Golf is truly a spectator sport, with hundreds of thousands of patrons flooding golf courses annually to watch events on the PGA, Senior PGA and LPGA Tours. Golf is also a game of etiquette and honor, with many time-honored traditions governing play and conduct.

Golfers have witnessed plenty of innovative changes in equipment over the past 20 years. Golf balls, for example, are much more durable while maintaining the spin and distance properties that golfers covet. Today there is very little difference between hard and soft golf balls.

Half marathons are challenging runs. There are usually more runners registered in a half marathon, and many participants try to run faster than the full marathon pace. Running for 13.1 miles is stressful on the muscles and joints.

Whether in the pool or far out at sea, knowing how to swim can save a life. According to the Centers for Disease Control and Prevention, 3,443 people unintentionally drowned in the U.S. in 2007. An additional 434 people died from boating-related drowning incidents.

A recumbent bike is similar to an upright bike but is designed so that your legs are parallel to the ground while pedaling. Benefits of a recumbent bike include less pressure on leg joints, a design more comfortable for people with back problems and it’s easier to mount, especially for people less steady on their feet.

The calf pain associated with stiff ski boots is enough to make you consider snowboarding. Fortunately, the pain-killing endorphins produced while soaring downhill at exhilarating speeds usually override the pain.

The proper use and tension of the hands and wrists during the golf swing confounds many a player. Though your instincts may tell you that maintaining a tight grip on the club with firm wrists is necessary to generate a powerful swing, the opposite is true.

Swimming is an excellent exercise for cardiovascular fitness and weight maintenance. It is also one of the best activities around for cooling off on hot summer days.

Football involves aggressive physical contact, but also requires speed and agility. Equipment manufacturers strive to find new ways to protect football players without cumbersome padding and extra clothing.

Whether you're out on the field for the team or simply playing a game with the family after Thanksgiving dinner, football gets you moving. You'll burn a significant number of calories passing the ball, sprinting down the field and blocking opponents in a full-contact game.

Calling it arm wrestling is a bit of a misnomer. To succeed in arm wrestling, you must get your entire upper body into the movement as you pin your opponent. Some muscles, such as those in your forearm, are more important than others, but they all work together to give your arm the power to defeat your competitor.

A foot sprain usually occurs when the foot twists, causing a tear of the ligaments in the foot. The length of your recovery time depends heavily on the type of sprain you've suffered.