Russian twist on an exercise ball

• This exercise mimics a swing in baseball. Lie on top of an exercise ball on your back with your eyes focused on the ceiling. Bring your hands up above your chest and join your fingers in an interlocking grip. Turn your hips 90 degrees to the left, then return to the starting position. Turn your hips 90 degrees to the right, then come back to the starting position. Do this 10 times to each side, take a 30-second break and repeat the set.
  
  

Sit-ups on an exercise ball

• Building up your core muscles will help a baseball player's swing. Working out on the exercise ball will help your core muscles. Sit on the exercise ball and find your balance point. Tense your core muscles and lie down until your back is parallel to the floor. Then sit up and return to the starting position. Do this 15 times, take a 30-second break, then repeat the set.
  
  

External rotation with resistance band

• Hook one end of a resistance band onto a heavy piece of furniture so it is secure. Take the other end in your left hand and hold your elbow at your left hip and your forearm straight out. Rotate your left hand and forearm to the left about 90 degrees, then return it to the starting position. Do this 10 times, then switch arms and do the same exercise with your right arm. Take a 30-second break and repeat the set
  
  

Stretches with exercise band

• Place one end of an exercise band under your right foot. Take the other end in your right hand and hold it straight out from your body at hip level. Pull the exercise band up to shoulder level, then return the band to the starting position. Do this 10 times, then switch to the left side and do the same exercise. Take a 30-second break, then repeat the set.
  
  

Medicine ball toss

• This needs to be done with a partner who can catch the medicine ball and return it to you. This exercise will help develop explosive power in your swing. Stand about 10 feet from your partner. Imagine that he is the pitcher and you are the batter. You will take a right-handed or left-handed stance, depending on which way you bat. Take the ball and put it at shoulder height and make a diagonal bounce pass to your partner. After catching the return pass, do this 15 times, take a 30-second break, then repeat the set.