From the observation of 24 athletes Taekwondo Jayabaya produced as much as 79.1% - 95.8% of athletes have the physical ability, especially the speed and agility under average value. This study aims to determine the effectiveness of exercises body weight strength training and plyometric to increase physical ability. The study used an experimental research method with a quasi-experimental type using a 2x2 factorial design. The sampling technique used purposive sampling based on inclusion criteria. The total number of samples used is 24 athletes who will be divided into 2 exercise groups. The study was conducted on the Jayabaya Taekwondo team for 6 weeks. Data collection techniques used 35 meters speed test and Illinois agility run test. Variable variance analysis using MANOVA test. In the MANOVA test, the value is obtained sig. multivariate test (0.00) and between subjects effects test of exercise on speed and agility (0.00). The results of descriptive statistics on exercises body weight strength training and plyometric on speed time (5.12)>(4.57), and agility time (19.53)> (17.64). The conclusion of this study is that body weight strength training and plyometric exercises significantly affect the physical ability of taekwondo athletes.training was Plyometric more effective in increasing the speed and agility of taekwondo athletes during the 6-week training program.

Objectives The prevalence of obesity in childhood and adolescence is a major public health problem and has increased dramatically over the last few decades. More attention is needed because it is closely related to some non-communicable diseases and metabolic syndrome. The aim of this study was to investigate the correlation of body mass index and cardiorespiratory fitness to the prevalence of metabolic syndrome in adolescents. Methods The sample of the study was 44 adolescents. This research is an observational analytic study. The sample of this study measured body mass index, cardiorespiratory fitness, and metabolic syndrome through measurement of abdominal circumference, blood pressure, triglycerides, HDL-cholesterol, and blood fasting glucose. Results The results of the simultaneous test showed that both body mass index and cardiorespiratory fitness had a significant effect on the risk of metabolic syndrome (p = 0.000). The higher BMI tended to have metabolic syndrome 1.746 times higher than not having metabolic syndrome. The propensity of the unfit condition of cardiorespiratory having metabolic syndrome is 4.283 times higher than the one that has the fit condition. This logistic regression model is quite good because it can predict correctly 72.7% of the conditions that occur. Conclusions This study showed that the higher body mass index and cardiorespiratory fitness conditions can be used as predictors of metabolic syndrome in adolescents.

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Background: Percutaneous coronary intervention (PCI) is one of the most effective therapies in patients with coronary artery disease (CAD) after the attack. Cardiac rehabilitation (CR) makes an important contribution to secondary prevention of cardiac events. The World Health Organization defines CR as the sum of activities required to influence favorably the underlying cause of the disease, as well as to ensure the best possible physical, mental and social conditions, so that they may, by their own efforts, preserve or resume when lost as normal a place as possible in the life of the community. This study aimed to estimate the effects of CR on NT-proBNP and METs among patients with CAD after PCI. Subjects and Method: This was a cohort study carried out at Dr. Moewardi Hospital, Surakarta, Central Java, from November to February 2018. A sample of 18 patients with CAD after PCI was selected for this study. The dependent variables were NT-proBNP, METs, and quality of life. The independent variable was CR. The three outcome variables were measured before and after CR. The data before and after CR were compared and tested by t-test. Results: NT-proBNP level in CAD patients after PCI (Mean= 97.17 ng/ml) was lower than before PCI (Mean= 1,629.4 ng/ml), and it was statistically significant. METS value in CAD patients after PCI (Mean= 8.31 ml/kg) was higher than before PCI (Mean= 6.41 ml/kg), and it was statistically significant. The quality of life also increased significantly. Conclusion: Cardiac rehabilitation is effective to lower NT-proBNP level, as well as to increase METS value and quality of life of CAD patients.

This research was motivated by the curiosity of the researchers about supplements those were often consumed by sportsmen, especially on members of the fitness center so that this study discussed the consumption of ergogenic supplements in physical fitness training (survey of members of the fitness center in Sleman district). The purpose was to obtain an empirical picture of the phenomenon of consumption of ergogenic supplements, understanding of ergogenic supplements, the reality of consuming ergogenic supplements, and the impact of consumption of ergogenic supplements on members of the fitness center in Sleman Regency.The research subjects used in this study were members of the fitness center in Sleman Regency which numbered 258 people. The method of data collection was through surveys conducted at 12 fitness centers located in Sleman district and research instruments using questionnaires. The data analysis technique used is descriptive statistics and chi-square test with p <0.05 to assess the relationship between the variables chosen.The results showed that as many as 34.1% of members consumed ergogenic supplements, 52.3% of members were highly knowledgeable about ergogenic supplements, 27.9% of members consumed only 1-2 kinds of ergogenic supplements, and 33.7% of members felt changes after taking ergogenic supplements. Besides that, it was found several variables related to the consumption of ergogenic supplements, namely age with P-value 0.005, gender with P-value 0.000 and education with P-value 0.029.