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Effects of Exercise on the Muscular System

Effects of Exercise on the Muscular System. To develop your understanding of long-term and short-term effects of exercise on the muscular system. Activity. In your pairs, draw two columns, like below List as many effects of exercise on the Muscular System as possible.

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Effects of Exercise on the Muscular System

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  1. Effects of Exercise on the Muscular System To develop your understanding of long-term and short-term effects of exercise on the muscular system

  2. Activity • In your pairs, draw two columns, like below • List as many effects of exercise on the Muscular System as possible

  3. Short Term Effects of Exercise on the Muscular System • Increased energy demands • Lactic acid build up • Muscle fatigue • These are all body responses

  4. Muscle Contractions • Also an immediate effect of exercise • Two types: • Isometric Muscle Contractions • Isotonic Muscle Contractions

  5. Isometric Muscle Contractions • No muscle movement • Muscle neither contracts or relaxes • This type of muscle contraction is used for static strength • Think of examples of when this could be used • Rugby scrum • Handstand in gymnastics

  6. Isotonic Muscle Contractions • Muscles work in pairs to contract and relax to cause movement • Used for explosive and dynamic actions • This muscle contraction is normally used to produce speed and power • Think of examples when this muscle contraction is used • Tennis serve • Jumping for the ball in football

  7. Activity! • There are four stations around the room • Working in your fours, move to the station closest to you • Try out the activity • When you get there, find the following and write in your books: • The name of the activity • Is it an Isometric/Isotonic muscle contraction? • Why? • Which muscles are used? • You have three minutes at each station!

  8. Station 1: Wall Stand • Isometric muscle contraction • There is no movement in any muscle – they all stay the same length • Main muscles involved: quadriceps, hamstrings

  9. Station 2: Burpee • Isotonic muscle contraction • The muscles are working in antagonistic pairs to contract and relax the muscles to cause movement • Main muscles involved: quadriceps, hamstrings, gluteals, gastrocnemius

  10. Station 3: Star Jump • Isotonic muscle contraction • The muscles are working in antagonistic pairs to contract and relax the muscles to cause movement • Main muscles involved: gluteals, deltoid, lattisimus dorsi, pectorals

  11. Station 4: Tug of War • Isometric muscle contraction • There is no movement in any muscle – they all stay the same length • Main muscles involved: biceps, triceps, quadriceps, hamstrings

  12. Long Term Effects of Exercise on the Muscular System • Increased muscular strength • Muscle hypertrophy • Muscle hypertrophy is the increase in the size of the muscle • These are body adaptations

  13. What is the other effect of exercise on the muscular system? • It is a negative effect of exercise

  14. Injury • Muscle strain • Where the muscle fibre tears • Overstretching

  15. Effects of Injuries on the Muscular System • Can’t participate in sport whilst injured • Leads to muscle wastage • This is called muscleatrophy

  16. Treatment of Muscle Injuries • R • I • C • E

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