Comprehensive Sports Guide: Rules, Conditioning & Equipment

Athletic mastery depends on understanding official gameplay rules, optimizing equipment technology, and implementing sport-specific conditioning drills.

young woman runner tying shoelaces on stone trail

The Best Running Shoes for Heel Support

Your heels can take a pounding when you run regularly, and without heel protection, runners are at an increased risk of developing plantar fasciitis. The plantar fascia is a wide band of muscle along the sole of the foot.

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Low angle view of a young man swimming underwater in a swimming pool

Calories Burned Swimming 1,000 Yards

The number of calories you can potentially burn swimming 40 lengths of a 25-yard pool largely depends on your weight and speed. You can calculate the amount of calories burned based on the American Council on Exercise tables for calorie expenditure if you know your weight and the time it takes you to swim 1,000 yards.

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Bird-eye view of Basket Ball Hoop

Radius of a Basketball Rim

The standard basketball rim used by NBA professionals, university and senior high players has an 18-inch inside diameter, giving it a radius of 9 inches. Rim measurements in international competitions are slightly different.

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Woman standing dribbling basketball, low section, blurred motion

Which Basketball Sneakers Have Good Arch Support?

Foot-related basketball injuries may be avoided with more support for a player's arches. Players with flat feet or high arches may be more prone to injuries and need different types of arch support.

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Diving

Is Swimming in Salt Water Easier Due to Higher Density?

It is perhaps more accurate to say that floating, rather than swimming, is easier in salt water. This is entirely due to the density of salt water in comparison to the density of outdoor fresh water or indoor pools. A swimmer's physiology also affects his ability to float in any form of water.

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Low angle view of a young man swimming underwater in a swimming pool

Is Swimming Good for the Rotator Cuff?

Is swimming good for the rotator cuff? Learn why it's not recommended, especially after surgery, and discover exercises to prevent swimmer's shoulder and rotator cuff injuries in swimmers.

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Boy Playing Basketball

Elementary Basketball Court Dimensions

There are no official youth basketball rules governing youth court dimensions, but there is a consensus about size in the national youth leagues, according to My Youth Basketball Player. An elementary school basketball court measures 74 feet by 42 feet.

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Mature Man Jogging

A Healthy Body Fat Percentage for Runners

Individual sports require a specific body composition and with running, different types of runners will benefit from different body types. The ideal body fat percentage for runners varies between sprinters and distance runners. Runners also need to be aware that becoming too lean has a negative effect on your health.

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