Biomechanics of Skeletal Muscle (Hamill ch 4, Cram Ch 2, pp 43-64)

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Biomechanics of Skeletal Muscle(Hamill ch 4,
Cram Ch 2, pp 43-64)

• Properties of muscle-tendon function
• Extensibility and elasticity
• Elastic and contractile components
• Irritability and the ability to develop tension
• Structural Org of Skeletal Muscle
• Motor Unit

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Biomechanics of Skeletal Muscle

• The motor unit and Electromyography (Figure from
  lab)
• motoneuron all innervated fibers
• Fiber types I (SO), IIA (FOG), IIB (FG)
• Muscle Fiber Type
• Selective recruitment of fiber types size
  principle
• SO FOG FG

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Recruitment proceeds from smallest fibers to
largest (the size principle)
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Muscle Fiber Types
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Methodology article DeLuca, Carlo J. (1997) The
use of surface Electromyography in biomechanics.
J Appl Biomech, 19135-163. Review
Article Morrish, G. (1999) Surface
electromyography Methods of analysis,
reliability, and main applications Physical and
Rehabilitation Medicine, 11171-205. EMG website
assignment EMG Tutorials and Whitepapers