Need to get a workout in when you are pressed for time? We asked some area trainers for some simple routines you could do in 20 minutes or less to help keep toned.

June Morrow, C.P.T., R.M.T. of Lean Images suggests doing a workout that targets the major muscle groups effectively. Morrow points out that using high intensity training as well as weight-lifting exercises can deliver quicker results than most people realize. The amount of weight to be used depends on several factors such as fitness level and strength base. Morrow recommends selecting a moderate to heavy weight that allows you to keep your form, but leaves you feeling challenged by the end of each set. This program should take approximately 20 minutes. All exercises are deliberately grouped together with no rest in between.

Combination #1:
A) Lateral pull down: 10 to 15 reps
B) Ball crunches: 20 to 40 reps
C) Walking lunges: 20 to 40 alternate steps
Rest one minute to let your heart rate recover and then repeat Combination #1 at least two more times.

Combination #2:
D) Dumbbell chest press: 10 to 15 reps
E) Standing dumbbell side laterals: 20 to 40 reps
F) Bench tricep dips: to failure
G) Pile squat: 15 to 20 reps
Rest one minute to let your heart rate recover and then repeat the Combination #2 at least two more times.

This workout targets back, shoulders, chest, triceps, biceps, glutes, thighs (inner quads and hamstrings) and works core stabilizing muscles of the back and abdominals.

Michael Lerner, an independent personal trainer for Pinnacle Elite Fitness, also has a few suggestions for a whole-body workout in a pinch. When it comes to toning and overall strength gains, he always recommends circuit training. This type of workout makes optimal use of your time by combining continuous movement with weight training, to keep your heart rate elevated and in a target zone. The following workout is a 10- to 30-minute circuit program, depending on how many cycles you decide to do. It can be done one time for a beginner and as many as five times for a more advanced exerciser. The key is to move as quickly as possible through each exercise without sacrificing a slow and controlled form.

1) Initial two-minute walk or run (warm-up)
2) Dumbbell press: 15 to 25 reps
3) Cable or dumbbell fly: 15 to 25 reps
4) Barbell curl: 15 to 25reps
5) Triceps press down: 15 to 25 reps (Mix it up with a straight bar or a V-bar.)
6) Lateral pulldown: 15 to 25 reps
7) Seated row: 15 to 25 reps
8) Squat and press: 15 to 25 reps
9) Final two-minute walk or run (cool-down)