This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Exercise Training: Blood Pressure Response in Ambulatory Subject
Annotation ability available
Sector:
Language:
English
Abstract
The physiologic mechanisms involved in the human's adaptation to endurance exercise training result in the endurance exercise trained individual having high maximal oxygen uptakes (V̊O2max) and being more susceptible to orthostatic intolerance. In an attempt to delineate the primary blood pressure regulatory mechanisms affected by endurance exercise training, we compared high fit (HF), average fit (AF) and low fit (LF) subjects' reflex responses emanating from the low and high pressure baroreceptor baroreflexes during lower body negative pressure (LBNP) and selective stimulation of the carotid sinus baroreceptor using neck pressure (NP) and neck suction (NS). The data from these experiments indicate a reduction in the responsiveness of the high pressure baroreceptor reflex of the endurance trained individual and an altered interaction between the high pressure and low pressure baroreceptor reflexes. These alterations are detrimental during orthostatic stress.
Authors
Citation
Raven, P., "Exercise Training: Blood Pressure Response in Ambulatory Subject," SAE Technical Paper 911459, 1991, https://doi.org/10.4271/911459.Also In
References
- Luft, U.C. Myrhe L.G. Leoppky J.A. Venters M.D. “A study of factors affecting tolerance of gravitational stress simulated by lower body negative pressure” Lovelace Foundation Albuquerque, NM 1976 NASA-JSC contract NAS9-14472,2-60
- Myhre, L.G. Luft U.C. Venters M.D. “Responses of athletes and non-athletes to lower body negative pressure and acute dehydration” Med. Sci. Sports and Exerc. 8 53 54 1976
- Raven, P.B. Rohm-Young B. Blomqvist C.G. “Physical fitness and cardiovascular responses to lower body negative pressure” J.Appl. Physiol. 56 138 144 1984
- Raven, P.B. Smith M.L. “Physical fitness and its effect on factors affecting orthostatic tolerance” The Physiologist 27 S59 S61 1984
- Smith, M.L. Hudson D.L. Graitzer H.M. Raven P.B. “Blood pressure regulation during cardiac autonomic blockade: Effect of fitness” J. Appl. Physiol. 65 1789 1795 1988
- Pawelczyk, J.A. Stern S. Raven P.B. “Baroreflexes are less effective in endurance athletes” Med. Sci. Sports and Exerc. 21 S42 1989
- Pawelczyk, J.A. “Carotid baroreflex responsiveness and exercise training: Insights using rapid neck suction techniques” Med. Sci. Sports and Exerc . 1991
- Shi, X. R. Andresen J. Potts J.T. Foresman B. Raven P.B. “Diminished sensitivity of aortic baroreceptor - heart rate reflex in aerobically fit young men” The FASEB J. 1991
- Stevens, G.H.J. Foresman B.H. Stern S.A. Raven P.B. “I. Eight months of endurance training reduces orthostatic tolerance” J.Appl. Physiol. 1991
- Stevens, G.H.J. Foresman B.H. Shi X. Raven P.B. “II. Eight months of endurance exercise training alters blood pressure regulation during LBNP” J. Appl. Physiol. 1991
- Convertino, V.A. Montgomery L.D. Greenleaf J.E. “Cardiovascular responses during orthostasis: effect of an increase in V̊O 2max ” Aviat. Space Environ. Med. 55 702 708 1984
- Lightfoot, J.T. Clayton R.P. Torok D.J. Jorunell T. W. Fortney S.M. “Ten weeks of aerobic training do not affect lower body negative pressure responses” J. Appi. Physiol. 67 894 901 1989
- Greenleaf, J.E. Dunn E.R. Nesfig C. Harrison M.H. Geelen G. Kravik S.E. “Effect of longitudinal physical training and water immersion on orthostatic tolerance in men” Aviat. Space. American Med. 59 152 159 1988
- Rowell, L.B. Human Circulation: Regulation Purina Physical Stress Oxford University Press Oxford 1986 257 286
- Raven, P.B. Stevens G.H.J. “Endurance exercise training reduces orthostatic tolerance in humans.” The Physiologist 33 S56 S58 1990
- Raven, P.B. “An overview of the problem: Exercise training and orthostatic intolerance” Med, Sci. Sports and Exer. 1991