Internet supplements - a click towards poor performance

New Exercise and Fitness Review

Sports Medicine Australia, the peak organisation for professionals in sports medicine and sports science, has urged those considering purchasing performance enhancing products via the internet to think again.

With the recent news that an elite footballer is facing a two year playing ban for inadvertently purchasing a banned substance via the internet, highlights the need for caution to be exercised when dealing with online purchase of supplements.

Sports Medicine Australia spokesperson and sports physician Dr Peter Larkins said with the prevalence of online ‘drug’ shopping at an all time high, all shoppers need to realise the dangers associated with dealing with products such as these in the online space.

“There are a lot of people purchasing products online in the belief of outcomes such as enhanced sporting performance and weight loss,” said Dr Peter Larkins.

“Quite often they are unaware that the products they are purchasing contain banned substances such as anabolic substances and amphetamines.

“Online sites target those looking for a quick fix and often they don’t always disclose their product ingredients raising the prospect of unsuspecting buyers, purchasing masked, harmful and often banned substances.

“Sportspeople, whether at an elite or community level considering purchasing supplements of any kind should be aware that the internet is not the place to buy.

“Supplements should only be purchased from reputable outlets and always be bought in consultation with a suitable sports medicine practitioner or sports dietitian .

“This will ensure that what is purchased is not a waste of money, will not be detrimental to one’s health and not a banned substance” said Dr Peter Larkins.

For more on the dangers of performance enhancing drugs Sports Medicine Australia has developed the CleanEdge website which provides information on all aspects of enhancing sporting performance.

Source:
www.cleanedge.com.au

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Internet supplements - a click towards poor performance

Active coping towards predatory stress is associated with lower corticosterone and pr

New Exercise and Fitness Review

Active coping towards predatory stress is associated with lower corticosterone and pr

Active coping towards predatory stress is associated with lower corticosterone and progesterone plasma levels and decreased methylation in the medial amygdala vasopressin system.

Horm Behav. 2014 Aug 12;

Authors: Bowen MT, Hari Dass SA, Booth J, Suraev A, Vyas A, McGregor IS

Abstract
An active coping style displayed under stress – which involves proactive investigatory responses towards environmental threats – has been associated with reduced vulnerability to psychiatric illness. However, the neurobiological determinants of coping styles are not well understood. When rats are exposed to a naturalistic stressor (cat fur) in a group, some individuals in the group show robust active investigation of the stimulus while others show a passive response involving retreat, immobility and close aggregation with conspecifics. Here we explored endocrine and epigenetic correlates of these contrasting coping styles. Male Wistar rats (n=48) were exposed to cat fur in groups of 4 and the passive and active responders were identified and assessed for endocrine and epigenetic differences. Three days after the final cat fur exposure, active responders had substantially lower plasma levels of corticosterone and progesterone than passive responders. Plasma and testicular testosterone levels did not differ between active and passive responders. Active responders had markedly less methylation of the AVP CGCG promoter region located at base 4970 in the posterodorsal region of the medial amygdala but did not differ in the methylation status of the CCGG sequence located at base 2243. This is in agreement with prior research suggesting that AVP and progesterone act in opposition within the medial amygdala to modulate stress-related behaviours. The present study reports striking endocrine and epigenetic differences between active and passive responders, providing insight into potential systems involved in the manifestation of differing coping styles.

PMID: 25127982 [PubMed - as supplied by publisher]

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Active coping towards predatory stress is associated with lower corticosterone and pr

Relationships between body image, nutritional supplement use, and attitudes towards d

New Exercise and Fitness Review

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Relationships between body image, nutritional supplement use, and attitudes towards d