Sex segregation in competitive sports is regarded as fair. Before puberty boys and girls do not differ in height, muscle and bone mass. Testosterone (T) exposure during puberty leads to an ultimate average greater height in men of 12-15 cm, longer and larger bones and muscle mass and strength and higher hemoglobin levels. Postpubertal androgen ablation reverses, at least in part, previous anabo...

O Ol ly ym mp pi ic c E Ex xp pe er ri im me en nt ta al l S St ta at te e F Fo or re es st t S Sy yn nt th he es si is s o of f R Ri ip pa ar ri ia an n R Re es se ea ar rc ch h a an nd d M Mo on ni it to or ri in ng g P Pe et te er r A A.. B Bi is ss so on n a an nd d S St te ev ve en n M M.. W Wo on nd dz ze el ll l U US SD DA A F Fo or re es st t S Se er rv vi ic ce e P Pa ac ci if fi ic c ...

This study, which is a strategic study with a mixed research approach aimed to identify obstacles facing the academies of Iranian Basketball Federation. The population comprises board of directors and committees responsible for Education and Talent Spotting Association, academy administrators, physical education instructors, qualified experts, professors, coaches, referees and heads of delegati...

Water-soluble ions such as sulfate may have great impacts on atmospheric pollution. To determine the deposition effect of PM2.5 sulfates, the major PM2.5 constituents, in the forest canopy in Beijing, China, an investigation was carried out in an urban forest, Olympic Forest Park, and a suburban forest, Jiufeng National Forest Park. We measured the vertical distributions of sulfate by using mon...

physical education being applied in nature, the role of scientific research has been widely challenged in this field. applying a bibliometric analysis method, the present study tries to investigate scientific achievement in sports and exercises and examine its relation to practical performance, using scholarly papers indexed in isi as substitutes of scientific productivity and medals won in oly...