The American T'ai Chi Associates recommends looking for a school that adheres to the original principles of the martial art it offers, rather than one that dilutes them by, say, pairing jujitsu with kickboxing: The purer the teaching, the more your child stands to gain.
The mean calories burned per minute of tennis, based on the list of 5 activities, shown below, for an average male, weighing 190 pounds (86 kg) is 9 Calories per minute. The average per minute for an average female, weighing 163 pounds (74 kg) is 7 Calories per minute.
Calories per minute and per hour. The calories burned per minute, by basketball, drills, practice for an average man is 13 Calories per minute, and for an average woman is 11 Calories per minute. The calories burned in one hour is 801 calories for a typical man, and 688 calories in one hour for a typical woman.