1. A weighting game
For a powerful forehand, load your weight onto your back leg. Then, after
you get into the proper position, transfer your weight onto your left
side as you start your swing, if you're a right-handed player, or transfer
your weight onto your right side, if you're left-handed. By rotating your
trunk, hips, and shoulders, you can play any type of forehand that you
want.
2. At ease, shoulder
If you hit from an open stance, your directional control should not be
coming from your hand, wrist, or elbow, but from your shoulder. The first
step is to make a good upper-body turn, and then, when you uncoil your
shoulders, swing out toward the target. That's where your control will
come from.
3. Go deep
Keep the ball deep. I don't care how hard you hit it, just keep it deep!
Power without depth is no good. Power with depth and consistency is the
ultimate goal.
4. No arm done
Never stand completely sideways to the net when you hit your forehand.
What you want is a slightly open stance, one that allows your hips to
turn and release into the shot. This will help you generate more power
using big muscles like your legs, hips, and shoulders, not just your arm!
5. Get ready
Whenever possible, prepare to hit your forehand while your opponent's
shot is in the air. Why? Because by the time his shot hits the ground
on your side of the net, your racquet will be back all the way, your shoulders
locked and loaded. Also, remember to move your body at an angle that permits
you to make a play on the ball before it gets too wide and pulls you off
the court entirely.