Observe three contrasting sporting activities and produce a movement analysis checklist to identify the relevant muscles, joints and bones.

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Task 2 - By Barry Holloway

Observe three contrasting sporting activities and produce a movement analysis checklist to identify the relevant muscles, joints and bones.

The chosen sport to cover is swimming in which I will be analysing the breaststroke, the front crawl and the butterfly strokes.

Sporting Action - Butterfly

The butterfly technique with the dolphin kick consists of synchronous arm movement with a synchronous leg kick. Good technique is crucial to swim this style effectively. The wave-like body movement is also very significant, as this is the key for an easy synchronous over water recovery and breathing. In the initial position, the swimmer lies on the breast, the arms are stretched to the front, and the legs are extended to the back.

Phase - Upper body

Muscles Used - Pectoralis, triceps, Rectus abdominals, Trapezius, Latissimus dorsi, Flexors and extensors of the wrist and hand, deltoids, platysma, Iliacus, obliques.

Contractions Used -

Deltoids are concentric coming out of the water, eccentric going into the water.

2 Triceps - eccentric contraction

3 Biceps - concentric contraction

4 Wrist flexors - are using an isotonic flexion contraction.

5 Pectoralis - concentric contraction

6 Rectus Abdominals - Eccentric coming out of the water, concentric going into the water.

7 Trapezius - Eccentric coming out of the water, concentric going into the water

8 Platysma, Eccentric coming out of the water, concentric going into the water

Joints used - Ball & Socket (Shoulder), Hinge (Elbow), Pivot (neck), Ellipsoid and gliding joint (wrist)

Movements used -

Circumduction in the shoulder

2 Back is hyper extended

3 Flexion and extension in the bicep

4 Flexion and extension in the tricep

5 There is abduction in the arms when entering the water and adduction when pushing through the water.

6 The Platysma is abducting from the body when coming up for breath and when entering back into the water the neck adducts back towards the body.

7 There is flexion and extension in the Rectus abdominals in the breathing patterns of the butterfly stroke.

Phase - Lower Body

Sporting Action - Butterfly

Muscles Used -

Gluteus Maximus, Gastrocnemius, Quadraceps, Hamstrings, Hip muscles (Iliacus, Tensor fasciae latae).

Contractions Used -

. There is a concentric contraction in the gluteus maximus
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2. In the upward phase as the head comes out of the water the gastrocnemius has an eccentric contraction. The legs then straighten out and there is an eccentric contraction this is also the same with the quadriceps and hamstrings.

3. In the undulation phase as the head goes back into the water the hip muscles are pushed out where there is a concentric contraction.

Joints Used - Hinge joint (knee), gliding and ellipsoid joint (ankles), Ball & Socket joint (Hip)

Movements used -

. There is both flexion and extension in ...

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