Life Sciences Commons^™

Critical Analysis Of Cerebrovascular Autoregulation During Repeated Head-Up Tilt., R L Hughson, M R Edwards, D D O'Leary, J K Shoemaker

Kinesiology Publications

BACKGROUND AND PURPOSE: Cerebrovascular autoregulation has been described with a phase lead of cerebral blood flow preceding changes in cerebral perfusion pressure (CPP), but there has been less focus on the effect of CPP on cerebral vascular resistance. We investigated these relations during spontaneous fluctuations (control) and repeated head-up tilt.

METHODS: Eight healthy adults were studied in supine rest and repeated tilt with 10-second supine, 10 seconds at 45 degrees head-up tilt for a total of 12 cycles. Cerebral blood flow was estimated from mean flow velocity (MFV) by transcranial Doppler ultrasound, CPP was estimated from corrected finger pressure (CPP(F)), …

Exploration Of Federal Sport Policy On Youth Elite Sport In Canada: A Case Study Of Gymnastics Canada Gymnastique, Laura Misener

Kinesiology Publications

A case study of Gymnastics Canada Gymnastique aided in creating a contemporary framework for youth sport policy development. Youth involved in elite sport are in a subsidiary position to those who control the sport environment, and therefore are in need of certain levels of protection. High performance youth athletes may be subject to numerous problems such as competitive anxiety, disrupted family life, and excessive physiological and psychological stress. In order to explore these issues in relation to federal sport policy, the following sub-problems were identified: (a) What are the process(es), legitimation(s) (rationale) and attribution(s) (strategies for action) of federal government …