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| mature, jamaica, easy weight loss, baby boomer, diet tips, training tips, medicaid, fat girl , , bbw woman , bbw anal , chubby gay , prevention, kettlebell, in line skating, information, | Each litre of oxygen that you consume generates approximately five calories of energy. For example, if you were to exercise for 30 minutes and consume 30 litres of oxygen, you would have expended approximately 150 calories (five calories x 30 litres). Without directly measuring oxygen consumption, it's difficult to establish an accurate estimate of energy expenditure during a workout. A second factor affecting the reliability of calorie counters is the difference between net and gross energy expenditure. Gross fast energy expenditure refers to the energy cost of fast exercise fast plus the metabolic rate. Net energy expenditure refers to just the energy cost of exercise. Calorie counters often display gross energy expenditure - so they don't accurately represent the additional energy that is used during exercise. In fact, during a 45 minute workout, net and gross energy expenditure can differ by almost 30% (Utter et al., |
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| When performed without restricting calories, moderate aerobic exercise has only a very small effect on body fat levels. Why moderate aerobic exercise is so ineffective This isn't surprising when you consider how many calories are contained in a pound of fat. Each pound of fat fat girl contains the equivalent of approximately 3,555 calories (McArdle et al., fat girl 1991). fat girl The most fundamental aspect of any fat loss programme is to create a caloric deficit - to expend more calories than are consumed. Unfortunately, moderate aerobic exercise has only a moderate caloric requirement - around 187 calories per session (Utter et al., 1998). Based on this estimate, it could take up to 19 moderate aerobic workouts to lose just 0.45kg (1lb) of fat. This might come as a surprise to those of you using the calorie counters on exercise machines to monitor energy expenditure during a workout. Unfortunately, these digital readouts are not always accurate. The most reliable way to assess energy expenditure during exercise is to measure oxygen consumption. |
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