When would it be appropriate to consider a sports drink instead of water to re-hydrate? •a. when lifting heavy weights for 30 minutes. •b. when running for less than 20 minutes. •c. when doing crunches and sit-ups for 15 minutes. • d. when walking for less than 45 minutes.

A. When lifting heavy weights for 30 minutes

Explanation:

it is a high energy performance task and goes for the longest time, This is the correct answer

these are common warning signs of overtraining syndrome:

washed-out feeling, tired, drained, lack of energy

mild leg soreness, general aches, and pains

pain in muscles and joints

sudden drop in performance

insomnia

headaches

decreased immunity (increased number of colds, and sore throats)

decrease in training capacity/intensity

moodiness and irritability

depression

loss of enthusiasm for the sport

decreased appetite

increased incidence of injuries.

a compulsive need to exercise