Swimmers sometimes debate the importance of legs versus arms in swimming but neglect the significance of what connects the limbs together. Your core or trunk generates the lift and speed that distinguishes an elite swimmer from an average one.

It's not surprising to come away from a session of boxing with sore forearms. Given the impact involved, especially in contrast to the relatively small bones and muscles in your forearms, the surprise is that the soreness isn't far more frequent and severe.

Basketball requires a high degree of muscular and cardiovascular endurance. Running up the court, propelling passes and jumping for a shot all require the use of your entire body. Cramps are the bane of any athlete, but are especially detrimental during a high-movement game such as basketball.

Tennis is a sport that requires a broad fitness regimen. Strength, speed, agility, flexibility and endurance are all athletic building blocks of a tennis athlete. Workout routines designed for tennis need to incorporate training for each of these attributes.

If you are trying to make the cut at basketball tryouts you need to prepare both mentally and physically. By practicing the fundamentals, and coming to the tryouts in top condition, you will have the confidence to impress the coaches.

Of the four competition strokes in swimming -- backstroke, breaststroke, butterfly and freestyle -- breaststroke is the slowest. For example, the world record for the men's 100-meter breaststroke is just 58.46, while the world record for the men's 100-meter freestyle is 46.9.

The sudden stops and jumps in a game of basketball are rough on your shock absorbers -- the knees. Soreness in the knees may be a normal side effect of enjoying a great game, but watch for the warning signs of a more serious injury before brushing off sore knees as a minor annoyance.

In basketball, the frontcourt is the half of the court on which the team with possession of the ball is attempting to score and is also known as that team’s offensive end of the court. The backcourt is the half of the court that the team with the ball advances the ball from into the frontcourt.

Wrestling at all levels involves many moves designed to put you in control with the ultimate goal of outpointing or pinning your opponent for a victory. For beginner high school wrestlers new to the sport, instead of trying to learn all of them at once, start with a few basic moves.

Football is brutally physical, with physical collisions between players a regular part of the game. Only recently has research conclusively shown, with some help from the courts, that playing football for a long period of time often leads to serious head and bodily injuries.

Wearing a supportive sports bra while exercising is critical to avoiding discomfort and straining the ligaments around your breasts, and delay sagging. As you work out and perspire, your sports bra can cause chafing, irritation and a rash on and around your breasts.

In the late 19th century, the two popular American team sports of basketball and volleyball were both invented at Springfield College in Massachusetts.