The Effect of the Base of Support on Anticipatory Postural Adjustment and Postural Stability
Journal of Korean Physical Therapy
;
(6): 135-141, 2017.
Artigo
em Inglês
| WPRIM
| ID: wpr-647865
ABSTRACT
PURPOSE:
This study was to identify the anticipatory postural adjustment (APA) mechanism which is represented by the onset time of trunk muscles and the displacement of the center of pressure (COP) according to the different base of support (BOS) during upper extremity movement.METHODS:
Thirty healthy subjects (14 males, 16 females) participated in this study. The movement was performed for 10 trials during each of various BOS (shoulder - width double leg stance, narrow base double leg stance, tandem stance, non-dominant single leg stance) at the 1.2 Hz frequency. Electromyography was used to measure muscle onset time and biorescue was used to measure characteristics of the displacement of COP. Surface bipolar electrodes were applied over the right deltoid anterior, right latissimus dorsi, both rectus abdominis, both internal oblique and both erector spinae. The data were analyzed by repeated one-way ANOVA and Duncan's post hoc test.RESULTS:
The study has revealed following. There were significant differences with muscle onset time in each BOS (p<0.01). There were significant differences in characteristics of the COP in each BOS (p<0.01).CONCLUSION:
The study found that the more narrowed the basis requires the more rapid anticipatory postural control in contralateral postural muscle when the upper extremity movement is performed.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Reto do Abdome
/
Extremidade Superior
/
Eletrodos
/
Eletromiografia
/
Músculos Superficiais do Dorso
/
Voluntários Saudáveis
/
Perna (Membro)
/
Músculos
Tipo de estudo:
Estudo prognóstico
Limite:
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Journal of Korean Physical Therapy
Ano de publicação:
2017
Tipo de documento:
Artigo
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