Human alveolar echinococcosis in Poland: 1990-2011.

Background: Alveolar echinococcosis (AE) caused by Echinococcus multilocularis infections is a dangerous old disease in the Northern Hemisphere. The aim of the paper was to collect and analyze data on human AE in Poland in the last two decades.

Methodology/principal Findings: The sources of data were both the cases officially registered and detected by an active field and laboratory surveillance.

Terminology and practice in control of some parasitic zoonoses.

Some terminology, based on tradition and still widely used in practice, is still scientifically incorrect.

Using squat repetition maximum testing to determine hamstring resistance training exercise loads.

The purpose of this study was to determine whether there is a linear relationship between the squat and a variety of hamstring resistance training exercises, and whether this relationship differs on the basis of sex. This study also sought to create prediction equations for the determination of hamstring exercise load based on the squat load. Repetition maximums of the squat, as well as 4 common hamstring resistance training exercises including the seated leg curl, stiff leg dead lift, single leg dead lift, and good morning exercise, were determined for each subject.