The effect of thoracic HVT technique on transversus abdominis endurance
Item
- Title
- The effect of thoracic HVT technique on transversus abdominis endurance
- Author(s)
- Shaw Jonathan
- Abstract
-
Objectives
To investigate the effect of thoracic High velocity low amplitude thrust (HVT) on Transversus abdominis (TrA) endurance, in conjunction with two "supine tests" as measured by the Pressure bio feedback unit (PBU).
Summary of background information
In recent years research has indicated that TrA has a stabilising effect on the lumbar spine. It has also been observed that TrA becomes inhibited in those with a history of low back pain. Such inhibition is arguably related to spinal reflex arcs in which spinal cord facilitation is responsible for the maintenance of a dysfunctional state. The beneficial effects of spinal HVT techniques are believed to be based on a neural physiological mechanism which reduces central sensitisation and thereby corrects aberrant efferent activity. To date the researcher has found no research on the effect of HVT techniques on TrA function.
Study design
A controlled randomised study of TrA function following a thoracic HVT or a "sham manipulation," as measured by the PBU. All measurements were taken manually and exclusion criteria were kept to a minimum in order to maximise clinical applicability.
Methodology
Thirty-two subjects were chosen from the second, third and fourth year of study at the British College of Osteopathic Medicine. Pressure biofeedback quantification of a TrA contraction was undertaken, with the subjects performing two supine TrA tests pre and post intervention.
Results
Readings analysed using a matched paired t-test found a statistically significant increase (p<0.05) in TrA endurance following HVT. However, using a two-sample t-test, no statistically significant difference (p>0.05) was found in the magnitude of contraction time improvement between the two groups. All results relate to the second exercise.
Conclusion
HVT technique on the lower thoracic spine does not have a statistically significant effect on TrA endurance as measured by the PBU, in conjunction with one supine test. As subjects were largely asymptomatic it is possible that TrA inhibition was not initially present and therefore intervention had little effect. The researcher feels that various experimental design faults mean that it is inappropriate to draw firm conclusions from the results of this study. - presented at
- British College of Osteopathic Medicine
- Date Accepted
- 0
- Date Submitted
- 1.1.1970 00:00:00
- Type
- osteo_thesis
- Language
- English
- Submitted by:
- 62
- Pub-Identifier
- 13603
- Inst-Identifier
- 1076
- Recommended
- 0
- Item sets
- Thesis
Shaw Jonathan, “The effect of thoracic HVT technique on transversus abdominis endurance”, Osteopathic Research Web, accessed May 4, 2025, https://www.osteopathicresearch.org/s/orw/item/1154