An invention that saves energy when climbing stairs.

This device can be easily detached and reattached to various types of staircases, at a relatively low cost.

Source: androidheadlines.com

Scientists at two universities in Atlanta, Georgia, in the southeastern United States, have invented a device that makes going up and down stairs easier.

This information was recently published in the journal Public Library of Science Plos One. According to the report, scientists have invented a spring-loaded device attached to stair treads that helps restore energy for those using stairs.

With this device, users will save 26% of the energy expended by impact and braking forces on their ankles when descending stairs, and free up 37% of the knee force when ascending stairs.

Energy release is achieved through spring-loaded steps and pressure sensors attached to the device. When a person steps down a stair, the step is slowly lowered until it is level with the next step, saving energy for the user.

This cycle continues until someone steps onto the ladder. The user places one foot on a sensor installed on the upper rungs, releasing the latch on the lower rung. This creates a thrust that acts on the user's other foot, making it easier for them to lift their foot.

According to scientists, this device can be easily detached and reattached to various types of staircases, at a relatively low cost.

For buildings without elevators or escalators, especially multi-story apartment buildings, it would be a useful solution for situations requiring mobility assistance for a limited time, such as patients recovering from surgery or pregnant women.

According to Vietnam+