Energy expended during sexual activity

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But how many calories does a good romp really burn? The researchers recruited 21 healthy, active, heterosexual couples in their early 20s to jog on treadmills at about 65 percent of their maximum heart rates for 30 minutes. While running, they wore lightweight armband monitors that measure energy expenditure in calories and exercise intensity in METs, or metabolic equivalent of task.

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If you're trying to burn calories while having sex, you may be disappointed. Of all of the things that you can do to break a sweat, sex is probably up there with one of the most fun. But is sex actually a good workout?

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Between October and June they shuffle out of auditoriums, gymnasiums and classrooms, their eyes adjusting to the sunlight as their fingers fumble to awaken cell phones that have been silent for four consecutive hours. Some raise a hand to their foreheads, as though trying to rub away a headache. Others linger in front of the parking lot, unsure of what to do next.

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When you think about physical activity, running, hitting the weights, or even swimming may come to mind. But what about sex? You may have heard it before: Getting busy with your partner makes for a great workout. Is there validity to this claim?

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OBJECTIVE: To determine energy expenditure in kilocalories kcal during sexual activity in young healthy couples in their natural environment and compare it to a session of endurance exercise. Free living energy expenditure during sexual activity and the endurance exercise was measured using the portable mini SenseWear armband. Perceived energy expenditure, perception of effort, fatigue and pleasure were also assessed after sexual activity.

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Of all the ways a person could sweat, a roll in the hay is one of the most fun. But does sex actually burn a good number of calories? One study found that sex burned more than calories, at least for men.

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The metabolic equivalent of task MET is the objective measure of the ratio of the rate at which a person expends energyrelative to the mass of that person, while performing some specific physical activity compared to a reference, set by convention at 3. The original definition of metabolic equivalent is the oxygen used by a person in milliliter per minute per kilogram body mass divided by 3. Still another definition of 1 MET is

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Ever wondered what kind of workout you can get between the sheets? Of course you have — hasn't everyone? Some people think that a romp in the sheets is an enjoyable and calorie-burning form of exercise in itself. But the truth is that the exact number of calories you burn during sex depends on a variety of factors, including your weight and how vigorous your romp is.

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