muscular system

short term effects
1. 1. when exercise demand for oxygen is higher
2. 2. waste products are created
3. 3. blood is pumped to try and get rid
4. 4. demand is too high = lactic acid
5. 5. regular exercise = cope with demands better
long term effects
1. muscles grow in strenth and size
2. hypertrophy = muscle mass increase
3. lower risk of injury
4. more power
isometeric - contraction is an increase in tension but length does not alter
isotonic - contraction is limb movement
muscle atrophy - stop in strength training = loss of muscle mass
injury
1. tear, strain or pull
  1. muscle fibres tear from atachement to a tendon
2. to reduce do warm up
3. RICE
  1. Rest - stop training
  2. ice - cold to injury = pain relief
  3. compresson - pressure to injury so limits swelling
  4. elevation - raise injury reduces swelling
MUSCLE MOVEMENTS
1. flexion - decrease angle at joint
  1. bicep flex at elbow
  2. abs - flex at hip
  3. hamstring flex at knee
2. extension - increase angle of joint
  1. tricep - extend at elbow
  2. quad extend at knee
  3. gluteus extend at hip
  4. gastrocnemius - extend at knee
3. abduction - take away from centre line
  1. deltoids abduct at shoulder
4. adduction - add to centre line
  1. pectorals adduct at shoulder
  2. trapezius adduct at shoulder
  3. lattimuss dorsi adduct at shoulder
antagonistic pairs
1. origin - where muscle is fixed
2. insertion - where muscle moves
muscle types
1. cardiac
  1. automatically works
  2. heart
  3. involutary
  4. never rests
2. involutary
  1. works automatically
  2. not controlled
  3. intestines & blood vessels
3. volutary
  1. controlled
  2. attach to skeleton & provides shape
fibres
1. fast twitch
  1. quicker & stronger
  2. short bursts
  3. short term power
2. slow twitch
  1. replace oxygen supplies when working
  2. less violent
  3. long periods of time
concentric - shortens & flattens
eccentric - lengthens & flattens

Nächster

muscular system

Beschreibung

Zusammenfassung der Ressource

Medienanhänge

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