Confidence votes 7.4K. Height at Age 8 The AVERAGE 8 year old measures 4' 1. Don't forget that these measurements are AVERAGE. Half of children will be taller than this and half will be shorter.Children usually take after their parents so tall parents will have tall children, small parents will have small children.onfidence votes 7.4K. Height at Age 8 The AVERAGE 8 year old measures 4' 1. Don't forget that these measurements are AVERAGE. Half of children will be taller than this and half will be shorter. Children usually take after their parents so tall parents will have tall children, small parents will have small children.
Swing weight is the combination of the racquet's length, stationary weight, and balance point. Together, these factors determine if a racquet feels light or heavy when it's in motion. High stationary weight, head-heavy balance, and a length longer than 27 inches all increase swing weight.
Exercises for Tennis. Exercises that increase your rotational power increase swing speed and enable you to blast ground strokes and serves past your opponents. Use medicine ball drills for rotational power. Most are sport-specific, mimicking movements of the tennis swing. They include overhead slams and rotational throws with a closed or open stance -- an open stance mimics the open stance used for serves and returns. Moving medicine ball catches and throws allow you to mimic forehand and backhand swing motions.