Super Strength Robot Legs -  Honda has a new device called "The Walking Assist".  It is experimental robot legs and is expected to help people who work standing or in a crouching position for a long time. It redistributes body weight along its frame and lightens the burden on workers' real legs.

 

The Mighty Mouse

Scientists have been astounded by the creation of a new genetically modified "super mouse" with tremendously amazing physical abilities.  The mouse can run up to six kilometers (3.7 miles) at a speed of 20 meters per minute for five hours or more without stopping. Scientists said that this was equivalent of a man cycling at speed up an Alpine mountain without a break. Although it eats up to 60 per cent more food than an ordinary mouse, the modified mouse does not put on weight. It also lives longer and enjoys an active sex life well into old age – being capable of breeding at three times the normal maximum age.

This will raise the prospect that we can cone day transform people's capacities and strength.

The American scientists who created the mice say they now have a breeding colony of 500.  They said that they were stunned by their abilities, especially given that the animals came about as a result of a standard genetic modification to a single metabolism gene shared with humans.

They emphasized that the aim of their research was not to prepare the way to enhance the genes of people. However, they accepted that it may be possible to use the findings to develop new drugs or treatments that could one day be used to "enhance" the natural abilities of athletes.

The Hybrid Assistive Limb

It is called the HAL, or Hybrid Assistive Limb. It was unveiled in June 2005 at the World Expo in Aichi, Japan.

HAL is the result of 10 years' work by Yoshiyuki Sankai of the University of Tsukuba in Japan, and integrates mechanics, electronics, bionics and robotics in a new field known as cybernics. The most fully developed prototype, HAL 3, is a motor-driven metal "exoskeleton" that you strap onto your legs to power-assist leg movements. A backpack holds a computer with a wireless network connection, and the batteries are on a belt.

Two control systems interact to help the wearer stand, walk and climb stairs. A "bio-cybernic" system uses bioelectric sensors attached to the skin on the legs to monitor signals transmitted from the brain to the muscles. It can do this because when someone intends to stand or walk, the nerve signal to the muscles generates a detectable electric current on the skin's surface. These currents are picked up by the sensors and sent to the computer, which translates the nerve signals into signals of its own for controlling electric motors at the hips and knees of the exoskeleton. It takes a fraction of a second for the motors to respond accordingly, and in fact they respond fractionally faster to the original signal from the brain than the wearer's muscles do.

“The motors respond faster to signals from the wearer's brain than their own muscles”While the bio-cybernic system moves individual elements of the exoskeleton, a second system provides autonomous robotic control of the motors to coordinate these movements and make a task easier overall, helping someone to walk, for instance. The system activates itself automatically once the user starts to move. The first time they walk, its sensors record posture and pattern of motion, and this information is stored in an onboard database for later use. When the user walks again, sensors alert the computer, which recognises the movement and regenerates the stored pattern to provide power-assisted movement. The actions of both systems can be calibrated according to a particular user's needs, for instance to give extra assistance to a weaker limb.

The HAL 4 and HAL 5 prototypes, which will also be demonstrated at Expo 2005, don't just help a person to walk. They have an upper part to assist the arms, and will help a person lift up to 40 kilograms more than they can manage unaided. The new HALs will also eliminate the need for a backpack. Instead, the computer and wireless connection have been shrunk to fit in a pouch attached to the suit's belt. HAL 5 also has smaller motor housings, making the suit much less bulky around the hips and knees.

HAL 3 weighs 22 kilograms, but the help it gives the user is more than enough to compensate for this. "It's like riding on a robot, rather than wearing one," says Sankai. He adds that HAL 4 will weigh 17 kilograms, and he hopes HAL 5 may be lighter still.

Sankai has had many requests for the devices from people with brain and spinal injuries, so he is planning to extend the suit's applications to include medical rehabilitation. The first commercial suits are likely to cost between 1.5 and 2 million yen ($14,000 to $19,000).