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Showing 1 to 20 of 27 for “"Isometric exercise"”.
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Isometric Exercise Versus Isotonic Exercise as a Means of Building and Retaining Strength
… to compare results from the selected isotonic exercises as recommended by Steinhaus, the selected isometric exercises as recommended by Karpovich, and a non-directed exercise program on the seventh and eighth grade male students of Monroe Junior High School as a means of building and retaining …
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Age differences on the pattern of blood pressure response to isometric exercise in normotensive males.
… pattern of blood pressure (pressor) response to isometric handgrip contractions between older and younger males with and without blood occlusion. Ten older males (mean age 54.7 +/- 3.0 yrs) and ten younger males (mean age 26.6 +/- 1.9 yrs) normotensive at rest and dynamic exercise participated in …
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The effects of muscle mechanoreflex stimulation via passive muscle stretch on baroreflex function in humans
Human cardiovascular control during exercise is regulated by central command, muscle mechanoreflex stimulation and muscle metaboreflex activation. The muscle mechanoreflex can be stimulated by passive muscle stretch, which causes cardiovascular responses. However, the influence of passive …
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The Effect of Exercise on Mechanical Pressure Pain Threshold in the Presence and Absence of Delayed-Onset Muscle Soreness
… during and following maximal and sub-maximal isometric exercise (Koltyn, 2002). Research on fibromyalgia patients however has shown the same exercises increase pain sensitivity (hyperalgesia) (Staud, Robinson, & Price, 2005; Kosek, Ekholm, & Hansson, 1996). The purpose of the present study was …
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Toward the Optimal Waveform for Electrical Stimulation
… four minute bouts of electrically stimulated isometric contractions equal to 10% of the maximal voluntary contraction (MVC) of their right quadriceps muscle to study subjective comfort and physiological responses to different waveforms, including Russian, interferential, sine, and square. …
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Acute arterial responses to physiological and psychological stress
… elevation of sympathetic outflow following isometric exercise, indices of conduit and central artery function indicated stiffening in excess of 10%. During and following acute mental stress the large arteries exhibited a similar stiffening response, despite decreased resistance in the …
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The effects of prostaglandin inhibition on the sympathetic and pressor responses to muscular contraction and postcontraction muscle ischemia
… on the sympathetic and pressor responses to isometric handgrip (HG) at 40% of maximal voluntary contraction (MVC) to exhaustion and postcontraction muscle ischemia (PC). To accomplish this heart rate (HR), arterial pressure (n=10) and plasma norepinephrine (NE) levels (n=8) were measured in …
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A familiarization protocol: Repetitions in reserve
1 PDF file (xi, 91 pages)
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Posture and sports performance
… the second study, we evaluated the impact of an isometric exercise treatment with grips designed to put the human skeleton in a "more advantageous position" (e3 Swing Grips, BioGrip, Sacramento, CA) on bat speed. We observed that the grip exercise treatment significantly (F(2,44)=7.6, p<.001) …
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Hemodynamic Responses to Isometric Contractions of the Finger Flexor and Leg Extensor Muscle Groups in Men 18-30 and 50-70 Years of Age
… years of age were assessed while performing isometric hand-grip and isometric leg extension tests. The object was to ascertain which cardiovascular variables(s), heart rate, stroke volume, cardiac output, total peripheral resistance, systolic blood pressure, diastolic blood pressure, pulse …
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The reliability of an isometric test based on constant perception of effort
… procedure to extrapolate findings of an isometric nature to a whole body performance setting. The purpose of this study was to quantify the reliability of perceived exertion to control neuromuscular output during an isometric contraction. 21 varsity athletes completed a maximal voluntary …
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Training distribution and the acquisition of maximal isometric elbow flexion strength
… The massed group (n=13) completed 15 maximal isometric elbow flexion strength trials in one session, while the distributed group (n=13) performed five such contractions on three successive days. After a two-week and three month rest interval, both groups returned to perfonn another five …
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The value of isometric and stretch exercises in the management of mechanical lower back pain
A dissertation submitted in partial compliance with the requirements for the Master's Diploma in Technikon: Chiropractic, Technikon Natal, Durban, South Africa, 1998.
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Recoverability of large vs small muscle groups
1 PDF (viii, 74 pages)
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The effects of a heavy resistance training intervention of the plantar flexors on the recovery of strength, power, acceleration, and agility in recreational athletes
Resistance training is a highly utilised form of exercise that is used to develop strength, power, speed and muscular endurance. Although it is associated with many positive benefits it also has some potentially unfavourable effects. These are manifested in the form of altered muscle function …
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Psychological wellness in athletes who engage in aerobic and resistance training : a comparative study
… psychological wellness between individuals who exercise and those individuals that a sedentary. Secondly, this study aspires to determine whether there is a difference in psychological wellness between individuals who engage in different forms of physical activity. This study motivated by the …
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The effects of a supplementary high intensity muscle endurance resistance training programme on Comrades Marathon performance
In this study, the aim was to determine the effects of a high intensity muscle endurance resistance intervention programme as a supplement to normal running training for Comrades Marathoners. A sample voluntary population of 115 subjects were initially distributed at random into two groups of …
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Comparison of strength gains over 13 and 26-weeks of resistance training in children
… gains in both the chest press and seated row exercises while grade 9 subjects showed significant gains across the 6RM seated row, chest press, and leg press measures.
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The effect of resistance training interventions in overweight and obese children
Childhood and adolescent obesity is a significant problem in Australia and it has reached alarming levels. While most studies have suggested that increased levels of physical activity, combined with improved nutrition can improve body composition and health of children who are obese or overweight, …
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