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A warm-up is essential before any exercise.

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A warm-up is essential before any exercise. Young children need less time to warm up due to increased flexibility and suppleness. As we get older the need to warm-up is greater to prevent injury. Why warm up? 1. Helps mental preparation; 2. Warms up the muscles; 3. Helps prevent injury; 4. Increases blood flow; 5. Removes stiffness. To Start: - you should do a small jog around the pitch, beginning at point X. Then on the second lap do some stretches at each corner. The order of events is as follows: - Following the directions from the diagram should create a good progressive warm-up, not straining the muscles too much too quickly causing possible muscle strain and injury. ...read more.


Stretches * Anterior Shoulder Stretch * Posterior Shoulder Stretch * Triceps stretch * Chest Complex * Back Pair * Wrist Complex Physiological effects of warm-up on skeletal muscle Spending time on a warm-up will improve performance. Warm-up can increase: - * Speed of muscular contraction; * Strength of muscular contraction. These benefits, due to an increase in muscle temperature are: - * Increased strength of contraction due to improved elasticity of muscle fibres; * Faster speed of contraction and relaxation of the muscle fibres due to higher muscle temperature; * Faster speed of contraction due to an increased speed of nerve transmission to muscle temperature; * Increased speed of strength of contraction due to an improvement in co-ordination between antagonistic pairs because ...read more.


Vasoconstriction of the arterioles/precapillary sphincters to organs and therefore increasing blood flow to muscles and decreasing blood flow to organs; 2. Vasodilation of muscle arterioles/precapillary sphincters increasing blood flow delivery to working muscles. * Increased body/muscle temperature causing more rapid increase in transport of enzymes required for energy systems and muscle contraction; * Increase in body muscle temperature which: - 1. Decreases Blood Viscosity, improving blood flow to working muscles; 2. Increases the dissociation of oxygen from haemoglobin in muscle tissues. * Decrease (OBLA) onset of blood lactic acid due to an early onset of anaerobic work when a warm-up is not carried out. ?? ?? ?? ?? SECTION A - ROSS WHITE Warm up 1 ...read more.

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Here's what a teacher thought of this essay

4 star(s)

This latter section is physiologically sound and accurate, but gives the impression of being copied out of a book. The art of 'PARAPHRASING' or re-wording someone else's is essential at all levels of study. It is fine to use someone else's knowledge or information, BUT they must be acknowledged in a citation.
This writer could use practical examples in this section to show that they REALLY did understand! If you can re-apply theory, you probably get it!!!

Marked by teacher Lindsay Taverner 08/03/2012

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