[Effect of surgical positioning and spinal anesthesia on lung function].

Background: Various surgical positions, e.g., lithotomy, prone, or head-down positions influence respiratory mechanics.

Phase-dependence of breathing and finger tracking movements during normocapnia and hypercapnia.

The coordination between breathing and other motor activities usually implies that the respiratory rhythm has become entrained by the rhythm of the simultaneous movement. Our hypothesis was that by increasing the respiratory drive, e.g.

Coordination Between Breathing and Finger Tracking in Man.

Arm and leg movements are known to produce temporal pattern changes of breathing. This can be interpreted as coordination, as defined by von Holst (1939). The aim of the present study was to find whether breathing exerts an influence in a reverse direction on a nonrespiratory movement as well.