What guidelines are given in regards to intensity and frequency, to improve flexibility? stretch each muscle group slowly until a feeling of slight discomfort is felt. hold the position for 20 seconds. make small bounces while holding a stretching position. repeat a stretch at least three times. during each stretching session, different muscle groups should be worked.

Explanation:

Stretching involves extending the body or a part of it to its full length, usually to tighten the muscles. Thus, when stretching it is important to keep the position slowly for about 20 seconds until there is a little unpleasantness. Repetition improves the fullness of the straightening.

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alternate days of the week that you perform that activity