Background: Individuals with obesity will experience an increase in the angle of calcaneal eversion which has an impact on increasing the workload of the muscles to maintain joint stability, so that tension occurs in the gastrocnemius muscle which affects its extensibility ability. Increasing the angle of calcaneal eversion will cause changes in lumbopelvic alignment so that it can cause low back pain. The aim of the study was to determine the correlation between the angle of calcaneal eversion and gastrocnemius extensibility with nonspecific low back pain in obese women.Methods: This research was a cross sectional analytic study with simple random sampling technique. The number of samples are 78 women aged 36-55 years old. The variables measured were functional pain reduction score in nonspecific low back pain with modified Oswestry disability questionnaire, the angle of calcaneal eversion and gastrocnemius extensibility with goniometer.Results: Our study showed that there was no significant correlation between the angle of calcaneal eversion and gastrocnemius extensibility. However, there was a significant correlation between gastrocnemius extensibility and low back pain at the level of 0.033. In addition, there was a significant correlation between the angle of calcaneal eversion and low back pain at the level of 0,000.Conclusions: There was a significant correlation between the angle of calcaneal eversion and gastrocnemius extensibility with low back pain. However, the angle of calcaneal eversion is not directly related to gastrocnemius extensibility.

Decreased balance can cause various obstacles and can cause injury to the elderly, one of which is falling. Falls cause hip fractures and more serious injuries such as head injuries. The purpose of this study was to compare the effectiveness of the Otago home exercise. The research sample consisted of 30 respondents who were divided into the treatment group who received the Otago home exercise programme (OHEP) training as many as 15 respondents and the control group who received the balance strategy exercise (BSE) training as many as 15 respondents. After training 3 times/week for 4 weeks results were obtained, the difference in the average increase in dynamic balance was analyzed by paired sample t test before and after the intervention in the OHEP group with a p=0.000 (p<0.05) and the BSE group with a p=0.000 (p<0.05) which means that there is a significant difference in the increase in dynamic balance before and after training. Independent t test obtained p=0.000 (p<0.05) which means there is a significant difference between the two groups. The average percentage increase in dynamic balance in the OHEP group was greater than the BSE group with a difference of 12.36%. In conclusion based on the results of the study, it can be concluded that the provision of the OHEP is better at improving dynamic balance than the BSE in the elderly.