The purpose of this research was to study the impact
phenomena of a tennis ball striking a hard surface.
Stroboscopic photography was used to collect the ball's
impact images from seven angles of incidence, ranging from
-23 degrees to -70 degrees with zero, top and back initial
spin respectively.
Through...
As an increase in Americans seek their leisure experience in
rationalized forms of play, certain symptoms of non-enjoyment, non-flow
achievement are present; i.e., aggression. This relationship between
aggression and rationalized play has widely manifested in university
intramural sports settings. The review of literature provides the
logical development for this relationship...
Ninety-two physicians from six different medical specialty
areas were participants in an opinion survey concerning corporate
executive fitness. The survey was comprised of 21 statements
related to such areas as fitness, nutrition, implementation
of specific programs and cost effectiveness. Descriptive
research methods were utilized to analyze results.
Physicians surveyed were...
Forty-five young adult males were given 30 trials of Isometric
knee extension and 30 trials of isometric knee flexion. Each trial
consisted of a maximum of three second exertion followed by a 10
second intertrial rest interval. Subjects were ranked on the basis
of the mean of the first three...