Length Tension Relationship & Whole Muscle Behavior

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Contraction Strength of Twitches • subthreshold stimulus – no contraction at all • threshold intensity and above – a twitch is produced – twitches caused by increased voltage are no stronger than those at threshold
Twitch Strength & Stimulus Frequency Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Twitch <strong>Muscle</strong> twitches (a) Stimuli • when stimulus intensity (voltage) remains constant twitch strength can vary with the stimulus frequency • up to 10 stimuli per second – each stimulus produces identical twitches and full recovery between twitches
Page 1 and 2: Chapter 11 Length Tension Relations
Page 3 and 4: Length-Tension Relationship • opt
Page 5: Behavior of Whole Muscles • This
Page 9: Contraction Strength of Twitches
Page 13 and 14: Incomplete Tetanus Incomplete tetan
Page 15 and 16: Contraction Strength of Twitches It

Length Tension Relationship & Whole Muscle Behavior

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