Development of a Dynamometer to Measure Grip Strength of Each Finger

Makino, Koji; Sato, Nobutaka; Fujita, Koji; Kanagawa, Takaiki; Miyamamoto, Masaya; Sasaki, Tōru; Haro, Hirotaka; Kondo, Yasuo; Terada, Hidetsugu

doi:10.1109/isie.2018.8433775

Cited by 8 publications

(6 citation statements)

References 7 publications

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“…The grip strength of each finger was measured using the new grip system developed in our institution. The apparatus used and measurement posture were the same as those in the previous report, and data regarding the healthy volunteers have already been reported [11]. The structure of this system was the same as that in the previous report and is shown in Fig.…”

Section: Measurementmentioning

confidence: 99%

“…Therefore, we developed a new grip system that could measure the grip strength of each finger in a single instance to record the time course and analyze the grip motion of healthy volunteers [11]. In this report, to understand the pathophysiology of CTS, we aimed to analyze the grip characteristics of CTS patients by measuring the time course of the grip motion, and we sought to determine the relationship between finger grip strength and subjective symptoms using this new grip system.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of grip-motion characteristics in carpal tunnel syndrome patients using a novel finger grip dynamometer system

et al. 2020

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Background Grip strength measurement is widely used in daily medical practice, and it has been reported that the grip strength decreases in patients with carpal tunnel syndrome (CTS). However, conventional grip dynamometers evaluate only the maximum power of total grip strength and cannot measure the time course of grip motion. In this report, we aimed to determine the grip characteristics of CTS patients by measuring the time course of each finger’s grip motion and to analyze the relationship between finger grip strength and subjective symptoms using this new grip system. Methods The grip strength of each finger was measured using the new grip system that has four pressure sensors on the grip parts of each finger of the Smedley grip dynamometer. We analyzed the time course of grip motion and relationship between finger grip strength and subjective symptoms in 104 volunteer and 51 CTS hands. The Japanese Society for Surgery of the Hand version of the Carpal Tunnel Syndrome Instrument (CTSI-JSSH) and the Disability of Arm, Shoulder, and Hand questionnaire (DASH) were used as subjective evaluation scores. Results In the CTS group, the grip time with the index, middle, and ring fingers was longer, and the time at which strength was lost after reaching the maximum was earlier. Patients with severe subjective symptoms tended to not use the index and middle fingers during grip motion. Conclusions This new system that measures each finger’s grip strength at one time and record the time course of grip motion could quantify a patient’s symptoms easily and objectively, which may contribute to the evaluation of hand function.

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Section: Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of grip-motion characteristics in carpal tunnel syndrome patients using a novel finger grip dynamometer system

et al. 2020

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“…A timeframe of 60 seconds was fixed for the completion of the task. Several boxes transferred from one compartment to another were counted to determine the functional improvement of the hand 15 .…”

Section:  Box and Block Testmentioning

confidence: 99%

Effects of Hand Function Rehabilitation Strategies in Fracture Recovery

Saba,

Tipu,

Jalil

et al. 2024

AMRJ

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Background: Hand function is vital since it is required for carrying out essential everyday tasks that call for accurate hand-to-object interactions. Alarmingly, the hands account for about 29% of all orthopedicinjuries treated in emergency rooms, highlighting the fragility of this body component. Methodology: Participants take part in routine five-day rehabilitation sessions throughout the three-month trial under the supervision of both physical and occupational therapists. The multidisciplinary team closely monitors development and modifies treatments in response to the changing requirements of participants. Results: A total number of n=60 participants, including n=33 males and n=27 females of mean age 42.4±2.5 years, were recruited in the study. The demographic characteristics of participants in each group revealed that the mean age of participants in Group-A was 41.24±3.4 years, inGroup-B was 42.6±2.2 years and in Group-C was 43.15±2.7years. Conclusion: The findings have highlighted that adequate results may be achieved by including functional activities in post-hand fracture rehabilitation programs. Such an all-encompassing strategy speeds up recovery and emphasizes the significance of personalized therapies for the best functional recovery. Keywords: Occupational therapy, Pain, Physical Therapy Techniques, Splints.

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“…Recently, gloves have been instrumented to measure the force in hands in daily activities [8]. There are various systems for measuring finger forces, but the majority of devices are designed to measure grip force [9,10] or pinch force [11] in a single joint position. Dynamometers and hydraulic pressure gauges are the best known tools for measuring these forces.…”

Section: Introductionmentioning

confidence: 99%

“…Therapists ultimately make the connection between grip force and neuromuscular power. However, these simple systems do not allow a precise link between the force developed by the joint and the angle of flexion of the same joint to be assessed [11]. Different devices were developed.…”

Section: Introductionmentioning

confidence: 99%

Development and Operation of an Experimental System to Measure the Moments Generated in the Finger Joints

et al. 2022

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Little information is available on the forces that fingers can generate, and few devices exist to measure the forces they can create. The objective of this paper is to propose an experimental device to measure the moments generated by finger joints. The idea is to focus on a single joint and not on the effort generated by the whole finger. A system leaving only one joint free is developed to measure the maximum attainable moment in different joint positions between the extended and flexed finger. The device is tested on the proximal interphalangeal joints of the index fingers of thirty people for both hands. The results show a dispersion of results from one person to another but with similar trends in the evolution of the maximum achievable moment depending on the angle. Average values of the maximum moments attained by men and women for both hands are given for all angular positions of the joint. The results are analysed using principal component analysis. This analysis shows that four main modes represent more than 99% of the signal and allow the reconstruction of all the data for all the subjects. The four modes obtained can be used as a basis for the development of finger devices by hospital practitioners.

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Development of a Dynamometer to Measure Grip Strength of Each Finger

Cited by 8 publications

References 7 publications

Assessment of grip-motion characteristics in carpal tunnel syndrome patients using a novel finger grip dynamometer system

Assessment of grip-motion characteristics in carpal tunnel syndrome patients using a novel finger grip dynamometer system

Effects of Hand Function Rehabilitation Strategies in Fracture Recovery

Development and Operation of an Experimental System to Measure the Moments Generated in the Finger Joints

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