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Showing 1 to 20 of 146 for “"isokinetic"”.
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Muscle performance during slow isokinetic speeds
The purpose of this study was to investigate the possible mechanism responsible for the decrease in force during the 5°/sec velocity compared to the isometric velocity. Subjects (n = 9) completed MVC knee extension exercises during eccentric speeds of 5, 10, and 15°/sec, as well as isometric …
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Isokinetic Knee Strength in Females with Fibromyalgia
… with FM and thirty-one healthy females completed isokinetic testing of knee flexors and extensors of their dominant leg using a Cybex Norm Isokinetic Dynamometer. Two knee muscle groups (flexors and extensors) at two angular velocities (607sec and 1807sec) were tested for both groups. Both muscle …
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A metabolic comparison of isokinetic and free sprinting
… following exhaustive treadmill running, maximal isokinetic and free sprinting. Eight university sprinters (mean: age = 24.8 yrs., ht. = 178.9 cm., wt. = 74.9 kg.) performed a 2 minute anaerobic speed test (AST) and tethered isokinetic and free sprinting protocols consisting of five second maximal …
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Mechanisms affecting post-activation potentiation following voluntary isokinetic knee extension
… before and after five different dynamic (isokinetic) CAs, after the participants had completed an extensive warm-up including extensive task-specific practice to the point where maximal voluntary contractile capacity was achieved. Vastus lateralis (VL) EMG amplitude normalised to the …
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The isokinetic assessment of muscle strength in rugby union players.
… the upper body strength of rugby union players. Isokinetic assessment of shoulder abduction and adduction strength was identified as providing a sport specific measurement based on the muscle actions involved in the rugby tackle.A pilot study was conducted to assess the reliability of the …
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Estimation of internal consistency and stability reliability using isokinetic segmental curve analysis
… (SCA). Each subject performed a standardized isokinetic knee extension/flexion test on the Cybex II isokinetic dynamometer. Test protocol consisted of 5 maximum repetitions at a speed of 60 deg/sec. Within one week of the initial test, each subject performed a retest. During testing, all …
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The effects of ballet training on isokinetic strength, power, and muscular endurance
… of the same age. Each group was tested for isokinetic strength, power, and muscular endurance on the Cybex 11+ before and after the eight week training program of ballet and weight training. Each subject in the two experimental groups attended at least three ballet technique classes a week. …
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Peak isokinetic torque of knee flexors and extensor muscles of college football players
… if there was a significant difference in peak isokinetic torque of knee flexor and extensor muscles across speeds (60 degrees/second, 180 degrees/ second and 300 degrees/second) of a college football team subsequent to participation in a spring football season.</p>
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An Optimal Interset Rest Period For Strength Recovery During A Common Isokinetic Test
<p>Introduction: Isokinetic testing is used in rehabilitation settings on a regular basis, yet there is a lack of consistency in rest period usage among protocols. Purpose: The purpose of this study was to establish an optimal rest period that would allow reproducibility of strength during a common …
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The effects of velocity specific isokinetic training on strength, hypertrophy, and cross education
… the effects of six weeks of velocity specific isokinetic training on peak torque (PT), and the estimated cross-sectional area of the upper arm (AG) in the trained. Thirty volunteers (M=15, F=15) were randomly assigned to an experimental, slow velocity group (S), 60 degrees-per-second (n=9; …
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Effect of isokinetic resistance training on ulnar stiffness in young, college-aged women
… either concentrically or eccentrically in the Isokinetic modality on the Biodex® system III 3d/wk for 32 wks. The dominant arm served as the control limb (untrained). Analysis of all subjects regardless of training mode demonstrated a significant increase in ulnar EI (22% ↑, P=0.01) with no …
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Discrimination between sincere and deceptive isokinetic knee extension response using segmental curve analysis
… to discriminate between sincere and deceptive isokinetic knee extension tests, whether these equations could be applied to a new sample, and whether prediction accuracy is dependent on test speed. Fisher [1989] trained 76 college-age males subjects to either give a true maximal response or fake …
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Maximal Versus Non Maximal Muscular Exertions: A Study of Valid Measures Using Isokinetic Dynamometry
… the knee and shoulder joint musculature during isokinetic dynamometry-based testing. For development of the decision rules, healthy participants performed a series of maximal and non-maximal exertions at different testing velocities through a prescribed range of motion. Two different …
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Influence of Oral Contraceptives on Bone Adaptations to Isokinetic Strength Training in Young Women
… (EI) in college-aged females after unilateral isokinetic resistance training. METHODS: Forty six females (age 20 +/- 1.4 yr, height 163.8 +/- 6.2cm, weight 58.9 +/- 8.6kg, fat 27.9 +/- 4.8%) were categorized as OC users (OC, N=22) or non-users (NOC, N=24). Subjects participated in 32 weeks (3 …
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Isokinetic muscular strength and performance in youth football : relationships with age, seasonal variation and injury
… of the current project was to investigate the isokinetic muscular strength and performance of elite male youth footballers, and the relationships with age, seasonal variation and injury. A secondary aim was to use the information gathered to target muscle strain injury prevention strategies to …
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Establishing isokinetic flow for a plasma torch exhaust gas diagnostic for a plasma hearth furnace
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1996, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Comparisons of countermovement jump and isokinetic performance in youth athletes: maturation and early sport specialization considerations
… 1 investigated the test – retest reliability of isokinetic knee flexion and extension, countermovement jump (CMJ)performance and muscle architecture in adolescents. Eight ultrasound variables, nine CMJ variables and six isokinetic variables were found to be reliable among this subject group and …
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The effects of isometric, isotonic, and isokinetic training programs upon push-up achievement in high school boys
Thesis (M.S.)--Michigan State University. Dept. of Health, Physical Education and Recreation, 1972
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The Effects of Wearing Prophylatic Knee Sleeves/Braces on Selected Isokinetic Measures During a Velocity Spectrum Knee Extension Test
… prophylatic knee sleeves/ braces on selected isokinetic measures (i.e. strength, power and endurance). Each subject performed the Biodex (Multi-Joint System 2AP) knee extension test in each of three experimental conditions: sleeved with the Don Joy Knee support (S-DJ); braced with the McDavid …
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