The Correlation between Physical Activity with Body Mass Index in Obesity Patient with Knee Osteoarthritis

: Obesity in Indonesia has significantly increased every year. Obesity occurs due to an imbalance of input and output of energy, causing the accumulation of body fat. Weight gain causes stress to knee joints and prone to osteoarthritis that will lead to pain during walking. Decreasing the level of physical activity (PAL) in obese patients with osteoarthritis will risk them to deconditioning syndrome which will aggravate obesity. The purpose of this study is to correlate the level of physical activity in obese patients with osteoarthritis of the knee who was treated at the obesity clinic at Cipto Mangunkusumo Hospital. A cross-sectional method with thirty-eight consecutive samples. Inclusion criteria are: early elderly patients, male and female, who were diagnosed with obesity with knee osteoarthritis, can walk independently without assistance, can communicate well. Anamnesis is conducted for one full day activity for three days a week, and the average energy expenditure is calculated. The basal metabolic rate is calculated by the Harris-Benedict equation and then the level of physical activity of the patient is determined. The results of this study are that there is a weak positive correlation between PAL and body mass index (BMI) in obese patients with knee osteoarthritis.