Introduction: Osteoarthritis is a chronic degenerative disease characterized by pain and joint cartilage damage. Osteoarthritis is a disease that disrupts the homeostasis of cartilage metabolism so that it damages the proteoglycan structure in cartilage caused by age, excessive joint wear, anatomic defects, mechanical or chemical stress, obesity, genetics and humoral. Osteoarthritis generally occurs in the knees, feet, shoulders, hands, spine, and hips. Certain work conditions that require more strenuous physical movements such as lifting heavy weights and going up and down stairs are a risk factor for osteoarthritis. The purpose of this study was to determine the relationship between work history and the degree of osteoarthritis in women aged over 65 years. Methods: This is an analytical observational research with cross sectional study design. The Subject in this research is medical record patient RSUD DR MOEWARDI SURAKARTA Hospital who have met the criteria. Sampling was done using simple random sampling technique. Data was collected and then analyzed using Spearman correlation test. Results: The analysis result from 46 samples using Spearman correlation test obtained a p value of less than 0.05 indicating that there is a significant relationship between work history and the degree of osteoarthritis in women aged over 65 years. Conclusion: There is a significant relationship between work history and the degree of osteoarthritis in women aged over 65 years. Keywords: Osteoarthritis; Occupational History; Degree of OA

Background: Sensation in the form of pain, edema, and stiffness that increases 24-48 hours after high-intensity training, especially eccentric exercises is called Delayed Onset Muscle Soreness (DOMS). One method to accelerate the recovery process and reduce the pain caused by DOMS is with Branched-Chain Amino Acid (BCAA) supplementation. However, until now, there has been limited research that proves the difference in the effectiveness of supplementation time between before and after exercise. Objectives: The aim of this research was to determine the difference in the effectiveness of BCAA supplementation time on DOMS.Methods: This research was an experimental research. A posttest only control group design approach was carried out to measure the effectiveness of supplementation on DOMS as measured by VAS at 24 hours after exercise. A pre and post control group design approach was carried out to measure the effectiveness of supplementation on the alteration in Range of Motion (ROM) as measured by the modified Lower Extremity Functional Scale (LEFS) questionnaire before exercise and 24 hours after exercise. The subjects were classified into 3 groups, namely the control group, 30 minutes before exercise supplementation, and 1 hour after exercise supplementation. Data were analyzed by one way ANOVA and Kruskall Wallis tests. Results Total sample in this study was 30 people. The result of oneway ANOVA test for differences in the effectiveness of BCAA supplementation on VAS was p<0.001. The result of post hoc test between the control and before and after exercise supplementation group was p<0.001, while between the before and after supplementation group was p=0.113. The result of Kruskall Wallis test to measure the effectiveness of supplementation on the alteration (Δ) in LEFS was p=0.336Conclusion: There was no significant difference in the level of pain between the before and after BCAA supplemented group. However, there were significant differences in the level of pain in both of the before and after supplementation group with the control group. There was no significant differences in the alteration of ROM between the three groups

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Sepak bola merupakan olahraga yang berintensitas tinggi sehingga atlet sepak bola terlebih lagi atlet profesional dituntut memiliki kapasitas aerobik (VO2 Max) yang optimal untuk menampilkan performa maksimal di setiap pertandingan. Salah satu aspek yang dapat memengaruhi VO2 Max adalah persentase lemak tubuh. Tujuan penelitian ini untuk mengetahui pengaruh persentase lemak tubuh terhadap kapasitas aerobik (VO2 Max) atlet sepak bola profesional di Indonesia. Penelitian ini menggunakan metode potong lintang dengan pengumpulan data melalui tes serta pengukuran. Populasi penelitian adalah atlet sepak bola Bhayangkara Football Club yang bermain di Liga 1 Indonesia 2021/2022. Sampel penelitian berjumlah 27 orang dengan teknik sampel jenuh. Persentase lemak tubuh diukur menggunakan metode tebal lipatan kulit (skinfold) Jackson Pollock 7 lokasi. Nilai VO2 Max diukur menggunakan metode Yo-Yo Intermittent Recovery Test Level 2. Rata-rata persentase lemak tubuh atlet Bhayangkara Football Club adalah 9,46 ± 2,38% dengan rumus Brozek dan 8,88 ± 2,57% dengan rumus Siri. Rata-rata VO2 Max atlet adalah 56,36 ± 3,41 ml/kg/min. Hasil analisis data dengan uji Pearson diperoleh korelasi yang bersifat negatif antara persentase lemak tubuh dengan VO2 Max (p = 0,042; r = -0,394). Hal ini menunjukkan semakin rendah persentase lemak tubuh maka semakin baik kapasitas aerobik seorang atlet.