BATTLE OF THE FREE RADICALS. Some antioxidants are produced by the body and some by plants, and so they can be derived from the diet. Their job is to combat free radicals â highly reactive molecules formed as a natural by-product of cellular activity.
Grip (tennis) In tennis, a grip is a way of holding the racquet in order to hit shots during a match. The three most commonly used conventional grips are: the Continental (or Chopper), the Eastern and the Western. Most players change grips during a match depending on what shot they are hitting.
Grip: The location of the vaulter's top hand on the pole. As the vaulter improves, their grip may move up the pole incrementally. The other hand is typically placed shoulder-width down from the top hand. Hands are not allowed to grip the very top of the pole (their hand perpendicular to the pole) for safety reasons.