Adaptation of postural control to perturbations--a process that initiates long-term motor memory.
The objective was to investigate postural control adaptation during daily repeated posturography with vibratory calf stimulation. The posturography was performed with eyes open and closed daily for 5 days and after 90 days on 12 healthy subjects. The postural control adaptation could be described as two separate processes, a rapid adaptation during the test progress and a long-term habituation between consecutive test days. The adaptive improvements gained during the 5 days consecutive testing, largely remained 90 days later but seemed restricted to the same test situation. The findings suggest that balance rehabilitation should include a variety of repeated exercises, which are sufficiently long to induce habituation.
Tjernström
F
F
Department of Otorhinolaryngology, University Hospital of Lund, S-221 85, Lund, Sweden. fredrik.tjernstrom@skane.se
Fransson
P-A
PA
Hafström
A
A
Magnusson
M
M
D000222:Adaptation, Physiological / Q000502:physiology*; D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007866:Leg; D008297:Male; D009048:Motor Skills; D018482:Muscle, Skeletal / Q000502:physiology; D004856:Postural Balance / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D012044:Regression Analysis; D018709:Statistics, Nonparametric; D019415:Torque; D014732:Vibration