For optimal contraction, the ideal range of sarcomere length is 75 percent to 130 percent of its normal length. An isometric contraction occurs as the muscle produces tension without changing the angle of a skeletal joint When muscle tension increases in a graded manner that looks like a set of stairs, it is called treppe
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The bottom of each wave represents the point of stimulus.
Treppe, or the staircase effect, is a gradual increase in muscle contraction strength following repeated stimulation
This is different from the rapid cycles of contraction and relaxation described in the question. During incomplete tetanus, the muscle goes through quick cycles of contraction with a short relaxation phase for each If the stimulus frequency is so high that the relaxation phase disappears completely, contractions become continuous in a process called complete tetanus ([link] b). Not the question you're searching for?
Two types of muscle contractions are recognized and defined by whether a muscle shortens when contracted Why do we see increased tension with increased stimulation frequency?
