Intensity Is Key continued...
The overall trend in fitness is away from long aerobic sessions and toward shorter workouts, even when time isn't a factor, Valency says.
"If you do a short-burst, high-intensity workout, you also get a calorie burn that lasts after you finish working out, so it's also ideal if you want to lose weight," Valency tells WebMD.
And what kind of workout can you do at lunch? Just about any workout you could do at any other time, in an abbreviated form.
Some gyms offer noontime classes that are ideal for a lunch break. Or you could log 20-30 minutes on your favorite cardio machine, perhaps using an interval program for a higher-intensity workout. Weight lifters might work a different body part at each lunchtime session, or alternate strength-training days with cardio days.
Circuit training -- short bursts of resistance exercise using moderate weights and frequent repetitions, followed quickly by another burst of exercise targeting a different muscle group -- can give you a full-body workout in a hurry. (The popular Curves gyms use this approach). Or you could partner with a co-worker for a jog or power walk at a park near your workplace.
While a lunch-hour workout is great, experts say don't forsake some face time with food in order to fit one in: "You body needs to be refueled and it's essential you do eat, so don't skip lunch in favor of exercise,"' says Valency.
You can do both if you follow a few simple rules. First, all our experts agreed that you should eat after, not before, your workout.
Also important: Go for a light, lower-fat lunch, which is easier to digest after activity. Croze also suggests brown-bagging your lunch on days you have a workout scheduled, to cut down on travel time to and from a restaurant.
On workout days, Valency says, it's also important to have a healthy breakfast, followed by a high-protein snack (like some cottage cheese and a few crackers) about three hours into your day. Then, right before your lunchtime workout, he recommends a "shooter" of whey protein powder in a drink or energy bar to help you push your muscles to the max.
"After your workout, you can also have a quick, high-carb snack -- even a small candy bar -- but you should also have a light lunch within no more than 45 minutes after working out," says Valency.