While maintaining an upright spinal position, begin by stepping the outside leg up onto an elevated bench.

Do 12 reps, then switch legs.

Facing away from anchored cable, grab handle with both hands and hold in front of chest.

Image may contain Human Person Sport Sports Racket Tennis Racket Tennis and Tennis Court

COPYRIGHT ©2011 THE CONDÉ NAST PUBLICATIONS. ALL RIGHTS RESERVED.

Maintaining upright position, shoulders down, extend both arms forward in a press motion.

Return handle to chest.

Lower raised leg into a reverse lunge.

Image may contain Human Person Fitness Sport Sports Exercise Working Out and Gym

Rotate torso towards the side of the front leg, keeping arms extended with ball.

Maintaining stability, press off back leg back to starting position.

Repeat with the other leg.

Image may contain Human Person Fitness Sport Sports Exercise Working Out Gym Clothing Shoe Footwear and Apparel

Do 12 reps on each leg.

Finish movement by reversing motion to fully extending back up.

Exhale and hold for a second, then press through heels to return to start position.

Image may contain Human Person Sport Fitness Sports Exercise Working Out Gym Clothing Shoe Footwear and Apparel

Stand back from anchor in athletic stance, holding band in each hand, arms fully extended.

Return back to start position.

Return to start position.

Image may contain Sport Sports Exercise Working Out Human Person Fitness and Gym

Return to starting position.

Begin movement by elevating toes off of the floor.

Lower back down to start position.

Image may contain Sport Fitness Sports Exercise Working Out Human Person Gym Clothing Footwear Apparel and Shoe

Keeping legs straight, ankles flexed, and back upright, raise legs to hip height.

Contract glutes and hold for three seconds, then lower to start position.

Contracting glutes and keeping back flat, slowly lower upper body in one controlled movement to the floor.

Image may contain Human Person Sport Sports Exercise Working Out Fitness and Gym

Slowly raise back to starting position.

Stand on box, holding resistance band in right hand, take right foot off box, flex ankle.

Using the band to assist you, squat down and tap right heel to the ground.

Image may contain Exercise Human Sport Sports Working Out Person Fitness Gym Electronics Monitor and Display

The pressing firmly through left leg, slowly raise back up to starting position.

Do 12 reps on each leg.

How it helps your game:Hamstring and knee flexor strength for stronger serve

Image may contain Exercise Human Sport Sports Working Out Person Fitness Gym Female Woman Blonde Teen and Girl

Image may contain Sport Sports Exercise Working Out Human Person Fitness and Gym

Image may contain Human Person Fitness Sport Sports Exercise Working Out Gym Clothing Shoe Footwear and Apparel