Well , this is purely a PHYSIOLOGICAL observation , but notice how the heels cause the Plantar's tendons to flex downward , and thus cause a disproportionate hyperextension of the calf and quadracept muscles .

Is that safe ?


2005 Model . Two Fast Eddy stickers , a bell and a clock . She's Lola . She tinkles and keeps time . http://s649.photobucket.com/albums/uu211/britbike05/