Muscle efficiency

Former Member
Former Member
Does anyone know how efficient human muscle tissue is as a means of converting stored energy into mechanical work? More precisely, how much stored energy (in terms of ATP, fatty acids or glycogen -- say, expressed in calories) must a muscle burn in order to perform one foot-pound of mechanical work? Of course this will depend on a lot of things (age, conditioning, fatigue level,etc.), but just a range or ballpark estimate would be useful. (I am trying to estimate the energy expenditure of various activities using this approach.)
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  • Former Member
    Former Member
    Someone has determined a while ago, how many calories muscles burn, pound of muscle, per hour. also, how mahy calories muscles burn under certain activities. If you want to know how many calories you need, research that number, and multiply by your lean body mass. That's your basic caloric need at rest. then adjust for the activities. You can probably find that with some net searching... I've seen and used it before. Fat fdoesn't requre much in a way of spent calories to 'live', so that number is neglectable.
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  • Former Member
    Former Member
    Someone has determined a while ago, how many calories muscles burn, pound of muscle, per hour. also, how mahy calories muscles burn under certain activities. If you want to know how many calories you need, research that number, and multiply by your lean body mass. That's your basic caloric need at rest. then adjust for the activities. You can probably find that with some net searching... I've seen and used it before. Fat fdoesn't requre much in a way of spent calories to 'live', so that number is neglectable.
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