Lower Extremity Muscle Strength Training Device Using Self-Balancing Scooter
2018
Nowadays, many devices have been developed for muscle strength training, and most of it focus on exercising without any sense of entertainment. To encounter this issue, hover board seems to be the best option since it already has been used for leisure outdoor activity. Recently, hover board showed similar effects on leg muscles caused by other rehabilitation tools like basu ball. Furthermore, the use of mobile application features for a simple health monitoring kit is a trend and seems to be useful. Therefore, the focus of this study is to develop a mobile muscle strength monitoring system for hover board. Gastrocnemius medialis (GM) and tibialis anterior (TA) muscle activation of six normal subjects were recorded using surface electromyography while using the hover board. Arduino Uno and accelerometer were used to record the peak of tilting angle of the hover board surface. Regression analysis were applied to determine the relationship between tilting angle and muscle activation. Muscle Strength Level (MSL) score is used to determine muscle strength condition. Results have shown that the relation between muscle strength and tilting angle existed with correlation, R 2 =0.7702. The estimated muscle strength level was developed based on the regression model equation and RMS-MSL equation. As results, the system able to measure a real-time estimation of MSL based on tilting angle of hover board. However, further study is still warranted to validate and increase accuracy of the system.
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