Related Experiment Videos
Aneurysmal subarachnoid hemorrhage associated with weight training: three case reports
M J Haykowsky1, J M Findlay, A P Ignaszewski
1Department of Physical Education and Sports Studies, University of Alberta, Edmonton, Canada.
Summary
Weight training, especially with the Valsalva maneuver, can dangerously spike blood pressure. This may increase the risk of brain aneurysm rupture, leading to subarachnoid hemorrhage (SAH).
Area of Science:
- Neurology
- Cardiology
- Sports Medicine
Background:
- Weight training is a common fitness activity in North America.
- It is generally considered safe with minimal risk of severe injury.
- The Valsalva maneuver during exercise can cause significant increases in arterial pressure.
Observation:
- Repetitive weight training, particularly involving the Valsalva maneuver, can elevate arterial pressure to extreme levels (e.g., 480/350 mm Hg).
- This pressure surge is transmitted to the brain's blood vessels, increasing cerebral arterial transmural pressure.
- Such increases may pose a risk for rupturing pre-existing intracranial aneurysms.
Findings:
- The study reports three cases of subarachnoid hemorrhage (SAH).
- These SAH cases were linked to specific weight training exercises: bicep curls and leg presses.
- A potential association between these exercises and aneurysmal SAH is discussed.
Implications:
- Weight training protocols, especially those involving the Valsalva maneuver, warrant careful consideration regarding cardiovascular risks.
- Individuals with intracranial aneurysms may need to modify or avoid certain weight training exercises.
- Further research is needed to fully understand the relationship between exercise-induced hypertension and aneurysm rupture.