A broad range of forces is encompassed by the maximum manual muscle test grade of five.
This retrospective study summarizes the range of knee extension forces associated with the manual muscle test grade of 5. The range of the forces (>560 Newtons) was large and encompassing of more than 86% of measurable forces. These findings help to explain the insensitivity of manual muscle testing and why it has such a profound ceiling effect.
Bohannon
R W
RW
Department of Physical Therapy, School of Allied Health, University of Connecticut, Storrs 06269, USA.
Corrigan
D
D
D000328:Adult; D000367:Age Factors; D000368:Aged; D001696:Biomechanical Phenomena; D016552:Ergometry / Q000706:statistics & numerical data*; D005260:Female; D015577:Geriatric Assessment; D006801:Humans; D007223:Infant; D007719:Knee Joint / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology*