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Fast twitch: ability to produce a large force, provide strength for sports like weightlifting.;Slow twitch: do not tire easily, ability to perform over a long period of time (e.g. a full match).
(4 marks)Vasoconstriction – arterioles feeding the organs that don't need blood during exercise become smaller therefore blood is redirected away from these tissues.Vasodilation – arterioles feeding the a...
Physical Activity can have a number of effects that occur immediately. The first of which being an increase in heart rate to provide working muscles with sufficient oxygen to avoid the building of lactic ...
Flexion occurs at the elbow joint, this is due to the contraction of the Biceps Brachii (the agonist) and the relaxation of the Triceps Brachii (the antagonist) as muscles work in antagonistic pairs.
As a person prepares to kick a ball, their hamstrings contract which causes their knee to bend/flex. Simultaneously, their quadriceps relax and lengthen. Here, the hamstring is the the agonist and the qua...
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