Instant Access to the Journals You Need

for just $40 per month.

Effect of Slow Abdominal Breathing Combined with Biofeedback on Blood Pressure and Heart Rate Variability in Prehypertension

Effect of Slow Abdominal Breathing Combined with Biofeedback on Blood Pressure and Heart Rate Variability in Prehypertension

Abstract

Objective: Prehypertension is a new category designated by the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC7) in 2003. Managing prehypertension with nonpharmacological intervention is possibly beneficial to the prevention of hypertension. In this study, we observed the effect of slow abdominal breathing combined with electromyographic (EMG) biofeedback training on blood pressure (BP) in prehypertensives and assessed the changes of heart rate variability (HRV) in order to find an optional intervention to prevent hypertension and acquire some experimental data to clarify the underlying neural mechanism. Methods: Twenty-two (22) postmenopausal women with prehypertension were randomly assigned to either the experiment group or the control group. The experiment group performed 10 sessions of slow abdominal breathing (six cycles/min) combined with frontal electromyographic (EMG) biofeedback training and daily home practice, while the control group only performed slow abdominal breathing and daily home practice. BP and HRV (including R–R interval and standard deviation of the normal–normal intervals SDNN) were measured. Results: Participants with prehypertension could lower their systolic blood pressure (SBP) 8.4 mm Hg ( p < 0.001) and diastolic blood pressure (DBP) 3.9 mm Hg ( p < 0.05) using slow abdominal breathing combined with EMG biofeedback. The slow abdominal breathing also significantly decreased the SBP 4.3 mm Hg ( p < 0.05), while it had no effect on the DBP ( p > 0.05). Repeated-measures analyses showed that the biofeedback group + abdominal respiratory group (AB+BF) training was more effective in lowering the BP than the slow breathing ( p < 0.05). Compared with the control group, the R–R interval increased significantly during the training in the AB+BF group ( p < 0.05). The SDNN increased remarkably in both groups during the training ( p < 0.05). Conclusions: Slow abdominal breathing combined with EMG biofeedback is an effective intervention to manage prehypertension. The possible mechanism is that slow abdominal breathing combined with EMG biofeedback could reduce sympathetic activity and meanwhile could enhance vagal activity.
Loading next page...
 
/lp/mary-ann-liebert/effect-of-slow-abdominal-breathing-combined-with-biofeedback-on-blood-KSBz7KZCDx

You're reading a free preview. Sign up for a free trial to continue reading.

By signing up, you agree to DeepDyve's Terms of Service and Privacy Policy.

What content is in DeepDyve?

  • Read and share from thousands of the leading scholarly journals from Springer, Elsevier, Nature, IEEE, Wiley-Blackwell and more.
  • All the latest content is available, no embargo periods.

Rent Scholarly Articles?

  • Read the full article in your browser.
  • Access all of your rentals from the cloud anywhere you have an internet connection.
  • Beautiful reading experience – Full charts and figures, just like the PDF.
  • Read as much as you'd like - whenever you'd like.

Happy Users

“In one word renting from DeepDyve is FANTASTIC!!! ... 99% of the time I only need access to an article for a month or so, so renting the articles is perfect for me.”

Adam S.

“Thanks for a great service! For an unaffiliated science blogger like myself this is like a dream come true.”

Seppo P.

“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”

Daniel C.

“Let me seize this opportunity and congratulate you on the service you are rendering to the scientific community.”

Joao B.