Obesity is a worldwide epidemic that increases the risk of several well-known co-morbidities. There is a complicated relationship between adipokines and low-grade inflammation in obesity and cardiovascular disease (CVD). Physical activity practices have beneficial health effects on obesity and related disorders such as hypertension and dyslipidemia. We investigated the effects of 6 and 12 months of moderate physical training on the levels of adipokines and CVD markers in normal weight, overweight and obese volunteers. The 143 participants were followed up at baseline and after six and twelfth months of moderate regular exercise, 2 times a week, for 12 months. The volunteers were distributed into 3 groups: Normal Weight Group (NWG,), Overweight Group (OVG) and Obese Group (OBG). We evaluated blood pressure, resting heart rate, anthropometric parameters, body composition, fitness capacity (VO2max and isometric back strength), cardiovascular markers (CRP, total cholesterol, LDL-c, HDL-c, homocysteine) and adipokine levels (leptin, adiponectin, resistin, IL-6 and TNF-alpha). There were no significant changes in anthropometric parameters and body composition in any of the groups following 6 and 12 months of exercise training. Leptin, IL-6 levels and systolic blood pressure were significantly elevated in OBG before the training. Regular exercise decreased HDL-c, leptin, adiponectin and resistin levels and diastolic blood pressure in OVG. In OBG, exercise diminished HDL-c, homocysteine, leptin, resistin, IL-6, adiponectin. Moderate exercise had no effect on the body composition; however, exercise did promote beneficial effects on the low-grade inflammatory state and CVD clinical markers in overweight and obese individuals.

Muscle damage is one of the most important factors that affect muscle fatigue during endurance exercise. Recent evidence suggests that the renin–angiotensin system impacts on skeletal muscle wasting. The aim of this study was to determine association between the AGT Met235Thr, ACE I/D and BDKRB2 −9/+9 polymorphisms with inflammation, myocardial and muscle injury induced by endurance exercise. Eighty-one Brazilian male runners participated in this study and completed the International Marathon of Sao Paulo. Muscle and myocardial damage markers (alanine transaminase, ALT, aspartate transaminase, AST, lactic dehydrogenase, LDH, creatine kinase, CK, Troponin, pro BNP, myoglobin, and CK-MB) and inflammatory mediators (IL-6, IL-8, IL-10, IL12p70, IL1β, and TNF-α) were determined one day before, immediately after, one day after, and three days after the event. Muscle damage was also determined fifteen days after race and angiotensinogen (AGT) Met235Thr, angiotensin-converting enzyme (ACE) I/D, and Bradykinin B2 receptor (BDKRB2) −9/+9 polymorphisms were determined. Marathon race participation induced an increase in all muscle damage and inflammatory markers evaluated (p < 0.0001). The muscle damage markers, troponin and pro BNP, CK and LDH and inflammatory markers, IL-6, IL-8, IL-1β and IL-10 were also higher in ACE II genotype immediately after race, compared to DD genotype. The percentage of runners higher responders (>500U/I) to CK levels was higher for II genotypes (69%) compared to DD and ID genotypes (38% and 40%, respectively) immediately after. Troponin, pro BNP and IL-1β, IL-8 levels were also elevated in AGT MM genotype compared to TT genotype athletes after and/or one day after race. BDKRB2 −9/−9 had pronounced response to LDH, CK, CK-MB and ALT and AST activities, myoglobin, troponin, IL-6, IL-8 levels immediately, one day and/or three days after race. The percentage of runners higher responders (>500U/I) to CK levels was greater for −9−9 and −9+9 genotypes (46 and 48%, respectively) compared to +9+9 genotypes (31%) immediately after. ACE II, AGT MM, and BDKRB2 −9−9 genotypes may increase the susceptibility to inflammation, muscle injury after endurance exercise and could be used to predict the development of clinical conditions associated with muscle damage and myocardial injury.

Abstract--This study investigated the effect of a stretch break program (SBP) on the flexibility, strength and musculoskeletal complaints of storage (SW) and administrative (AW) sector workers. Twenty-six male workers were randomly selected: 16 workers from the storage sector and ten workers from the administrative sector. We applied the Physical Activity Questionnaire and Musculoskeletal Questionnaire and evaluated flexibility and grip strength before and after 6 months of the SBP. The SPB decreased the SW group members' complaints of paresthesias and numbness in the upper body and total body. The SPB reduced the AW group members' complaints of paresthesias and numbness in the upper body. Furthermore, the SPB improved cervical, trunk and left shoulder flexibility in the SW group and improved cervical and shoulder flexibility and grip strength in the AW group. The SBP contribute to improve flexibility and musculoskeletal complaints in the regions that are affected by higher rates of work-related injuries.Keywords: flexibility, musculoskeletal symptoms, strength, stretch break, workersResumo--"Programa de ginástica laboral melhora a flexibilidade e força de preensão e reduz queixas osteomusculares em trabalhadores." O presente estudo investigou o efeito de um programa de ginática laboral (PGL) na flexibilidade, força e sintomas osteomusculares nos trabalhadores dos setores almoxarifado (GTA) e administrativo (GTAD). Vinte e seis trabalhadores do sexo masculino foram selecionados aleatoriamente: dezesseis GTA e dez GTAD. Aplicamos os questinários de atividade física e de sintomas osteomusculares e avaliamos a flexibilidade e força de preensão manual antes e após seis meses da PGL. O PGL diminuiu o número de queixas de parestesias e dormência dos membros superiores e no corpo total no GTA. O PGL reduziu o número de queixas de parestesias e dormência dos membros superiorese no GTAD. Além disso, o PGL melhorou a flexibilidade da cervical, do tronco e do ombro esquerdo no grupo GTA e a flexibilidade da cervical e ombro e força de preensão no grupo GTAD. O PGL contribuiu para melhoria da flexibilidade e queixas osteomusculares nas regiões corporais com maiores índices de lesões provenientes do trabalho.Palavras-chave: flexibilidade, força, ginástica laboral, trabalhadores, sintomas musculo-esqueléticos Resumen--"Programa de gimnasia laboral mejora la flexibilidad y la fuerza de prensión y reduce las quejas musculoesqueléticas en los trabajadores." El presente estudio investigó el efecto de un programa de gimnasia laboral (PGL) en la flexibilidad, la fuerza y síntomas musculoesqueléticos en los sectores trabajadores de almacén (GTA) y administrativa (GTAD). Veintiséis trabajadores de sexo masculino fueron seleccionados aleatoriamente: dieciséis GTA y diez GTAD. Aplicamos las questinários de la actividad física y los síntomas musculoesqueléticos y evaluamos la flexibilidad y fuerza de presión antes y después de 6 meses de PGL. El PGL disminuyó el número de quejas por parestesias y de entumecimiento de la parte superior d...