Summary
Nine subjects (five women and four men) simultaneously performed two isometric contractions sustained until exhaustion at different relative forces: 40% of maximum voluntary contraction (MVC) for the right elbow flexors; 50% MVC for the left elbow flexors. Contraction of the left elbow flexors commenced at 50% of the limit time (maximum maintenance time) of isometric contraction of the right elbow flexors. Increase in heart rate during concomitant contraction of the left elbow flexors led to an increase in blood flow to the right elbow flexors. Under these conditions, the limit time of isometric contraction of the right elbow flexors was prolonged with respect to the limit time obtained for an isolated isometric contraction at the same relative tension. The difference was more significant in the female (+40%,P<0.05) than in the male subjects (+20%,P>0.05).
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References
Barany M (1967) ATPase activity of myosin correlated with speed of muscle shortening. J Gen Physiol [Suppl] 50:197–216
Barany M, Conover TE, Schliselfeld LH, Gaetjens E, Goffart M (1967) Relation of properties if isolated myosin to those of intact muscles of cat and sloth. Eur J Biochem 2:156–164
Barnes WS (1980) The relationship between maximum isometric strength and intramuscular circulatory occlusion. Ergonomics 23:351–357
Burke RE, Edgerton VR (1975) Motor unit properties and selective involvement in movement. Exerc Sports Sci Rev 3:31–81
Elder GCB, Bradbury K, Roberts R (1982) Variability of fiber type distributions within human muscles. J Appl Physiol 53:1473–1480
Folkow B, Halicka H (1968) A comparison between red and white muscle with respect to blood supply, capillary surface area and oxygen uptake during rest and exercise. Microvasc Res 1:1–14
Hulten B, Thorstensson A, Sjodin B, Karlsson J (1975) Relationship between isometric endurance and fibre types in human leg muscles. Acta Physiol Scand 93:135–138
Humphreys PW, Lind AR (1963) The blood flow through active and inactive muscles of the forearm during sustained handgrip contractions. J Physiol [Lond] 166:120–135
Kahn JF, Monod H (1984) A study of fatigue during repetitive static work performed in two different segmental positions. Eur J Appl Physiol 53:169–174
Kahn JF, Stouvenel O, Monod H (1984) Réactions cardio-vasculaires à un travail statique réalisé dans deux positions chez l'homme et chez la femme. Trav Hum 47:307–316
Lind AR (1970) Cardiovascular responses to static exercise. Circulation 41:173–176
Lind AR, Mc Nicol GW (1967) Circulatory responses to sustained handgrip contractions performed during other exercise, both rhythmic and static. J Physiol [Lond] 192:595–687
Lind AR, Mc Nicol GW (1967) Local and central circulatory responses to sustained contractions and the effect of free or restricted arterial inflow on post-exercise hyperaemia. J Physiol [Lond] 192:575–593
Maughan RJ, Watson JS, Weir J (1983) Relationships between muscle strength and muscle cross-sectional area in male sprinters and endurance runners. Eur J Appl Physiol 50:309–318
Monod H (1956) Contribution à l'ètude du travail statique. Institut National de Sécurité, Paris
Monod H (1979) Un dispositif pour la mesure des forces musculaires chez l'homme. Trav Hum 43:213–214
Monod H, Scherrer J (1965) The work capacity of a synergic muscular group. Ergonomics 8:329–338
Petrofsky JS, Hendershot DM (1984) The interrelationship between blood pressure, intramuscular pressure, and isometric endurance in fast and slow twitch skeletal muscle in the cat. Eur J Appl Physiol 53:106–111
Petrofsky JS, Phillips CA, Lind AR (1981) The influence of fiber composition, recruitment order and muscle temperature on the pressor response to isometric contractions in skeletal muscle of the cat. Circ Res [Suppl 1] 48:32–36
Reinberg A (1979) Circadian and circannual rhythms in healthy adults. Nato-Agard, sleep, wakefulness and circadian rhythm, Paris. In: Agard-L.S. 105:1/15–1/27
Rogowsky M, Van der Putten M, Heyters C, Degre S (1978) Analyse de la contrainte musculaire dynamique et statique chez l'homme et chez la femme au cours d'un travail à faible dépense énergétique. Trav Hum 41:210–223
Rohmert W (1960) Ermittlung von Erholungspausen für statische Arbeit des Menschen. Int Z Angew Physiol Einschl Arbeitsphysiol 18:123–164
Rowell LB, Freund PR, Hobbs SF (1981) Cardiovascular responses to muscle ischemia in humans. Circ Res [Suppl 1] 48:37–47
Saltin B, Henriksson, J, Nygaard E, Andersen P (1977) Fiber types and metabolic potentials of skeletal muscles in sedentary man and endurance runners. Ann NY Acad Sci 301:3–29
Sawka MN, Petrofsky JS, Phillips CA (1981) Energy cost of submaximal isometric contractions in cat fast and slow twitch muscles. Pflügers Arch 390:164–168
Staunton HP, Taylor SH, Donald KW (1964) The effect of vascular occlusion on the pressor response to static muscular work. Clin Sci 27:283–291
Thorstensson A, Karlsson J (1976) Fatiguability and fibre composition of human skeletal muscle. Acta Physiol Scand 98:318–322
Tuttle W, Janney C, Thompson C (1950) Relation of maximum grip strength to grip strength endurance. J Appl Physiol 2:663–670
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Kahn, J.F., Kapitaniak, B., Huart, F. et al. Physiological modifications of local haemodynamic conditions during bilateral isometric contractions. Europ. J. Appl. Physiol. 54, 624–631 (1986). https://doi.org/10.1007/BF00943351
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DOI: https://doi.org/10.1007/BF00943351