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Cardiac response induced by voluntary self-paced finger movement
G Florian1, A Stancák, G Pfurtscheller
1Ludwig Boltzmann-Institute of Medical Informatics and Neuroinformatics, Graz, Austria.
Summary
Voluntary finger movements influence heart rate, with slow movements causing deceleration and brisk movements causing initial deceleration followed by acceleration. Hand dominance did not affect these cardiac responses.
Area of Science:
- Cardiovascular physiology
- Neuroscience
Background:
- Voluntary movements can influence cardiac activity.
- Previous studies have not fully distinguished cardiac responses to movement from those related to respiration.
Purpose of the Study:
- To investigate cardiac responses to slow and brisk voluntary index finger movements.
- To differentiate the cardiac effects of movement from respiration.
- To examine the influence of hand dominance on movement-induced cardiac responses.
Main Methods:
- Investigated cardiac responses in 12 right-handed subjects during self-paced index finger movements.
- Utilized a novel method to separate cardiac effects of movement and respiration.
- Analyzed responses based on movement type (slow vs. brisk) and hand used (dominant vs. non-dominant).
Main Results:
- Slow movements elicited a monophasic cardiac deceleration.
- Brisk movements resulted in a biphasic response: initial deceleration followed by acceleration.
- Hand dominance did not significantly alter movement-induced cardiac responses.
Conclusions:
- Voluntary finger movements modulate cardiac chronotropism.
- Neocortical motor control areas impact brainstem cardiovascular centers.
- Vagal cardiac outflow is implicated in movement-related cardiac changes.