Warming-up as a set of physical exercises should be conducted in an orderly and progressive manner. To organize exercises, we divide warm-up in phases, which have the same goals: activation, joint mobility, stretches and specific exercises.

Activation.- Consists on "waking up" the body, we raise breathing rate, increase muscle temperature and viscosity, increase beats per minute, vasodilation, we redistribute cardiac output, etc.

Articular Mobility.- perform abduction and adduction, flexion - extension, and/or rotation of the joints. Thus we lubricate cartilage and prepare ligament insertions.

Muscle stretching.- Once muscles have increased temperature, becoming more viscous and receiving more oxygenated blood, we can proceed to stretch the myofibrils and muscle fascia, preparing the muscles to lengthen and give maximum possible elasticity.

What are the best physical trials in football? Do they serve for anything or are they a waste of time? Why conduct these tests and not others? Is it the same to do tests on Monday than on Thursday? How to organize a session of physical trials to be effective and not a waste of time for the players? What should I prepare before taking the session to the field? What type of warm up should be done? What data is important and useful?

All groups must have someone to be the spokesman which in turn "manages" from within it. Having a good team captain is very important because if he performs his functions properly, the group will be united and working all together to achieve the objectives.  Who should the captain of the football team be?, what psychological aspects should we look in him?