
In my third year in college a long way from home, I had put on some weight and a friend of mine introduced me to isometric exercises through a book featuring a smiling young woman dressed in a business suit sitting at an office desk demonstrating calf exercises while she typed away on her word processor.
The notion of sitting practically motionless and carrying on with usual daily activities while exercising without breaking a sweat or turning a hair struck me as comical and absurd, but intriguing.
The reason you can sit practically motionless while performing isometric exercises is because these exercises mainly involve contracting and relaxing muscles without changing the length of the muscle or the joint angle. The glossy photos in my friend's book demonstrated some very attractive advantages to isometric exercises:

So, you're sitting at your deskā¦
To start, place your hands, palms facing up underneath your desk, keep your elbows tucked in at your waist, push upward against the desk and hold.
Relax your shoulders down and breathe.
Hold for 10-15 seconds then relax.
Repeat twice.
For your biceps, shoulders and chest
1. Press your palms together as hard as you can
2. Hold for 10-30 seconds
3. Repeat 2-3 times
1. Sit on a chair or in the seat of your car feet flat on the floor, back upright
2. Draw your naval into spine
3. Hold 10-30 seconds
4. Repeat 2-3 times
1. Sit at you desk
2. Raise your heels.
3. Hold the position for 10-30 seconds.
4. Repeat 2-3 times.
1. Interlace your fingers behind your head
2. Push your head back into your hands
3. Allow your hands to resist
4. Hold 10- 30 seconds
If you are prone to neck injuries, do this exercise with caution
This is a great abdominal exercise that tones and strengthens the back and the midriff.
1. Start out by lying flat on the floor, face down.
2. Slowly raise your body so you are resting on your toes and forearms.
3. As you become more advanced you can straighten your arms and rest on your hands as the start position for the press up
4. Keep the back flat and draw your naval into your spine.
5. Hold the position for 10-30 seconds.
6. Repeat the exercise 2-3 times.
This exercise will strengthen your front thighs. This is also a great exercise for conditioning your legs if you want to have a go on the giant slalom!
1. Stand with your feet shoulder-width apart and your back firmly against a wall.
2. Slowly slide down the wall until your thighs are parallel to the floor.
3. Move your feet away from the wall if you have to, to ensure your knees do not extend past your toes.
4. Hold the position for 10-30 seconds.
5. Repeat the exercise 2-3 times.

These type of exercises give you a fast exercise option on days you are pushed for time and can add another dimension to your training when you incorporate them into other resistance work, like a stretching routine, Yoga, Pilates, Tai Chi or a weight training workout.
To incorporate them into a weight training exercise where you working through the full range of motion of the working muscle you might stop and hold the movement for a few seconds in an isometric contraction before continuing the exercise.
For example if you were performing a squat you can squat down hold and then come up, or hold the squat position at different stages of the descent or as you come up.
Be warned - this is very tough to do - both physically and mentally.
Hold the position for a maximum of 10 seconds
Keep your breathing - you don't want to turn blue in the face!
Enjoy experimenting!
Leave Isometric Exercises and go to Illustrated Stretching Exercises
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