Is Stretching Exercise?

1

muscle fibers

5

myofibrils

6

scarring

4

small sections in a muscle cell that move when a muscle is being used

3

stretching

3

the cells that make up a muscle

True

Flexibility activities should be recorded in your activity log.

increase flexibility

If stretching is done during the cool-down, it can help the muscle _.

2

a by-product produced in the muscles during exercise

2

lactic acid

increases blood flow to the muscles, helps heal the muscles, lengthens the myofibrils

Why is stretching considered exercise?

1

activities that improve the health of heart, lungs, muscles, and joints of a person

5

how far in any direction a part of the body is able to move

4

range of motion

exercise

Muscle fibers move back and fourth during _.