![]() ![]() A factor 1.2 applies to someone who is pretty inactive, while 1.9 is very active. Activity level factors range from 1.2 1.9. The conformity of these findings with the present literature and the possible mechanisms behind them as well as its influence on theoretical calculations of energy turnover (ET) based on activity factors expressed as multiples of RMR are further discussed. To determine your TDEE, multiply your BMR by the factor that best reflects the amount of physical activity you do most days. The athletes were also found to have 10% lower R-values (P < 0.01) indicating higher fat oxidation. Several authors have also addressed the influence of previous physical activity on basal metabolic rate (BMR) and RMR (3,6,31,38). Undereating has been shown to lower resting metabolic rate (RMR) (38,46,51), while overeating increases RMR (31). The athletes had a 13% higher (P < 0.001) BMR than controls if related to FFM and 16% (P = 0.001) if related to both FFM and fat mass (FM). Energy balance is an extrinsic factor known to influence metabolic rate. There were no corresponding differences found in the nonathletic control group. There are two steps necessary to determine your daily calorie needs: first, you must calculate your BMR second, you multiply your BMR by an activity factor. The athletes were shown to have a significantly higher BMR than was expected from calculations based on body mass (16%, P < 0.05) or body composition (12%, P < 0.05). ![]() Comparisons with theoretical calculations of BMR were also made. BMR CALCULATOR WITH ACTIVITY FACTOR FREEThis article presents data on BMR from elite endurance athletes (4 female and 4 male), at least 39 h after their last training session, in comparison with sedentary nonathletic controls matched for sex and fat free mass (FFM). The BMR value is then multiplied by an activity factor that varies from 1.2-1.95 depending on the persons physical activity. In addition to factors such as fat free mass, hormonal status, genetics and energy balance, previous physical activity has been shown to influence energy turnover during resting (RMR = resting metabolic rate) or basal conditions (BMR = basal metabolic rate). ![]()
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