Background
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A common staple in science fiction is the idea that we can augment humans by replacing limbs with mechanical substitutions that enable superhuman feats - weightlifter like strength in a slender incognito package, invisibility, Bruce Lee speed reflexes, etc. None of this is implausible at all since we currently make prosthetic implants, and it's only a matter of time until the technology and power of these prosthesis exceeds the capabilities of their natural parts. 

Problem
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Most implants that exist today require relatively little power since their capabilities are very limited. But when it comes to a cyber arm that can punch through walls, the need for more energy (of any type) will be higher. 

Questions
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* Assuming that an augmented person has 2 cyber arms and 2 cyber legs that enables him to jump a 6 feet (1.8 m) wall easily without using his hands. He can also lift and carry a 650lb (300 kg) vending machine with his arms. How much higher would his short term and long term energy needs be?
* Is the human body capable of covering these energy deficits by regular biological methods (burning fats, consuming carbohydrates and sugars, ATP production, etc.) and increased food intake?
* Are there scientifically viable methods of inserting a power supply into a human that would …

	+ provide enough energy to power these augments if the body isn't capable of doing so normally
	+ or reduce the need for increased food consumption?