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Study: Smoking joints doesn’t affect regular cannabis users’ cycling ability

Study: Smoking joints doesn't affect regular cannabis users' cycling ability

No difference found in negotiating obstacle course when clean or after three joints, say researchers A new study says that smoking a joint – or three – of cannabis does not affect the ability of regular users of the drug to ride a bicycle.

Led by Dr Benno Hartung of the University Clinic in Düsseldorf, researchers had the 14 participants in the study – 12 men and two women – ride around an obstacle course.

Each undertook a number of rides on the course, the first sober, the others after smoking one, two or three joints, reports the Smell the Truth blog (link is external) on the San Francisco Chronicle’s SF Gate website.

For each puff of the joint, they were required to inhale for four seconds then hold their breath for a further 10 seconds.

They had points deducted for riding errors such as ignoring red traffic signals, hitting obstacles and going off course, enabling researchers to draw up a score for each run.

The study, published in the International Journal of Legal Medicine, concluded: “Hardly any coordinative disturbances could be detected under the influence of high or very high THC concentrations.“Only a few driving faults were observed even under the influence […]

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