Answer:
doing crunches
Explanation:
Doing push-ups for 20 continuous minutes is an aerobic and very practical exercise, since you can practice at home.
For this you must lie on the floor with your chest facing the ground. Supporting only your feet and hands, you should lift your body and return slowly without letting your chest touch the floor.
A tip that is very valuable especially for beginners, is to perform the exercise with knee support on the floor, making the exercise easier initially. After an adaptation, you should move to the footrest, which increases the intensity of the exercise.
In this exercise, the restriction is for people who have problems with their shoulder and / or wrist joints.
