The effect of HVT on the navicular on the power output and pain pressure threshold of the triceps surae muscles.

Item

Title
The effect of HVT on the navicular on the power output and pain pressure threshold of the triceps surae muscles.
Author(s)
Palmer, M
Abstract
Objective The purpose of this study was to investigate if HVT of the navicular has an effect on the power output or PPT of the triceps surae muscles. Design A randomized, controlled, independent measures experiment. Methods Participants were divided into two groups; the manipulation or control group. The participants of both groups underwent baseline testing for their power output and PPT of triceps surae. The manipulation group then received a HVT of the navicular on their dominant leg, while participants in the control group lay down for five minutes. Participants then underwent post intervention testing Pearson chi-squared was performed to assess equal distribution of leg dominance and gender. Shapiro-Wilks and Fisher-F test were performed to assess normal distribution and equal variance. One-way ANOVA was then used to compare pre and post intervention testing Result No statistically significant differences were seen between pre and post manipulation for both power output and PPT of the manipulation group (n=17) when comparing against the control group (n=15) (p=0.86 and p=0.98 mrespectively). There was also no statistically significant change when comparing the control versus manipulation with an audible pop for both power output (p=0.49) and PPT (p=0.74). Discussion Navicular manipulation did not improve either power output or PPT of triceps surae. A statistically significant change has only been seen with spinal manipulation. This significance has been seenwhen assessing both local and more global structures although not all research agrees and thus further research still needs to be done into both the effects of spinal and peripheral manipulation. Limitations of this study included the use of participants without a specific navicular lesion and using only an adjustment in a posterior direction. The same size was also small consisting only of participants who were not na‘I.ve to osteopathic treatment. Conclusion From this current research it can be concluded that peripheral manipulation of the navicular in non-symptomatic participants does not increase power output or pain-pressure threshold of triceps surae These findings are not altered by the presence of an audible pop. Trial results would be further strengthened by additional research using a larger population sample, participants with a specific navicular dysfunction, blinding the study and by using a more accurate method of power output data gathering.
presented at
European School of Osteopathy
Date Accepted
2016
Date Submitted
2.12.2016 17:29:04
Type
osteo_thesis
Language
English
Submitted by:
62
Pub-Identifier
15953
Inst-Identifier
1229
Keywords
High velocity thrust, Power output, Pain pressure threshold, Osteopathic manipulation.
Recommended
0
Item sets
Thesis

Palmer, M, “The effect of HVT on the navicular on the power output and pain pressure threshold of the triceps surae muscles.”, Osteopathic Research Web, accessed May 4, 2025, https://www.osteopathicresearch.org/s/orw/item/528