

Mountain rescue has grown wings. Fitness is key for outdoor activities such as running or hiking.
Those who need a little boost can soon turn to a startup from Shanghai.
Its 1.8kg exoskeleton for thighs can offset loads by some 30kg on steep hills, and give a 10kg horizontal push to those moving at speeds greater than 3 m/ph.
The patented system comprises a synchronous motor, movement and position sensors as well as processing power and artificial intelligence.
By constantly tracking users’ leg movements it can automatically adapt support for each individual step within nine different ‘modes’.
With 100 watt hours, the exchangeable battery lasts for around 15 miles.
A portable wind turbine could prove handy too.