It is concept that has been considered by many, but a gym in the US is one of the first to utilise the idea of humans generating the electricity that powers the facilities of the gym. The Green Microgym in Portland, Oregon, uses specially-adapted exercise bikes that recycle energy generated from the people using them.

Similar to the concept of how a windmill makes energy, the gym owner, Adam Boesel, decided that he could apply this to the exercise bikes used in the gym. Therefore, using a device known as the Human Dynamo – which is connected to a battery that stores the energy generated from those who are pedalling – the energy captured in this box can then be used to power any facilities used in the gym.

For example, large spinning group classes which involve many people exercising at the same would prove an ideal environment to utilise the Human Dynamo. However, because of the technology behind this, it is likely to be costly to purchase, which for many gyms may not prove very appropriate due to the tight economy of recent times.

Whilst they may not be financially viable for many gyms, once do they become more affordable then environmentally friendly exercise equipment is sure to become a more attractive and cheaper alternative for gyms, as it can help to save energy costs in the long term. This is in addition of course, to helping the environment.

So, next time you are on an exercise bike, think about how the gym could one day be helping you to green your exercise routine!