HIGH-SPEED VIDEO OF A BALL MAKING AN OBLIQUE COLLISION WITH A FIXED CYLINDRICAL SURFACE. NOTE THAT HE BALL, INITIALLY NOT SPINNING, HITS THE UPPER HALF OF THE CYLINDER AND SCATTERS UPWARD WITH BACKSPIN. This video was part of an experiment to study the spin of a batted ball. The paper reports results of experiments that were conducted to investigate the spin of a baseball undergoing an oblique collision with a bat. A baseball was fired horizontally at speeds up to 120 mph ont

For Football Kickers & Soccer Players We’ve all seen and heard it before. You are watching a good football game, and a punter, backed up into his own end zone, drills a 70 yarder dashing any hope of the opposing team working with a short field. Or, just before halftime or the end of a game, a place kicker nails a 55+ yarder. And what do we hear from the commentators? “Wow, that guy has a strong leg!” Maybe you’ve heard of Paul McFadden, who kicked for the NFL Philadelphia Eag

Knowing how to throw a punch properly with added power is important not to only get your opponents respect, but to also maintain balance and positioning to set up your next punch or to move away. Some fighters are naturally heavy handed, but every fighter can certainly increase punching power by implementing the following training tips and techniques. 1) STRENGTHEN YOUR LEGS Most of the power in your punches come from your legs. They are the very foundation of your strength a

For an athlete, knowing the average vertical leap of elite players is one of the ways of pushing yourself to be better. Below we gathered various data to get the vertical leap norms of different groups of individuals. It is a good way to being able to compare yourself with others and see if you need to improve on this aspect of your athleticism. Jump height is measured by the vertical jump test, which measures the distance an athlete is able to lift themselves off the ground.

Handgrip Strength Norms A grip strength dynamometer is useful for testing your hand grip strength. Handgrip strength test results can vary depending on the protocol used, so it is important to compare results to norms derived using the same techniques. The dynamometer handle is usually adjusted (if possible) to fit the hand or set at the same setting for everyone. The same setting should be used when retesting. The strength of the left and right hand can also vary, so the tes