Reference values and improvement of aerodynamic drag in professional cyclists
نویسندگان
چکیده
منابع مشابه
The Aerodynamic Drag of Parafoils
The parafoil is an aerodynamic decelerator that uses the concept of parachute and airfoil aerodynamics. The device has been used as a parachute for high-precision delivering of payload (military and civilian), to recover sounding rockets, for various tethered applications (to carry instrumentation for weather survey, air pollution measurements, radar tracking systems), and as recreational parac...
متن کاملthe survey of the virtual higher education in iran and the ways of its development and improvement
این پژوهش با هدف "بررسی وضعیت موجود آموزش عالی مجازی در ایران و راههای توسعه و ارتقای آن " و با روش توصیفی-تحلیلی و پیمایشی صورت پذیرفته است. بررسی اسنادو مدارک موجود در زمینه آموزش مجازی نشان داد تعداد دانشجویان و مقاطع تحصیلی و رشته محل های دوره های الکترونیکی چندان مطلوب نبوده و از نظر کیفی نیز وضعیت شاخص خدمات آموزشی اساتید و وضعیت شبکه اینترنت در محیط آموزش مجازی نامطلوب است.
Aerodynamic drag in cycling: methods of assessment.
When cycling on level ground at a speed greater than 14 m/s, aerodynamic drag is the most important resistive force. About 90% of the total mechanical power output is necessary to overcome it. Aerodynamic drag is mainly affected by the effective frontal area which is the product of the projected frontal area and the coefficient of drag. The effective frontal area represents the position of the ...
متن کاملPelvic Fractures in Professional Cyclists
BACKGROUND Professional riders demonstrate increased risk factors for such injuries including both extensive time on the bike in addition to a possible underlying osteopenia secondary to the nonimpact nature of the sport. HYPOTHESIS Nonoperative management of stable, nondisplaced pelvic fractures in professional cyclists offers excellent results. STUDY DESIGN Case series. METHODS Three ca...
متن کاملComparison of Catecholamine Values Before and After Exercise-Induced Bronchospasm in Professional Cyclists
Background The concentration of circulating catecholamine increases during exercise in healthy athletes, but the variation has not been studied much in athletes who develop exercise-induced bronchospasm. This study measured changes in circulating catecholamine levels using the induced maximal effort test in the laboratory in professional cyclists sensitive to bronchospasm. Materials and Metho...
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ژورنال
عنوان ژورنال: Journal of Sports Sciences
سال: 2008
ISSN: 0264-0414,1466-447X
DOI: 10.1080/02640410701501697