Rearfoot pronation during running
Thorwesten L, Fromme A, Winkelmann F, Reer R, Jerosch J,
Research article in edited proceedings (conference)
Abstract
The correlation between rearfoot pronation and cardiovascular strain was examined among 34 test persons. On this occasion endurance-trained volunteers (age: 26.5±4.7 years; weight: 70.4±8.3 kg; height: 181.7±8.7 cm) were compared with not endurance-trained (age: 23.8±3.6 years; weight: 75.5±8. l kg; height: 180.9±7.5 cm). The examinations were carried out on a treadmill using a highfrequency motion analyzing system. The heart rate, the lactate concentration drawn from the ear lobe as weil as the rearfoot pronation were measured. There were signi.ficant differences regarding heart rate and blood lactate concentration between endurance-trained and not endurance-trained volunteers. The pronation angle increased with raising speed but the extent of pronation was lower among the group of endurance-trained sportsmen. With reference to the pronation angle, however, we found no significant differences between both groups of volunteers. The alteration of the pronation angle was calculated in relation to the pronation angle at a speed of 8 km/h. lhis difference was statistically significant for different speed levels. lt was 1.1 ° at a speed of 16 km/h among the endurance-trained and 2.5° among the not endurance-trained. In the same way as the absolute pronation angle the differences between both groups were not statistically significant as weil. Among the endurance-trained volunteers we found no statistically significant correlation between the blood lactate concentration and the pronation angle. With regard to the not endurance-trained test persons, however, there was a highly significant difference between both parameters.
Details zur Publikation
Release year: 1995
Language in which the publication is written: English