Question

For EMG measurement technique come up with something you could measure with EMG MEASUREMENT that could be meaningful and help people for some reason. Consider what challenges you may face and what you might expect to see. EMG MEASUREMENT ON weight LIFTINGtING OR FOR REHABLITAION

• What would you measure?
• Why would this help people?
• What kinds of challenges would you encounter?
• What would you expect to find?

Answer 1

Electromyography (EMG) , the presence of electric potential differences in muscles is the result of motor unit action potentials produced by the central nervous system (CNS) .These electric potential differences can be measured using EMG and reported as an EMG amplitude.

EMG measures muscle response or electrical activity in response to a nerve's stimulation of the muscle. The test is used to help detect neuromuscular abnormalities.

EMG results are often necessary to help diagnose or rule out a number of conditions such as muscle disorders , muscular dystrophy , diseases affecting the connection between the nerve and muscle such as myasthenia graves.

Challenges encountered during EMG Recordings of electrical activity of muscles can be contaminated by interference from the electrical supply , mechanical artifacts , stimulus artifacts and activity of other muscles.

Expect to find in EMG are An abnormal EMG shows in two ways , first the muscle may show electrical activity at rest . And in the second one , the muscle may show abnormal electrical activity during contraction. This shows up an abnormal action potential pattern with changes in size or shape of the wave. Together EMG can spot disorders of nerves , muscles or both . EMG may be done to find the cause of symptoms such as muscle weakness , deformity , stiffness and shrinkage.