The thing is, this is completely natural. Read my Five Psychological Phase of Fitness for more
information. In a nutshell, after a few months of exuberance about your fitness plan (Phase 1), many things can happen. For instance, maybe you were:

•  Bored with the same old routine
•  Stricken with an illness
•  Injured due to over-use or improper technique
•  Subject to a schedule change
•  Starting to doubt yourself and your abilities (Phase 2).

Regardless of the reason, you are no longer exercising and that has to change. Below are some simple ideas to do at home if you cannot make it to the gym, as well as a fun circuit program that will get you through a full body workout in the shortest amount of time.

Break up your workout week into two types of workouts Cardio and Resistance/Calisthenics Training.

Cardio Ideas:

You can do cardio workouts such as walking, jogging, biking, swimming, rowing on any day,
and it only takes 20-30 minutes to receive a good cardio-vascular benefit. Keep your heart rate at
about 50-65% of your maximum. A good way to determine maximum heart rate is the theoretical
formula of:

220 – age = max heart rate

If you do this 3-4 days a week, you will burn enough calories to lose weight (and inches) as long as you are not getting too carried away with your eating habits. See my Lean Down Plan for more ideas on what to eat and when.

The best thing about this part of your workout is that you can do your cardio exercise around your neighborhood, on a treadmill at home, or at to the gym if you choose. So on days when time is short, get your cardio done, or make those the 1-2 days of rest you should give yourself every week.

Calisthenics and Weight Machines:

The abdominal routines and lower back exercises are the easiest to do and take the least amount of time -- usually five to ten minutes. Here is a quick abdominal/lower back routine you can at your home or in between sets at the gym:

Crunches -- 25
Reverse Crunches -- 25
Double Crunches -- 25
Left Crunches -- 25
Right Crunches -- 25
Bicycle Crunches -- 25

See the Rest with Crunches article for pictures and more information on fitting abs workouts into your program.

Here is a Full-Body Weight Circuit Routine that can be used to get you back in the gym again: (Use machines or dumbbell/free weights)

Do this weight routine 2-3 times a week:
Bench press -- 15,10* reps
Pulldowns -- 15,10* reps
Squats or leg press -- 10-15 reps
Leg Curls -- 10-15 reps
Rest with abs -- do 50 reps of the crunch exercises above
Military press (shoulder press) -- 15,10*
Bicep Curls -- 15,10
Triceps Extensions -- 10-15 reps
Plus an exercise of choice -- pick a machine and do two sets of 15 reps on it

Repeat above again if you have time/energy

(*Complete this set with heavier weight on the first set; immediately drop the weight a few
pounds and perform the second number of reps without rest)

On days you cannot get to the gym to lift weights, give this superset a shot.

Add dumbbell investment of $20-30 to fully supplement your home workout:

Pushups -- 10-20
Crunches -- 20
Wide Pushups -- 10-20
Rev crunches -- 20
Bench dips -- 10-20
Double Crunches -- 20
Squats -- 20
Lunges -- 10-20 / leg
Bicep curls -- 20
Triceps Extension -- 20
Military Press -- 20

And the Lightweight Shoulder workout --see Shoulder Article

I hope these ideas help you rebuild your determination to get back to exercising. If you have any questions, please feel free to email me at stew@stewsmith.com. Check out the StewSmith.com e-Book Store for more information on the programs for passing nearly every PFT in the military as well as regular workouts for weight loss and general fitness.