Relation Between Blood Flow and Contraction Force in Active Skeletal Muscle

摘要: The relationships between blood flow and contraction force in intermittently contracting eat skeletal muscle during alterations of by various procedures were studied. When only to the active gastrocuemiussoleus was measured, mechanical reduction perfusion pressure, sympathetic chain stimulation intra-arterial norepinephrine epinephrine infusion found have esscritially identical effects producing proportionate that flow. whole leg musculature measured while either gastrocnemius-soleus or quadriceps active, varying results obtained with these which could be ascribed differenees response vessels resting muscles. During carotid sinus reflex some vasoconstrictor activity occurred muscle. On assumption maximal, is an index nutritional component flow, it may inferred that, general, those total restricted produced no alteration distribution non-nutritional within Blood generally unaffected concomitant hypothalamus vasodilator system. An increase occasionally observed whien at low levels, when a rise arterial pressure occurred. system produces distibution would seem play role maintenance performance normal A fundamental difference appears exist responses vasculature muscle; this related interplay specialized vasomotor innervations action metabolites.