Senam ritmik adalah gerakan senam yang dilakukan dengan irama musik, atau latihan bebas yang dilakukan secara berirama, senam ritmik sangat erat hubunngannya dengan konsentrasi. Konsentrasi yang kurang baik akan menurunkan penampilan atlet, Latihan Relaksasi salah satu cara untuk meningkatkan konsentrasi, metode relaksasi pada hakikatnya merupakan penciptaan kondisi tubuh tanpa beban. Tujuan penelitian ini adalah untuk mengetahui apakah latihan relaksasi dapat meningkatkan konsentrasi atlet senam ritmik Sumut 2015. Penelitian ini bermanfaat untuk memberikan informasi tentang kondisi konsentrasi atlet senam ritmik sumut Tahun 2015.Penelitian dilakukan di jurusan Ilmu Keolahragaan Universitas Negeri Medan mulai pada bulan September 2015 sampai April 2016, dengan metode eksperimen, dengan pengambilan data pre test dan post test. Populasi dalam penelitian ini adalah berjumlah 7 orang dengan sampel penelitian berjumlah 7 orang yang ditetapkan adalah atlet senam ritmik Sumatera Utara .Hasil  post test pada kategori Visual dengan rata-rata 0,265 dengan skor tertinggi 0,315 dan skor terendah 0,213. Hasil penelitian menunjukan bahwa Ada pengaruh peningkatan konsentrasi melalui latihan relaksasi atlet senam ritmik Sumut Tahun 2015 dengan nilai signifikansi 0.000 (< 0.025) dengan rata – rata nilai 0.26557. Kata Kunci : Senam Ritmik, Konsentrasi, Latihan Relaksasi

Dyslipidemia and sedentary lifestyle are risk factors for atherosclerotic heart disease. The research objective was to determine the effect of aerobic exercise and virgin coconut oil supplementation on the lipid profile of obese women. The research subjects were 20 women with obesity, divided into two groups, namely the experimental group (doing aerobic exercise and VCO supplementation) and the control group (only doing aerobic exercise) with the 43.55±2.21 age, 154.75±0.05 height, 75.75±1.44 weight and 31.69±1.63 BMI. The experimental group did aerobic exercise and VCO supplementation for 8 weeks, while the control group did aerobic exercise without VCO supplementation. Total cholesterol and triglyceride levels were measured before and after aerobic exercise. Using the t test, statistical analysis was conducted and the significance level of the test was considered to be p<0.05. The results showed that the combination of aerobic exercise with VCO supplementation resulted in a more significant reduction in triglyceride levels and cholesterol compared to aerobic exercise (p = 0.001). The conclusion is that the combination of aerobic exercise with VCO supplementation can reduce triglyceride levels and total cholesterol, thus preventing cardiovascular disease.

UNIMED). and test the effectiveness of E-Module products. Research with RnD with ADDIE development. The sample is class A Regular 2020 around 30 students. Data collection techniques used observation, interviews, questionnaires and documentation. The data obtained then the researchers analyzed qualitatively and quantitatively. Based on the results of this development research, the following conclusions can be drawn. The total average validation of the E-Module with the Tutorial Model in the Massage Sports Course of the PJKR Department is 80.5%. By referring to these criteria, it can be concluded that the E-Module with Tutorial Model in the Massage Sports Course of the PJKR that was developed meets the validity criteria in the "valid" category.