Journal of Applied Physiology, Vol 54, Issue 2 434-437, Copyright © 1983 by American Physiological Society

ARTICLES

Increased cardiovascular response to static contraction of larger muscle groups

D. R. Seals, R. A. Washburn, P. G. Hanson, P. L. Painter and F. J. Nagle

The purpose of this study was to investigate the influence of the size of the active muscle mass on the cardiovascular response to static contraction. Twelve male subjects performed one-arm handgrip (HG), two-leg extension (LE), and a "dead-lift" maneuver (DL) in a randomly assigned order for 3 min at 30% of maximal voluntary contraction. O2 uptake (VO2), heart rate (HR), and mean intra-arterial blood pressure (MABP) were measured at rest and, in addition to absolute tension exerted, throughout contraction. There was a direct relationship between the size of the active muscle mass and the magnitude of the increases in VO2, HR, and MABP, even though all contractions were performed at the same relative intensity. Tension, VO2, HR, and MABP increased progressively from HG to LE to DL. It was concluded that at the same percentage of maximal voluntary contraction, the magnitude of the cardiovascular response to isometric exercise is directly influenced by the size of the contracting muscle mass.

This article has been cited by other articles:

				D. G. Edwards, C. R. Mastin, and R. W. Kenefick Wave reflection and central aortic pressure are increased in response to static and dynamic muscle contraction at comparable workloads J Appl Physiol, February 1, 2008; 104(2): 439 - 445. [Abstract] [Full Text] [PDF]

				I. C. Trombetta, L. T. Batalha, M. U. P. B. Rondon, M. C. Laterza, E. Frazzatto, M. J. N. N. Alves, A. C. Santos, P. C. Brum, A. C. P. Barretto, A. Halpern, et al. Gly16 + Glu27 {beta}2-adrenoceptor polymorphisms cause increased forearm blood flow responses to mental stress and handgrip in humans J Appl Physiol, March 1, 2005; 98(3): 787 - 794. [Abstract] [Full Text] [PDF]

				J. P Fisher and M. J White Muscle afferent contributions to the cardiovascular response to isometric exercise Exp Physiol, November 1, 2004; 89(6): 639 - 646. [Abstract] [Full Text] [PDF]

				A. R. Saad, D. P. Stephens, L. A. T. Bennett, N. Charkoudian, W. A. Kosiba, and J. M. Johnson Influence of isometric exercise on blood flow and sweating in glabrous and nonglabrous human skin J Appl Physiol, December 1, 2001; 91(6): 2487 - 2492. [Abstract] [Full Text] [PDF]

				T. J. Overend, T. H. Versteegh, E. Thompson, T. B. Birmingham, and A. A. Vandervoort Cardiovascular Stress Associated With Concentric and Eccentric Isokinetic Exercise in Young and Older Adults J. Gerontol. A Biol. Sci. Med. Sci., April 1, 2000; 55(4): 177B - 182. [Abstract] [Full Text]

				J. M. Galvez, J. P. Alonso, L. A. Sangrador, and G. Navarro Effect of muscle mass and intensity of isometric contraction on heart rate J Appl Physiol, February 1, 2000; 88(2): 487 - 492. [Abstract] [Full Text] [PDF]

				F. Iellamo, M. Massaro, G. Raimondi, G. Peruzzi, and J. M. Legramante Role of muscular factors in cardiorespiratory responses to static exercise: contribution of reflex mechanisms J Appl Physiol, January 1, 1999; 86(1): 174 - 180. [Abstract] [Full Text] [PDF]

				G. F. Fletcher, G. Balady, V. F. Froelicher, L. H. Hartley, W. L. Haskell, and M. L. Pollock Exercise Standards : A Statement for Healthcare Professionals From the American Heart Association Circulation, January 15, 1995; 91(2): 580 - 615. [Full Text]