How imperfect is the human machine

In summary, the conversation discusses the relationship between weight, distance, and energy expenditure. It also mentions the varying factors that can affect energy burn and the efficiency of muscle contraction. The book referenced states that the human body operates at around 20% efficiency, which is considered to be a good level of efficiency.
  • #1
bobie
Gold Member
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If we pull/ push a weight of 10kg and dislocate it 1 meter the energy spent is 10 joules, can someone tell me roughly if 10 j is 100% can anyone tell me how much energy (calories) has been burned /wasted in excess? I suppose it can vary in different persons and by different factors, I'd like to get just a rough idea, 120%?
 
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  • #2
For every Joule of work, you burn 4 to 5 Joules. Google muscle efficiency for more details.
 
  • #3
Thanks, very helpful
 
  • #5
According to a book I'm reading, the human body is running roughly at 20% efficiency. Seeing that nothing can be at 100% efficiency (2nd law of thermodynamics) I'd say the human body is doing perfectly well.
 

What are some common imperfections of the human machine?

Some common imperfections of the human machine include genetic disorders, susceptibility to disease and injury, and aging.

What factors contribute to the imperfections of the human machine?

The imperfections of the human machine can be attributed to a combination of genetic, environmental, and lifestyle factors.

How does the human body compensate for these imperfections?

The human body has various mechanisms in place to compensate for imperfections, such as the immune system to fight off disease and the ability to heal and regenerate cells.

Can the imperfections of the human machine be improved?

While some imperfections may be improved through medical advancements and lifestyle changes, it is also important to recognize and accept the natural limitations of the human body.

How can we maintain the health of our human machine?

We can maintain the health of our human machine by practicing healthy habits such as regular exercise, a balanced diet, and managing stress levels. Regular check-ups and seeking medical attention when needed can also help maintain overall health.

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