Dry,hot and red skin and a very rapid heart rate are signs of what heat injury?
Benjamin is said to have great agility.This means that he ___________________________.
A)has the ability to adjust to stimuli
B)has a great range of motion
C)can perform muscle contractions repeatedly
D)has great speed in changing direction
Shivering ceases when the body core temperature drops to between 32°C and 30°C because the body has ______________________.
A)adjusted to its new temperature
B)mobilized fat to just under the skin
C)lost its ability to generate nervous impulses
D)lost its ability to generate heat
Static stretching should not be performed immediately prior to an all-out performance such as sprinting because it ____________________________.
A)increases the range of motion the muscle must move through
B)improves the contractility of the muscle fibres
C)uses up the fuel the muscle needs to perform
D)increases the risk of potential injury