1992) Seminars in Immunology, 4 (3), pp. 133-145Eliakim, A., Portal, S., Zadik, Z., Rabinowitz, J., Adler-Portal, D., Cooper, D.M., The effect of a volleyball practice on anabolic hormones and inflammatory markers in elite male and female adolescent players (2009) Journal of Strength and Conditioning Research, 23 (5), pp. 1553-1559Foster, C., Monitoring training in athletes with reference to overtraining syndrome (1998) Medicine and Science in Sports and Exercise, 30 (7), pp. 1164-1168Gleeson, M., Immune function in sport and exercise (2007) Journal of Applied Physiology, 103 (2), pp. 693-699Heat, G.W., Macera, C.A., Nieman, D.C., Exercise and upper respiratory tract infections. 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(2000) Medicine and Science in Sports and Exercise, 32 (2), pp. 317-331Tanner, J.M., (1962) Growth at adolescence, , 2nd, Oxford,: Blackwell Scientific PublicationsTimmons, B.W., Exercise and immune function in children (2007) American Journal of Lifestyle Medicine, 1 (1), pp. 59-66Tsai, M.L., Chou, K.M., Chang, C.K., Fang, S.H., Changes of mucosal immunity and antioxidation activity in elite male Taiwanese taekwondo athletes associated with intensive training and rapid weight loss (2011) British Journal of Sports Medicine, 45 (9), pp. 729-734Zaldivar, F., Wang-Rodriguez, J., Nemet, D., Schwindt, C., Galassetti, P., Mills, P.J., Constitutive pro- and anti-inflammatory cytokine and growth factor response to exercise in leukocytes (2006) Journal of Applied Physiology, 100 (4), pp. 1124-113

Carotid intima-media thickness is associated with media rather than intima thickness

CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO ETECNOLOGICOsem informação261169171CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO ETECNOLOGICOCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO ETECNOLOGICOsem informaçã