KPE161 motor unit recruitment

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Last updated 2:50 AM on 2/4/26
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4 Terms

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Size principle of motor unit recruitment

  • motor unit use is related to size and ease of triggering an action potential

2
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Key points of SPoMUR

  • the smaller the soma, the easier to recruit

  • Slow units have smaller bodies

  • Slower units will be recruited first

3
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ST vs FT

  • Once fatigue occurs then fibre produces no force

  • Some ST can produce virtually unlimited contraction- postural muscles

  • Some FT can only produce 1 contraction

4
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Training implications

  • rather than train energy systems, we should train movements

  • Functional training

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