Effects of mechanoceptive amplification on upper limb support in obstetric brachial palsy
DOI:
https://doi.org/10.28957/rcmfr.481Keywords:
Wearable electronic devices, proprioception, feedback, neurological rehabilitation, motor skillsAbstract
Introduction. artificial vibrations have demonstrated favorable sensorimotor effects; the objective of this study was to know the effect after applying mechanoceptive amplification (200Hz) on the support function on the upper extremity with perinatal neurological damage.
Methodology. the wereable prototype consists of a pressure sensor, vibrating motor and microprocessor that regulates dose; the participant is a girl with right obstetric brachial palsy; the intervention lasted 4 sessions, vibrations were applied during crawling in the second and third sessions; the average and maximum pressures recorded on the sensor were measured as body weight load variables, plus the total duration of the activity and the time ratio with feedback incorporated as temporal variables.
Results. at observational level the average pressure and the temporal ratio with feedback were greater in the sessions where vibrations were applied (94’16 and 86’95N versus 21’80 or 66’05N without vibrations); the total duration tended to increase with vibrations; the maximum pressure tended to increase as the series of sessions progressed.
Discussion. vibratory feedback has favored both the permanence on motor activity and the quantity and magnitude of body support performed on the stimulated limb. Implications: mechanoceptive amplification could favorpostural organization in perinatal neuromotor pathologies.
Conclusion. ecological vibratory feedback, through the osteoarticular system and simultaneous with body weight support, seems an adequate modality of perceptual feedback to optimize postural organization also in the upper extremity.
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