Reactivity of ambulatory blood pressure to physical activity varies with time of day

Hypertension
Helen JonesJim Waterhouse

Abstract

Blood pressure (BP) fluctuates over a 24-hour period, but it is unclear to what extent this variation is governed completely by changes in physical activity. Our aim was to use a BP "reactivity index" to investigate whether the BP response to a given level of physical activity changes during a normal sleep-wake cycle. Hypertensive patients (n=440) underwent simultaneous 24-hour ambulatory BP, heart rate (HR), and activity monitoring. BP and HR were measured every 20 minutes. Actigraphy data were averaged over the 15 minutes that preceded a BP measurement. Individual BP and HR reactivity indices were calculated using least-squares regression for twelve 2-hour periods. These indices were then analyzed for time-of-day differences using a general linear model. Systolic BP and HR were generally more reactive to physical activity than diastolic BP. The highest reactivity of systolic BP (mean+/-SE=4+/-1 mm Hg per logged unit change in activity) was observed between 8:00 AM and 10:00 AM (P=0.014). Between 10:00 AM and 12:00 PM, BP reactivity then decreased (P=0.048) and showed a secondary rise in the early afternoon. These 24-hour changes in BP reactivity did not differ significantly between groups formed on the basis of early and late...Continue Reading

References

Apr 15, 1978·Lancet·M W Millar-CraigE B Raftery
Jun 1, 1992·American Journal of Hypertension·A F KhouryN M Kaplan
Jun 1, 1992·American Journal of Hypertension·J StaessenA Amery
Jan 1, 1980·Sleep·D J MullaneyS Messin
Feb 1, 1993·American Journal of Hypertension·D D GretlerM B Murphy
Jul 1, 1997·Chronobiology International·D ScorzoniC Longhini
Apr 17, 1998·American Journal of Hypertension·G A KerkhofA C Bobbert
Mar 17, 1999·JAMA : the Journal of the American Medical Association·A P BurkeR Virmani
Mar 25, 1999·American Journal of Hypertension·J E Muller
Jul 27, 1999·Archives of Internal Medicine·M BursztynJ Stessman
Oct 21, 2000·American Journal of Hypertension·A C LearyM B Murphy
Mar 15, 2001·Chronobiology International·H P Van DongenG A Kerkhof
Apr 23, 2002·Journal of Human Hypertension·J R MacDonald
May 16, 2002·Journal of Hypertension·John S Floras
Mar 19, 2003·Circulation·Norman M Kaplan
Sep 28, 2004·Journal of Applied Physiology·M J CarringtonJ Trinder

❮ Previous
Next ❯

Citations

Jun 21, 2008·European Journal of Applied Physiology·Helen JonesGreg Atkinson
Oct 15, 2009·European Journal of Applied Physiology·Greg AtkinsonPhilip N Ainslie
Apr 25, 2012·Current Hypertension Reports·Yuichiro Yano, Kazuomi Kario
Feb 10, 2012·Hypertension Research : Official Journal of the Japanese Society of Hypertension·Leandra G LimaNereida K C Lima
Jan 31, 2014·International Journal of Neural Systems·Ivan Osorio
Aug 15, 2009·Journal of Applied Physiology·R Daniel Rudic, David J Fulton
May 23, 2009·Medicine and Science in Sports and Exercise·Helen JonesGreg Atkinson
Dec 1, 2007·Hypertension Research : Official Journal of the Japanese Society of Hypertension·Kazuo Eguchi, Kazuomi Kario
Oct 31, 2008·Hypertension Research : Official Journal of the Japanese Society of Hypertension·Yuichiro Yano, Kazuomi Kario
May 24, 2008·Hypertension Research : Official Journal of the Japanese Society of Hypertension·Tomohito HayashiOsamu Tochikubo
Jul 19, 2013·European Journal of Applied Physiology·Greg AtkinsonHelen Jones
Sep 17, 2014·Journal of the American Society of Hypertension : JASH·Mustafa CaliskanHaldun Muderrisoglu
Oct 23, 2013·Chronobiology International·James S Dunn, Chloe E Taylor
Nov 14, 2008·Chronobiology International·Helen JonesGreg Atkinson
Oct 17, 2008·Clinical Journal of the American Society of Nephrology : CJASN·Rajiv Agarwal, Robert P Light
Jan 15, 2014·Behavior Therapy·Keisuke TakanoYoshihiko Tanno
Jun 9, 2015·Journal of Clinical Pharmacology·Jing WangQiang She
Sep 30, 2014·Journal of Strength and Conditioning Research·Annelise Lins MenêsesRaphael Mendes Ritti-Dias
Feb 3, 2009·Diabetes Research and Clinical Practice·Caroline Kaercher KramerJorge Luiz Gross
Oct 28, 2006·Physiology & Behavior·Greg Atkinson, Damien Davenne
Apr 4, 2007·The American Journal of Medicine·Barry J Materson
Jun 20, 2014·Scandinavian Journal of Medicine & Science in Sports·O K FaullS J E Lucas
Apr 1, 2015·Experimental Physiology·Greg Atkinson, Alan M Batterham
Apr 8, 2014·Journal of Physical Therapy Science·Yong Hyun KwonMyoung Hee Lee
Dec 7, 2011·Epilepsy & Behavior : E&B·I Osorio, S Schachter
Dec 9, 2014·The Journal of Clinical Investigation·Zhongwen XieMing Cui Gong
May 3, 2008·American Journal of Hypertension·Shih-Hsiang LoJung-Der Wang
Dec 16, 2016·PloS One·Takamasa KinoshitaYoshinori Mitamura
Jun 3, 2011·Hypertension·Chloe E TaylorYu-Chieh Tzeng
Jun 29, 2018·Journal of Cardiopulmonary Rehabilitation and Prevention·Danielle C Bentley, Scott G Thomas
Jun 2, 2018·The Journal of Clinical Investigation·Saurabh S ThosarSteven A Shea
Apr 24, 2019·Biology of Sex Differences·Sarah L WaltonKate M Denton

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.