Project
| # | Title | Team Members | TA | Documents | Sponsor |
|---|---|---|---|---|---|
| 30 | Muscle Fatigue Interface |
Roman Levitas Shalong Chen Tushar Bhushan |
design_document0.document final_paper0.pdf presentation0.ppt proposal0.pdf |
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| When muscles skeletal muscles contract, the number of motor units increases and the frequency of the firing of the motor units increases. When a motor unit, or motor neuron, fires, the nerve contracts the muscle fiber. An action potential is transmitted across the neuromuscular junction and into the muscle fibers. This causes an increase in electric potential which can be detected on the surface of the skin with a surface electromyograph. The activity of several motor units is collected through the EMG. Depending on the size of the muscle, the electric potential from the muscle will be around 200-300µV. Also it has been found that converse relationship between increasing force and increasing median power frequency. Our group's idea is to create an interface which uses an EMG to monitor muscle fatigue. There are two main parts: the EMG hardware/software, and the physical interface itself. As muscular contractions are sustained, the spectrum of the electric signal shifts to the left (lower frequencies) The EMG will utilize the median power frequency of the muscle motor units to serve as an index of fatigue. The physical interface will interpret this and display in the form of LEDs and sound. There are many biological applications including rehabilitation, physical therapy, and research. Our project aims to make an inexpensive application for the general gym-going public. With our device, users can determine how effective their workouts are. Also, it can be used to prevent overtraining. |
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