The effect of high velocity thrust technique applied to the fourth cervical vertebra (C4) bilaterally on the forced expiratory value in one second (FEV1) and forced vital capacity (FVC).
Item
- Title
- The effect of high velocity thrust technique applied to the fourth cervical vertebra (C4) bilaterally on the forced expiratory value in one second (FEV1) and forced vital capacity (FVC).
- Author(s)
- Sheehan, C
- Abstract
- High Velocity Thrust (HVT) technique is a common treatment modality used in the osteopathic profession. The technique is generally applied to one or more vertebral segments, with an aim to have a local soft tissue effect. Objectives: The purpose of this undergraduate research study was aimed at establishing whether HVT applied to the 4I1' cervical segment (C4) bilaterally had an effect Forced Expiratory Volume in one second (FEV I ) and Forced Vital Capacity (FVC) in healthy subjects. The proposedmechanism was that HVT to C4 would affect the diaphragm via the phrenic nerve (C3/4/5). The results were compared with the results of a second undergraduate study, Thompson (2010). The second study was aimed at establishing whether MET applied to the scalene muscles had an effect on FEVI and FVC.Methods:The study was a randomised controlled single-blind experimental design. It involved fortyhealthy participants from the European School of Osteopathy (ESO). Twenty subjects were part of the active group and twenty participated in the control Igroup. All subjects' FEV I and FVC were measured using a spirometer. A HVT was applied to C4 bilaterally to the active group, as the subject lay in a supine position. The control group lay supine for five minutes. All subjects` FEVI and FVC were measured again following intervention. Results: The results show a significant difference after HVT in FEV I . There was no significant difference in the FEVI or FVC after the MET or CONTROL interventions. There was a significant difference in the effects on FEVI and FVC between MET and HVT groups and MET and CONTROL groups, MET being the stronger intervention. The descriptive results show substantial increases in FEVI and FVC following HVT and MET. Discussion: The results mean that HVT applied to the C4 was found to significantly increase FEVI but had no increase on FVC. Lying supine for t`ive minutes or receiving MET to the scalene muscles had no significant effect on FEV I or FVC ..Ghe descriptive results illustrate that MET and FVC were beginning to make a change to the FEVl and FVC values and so the techniques did have a positive overall effect. Had more spirometer measurements been taken at later intervals (as in Hilton et al 1997;1999), it would have been possible to ascertain the direction in which these changes proceded to take. Conclusion: Based ol1 the present study, it was concluded that a HVT to C4 increases FEV I , and that as a technique it may affect the diaphragm. The other main conclusion drawn was that further study was needed. This was due to the non-parametric nature of the Wilcoxon test, which may have weakened the result. Overall, there was an inexact explanation of precisely which mechanism increased the FEVI and FVC, since neither the diaphragm or the scalenes are absolute measures of either. It was also advised that a larger sample size to include subjects with no previous knowledge be applied.
- presented at
- European School of Osteopathy
- Date Accepted
- 2011
- Date Submitted
- 22.1.2013 16:23:36
- Type
- osteo_thesis
- Language
- English
- Submitted by:
- 62
- Pub-Identifier
- 15299
- Inst-Identifier
- 1229
- Keywords
- HVT; FEV1; FVC; Pulmonary function.
- Recommended
- 0
- Item sets
- Thesis
Sheehan, C, “The effect of high velocity thrust technique applied to the fourth cervical vertebra (C4) bilaterally on the forced expiratory value in one second (FEV1) and forced vital capacity (FVC).”, Osteopathic Research Web, accessed May 17, 2024, https://www.osteopathicresearch.com/s/orw/item/766