Matt has decided he would like to train for a marathon. he decides to change the amount of weight he lifts twice a week from 30 to 45 pounds. which principle of overload is at work? frequency intensity time progression

intensity

Explanation:

Training intensity is one of the most important variables for the constant control and maintenance of training results.

Depending on the type of physical activity, intensity can be measured in different ways, for example:

As stated above, the intensity of physical training may be related to the increase or decrease in weight carried during training. From this we can conclude that if Matt decides to change the amount of weight he raises twice a week from 30 to 45 pounds, he is working on the intensity of his training.

not 100% sure but i'm gonna say it's

retains water

fine grained

and is loose

your welcome

brainliest? (;

the answer is a