Abstract

We studied the earth projection of the body barycentre (CoG) and the pressure centre (CoP), the plantar surfaces and loads of 38 women (18 footballers, mean age ± SD: 23.89±5.66 years, range 18-38 years; 20 sedentaries, mean age ± SD: 22.60±4.77 years, range 18-38 years), and 33 men (14 marathoners, age mean ± SD: 32.07±6.93 years, range 21-43 years; 19 sedentary men, age mean ± SD: 27.37±6.66 years, range 21-42 years). The plantar surfaces of footballers was greater than sedentaries (p<0.05), because of a greater forefeet surface (p<0.001). The plantar surfaces of marathoners was greater than sedentary subjects (p<0.005), because of a greater forefeet and rear feet surface (p<0.005, respectively). Footballers show the forefoot per cent loads significantly higher than sedentaries (p<0.0001), such as marathoners than sedentary subjects (p<0.05). The pressure peak M is significantly lower in active subjects than in sedentary subjects, men (p<0.005) and women (p<0.0001), such as the plantar mean pressure (p<0.01 between men, p<0.05 between women). The CoP, as well CoG, is significantly forward in footballers (p<0.0005) and in marathoners (p<0.005) than in control groups. We suppose that a regular physical activity can influence the plantar loads and, consequently, the earth projection of the body barycentre. Verf.-Referat