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Medicine Ball

A medicine ball (also known as an exercise ball, a med ball, or a fitness ball) is a weighted ball roughly the diameter of the shoulders (approx. 14 inches). Often used for rehabilitation and strength training, it serves an important role in the field of sports medicine. It should not be confused with the larger, inflated exercise ball.


Medicine balls are usually sold as 2–25 lb. balls and are used effectively in plyometric weight training to increase explosive power in athletes in all sports. Some medicine balls are in the form of weighted basketballs.


Medicine balls are used by boxing professionals to improve the strength of abdominal muscles. This is done by dropping the ball onto the abdomen of the boxer, simulating a punch coming from an opponent. Other athletes use medicine balls to increase their core strength. One common activity is to have athletes hold the ball against their chest and thrust it at another athlete, who catches it against their chest. This strengthens arm, chest, and leg muscles.
Medicine balls throws are also implemented as part of the SPARQ rating, a test of sport-specific athleticism, to assess core strength, total body power and coordination. Different tests involve an athlete throwing the ball behind them and over their head as far as they can, or kneeling and pushing the ball out from their chest for maximum distance.


Medicine ball training is one of the oldest forms of strength and conditioning training – the first reference to wrestlers training with sand filled bladders appears in Persia nearly 3000 years ago. In ancient Greece the physician Hippocrates  had them sewn out of animal skins and stuffed with sand. His patients threw them back and forth for injury prevention and rehabilitation.

In the late nineteenth century and early twentieth century, the words “health” and “medicine” were synonymous. The so-called “Four Horsemen of Fitness” were the dumbbell, the Indian club, the wand and the medicine ball. This is where the beginnings of the modern medicine ball originate.

They are also extensively used by secondary schools as a fitness aid. Example exercises include: lifting the ball or performing different exercises (such as sit-ups and leg raises) with the ball in order to increase the stress on a particular muscle.
A medicine ball is also commonly used by athletes who have sustained an injury and seek rehabilitation.

Medicine balls are generally constructed of a leather or vinyl covered nylon  cloth, and filled with impact absorbing materials to give them weight. Vinyl covered medicine balls typically are sand filled and are not used for exercises requiring bouncing. Sand or steel shot filled neoprene bags are also used for medicine ball exercises not requiring bouncing.

Some medicine balls have an inner half sphere of dense material in varying thicknesses and seamed together with an outer rubber shell. Other medicine balls have a thin rubber bladder covered by a thick rubber outer surface. Medicine balls that are constructed with an inner rubber bladder and rubber outer surface

incorporate an air valve to pump up the ball and increase the bounce. The outer rubber surface has indented designs for easy handling. Over time the rubber surface may wear down if the medicine ball has been used on rough surfaces.

Other types of medicine ball include balls made of gel-filled polyvinyl chloride shells, balls made of solid polyurethane, and neoprene bags filled with sand or steel shot. The materials can vary depending on the desired weight and density.

A basketball can be filled with sand, stitched shut, and used as an effective low-price medicine ball where resources are scarce, and is popular in, for example, home “garage” gymnasia.

Some producers of medicine balls incorporate handles on/or into the ball. One or two handles may be molded into the ball, thereby changing the shape from a sphere. Handles may serve also as a strap for hand security and attach/unattach to the surface of the ball. A handle may also be an attachable rod that is screwed into the ball.

The handle allows the user to grasp the ball either with one or two hands and swing the ball in movements with the weight placed further from the body. Handles that are incorporated into the ball allow the user a closed grip compared to an open grip of a large diameter ball. The user may also put the handle around their foot and complete exercises with added weight to the lower body.

A second variation is an attached rope through middle of the ball. The ball may be hollow with the rope secured at each end of the ball or the ball may be solid with the rope molded into the construction of the ball. These are known as power balls, slam balls or tornado balls. The user grasps the rope along any length and swings and rotates the ball overheard or around the body. The ball can also be chopped or slammed against the ground or a wall.

A recent variation is the Sand Bell and Steel Bell where the neoprene filled bag itself serves as a “handle” and adds a grip strength challenge to exercises along with a core stabilization challenge due the shifting fill material. In addition, the soft pliable bags offer a safe alternative for partner medicine ball exercises.

A user can convert a traditional medicine ball in a Powerball by placing it inside a mesh bag cinched closed by a large rope used as a handle. The rope length should allow the user to wrap the rope around the hand for security.

The greater the distance the weight is from the body the greater the core strength and power required to complete the exercises.


- Articles, data, text, image or video content posted on this site is checked by the Fitho team of nutritionists & fitness experts, or by research/studies, and opinions are based on our wide experience in helping thousands of people get fit, lose weight & manage their health.
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