Forehand Lob
You can hit a lob using either a forehand or a backhand. The grip for a forehand lob is the same as that for a forehand groundstroke and can be an Eastern, semi-Western, or Western grip—your choice.
Preparation
Forehand grip
Run and plant foot
Short backswing on defensive lobs
Swing
Open racket face
Low-to-high swing
Follow-Through
High racket finish on defensive lobs
Complete follow-through on offensive lobs
Misstep
Lobs are short and low.
Correction
Aim for the back third of the court, or increase the length of your follow-through.
If you are hitting a defensive lob, you won’t have much time to prepare. Making a short blocking motion with a firm grip and keeping your racket face open to lift the ball are about all you can do to stay in the point. If you have more time, swing with a down-to-up motion to get the ball high enough to clear an opponent at the net and deep enough to make him retreat to play the shot.
A backhand lob is hit with a backhand grip, which for most people is either a standard Eastern or a modified Western. Players who use a two-handed backhand may have more difficulty hitting a backhand lob because the racket is a little more difficult to maneuver on hard shots hit directly at you. When you have more time to set up for a lob, the motion again is a sweeping down-to-up path of the racket (open face) to lift the ball high and deep.
Tennis: Steps to Success Jim Brown,Camille Soulier