Эндоканнабиноиды и бег

Recent findings show that exercise increases serum
concentrations of endocannabinoids, a result suggestive of a
new possible explanation for a number of these changes.
Further research is necessary to characterise the precise
nature of this endocannabinoid response to exercise, speci-
fically the relative importance of factors such as the nature of
the activity, exercise duration, exercise intensity, sex, and
age. In addition, animal models can be used to identify the
production and binding sites of endocannabinoids as well as
their functional role in exercise.
The cannabinoids produce psychological states that closely
parallel several experiences described as being related to the
runner’s high. Compared with the opioid analgesics, the
analgesia produced by the endocannabinoid system is more
consistent with exercise induced analgesia. Activation of the
endocannabinoid system also produces sedation, anxiolysis, a
sense of wellbeing, reduced attentional capacity, impaired
working memory ability, and difficulty in time estimation.
This behavioural profile is similar to the psychological
experiences reported by long distance runners. Considerable
research is needed to clarify to what extent the endocanna-
binoid system might be responsible for the exercise induced
changes in mental status. Nevertheless, a significant upre-
gulation of serum concentrations of endocannabinoids has
recently been reported in endurance athletes, and studies are
underway to explore this further in laboratory animals.
The close interaction of endocannabinoids with dopamine
shows that they have a function in the brain’s reward system
and therefore possibly addiction. The endocannabinoid
system is also implicated in the control of motor activity
mediated through the basal ganglia, and central activation of
anandamide in freely moving rats has been demonstrated.
Finally, the endocannabinoid system mediates peripheral
effects such as vasodilation and bronchodilation that may
play a contributory role in the body’s response to exercise.

Endocannabinoids and exercise