1. Session 12 Anatomy & Physiology For Sport Muscular Contractions

2. Session Aim/Objectives

Aim

Bythe end of this learning outcome you will

successfully achieve your target grade in the muscular section of

the assignment

Objectives

By the end of the session you will be able to:

Identify the bones, joints and antagonistic muscle pairings of simple sports exercises

2. Explainthe termseccentric, concentric andisometric muscular contractions

3. Identifying the type of muscular contractions occurring in simple sports exercises

3. Recap tasks

Gapped Handout

List pairs without any notes or prompts

Yesterdays handout Agonist/Antagonist

4. Gapped Handout

Pls / L.s .i

..r dds /r d..ds

Trz..s / De.s

Er.. Spin.. / R..t.s abs

Right e...l ob..es / Left el ob..es

Hgs / Q..ps

Gas..us / Ti.s anterior

T.s / s

5. Gapped Handout Answers

Pectorals / Latissimuss Dorsi

Anterior deltoids / Posterior deltoids

Trapezius / Deltoids

Erector spinae / Rectus abdominus

Right external obliques / Left external obliques

Hamstrings / Quadriceps

Gastrocnemius / Tibialis anterior

Triceps / Biceps

6. Agonist or Prime Mover (Biceps contract)

Themuscle doing the work (contracting) and creating themovement is called theagonistorprime mover.

Antagonist (Triceps relax)

The muscle which is relaxing and letting the movement take place is called theantagonist.

7. Task 1

Move around the room to analyse 3 exercises

Complete the blank movement tableon the flip chartpaper.

Each member of the group using one colour pen to insert their answers

10 minutes allowed

8. Muscle Contraction

Isotonic or concentric contraction

Muscle length shortens during contraction

9. Muscle Contraction

Eccentric contraction

Muscle lengthens under tension

10. Muscle Contraction

Isometric

Muscle length stays the same during contraction

Example holding a press up position

11. 12. Task 2

Pairs decide on and write out a definition forthe 3 types of contraction:-

1.Concentric

2.Eccentric

3.Isometric contractions

Extension task -Look at the diagrams below what type ofcontractions is occurring on the agonist and antagonists.?

Press up

(upward phase -Upper arms)Sit up(Upward Phase - Stomach)

13. Task 3

Using the movement tables you started in task 1

Add the type of contractions in the agonists and antagonistsfor each skill

Extensionquestion.

What sports skills require isometric muscular contractions?

14. Summary

Objectives achieved?

Can you:

1.Identify the bones, joints and antagonistic muscle pairings of simple sports exercises?

2.Explain the termseccentric, concentric andisometric muscular contractions?

3.Identify the type of muscular contractions occurring in simple sports exercises?

Next Session the effects of exercise on the muscular system