![]() One useful way to utilize MMT is to test qualitatively for contraction quality, timing, and compensation of other muscle groups. 2 Today, manual muscle tests are known as good tests for weakness, but it’s well-known that they are not so accurate when it comes to assessing strength. In 1956, Beasley found that manual muscle testing was only able to detect weakness in knee extensors once the difference between sides was greater than 50 percent. These procedures may not be very accurate in those with higher levels of strength, a fact we have known for quite a long time. ![]() MMT was a quick, simple, and reliable way to check each muscle group for the primary effect of polio: muscle weakness. ![]() Henry and Florence Kendall standardized and popularized the test in the 1940s during polio outbreaks. Manual muscle testing (MMT) is a widespread, nearly universal test used by physical therapists and other allied health professionals to determine muscle strength and weakness in their patients. ![]()
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