It is known that coffee has much phenolic components such as flavonoids and chlorogenic acids (CGAs) content for neutralizing oxidative stress. Gayo-arabica coffee is a typical arabica coffee which widely used by Gayo people in Aceh, Indonesia. The coffee plants also grow in Gayo. However, it has not clearly understood its effect for health. The study aimed is to analyze the Gayo-arabica coffee consumption on the levels of malondialdehyde (MDA) as an indicator of damage cells due to oxidative stress and superoxide dismutase (SOD) as a marker of antioxidant enzyme, after performing a single bout submaximal physical exercise. Male sedentary subjects (21-27 y.o), consisted of 36 men, divided into 3 groups: control (zero of coffee), Gayo1 (15 g coffee in 200 ml water), and Gayo2 (20 g coffee in 200 ml water). Coffee was given once, after rockport test as a single bout submaximal physical exercise. MDA serum and SOD serum were taken after 1 hour of coffee drinking. MDA serum decreased significantly in Gayo1 (8.01 uM) and Gayo2 (10.36 uM), compared to control (26.82 uM). SOD serum increased significantly in Gayo1 (114.81 ng/ ml) and Gayo2 (101.48 ng/ml), compared to control (24.024 ng/ml). Nevertheless, there was no significantly different between Gayo1 and Gayo2 on MDA and SOD serum (p≥0.05). We suggest that the Gayo-arabica coffee after single bout submaximal exercise can diminish stress oxidative in sedentary people.

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This study used experimental research, with a Randomized Pre and Post Test Group Design. This study consisted of 3 groups: the Pump It Up group, the Zig Zag Run game group, and the Shuttle Run game control group with a sample of each group of 10. The Agility Illionis Test was chosen as the agility test instrument. The exercise was done three days a week for four weeks. Anova test results showed that there was a significant effect of Pump It Up and Zig Zag Run exercises on agility with indigo p <0.05, and LSD test showed there were differences in Pump It Up with Ziz Zag Run, there were differences in Pump It Up and Zig Zag Run with indigo p <0.05. The conclusion of this research was that Pump It Up and Zig Zag Run exercises increase agility

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Bone is a complex tissue consisting of cells and matrix. Mass and thick bone mass has a dynamic addition and subtraction through the process of remodeling (bone matrix absorbed and formed again). Bone is formatted by osteoblast cell and resorption by osteoclast cell. Osteoblasts produce a matrix of osteoid, which is composed mainly of type I collagen, and osteoclast removes bone tissue by removing its mineralized matrix and breaking up the organic bone. Bone remodeling purpose to defend shape and structure of bone. the purpose of this study is to prove that submaximal-intensity exercise and salmon calcitonin improve bone density in growing rat this research method uses design of the randomize posttest only control group design. We compered femur bone density in 24 male norvegicus rats aged 6 weeks that were divided into 4 groups: controls, calcitonin, exercise, combine. Exercise group swam 3 times a week in submaximal intensity, calcitonin group injected synthetic salmon calcitonin 2 iu /100 gram of rat weight every day and combine group did both of it. After 8 weeks, rat femur bone density measured using ultrasound. the result: there are significant differences in bone density between group 1 (control) and group 4 (combine) with p = 0.001, thus the p value &lt;0.05 indicates that there is a significant difference to the average density in both groups. While comparisons to other groups found no significant difference because the value of p&gt; 0.05. the benefits of this research are calcitonin salmon and submaximal-intensity exercise increase the density bone in the growth period. High bone density is mean the bone is strong and health, not porous and fragile so decrease bone fracture risk. increase the bone density in of growth period make the bone get the best mass, and avoid from early osteoporosis.