Quotes from David Kirsch

The Swiss ball is such a great tool because it forces you to recruit more muscles in order to stabilize yourself.

Ideally, we should be controlling what we eat by cooking for ourselves.

Dinner should be low in caloric intake. Foods like fish and broccoli are very good choices.

For me, the way I go about training all of my clients is by using short bursts of interval training - it's the most effective for burning calories as well as for cardiovascular health and making you stronger.

If you have a resolution to go to the gym, it'll be a lot easier if you get a great trainer or get your partner or your work buddy or your best friend to go with you so that you're held accountable to yourself and to that other person.

Avoid any exercise that is quad-centric. None of my clients come to me because she wants bulkier quads - you aren't fitting into your skinny jeans with those!

Work out to music that's fun for you. I like a good beat; something from Jay-Z or Eminem.

I love when my hotel room has a fridge, and I simply shop at a local supermarket for things like Greek yogurt, fresh fruit, healthy cereal - like Kashi - and skim milk.

A jump rope is cheap, it's portable, and you can do it anywhere.

Most of the time, I am quite familiar with the airports from which and to which I am traveling, and I know what I can eat there. If there is any doubt, I make sure I have something in my bag. A must-have for me is pre-measured protein powder in small Ziploc bags along with a shaker cup.

A combination of cardio exercises on the rowing machine, treadmill, elliptical, or The Gauntlet will help blast fat in the lower half of the body.

If you do the treadmill or elliptical all the time, try adding the rowing machine or stair climber, maybe get a new bicycle. You want to keep it fresh.

Don't fool with machines you're not familiar with - stick with the treadmill and elliptical.

Jumping rope is better than running because it engages the whole body.

Jumping on something too fast can be a mistake. Tae Bo was once the latest and greatest craze, but where is it now?

In addition to intense workouts, you need to be mindful of what you are feeding your body in order to keep it looking trim and tight.

If you go on a calorie-reduced diet without increasing your level of exercise, at a certain point, your body will lose a little weight and then plateau. You need to trick your body to burn more fuel than you're ingesting so you can continue to lose weight.

If you take care of your body, it will take care of you.

The point of workouts are no longer to do double 60-minute sessions or go to classes five times a week. You don't want to burn out and beat your body up.

Your body is smarter than you are, so you always have to stay one step ahead.

Movement is exercise. Seemingly simple things - taking a walk, for example - can be just the spark your body needs to get back on a healthy track.

Being pregnant is not license to forget all the rules that you abide by when you're not pregnant. Moving your body, getting enough sleep, staying hydrated, and eating proper foods throughout the day are even more important when you're pregnant.

You need to stick to a workout that fits into your lifestyle, targets your body issues, but also correlates to your objectives, whether you're at home, on vacation, in the office, or on the road.

You want to have fun and try new things but also shock your muscles with new workouts so that you keep your body guessing and get the maximum results from your workout.