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F D Winter

Publications and source records attributed to F D Winter.

4 recordsLinked to original sources
PubMed1989

Effects of 100% oxygen on performance of professional soccer players.

Supplemental oxygen is currently widely utilized in conjunction with athletic competition. To assess the utility of this practice, 12 professional soccer players performed two bouts of exhaustive exercise separated by 5 minutes of rest ("recovery period"). During the recovery period, the subjects breathed either room air or 100% oxygen, assigned by randomized, double-blind design. The entire procedure was repeated on each subject using the opposite gas. The administration of enriched oxygen during the recovery period had no effect on plasma lactate levels or on performance during the second period of exercise. The subjects were unable to identify which gas they received. In conclusion, data from this study indicate that using 100% oxygen applied for short periods offers no advantage on recovery from exhaustive exercise or on subsequent exercise performance.

Adult↗
PubMedDate not supplied

PET imaging using gamma cameras.

This paper will review the recent advances and future developments in the field of coincidence imaging of positron emitters with a conventional Anger-type gamma camera. FDG imaging has shown high clinical importance in cardiology, neurology and especially oncology. Since access to full ring PET is mainly limited to university hospitals, there have been new developments allowing PET imaging on the standard Anger gamma camera. First the principles of coincidence imaging on a gamma camera will be reviewed. We will discuss the limitations of this technique, and the techniques used to partly overcome these limitations. The different configurations of the gamma camera operating in coincidence mode are pointed out. Different corrections for image degrading effects and reconstruction methods are evaluated in the final part.

Calibration↗