Title: Biomechanics of Skeletal Muscle (Hamill ch 4, Cram Ch 2, pp 43-64)
1Biomechanics 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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4Biomechanics 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
5Recruitment proceeds from smallest fibers to
largest (the size principle)
6Muscle Fiber Types
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20Methodology 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