[Reduction of physical endurance as an early symptom in Hodgkin lymphoma].
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Hodgkin Disease↗
Biomedical subjects
A Stacoff
Publications and source records attributed to A Stacoff.
[Running injuries and running shoe construction: demonstration of possible correlations].
Previous investigations about the running shoe design demonstrated a relationship between the geometry of the shoe sole, the ground reaction forces and the foot movements during impact. Thus, the question arised in which way this relationship would influence the internal forces. The purpose of this investigation was to model the impact situation and to simulate different sole geometries in order to calculate the internal forces and the pronation velocity. The results show that the geometry has a small effect upon the joint forces, but a very high effect on the pronation velocity. As a consequence, the joint forces changed only by 10% or less, but the load of the structures which are stressed by pronation is increased up to 200%. Thus, the control of the initial pronation is much more important in current running shoe design than the shock-absorption.
Ankle Injuries↗
[Sports show support inlays. A biomechanical comparison of three different types of arch support (author's transl)].
The effect of three different types of support inlays for sports shoes was investigated in the basis of measurements made on 37 athletes who use such shoes in their daily training. The date were obtained from force measurements (repulsion force on the ground) and with the aid of films. The investigation showed that there was no difference in the average values of the three types of support (loose inlay, glued-in inlay and support permanently attached to the shoe). All the supports reduced medial bending at the ankle joint. None of them caused a reduction medial bending at the ankle joint. None of them caused a reduction of repulsion forces when the foot came into contact with the support. In propulsion, all the supports caused an increase in the lateral outturn of the foot. The scatter range in the measurements obtained with the loose inlay was greater; a connection was found between this and the possibility of the foot slipping in the shoe.
Biomechanical Phenomena↗
[Torsion movement of the foot in landing after a jump].
The risk of injury during landing after a jump is considered high, because large moments can force the foot into a distortion. The goals of this investigation were to measure the foot-movements during landing and to check the hypothesis, whether with changes at the shoe sole the rearfoot can be brought into a vertical and therefore stable position during the landing movement. The results show, that during landing the foot twists between forefoot and rearfoot. This movement is referred to as torsion and is described in detail in the anatomical literature. With grooves in the shoe sole the torsion with shoes comes closer to the barefoot values. The rearfoot is stabilized by 5-10 degrees and the risk of injury is decreased.
Ankle Injuries↗