Decreased nitric oxide levels and bone turnover in amenorrheic athletes with spinal osteopenia.

Amenorrheic athletes have been likened to postmenopausal women, with low estrogen levels and osteopenia. It has been suggested that estrogen exerts its antiresorptive actions on bone via a nitric oxide (NO)-dependent mechanism. This study investigated whether the mechanism of bone loss in amenorrheic athletes is similar to that of postmenopausal women with reduced NO levels and high bone turnover.

Indications of prevalence, practice and effects of anabolic steroid use in Great Britain.

A growing number of reports of anabolic-androgenic streroid (AS) use in Great Britain (GB) among non-competitive groups have emerged since the beginning of 1990s. A study was commissioned by the Departments of Health for England, Scotland and Wales, to explore the extent and uses of AS from the public health point of view. As a part of a wider investigation into AS use, 21 gymnasia in England, Scotland and Wales were surveyed by questionnaire.

An epidemiological investigation of training and injury patterns in British triathletes.

During the competitive season of 1990, 155 British triathletes whose competitive distances varied from sprint to full ironman, and who self-classified themselves as recreational, intermediate or élite, kept a training diary for an 8-week period. They gave details of injuries sustained while training for, or competing in, triathlons. The mean(s.

Physiological characteristics of elite and club level female triathletes during running.

Most studies of the triathlon have looked at male triathletes with respect to the longer distance events such as the Hawaii Ironman Triathlon. The purpose of this study was to investigate and compare the physiological characteristics and training protocols of elite and competitive (club) women triathletes who compete at Olympic distance (1.5 km swim, 40 km cycle, 10 km run) to examine the relationship between these factors and running performance in the triathlon.