Maximizing Spring Agility Drills
by Jim KielbasoDirector of the Total Performance Training Centers (MI)

If every athlete used the spring to improve their speed and strength, summer conditioning would be really simple. Everyone would be faster and stronger than before, and with a couple of weeks of basic conditioning, you’d be ready for football practice. Unfortunately, things never seem to turn out that way, so you need to have an effective plan in place.
It’s important to analyze the metabolic requirements of football and design conditioning routines that train the proper e
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