Isokinetic Dynamometer
Isokinetic Dynamometer - Related Videos
07:44
Construction of Constant-Load (Isotonic) and Constant-Velocity (Isokinetic) Torque-Velocity-Power Profiles In vivo for the Rat Plantar Flexors
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2025
Here, we present a novel protocol to non-invasively measure the torque-angular velocity-power relationship in vivo in rat plantar flexors using transcutaneous muscle stimulation. This setup enables simple testing of isotonic muscle contractions on a force transducer/length controller system to better represent the constant-load nature of everyday movements.
07:22
Measuring the Motor Aspect of Cancer-Related Fatigue using a Handheld Dynamometer
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Cited by 2 •
2020
Simple and accessible methods were developed to measure the motor aspect of cancer-related fatigue objectively and quantitatively. We describe, in detail, ways to administer the physical fatigue test using a simple handgrip device as well as methods to calculate fatigue indices.
08:33
Induction and Assessment of Exertional Skeletal Muscle Damage in Humans
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Cited by 8 •
2016
This article describes a safe and reliable method to induce and quantify exertional skeletal muscle damage in human subjects.
08:40
Isokinetic Robotic Device to Improve Test-Retest and Inter-Rater Reliability for Stretch Reflex Measurements in Stroke Patients with Spasticity
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Cited by 4 •
2019
Using a robotic isokinetic device with electromyography (EMG) measurements, this protocol illustrates that isokinetic motion itself can improve inter-rater reliability for the angle of catch measurements in stroke patients with mild elbow flexor spasticity.
12:59
Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
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Cited by 6 •
2017
The effect of short-term resistance training on elderly people was investigated through the simultaneous use of several methods. Compared to a control group, many improvements were seen, including on muscle aerobic capacity, glucose tolerance, strength, power, and muscle quality (i.e., protein involved in cell signaling and muscle fiber type composition).
FAQs
Accommodating resistance adjusts the opposing load to match the force produced by the individual throughout the joint’s range of motion. This allows the test to capture performance under changing force output rather than relying on a single resistance value. The resulting measurements can reveal strength-related differences more objectively across the movement.
A preset angular velocity standardizes how quickly the joint moves during testing. Because the movement speed remains controlled, clinicians can compare performance between limbs or across repeated assessments under consistent conditions. This consistency supports objective evaluation of muscle performance and helps distinguish changes related to recovery from differences caused by testing conditions.
These measurements describe different aspects of muscle performance recorded during the assessment. Torque reflects the force produced, while work and power characterize performance across movement and output. Endurance addresses performance over the testing activity. Considering these measures together gives clinicians a broader picture than relying on a single strength value.
Clinicians can compare measurements between limbs and examine the recorded performance of the tested movement. Differences in torque, work, power, or endurance may indicate strength deficits or altered neuromuscular function. These comparisons provide objective information for evaluating impairment and identifying changes as a patient progresses through rehabilitation.
Standardized testing produces objective, reproducible measurements that can be collected at different points during care. Clinicians can use changes in recorded muscle performance to monitor recovery after injury or surgery and to evaluate treatment outcomes. The information also helps support individualized rehabilitation planning rather than relying only on general clinical impressions.
Clinical teams may use this instrument when they need quantitative information about muscle performance during rehabilitation. Its measurements can support evaluation of strength deficits, comparison of the limbs, assessment of neuromuscular function, and follow-up after injury or surgery. These applications make the results relevant to both treatment planning and outcome assessment.