What size stability ball is appropriate for an individual who is five feet and five inches tall?

For an individual who is five feet and five inches tall, the most appropriate size for a stability ball is indeed 55 cm. The selection of the right stability ball size is primarily determined by the individual's height in order to ensure optimal use and support during exercises.

To find the correct stability ball size, a general guideline is to consider an individual's height and correlate it to the size of the ball. The standard recommendations suggest that individuals who are between five feet and two inches to five feet and five inches should utilize a 55 cm ball. This size allows for proper alignment and comfort when sitting on the ball, as well as when performing various exercises.

Using a ball that is too small or too large can lead to improper posture and decreased effectiveness of exercises, potentially increasing the risk of injury. Thus, the 55 cm stability ball provides the correct height and support, allowing for effective workouts that engage core stability and other muscle groups appropriately.