title: Brachial artery blood flow during submaximal isometric contraction of the biceps brachii and triceps brachii in humans: a preliminary observation.
abstract: The purpose of this study was to evaluate brachial artery blood flow changes during submaximal isometric contraction of the biceps and triceps brachii, in order to clarify the influence of the upper arm muscles activity on the local arterial flow. The brachial artery blood flow velocity and diameter were evaluated in twenty healthy men (mean age 29.6 years) at baseline (resting position) and during submaximal isometric contraction of the biceps and triceps brachii by means of ultrasonography (B-MODE and Doppler ultrasound methods). The brachial artery blood flow velocity was significantly higher than resting position during submaximal isometric contraction of the biceps (P < 0.001) and triceps brachii (P = 0.019). As to the brachial artery diameter, no significant change was observed during submaximal isometric contractions of the biceps and triceps brachii. Our preliminary findings suggest that the brachial artery blood flow velocity similarly increases during submaximal isometric contraction of the biceps and triceps brachii.
authors.affiliation: Neuromotor and Cognitive Rehabilitation Research Centre, Department of Neurological, Neuropsychological, Morphological and Movement Sciences, University of Verona, P.le L.A. Scuro, 10, 37134 Verona, Italy.
authors.forename: Giulia
authors.initials: G
authors.lastname: Ledro
authors.forename: Andrea
authors.initials: A
authors.lastname: Turrina
authors.forename: Alessandro
authors.initials: A
authors.lastname: Picelli
authors.forename: Carla
authors.initials: C
authors.lastname: Stecco
authors.forename: Francesco
authors.initials: F
authors.lastname: Principe
authors.forename: Carlo
authors.initials: C
authors.lastname: Cacciatori
authors.forename: Nicola
authors.initials: N
authors.lastname: Smania
mesh_terms: D000328:Adult; D001132:Arm / Q000098:blood supply / Q000502:physiology; D001794:Blood Pressure / Q000502:physiology; D001916:Brachial Artery / Q000502:physiology*; D015444:Exercise / Q000502:physiology; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D007537:Isometric Contraction / Q000502:physiology*; D008297:Male; D018482:Muscle, Skeletal / Q000098:blood supply* / Q000502:physiology*; D010865:Pilot Projects; D012039:Regional Blood Flow / Q000502:physiology*