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Types of Muscle Contractions. How Muscles Generate Force. A REALLY bad Cramp Pushing the Wall Bicep Curl Landing from a high place. Twitch Contractions. A quick, jerky response to a stimulus Play a minimal role in normal muscle activity.

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types of muscle contractions

Types of Muscle Contractions

How Muscles Generate Force

A REALLY bad Cramp

Pushing the Wall

Bicep Curl

Landing from a high place

twitch contractions
Twitch Contractions
  • A quick, jerky response to a stimulus
    • Play a minimal role in normal muscle activity
tetanic contraction
Produced by a series of stimuli bombarding the muscle in rapid succession

Contractions melt together andresult in a sustained contraction or tetanus

A BAD Cramp

Tetanic Contraction
isometric
The muscle if fired against a load, but DOES NOT Shorten or Lengthen

Fires at a constant Length

Carrying an object in front of you without dropping it

Isometric
concentric
A muscle firing against a load Shortenscausing movement at the joint

Isotonic

Resistance through most of the ROM

Resistance decreases after a certain point

Gravity Assists

Isokinetic

Resistance through the full ROM

Concentric
eccentric
Muscle fibers are lengthening WHILE they are firing

Controlling Movement

Lowering a heavy weight

Landing from a jump

Decelerating

Eccentric