Here it is
Don't surprise your muscles and your heart.
Give them warning that you're about to start.
Let your muscles have a wake up call
Or they'll seize up and then you'll fall.
Fitness routine is big stress.
At the finish, you'll be anerobic, that's no guess.
Oxygen, your muscle cells will be thirsty for,
Every small vessel needs to open wide their door.
You will also want the power and the flexibility
The mito enzymes ready to make the ATP.
High anerobic threshold, you will need.
So slowly build the tempo of the warm up.
Feel the quick strength coming up.Feel the muscle
Now, when the music starts, you won't surprise your muscles,
Or your heart.