up to 70 per cent of recreational and competitive runners sustain overuse injuries during any 12-month period.

40-50% in competitive runners, 17-18% in sprinters will develop Achilles' tendonitis with risk of rupture

runners who strike the forefoot put 20% more forces through the ankle and Achilles' tendon with increased risk of Achilles' tendonitis, foot fractures and plantar fasciitis ¹⁾

in comparison, runners who are heel strikers put 16% greater load through the knee increasing knee injury risk