Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Electromyogr Kinesiol. 2007 Oct;17(5):556-67. Epub 2006 Sep 22.

Effects of abdominal stabilization maneuvers on the control of spine motion and stability against sudden trunk perturbations.

Author information

  • 1Area de Educación Física y Deportiva del Departamento de Arte, Humanidades y Ciencias Sociales y Jurídicas, Universidad Miguel Hernández de Elche, Avda. de la Universidad s/n., C.P. 03202, Elche, Alicante, Spain.

Abstract

Much discussion exists about which is the most effective technique to improve spine stability. The purpose of this study was to evaluate the effectiveness of abdominal bracing and abdominal hollowing maneuvers to control spine motion and stability against rapid perturbations. Eleven healthy males were posteriorly loaded in different experimental conditions: resting with no knowledge of the perturbation timing; performing each of the stabilization maneuvers at 10%, 15% and 20% of internal oblique maximum voluntary contraction with no knowledge of the perturbation timing; and naturally coactivating the trunk muscles when perturbation timing was known. An EMG biofeedback system was used to control the pattern and intensity of abdominal coactivation. The muscular preactivation of seven trunk muscles (bilaterally registered), the applied force, and the torso muscular and kinematic responses to loading were measured; and the spine stability and compression were modeled. The hollowing maneuver was not effective for reducing the kinematic response to sudden perturbation. On the contrary, the bracing maneuver fostered torso cocontraction, reduced lumbar displacement, and increased trunk stability, but at the cost of increasing spinal compression. When the timing of the perturbation was known, the participants were able to stabilize the trunk while imposing smaller spine compressive loads.

PMID:
16996278
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk