Increase of muscle tonus after tobacco smoking

Six subjects smoked half a cigarette with different nicotine levels and inter-puff intervals. EMG readings were taken before, during, and after smoking from the pars descendens of musculus trapezius. During smoking it was found that the muscle tonus increased in a dose- dependent fashion. Two to thr...

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Bibliographic Details
Published in:Addictive behaviors 1977, Vol.2 (4), p.203-206
Main Authors: Fagerstrom, Karl-Olov, Gotestam, K Gunnar
Format: Article
Language:English
Subjects:
Adult
Conditioning (Psychology)
Dose-Response Relationship, Drug
Electromyography
Humans
Middle Aged
Muscle Relaxation - drug effects
Muscle Tonus - drug effects
Nicotine - pharmacology
Smoking - psychology
Time Factors
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Summary:Six subjects smoked half a cigarette with different nicotine levels and inter-puff intervals. EMG readings were taken before, during, and after smoking from the pars descendens of musculus trapezius. During smoking it was found that the muscle tonus increased in a dose- dependent fashion. Two to three minutes after smoking the EMG-level had returned to the initial (pre-smoking) level. The two conflicting phenomena which follow smoking i.e. increased autonomic activity and the feeling of relaxation, are discussed.
ISSN:0306-4603
1873-6327
DOI:10.1016/0306-4603(77)90018-1