Muscle Power Assessment
Muscle Power Assessment - Related Videos
14:02
Ex Vivo Assessment of Contractility, Fatigability and Alternans in Isolated Skeletal Muscles
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Cited by 53 •
2012
We describe a method to directly measure muscle force, muscle power, contractile kinetics and fatigability of isolated skeletal muscles in an in vitro system using field stimulation. Valuable information on Ca2+ handling properties and contractile machinery of the muscle can be obtained using different stimulating protocols.
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).
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.
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.
02:08
Assessing Muscle Contraction with Neuromuscular Blocker Treatment
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2025
This video demonstrates assessing the muscle using cultured motor neurons, Schwann cells, and myotubes, followed by treatment with a neuromuscular blocker to inhibit contraction. Color-coded time-motion graphics show a color-coded time-motion graphic. Red indicates the fastest movement, and blue indicates the slowest.
FAQs
The measurement combines the mechanical output produced during a contraction with how quickly the associated movement occurs. A task that produces substantial force but moves slowly may differ from one that produces less force at higher velocity. Examining both variables helps distinguish aspects of neuromuscular capacity and functional performance that a force or strength value alone may not capture.
Torque describes rotational mechanical output, whereas force can be evaluated during tasks involving more direct loading or contact with a measurement surface. Dynamometers commonly support torque-based assessment, while force plates can capture force during controlled tasks. Selecting the measurement type to match the movement helps researchers characterize muscle performance and interpret interactions between people and engineered systems.
Comparisons depend on maintaining consistent contraction conditions, task demands, and measurement procedures. The selected instrument, movement, and way of recording force or torque and velocity can influence the resulting value. Standardized assessments improve comparisons across participants and interventions, making it easier to evaluate changes in rehabilitation, characterize impairment, or judge the performance of a prosthetic or orthotic device.
Dynamometers, force plates, and instrumented exercise systems measure performance in different task contexts. A dynamometer can support controlled assessment of force or torque, while a force plate records loading during a task, and an exercise system can measure output within a structured activity. The instrument should therefore be selected according to the movement and bioengineering question being studied.
A typical workflow begins by selecting a controlled contraction or functional task and an appropriate measurement system. The researcher then records the relevant force or torque together with movement velocity, producing a power measure for the task. Applying the same setup and conditions across sessions or participants supports meaningful evaluation of performance, intervention effects, or device behavior.
In rehabilitation, repeated measurements can help track recovery or changes associated with muscle impairment. In athletic settings, the results provide information about functional performance and neuromuscular capacity. Because the assessment captures how rapidly mechanical output is generated, it can reveal performance changes relevant to training or recovery that may not be fully represented by a general strength evaluation.
Measurements provide a quantitative basis for evaluating how a person performs while using a prosthetic or orthotic device. Researchers can compare mechanical output and movement behavior across device conditions, helping characterize human-machine interactions. The same information supports bioengineering decisions about technologies intended to restore or enhance physical function, while standardized tasks improve the fairness of those comparisons.
Standardized results allow researchers to compare interventions, describe differences in muscle impairment, and evaluate changes in functional performance. They also contribute to the design and testing of engineered systems by supplying measurable evidence about movement and human-machine interaction. In bioengineering studies, these outcomes connect muscle behavior with the performance of rehabilitation, prosthetic, and orthotic technologies.