Auxotonic contraction of a muscle is:
Auxotonic contraction: is the one in which the strength of contraction goes increasing, as the contraction proceeds. This phenomenon is about a single contraction. As the contraction proceeds, more and more motor units may be recruited in the contraction, thus increasing the strength of contraction.This is in skeletal muscle. Staircase phenomenon: is phenomenon for multiple contractions;in which the strength of contraction goes increasing in successive contractions.
Same as isotonic contraction for different lengths of fibres
Based on the principle of "recruitment of motor units"
Combination of isometric + isotonic contractions
Dynamic followed by adynamic contraction
Muscle