Soccer ball on grass

What Is the Weight of a Size 5 Soccer Ball?

Soccer players rely on consistent equipment and conditions in order to perform at their best. Because the soccer ball is the main piece of equipment in the game, there are several strict regulations and requirements regarding its size and weight. A soccer ball that is too heavy or too light impedes the game.

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What Are the Benefits of Sprinting?

Sprint running is one of the most challenging exercise routines available. It requires running as hard as you can for short periods of time, utilizing all your energy and muscle power for short intense bursts. Fortunately, the benefits are worth the effort.

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Muddy legs of soccer players

The Proper Way to Wear Soccer Shin Guards with Socks

Shin guards and socks are required for legal play in nearly all soccer leagues. There are two basic types of shin guards: those with ankle guards and those without. For each type of guard, you should know the best way to wear your socks for the benefit of legal play and your safety on the field.

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Baseball mitt and ball in grass with selective focus

What Can You Rub on Your Baseball Glove to Break it In?

When they come out of the factory, leather baseball gloves are stiff and difficult to use. You can soften your glove and help develop a good pocket for the ball with a wide variety of oils, conditioners and softeners. These substances penetrate the surface of the leather and make it more supple.

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Bicycle disc brake - Stock Image

Types of Steel Bicycle Frames

Steel is the classic bicycle frame material. It's strong, inexpensive and well suited to modification through alloys and other chemical treatments. When choosing a frame, the various steel types offer an array of choices.

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Cyclist riding bike

Proper Foot Placement on a Bike Pedal

A bicycle is an efficient machine, but only when it's a proper fit. The correct position of the seat, pedals and handlebars in relation to your height, ensure that you enjoy an efficient and enjoyable ride.

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Difference Between a Snorkeling & Dive Mask

To the outside observer, snorkeling and scuba diving masks are no different from one another. But there are subtle variations that make a world of difference, especially underwater. Choose the best mask for you aquatic adventures by understanding how snorkeling and scuba diving masks stack up.

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Man and woman exercising on elliptical trainer.

The Average Speed on an Elliptical

Elliptical machines, or trainers, offer a low impact cardiovascular exercise alternative to traditional exercises like stair climbing and running on a treadmill. Like many other fitness machines, most ellipticals are equipped with sensors that measure speed.

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Quarterback Going back to Pass

Elbow Pain When Throwing a Football

Elbow pain when throwing a football is often simply diagnosed as elbow tendinitis. However, there are different types of elbow tendinitis. Pain that occurs when throwing a football is called "thrower's elbow."

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Teenage boy pitching baseball

Elbow Pain While Throwing Baseball

Compared to high impact sports like football, baseball seems relatively safe and injury free. Yet many players don't realize the strain that throwing puts on the body. Whipping your arm around to sling a baseball at high speeds puts significant wear on your joints, muscles and tendons, particularly at the elbow.

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Girl workout on leg press

Exercise Machines to Avoid for Hip Replacements

Hip replacement is a serious procedure. However, with proper rehabilitation you can regain all previous strength and range of motion. The best rehabilitation involves careful planning and exercise routines.

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How to Clean a Leather Basketball

A good leather basketball can last for years if you maintain it properly. Though many players don't notice, leather basketballs can collect a significant amount of dust and grime.

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bike

Does a Bike Trainer Damage Your Bike?

When the weather turns sour many bicyclists retire their machines to wait for the next season. For those cyclists who want to continue riding in the off-season, an indoor bike trainer is a solid option to stay in shape. In general, bike trainers are very safe to use on bicycles, even very expensive carbon fiber bikes.

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Low angle view through trampoline of girl

About Trampoline Physics

A trampoline appears as nothing more than simple fun, but it is actually a complex array of the most basic laws of physics. Jumping up and down is a classic example of the conservation of energy, from potential into kinetic. It also showcases Hooke's laws and the spring constant.

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Golf clubs in the bag,balls and tee on grass

What Is the Difference Between a 8.5 & a 10.5 Golf Driver?

Every year, golf club manufacturers come out with new clubs with new technology based on millions of dollars of research. But, for the most part these new technologies only change the materials of the clubs, not how they work. One basic measurement of drivers is loft angle.

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