Circulatory responses to sustained hand-grip contractions performed during other exercise, both rhythmic and static
نویسندگان
چکیده
منابع مشابه
Forearm blood flow during and after isometric hand-grip contractions.
1. A method is described for the measurement of forearm blood flow during sustained voluntary isometric hand-grip contractions that can be maintained constant by the subject’s monitoring of the strength of his contractions. 2. In most subjects it was found that contractions of 5% of their maximal voluntary force could be maintained without fatigue, and without any post-exercise increase in bloo...
متن کاملPredicting blood flow responses to rhythmic handgrip exercise from one second isometric contractions.
The aim of this work was to predict blood flow responses to rhythmic handgrip exercise from one second isometric contractions. Seven healthy men were studied. Each subject performed a single 1 s handgrip contraction at 10 %, 20 % and 40 % of the maximum handgrip strength. We then repeatedly summed hyperaemic responses from single contractions to predict hyperaemic response to a prolonged bout o...
متن کاملHuman Grip Responses to Perturbations of Objects During Precision Grip
Grasp stability of a precision grip requires fine control of three-dimensional fingertip forces. This chapter begins with a review of the literature on how precision grip forces are affected by intrinsic object properties, anticipation, load direction, and sensory feedback. Previous studies have established that reactive, initial increases in grip forces (pulse-like ‘‘catch-up responses’’ in gr...
متن کاملSynergist coactivation and substitution pattern of the human masseter and temporalis muscles during sustained static contractions.
OBJECTIVE Previous reports indicated that between-muscle substitution of active motor unit pools can be found in a variety of synergist muscles, including shoulder and leg muscles, but little information is available for the masticatory muscles. We hypothesized that, during a prolonged clenching effort performed at low- to moderate-bite force levels, a substitution pattern of activity can be fo...
متن کاملCardiovascular responses to static exercise. (Isometrics, anyone?).
ANYONE with a stethoscope, a sphyg-momanometer, and an open mind can readily satisfy himself that static effort or "isometrics" may raise the blood pressure to high levels. Yet, isometrics, as a form of exercise intended as a means of attaining physical fitness, has been urged on the population at large. A recognition of the fact that the obese, the infirm, and the aged are unlikely to commence...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1967
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1967.sp008319