Background: Musculoskeletal injuries both in sport and recreational activities, at each age level, can lead to immobilization. Injury and immobilization can lead to muscle strength decrease and deconditioning. These conditions can be addressed by provision of strength training therapy especially for people with low exercise tolerance such as the elderly and patients with chronic disease. Existing studies stated eccentric exercise can increase muscle strength with less energy expenditure compared to concentric exercise. However eccentric exercise can lead to muscle damage indicated with an acute CK level increase, and eccentric exercise has not been carried out regularly for post muscle injuries and deconditioned patients. The American College of Sport Medicine (ACSM) stated strength increase and muscle hypertrophy require high intensity load strengthening exercise with a minimum load of 70% 1 Maximum Repetition. The recommended load was given to the subjects in this research. Our pleriminary study intervention was well tolerated by healthy subjects.Aim: Comparing acute CK level alteration in high intensity eccentric and concentric muscle strengthening exercise on untrained healthy subjects.Methods: Randomized pre test and post test group design. Subjects of the study (n = 16) were untrained healthy males. CK level was evaluated by laboratory test.Results: Our study showed decline of acute CK level in both groups with p value 0.65 and 0.76, respectively. No significant differences found on both groups.Conclusion: The increase of acute CK level after five weeks of eccentric strengthening exercise is not higher than that in concentric strengthening exercise.
High body mass index, increased weight-bearing activity, ligament laxity are risk factors for pes planus, however, there is no research that looks for the relationship between these three risk factors in athletes. Adult athletes have a higher prevalence of pes planus than young athletes. In a conceptual framework regarding the etiology of injury in athletes, the interaction of multiple injury risk factors will further increase the risk of injury to athletes. This study aims to determine the relationship between body mass index, type of weight bearing activity and the Beighton and Horan Joint Mobility Index with pes planus in adult athletes. Secondary data from athletes screening of Regional Exercise Center (PUSLATDA) East Java was used in this study. Randomization technique was applied to recruit 96 proper respondents. Binary Logistics Regression test for calculating the relationship between BMI, type of weight bearing activity (high/low impact sport), BHJMI score and Chippaux-Smirax Index (CSI) with the statistical significance of p < 0.05. There was a significant relationship between body mass index and pes planus on the right foot (p = 0.042) and left foot (p = 0.000), as well as BHJMI and pes planus on the left foot only (p 0.032), but there was an increased risk of pes planus in adult athletes as their BMI, type of weight bearing activity, and BHJMI increased. In adult athletes, there is a strong link between body mass index and pes planus in both feet, as well as BHJMI and pes planus on the left foot only; nevertheless, the risk of pes planus increases as body mass index, type of weight bearing activity, and BHJMI rise.
Decreased physical performance of lower extremity increases the risk of injury or repetitive injury. Lower extremity physical performance is objectively reflected in lower extremity motor components consisting of triple leg hop test, one leg stance test, star excursion balance test, and agility T-test. A factor associated with decreased physical performance of lower extremity is highly likely because of rising body mass index (BMI). To analyse the association of body mass index of adult athletes and the physical performance of lower extremity. Secondary data from athletes screening of Regional Exercise Center (PUSLATDA) East Java was used in this study. Analyzed variables were including BMI, triple leg hop test, one leg stance, star excursion balance test, agility T-test. Randomization technique was applied to recruit 91 proper respondents. Normality test, Spearman test for calculating the correlation between BMI and triple leg hop test, one leg stance, star excursion balance test, agility T-test was performed with the statistical significance of p < 0.05. This finding shows that there was a significant correlation BMI and one leg stance foot in athletes, with a correlation coefficient of -0.229 (p-value=0.029). Meanwhile, triple leg hop test, star excursion balance test (SEBT) and agility T-test showed no significant relationship with BMI of athletes. A significant correlation has been found between body mass index and one leg stance test in adult athletes.
Background: Obesity and overweight conditions showed an increase in plasma interleukin-6 (IL-6) concentrations associated with fat mass. Adipocytes produce the proinflammatory cytokine IL-6, which plays a pathogenic role in chronic disease. Increased levels of inflammatory cytokines continuously cause cardiovascular complications, metabolic problems, and even death. Physical exercise is one of the treatments for overweight and obesity that, if done regularly, can reduce the basal value of IL-6. High Intensity Interval Training (HIIT) is a form of high-intensity exercise that recruits larger muscles than moderate-intensity training so that it will have an effect on increasing levels of IL-6 acute response and can reduce basal IL-6 levels with a relatively shorter duration of exercise. Objective: To analyze changes in basal serum IL-6 levels and acute responses before and after high-intensity interval training treadmill exercise with changes in inclination for four weeks in overweight or obese men. Methods: The study was conducted from October to November 2020. Twenty-two overweight or obese men were randomly assigned to the treatment group and the control group. The group did HIIT using a treadmill with incline changes for 30 minutes for 4 weeks. The control group did not receive intervention and was educated to continue physical activity as usual. Measurement of IL-6 levels was carried out before and after treatment. Results: The administration of the HIIT intervention for 4 weeks can reduce basal IL-6 levels. There was a significant decrease (p = 0.04) in the basal IL-6 after the intervention. Likewise, the comparative analysis between the two groups showed a significant difference in reduction after the intervention (p = 0.000). The delta glass effect size obtained a value of 0.866728, which indicates a large effect. Conclusion: HIIT can be proposed as an exercise therapy option to reduce basal IL-6 levels in overweight or obese men.
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