Science News
from research organizations

Stimulants may have detrimental effects on muscle control

Date:
April 20, 2017
Source:
Wiley
Summary:
Current or past use of methamphetamine or other stimulants may lead to psychomotor control deficits, or a reduced ability to control physical movement, new research has found.
Share:
FULL STORY

Researchers have found that current or past use of methamphetamine or other stimulants may lead to psychomotor control deficits, or a reduced ability to control physical movement.

Study participants were asked to hold their dominant arm in various positions, one at a time, and maintain each position for 60 seconds, with a 30-second rest between each. Investigators found impairments in terms of both tremor and arm-droop in heavy stimulant users. Tremor, but not arm-droop, persisted for at least 18 months following withdrawal from stimulant use.

"Psychomotor deficits can make it difficult to perform everyday tasks, and the detection of psychomotor deficiencies might be considered an early marker for movement disorders," said Prof. Andrew Parrott, senior author of The Journal of Clinical Pharmacology study.


Story Source:

Materials provided by Wiley. Note: Content may be edited for style and length.


Journal Reference:

  1. Luke A. Downey, Brenda Tysse, Talitha C. Ford, Angela C. Samuels, Rory P. Wilson, Andrew C. Parrott. Psychomotor Tremor and Proprioceptive Control Problems in Current and Former Stimulant Drug Users: An Accelerometer Study of Heavy Users of Amphetamine, MDMA, and Other Recreational Stimulants. The Journal of Clinical Pharmacology, 2017; DOI: 10.1002/jcph.925

Cite This Page:

Wiley. "Stimulants may have detrimental effects on muscle control." ScienceDaily. ScienceDaily, 20 April 2017. <www.sciencedaily.com/releases/2017/04/170420090124.htm>.
Wiley. (2017, April 20). Stimulants may have detrimental effects on muscle control. ScienceDaily. Retrieved May 28, 2017 from www.sciencedaily.com/releases/2017/04/170420090124.htm
Wiley. "Stimulants may have detrimental effects on muscle control." ScienceDaily. www.sciencedaily.com/releases/2017/04/170420090124.htm (accessed May 28, 2017).

RELATED STORIES