Handheld Dynamometer
Handheld Dynamometer - Related Videos
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.
05:40
Handheld Device for Saliva Pretreatment to Improve Cortisol Detection
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2026
This protocol describes a rapid saliva pretreatment method for improving cortisol detection. A handheld filtration device is used to remove mucins and other interfering substances while preserving the target analyte. The pretreated saliva exhibits improved capillary flow, thereby enabling more consistent and reproducible assay performance.
12:03
Manual Construction of a Tissue Microarray using the Tape Method and a Handheld Microarrayer
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Cited by 5 •
2022
This protocol outlines the tape method on how to manually construct a tissue microarray using FFPE donor blocks of differing depths.
04:55
Handheld Metal Detector Screening for Metallic Foreign Body Ingestion in Children
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Cited by 5 •
2018
Here, we present a protocol to use the handheld metal detector, to screen for the presence of ingested metallic foreign bodies in children who present to the pediatric emergency medicine department with a history of foreign body ingestion.
06:27
Measurement of Aerosols Optical Thickness of the Atmosphere using the GLOBE Handheld Sun Photometer
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Cited by 4 •
2019
The goal of the methods presented here is to measure aerosol optical thickness of the atmosphere. The sun photometer is pointed at the sun and the largest voltage reading obtained on an in-built digital voltmeter is recorded. Atmospheric measurements such as barometric pressure and relative humidity are also performed.
FAQs
An isometric contraction keeps the tested muscle working without visible joint movement, allowing the device to capture force in a defined testing posture. The clinician’s stabilization helps direct the patient’s effort into the sensor rather than allowing compensatory movement. This makes the recorded value useful for objective strength comparisons.
Positioning and stabilization are not merely procedural details because they affect how much of the patient’s effort reaches the dynamometer. Keeping these elements consistent across repeated assessments improves measurement consistency. As a result, a change in recorded force is more likely to reflect altered strength or function rather than a different testing setup.
Manual muscle testing provides a clinical assessment of performance, whereas handheld dynamometry produces a numerical force value. Measurements can be recorded in newtons or kilograms of force, adding more precise and reproducible information to strength evaluation. This numerical approach is particularly useful when clinicians need to document change during assessment or follow-up.
The clinician first positions the patient’s limb and stabilizes it, then instructs the patient to produce a maximal isometric contraction against the device. An embedded force sensor records the applied force. Repeating trials with the same positioning and stabilization improves consistency and supports meaningful comparison between examinations.
Repeated trials create comparable force measurements that can be reviewed over time. Clinicians can use these data to monitor rehabilitation, evaluate weakness, and track recovery after injury or surgery. Because standardized testing improves consistency, serial results provide a clearer record of changing muscle strength and physical function than an isolated observation.
Handheld dynamometry can support assessment of weakness and physical function in patients with neuromuscular or musculoskeletal disorders. It is also relevant during rehabilitation and after injury or surgery, when clinicians need objective information about strength and recovery. The measurements help document outcomes and follow changes across the course of care.