The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon...

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The Biophysics of Contraction

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Transcript of The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon...

Page 1: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

The Biophysics of Contraction

Page 2: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

An Apparatus for Measuring Tensile Forces in a Muscle

Muscle

tendon and clamp

tendon and

clamp

L

Force Transducer

Page 3: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

An Ideal Elastic Material-- Compliance Plot

Page 4: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

An Ideal Elastic Material-- Elastance Plot

Page 5: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

More About Elastance (Stiffness) and Compliance

Page 6: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

Non-Linear Effects

Page 7: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

Hysteresis

Page 8: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

The Effect of Stretching a Relaxed Muscle ("Passive Stretch")

Page 9: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

The Effect of Stretch on a Contracting Muscle ("Active Stretch")

Page 10: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

Calculation of Contractile Forces vs. Length

Page 11: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

Contractile Force and Muscle Length

Page 12: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

Explanation for Active Force vs. Length

Page 13: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

Latent Period

Page 14: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

Overloads on Muscles

Page 15: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

A Mechanical Model of a Muscle

Page 16: The Biophysics of Contraction. An Apparatus for Measuring Tensile Forces in a Muscle Muscle tendon and clamp tendon and clamp L Force Transducer.

Viscous Loss


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