The colors are meant to represent "a heart, as the ball is the heart of the soccer and MLS." The Brazuca boasts an innovative six-panel design and a unique surface designed to provide improved ...

The specific aerobic training consisted of four sets of 4 min work periods dribbling a soccer ball around a specially designed track at 90–95% of maximal heart frequency, with a 3 min recovery jog at ...

Objective: To determine whether ball dribbling and small group play are appropriate activities for interval training, and whether heart rate in soccer specific training is a valid measure of actual ...