A weight-lifter may experience a blackout while lifting. Working with a spotter can help to avoid injury and to call for help if needed.
Features of weight-lifter's blackout:
The weight-lifter experiences a sudden loss of consciousness (blackout).
(2) This may be preceded by straining, a Valsalva maneurver and/or hyperventilation.
(3) The risk may be increased by concurrent illness and/or medications.
(4) Exclusion of other explanations (seizure, stroke, etc)
The mechanism is a sudden drop in cerebral perfusion.
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Specialty: Surgery, orthopedic