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Lecture

Muscle Function Lecture/slides Kine 1020 York University

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Department
Kinesiology & Health Science
Course
KINE 1020
Professor
Angelo Belcastro
Semester
Fall

Description
Muscle Function Static/isometric Contraction: no visible movement of load, although muscle is contracting Dynamic: Visible movement of muscle and load Eccentric: elongation of muscle Concentric: Shortening of muscle Work: Is the product of force multiplied by time Force(kg) X distance (m) = work (kg.m) Power: How much work is accomplished per unit of time Work(kg.m) / time(s) = Power (kg.m/s) Force-Velocity Relationships  Shortening Contractions: greater the external load the slower the velocity, because cross bridges need longer stroke phase  Lengthening Contraction: The greate
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