The incidence of arrhythmias during isometric sustained handgrip exercise and during dynamic graded bicycle exercise was compared in a group of 45 patients with various forms of heart disease on no antiarrhythmic therapy. Atrial arrhythmias were equally common during handgrip and bicycle exercise but ventricular arrhythmias were more frequent during handgrip exercise. Of the 45 patients, 38 per...

Hemodynamic predictors of myocardial oxygen consumption (MVO2) during static and dynamic exercise were examined in ten normal subjects. Studies were done under the following circumstances: 1) during upright bicycle exercise at an average heart rate of 147 beats/min, 2) during static exercise with an isometric load in the left hand equal to 17% of the maximal voluntary contraction (MVC), and 3) ...

The purpose of this study is to examine the cardiovascular and metabolic responses between dynamic and static exercise when a leg press exercise is performed. Seven participants (20-21 yrs) were recruited for the experiment. Four modes of dynamic or static leg press exercise were assigned in two combined conditions: a unilateral or a bilateral condition and two exercise intensities with 20% and...

[Purpose] The primary aim of this study was to determine the effect of shoulder flexion angle and exercise resistance on the serratus anterior muscle during dynamic hug exercise. [Subjects] Ten men aged 22-32 years were recruited. [Methods] The subjects performed dynamic hug exercise at different shoulder flexion angles and under resistance weight conditions. Serratus anterior muscle activities...

To evaluate the difference in the response of DT in the early phase of static (sustained weight load) and dynamic (treadmill) exercise, the relation of DT and HR was studied by ear densitography in 11 patients with myocardial infarction. None of the patients had an ischemic electrocardiographic response during exercise. Despite an increase in HR and the pressure-HR product with both types of ex...