you want to make sure your crunches are effective so the amount is not necessarily as important as the way crunches are done. I just read you have to vary you ab routine also. 20 minutes seems to be the accepted minimum for exercise in a day. anytime you lower your calorie intake from your normal diet you should see weight loss.
I have no idea what the previous person was talking about.Anyway, 100 crunches burns about 50 calories.
Depends on how hard you push. Going flat out, I'd go through 300 cals in 20 minutes, but I'm used to it. At a more regular level you might expect to use up 300 cal by doing 40 minutes of aerobics.
Twelve minutes.
Not any important amount. When it comes to burning calories, how hard and for how long is much more important than what you do. Pretty much all activities that gives you the same increase in heart rate for the same time will burn the same amount of calories. Now, 75 knee highs won't take that long to complete. Maybe 1.5 minute if we're generous. And it's about as strenuous as aerobics. So if one hour of aerobics would use up 450-600 calories, 1.5 minutes of knee highs will use up 11-15 calories.
The best weight loss plan is to count your calories and get at least 30 minutes of exercise 5 days a week. You can walk, jog, do aerobics, or anything that keeps your heart rate up for more than 30 minutes.
False
You would burn about 200 calories by walking for 60 minutes. About how many calories would you burn if you walk for 15 minutes
not if its followed by a good eating plan.
50 calories
6 calories a minute 96 calories in 15 minutes 190 calories in 30 minutes 380 calories in 1 hour 570 calories in 1½ hours 760 calories in 2 hours
Depends on your weight and activity level. But here is an general estimate: 30 minutes at a light pace is 190 calories 60 minutes at a light pace is 381 calories 30 minutes at a moderate pace is 238 calories 60 minutes at a moderate pace is 476 calories
560 calories