The Effects of Jendrassik Maneuver on the T-reflex and the H-reflex of Soleus Muscle
Journal of the Korean Academy of Rehabilitation Medicine
;
: 993-999, 1999.
Artículo
en Coreano
| WPRIM
| ID: wpr-723650
ABSTRACT
OBJECTIVE:
To investigate the effects of Jendrassik maneuver on latency and amplitude of the T-reflex and H-reflex of the soleus muscle in normal adults.METHOD:
The T-reflex and H-reflex tests were performed on sixty normal adults with standardized technique using the soleus muscle. The shortest latency and the largest peak-to-peak amplitude were chosen for representative values.RESULTS:
The results were as follows 1) There was a significant difference in latency of the T-reflex between with and without Jendrassik maneuver. 2) The increment ratio of the amplitude with Jendrassik maneuver was 88% in the T-reflex and 18% in the H-reflex. There were a significant difference in the amplitude of both reflexes between with and without Jendrassik maneuver. 3) A high correlation was present between the latency of H- & T-reflex and the length.CONCLUSION:
According to these results, we suggest that Jendrassik maneuver primarily increases the sensitivity of muscle spindles and decreases the presynaptic inhibition of the Ia terminals at cortical, subcortical and spinal levels. Jendrassik maneuver can be a useful tool in cases of clinically decreased or absent deep tendon reflex.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Reflejo
/
Reflejo de Estiramiento
/
Husos Musculares
/
Músculo Esquelético
/
Reflejo H
Límite:
Adulto
/
Humanos
Idioma:
Coreano
Revista:
Journal of the Korean Academy of Rehabilitation Medicine
Año:
1999
Tipo del documento:
Artículo
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