Several techniques have been used for selecting motile spermatozoa including Percoll and albumin gradients, swim-up, and glass wool filtration. A high yield of motile spermatozoa as well as an enhancement of motility are ...

Since a first proof-of-concept for an autonomous micro-swimming device appeared in 2005 a strong interest on the subject ensued. The most common configuration consists of a cell driven by an external propeller, bio-inspired ...

The objective of this study was to analyze the effect of different sports on bone mineral density (BMD) accrual among male adolescents during a 9-mo follow-up. The sample was composed of 82 boys (control [n = 13], basketball ...

The swim-up and Percoll gradient techniques were evaluated for the selection of frozen bovine spermatozoa to be used on an in vitro fertilization system. The parameters assayed were: concentration, morphology, motility and ...

The research approaches the motor development e its phases, as well as the element of playing and the toy during childhood, a summary of swimming and children swimming, relating between those areas. The purpose was to ...