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Mutual nervous influences between breathing and precision finger movements
1Carl Ludwig Institute of Physiology, University of Leipzig, Germany. rasb@server3.medizin.uni-leipzig.de
European Journal of Applied Physiology
|April 25, 2000
Summary
Breathing influences finger movements, with flexions more affected than extensions. Finger flexions show greater precision variations with breathing phases compared to extensions.
Area of Science:
- Neuroscience
- Human Physiology
- Motor Control
Background:
- Breathing patterns affect fine motor skills.
- Previous research indicates respiratory modulation of short-term finger tracking movements (SFTM).
Purpose of the Study:
- To analyze the interplay between breathing and SFTM (flexions and extensions).
- To identify preferred breathing phase relationships for spontaneous finger movements.
Main Methods:
- Two experiments involving 15 volunteers performing tracking and spontaneous finger movements.
- Analysis of SFTM precision and timing relative to the respiratory cycle.
Main Results:
- SFTM are modulated by the respiratory cycle, more so for flexions than extensions.
- Finger flexion precision varied significantly with respiratory phase; extensions did not.
- Spontaneous finger flexions initiated near respiratory phase transitions; extensions began in early expiration.
Conclusions:
- Both spontaneous and tracking finger movements are influenced by breathing phases.
- Finger flexions exhibit a stronger association with respiratory rhythm than extensions.
- Optimal movement precision does not necessarily align with preferred spontaneous movement initiation phases.