Calories burned by lifting 10lb dumbbells?
That will depend on a lot of factors, like:
1. Your weight. Calories burned during any activity is always related to how much you weigh. The higher your weight, the more calories you'll burn.
2. What exercises you're doing. Lifting a 10 lb dumbbell in a lateral raise while doing a lunge burns a lot more calories than standing in place, doing a bicep curl.
3. Your current level of fitness/strength. You burn more calories on activities your body isn't accustomed to doing.
4. How intense the exercise is for you. Vigorous lifting that gets your heartrate going and your muscles burning is going to burn more calories than light/moderate lifting. How used you are to the weight you're lifting and whether you're doing any other activities (like cardio intervals in between sets, for example) will determine your caloric burn.
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Ok, its actually kind of a fun little math problem. 1 lb = 3500 calories (for everyone, it doesnt matter how old you are, how tall you are, how much you currently weigh). So if you want to lose 10 lbs, you're going to have to burn 35,000 calories. That means if you get rid of 350 calories a day (either by exercising them off, or eatting 350 calories less than you already are) you'll…
As many as she could lift when she was not pregnant - until her tummy gets in the way and effects her balance or her doctor tells her otherwise. A doctor may put a 10lb or 20 lifting restriction on a pregnant woman, especially later in the pregnancy when lose ligaments make her a prime candidate for injury or balance changes make her likely to fall.