In order to achieve that, muscles need to activate the precise amount of motor units in a determined order to produce the necessary force needed for a specific movement (4). Muscle recruitment pattern is defined as the capability of muscles to create an appropriate, even and well co-ordinated movement. However, in clinical settings manual muscle tests are usually performed when assessing strength, even though that the ability of manual muscle tests to detect variations of muscle strength is argued as poor by some authors (2, 3). Muscle strength can be evaluated with a variety of methods and instruments such as hand-held dynamometers and other instruments measuring muscle isokinetic activation. ![]() The perpendicular force generates a rotating movement the so-called torque (1). Strength is defined as the capability of muscles to produce tension along the long axis, which generates force, both perpendicular and through that axis.
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