motor point 이해를 위한 논문 - 임나라

[문형철]

물리치료 장비의 pad의 크기, 형태 등에 따른 전기자극

공부해보자

가장 중요한 치료의 핵심 요소는 actual motor point이다.

panic bird...

Effect of Electrode Size, Shape, and placement during elect.pdf

ABSTRACT

Objective: The effect of electrode size, shape, and placement during electrical stimulation of the biceps, quadriceps,

and tibialis anterior muscles were studied to assess what current is required during current-controlled electrical stimulation

(ESI) to reach a set muscle force, as well as to eval‎uate patient comfort.

 Methods: The electrodes used were round, square, and square with a serrated edge (with similar surface areas of 25.8 cm2); electrode sizes were 3.66 cm2, 4.39 cm2, and 5.08 cm2. Electrodes were placed at distances from the motor point of 2 cm and 4 cm proximal, distal, medial, and lateral, using a 3.66-cm2 pad. Associated subject comfort was recorded on a visual analogue pain scale (VAS) and assessed by heart rate, blood flow, galvanic skin resistance, and skin temperature.

 Results: Significant increases were found in ESI and VAS scores for placements away from the motor point, but there were no significant differences in ESI and VAS scores among the electrode size and shapes. Specifically, there was a statistically significant increase in ESI  and/or pain values when the electrode was moved medially (VAS = 7.1/3.0) and laterally on the biceps (2 cm ESI  = 32.7/14.5;VAS = 7.4/3.0), and distally (2 cm ESI  = 50.6/14.1;VAS = 7.9/0.4:4 cm VAS = 8.8/0.9) and medially on the quadriceps (2 cm ESI  = 53.7/12.1), and distally (2 cm ESI  = 21.4/9.5) and laterally (4 cm ESI  = 7.9/3.8;VAS = 5.4/3.6) on the TA. Autonomic functions showed no significant correlations with current requirements or VAS scores.

Conclusions: These data support the importance of determining the actual motor point before placement of the

stimulating electrode pad prior to the administration of ES, but refute the common concept that pad size and

shape have any meaningful relationship to tolerance of ES.