Wednesday, August 18, 2010
The 'Science' of Carrying Loads on Your Head
Scientific research in the UK and South Africa shows that African women can carry up to 20% of their
bodyweight with no additional energy exertion on level ground and that any load above 20% of their body weight incurs a proportional energy cost. For example, carrying 30% of BM (body mass) requires a 10% increase in energy - the 'free ride' hypothesis. With heavier loads, the energy increase was only half that of men carrying the same loads on their backs.
The pictures in this posting are thanks to Kevin and Angela, Canadian missionaries serving at the CEML Hospital.