Impact to the base of the palm

Cochran, David J.; Shinde, Pramod B.; Ding, Xuedong; Wiley, Matt; Stentz, Terry L.

doi:10.1037/e577672012-031

Cited by 2 publications

(11 citation statements)

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“…The quality of the articles was rated on the information given, such as the measurement device used and if the results described the complete set of important data for hand strikes, that is, values of peak force, acceleration, and impulse. The results of Cochran et al (), for example, only describe values for angular velocity and kinetic energy for different masses.…”

Section: Resultsmentioning

confidence: 99%

“…One article described relationships between different strike parameters such as force, strike angles, and perception of severity when striking (Ge et al, ). Cochran et al () showed the effect of different energy levels and velocities on impacts to the palm. One article investigated the difference between fist strikes and palm strikes with maximum effort (Morgan & Carrier, ).…”

Section: Resultsmentioning

confidence: 99%

“…All articles described their force measurement devices used in their methodology. Two of the five studies used a simulation device for hand strikes (Murphy, ; Potvin et al, – Study 1), two aimed at metal force plates (Potvin et al, – Study 2; Ge et al, ), one at a pendulum device (Cochran et al, ) and one at a punching bag (Morgan & Carrier, ). The number of subjects ranges from eight (Ge et al, ) to 29 (Potvin et al, – Study 1).…”

Section: Resultsmentioning

confidence: 99%

“…Two articles investigated acceleration variables: peak acceleration, acceleration impulse, the rate of acceleration, and time‐to‐peak acceleration (Murphy, ; Potvin et al, ). Two other articles showed values for peak acceleration (Cochran et al, ; Ge et al, ), and one article indicated the rate of acceleration (Morgan & Carrier, ). The rate of acceleration, also known as a jerk, describes the change of acceleration during contact with the impact surface (Cochran et al, ; Murphy, ; Potvin et al, ).…”

Section: Resultsmentioning

confidence: 99%

“…Because the use of tools like a hammer is unfeasible as well, workers are required to strike or press firmly with their hands (Ohlander, Keskin, Weiler, Stork, & Radon, ). As a consequence, workers are commonly exposed to high impacts to the base of the palm or the hypothenar of the fist, which constitute relevant risk factors for musculoskeletal disorders (MSDs; Cochran, Shinde, Ding, Wiley, & Stentz, ; Ge, Alkhaledi, Cochran, & Amar, ). The authors suggest that force, frequency, duration, and posture are factors that increase the risk of sustaining cumulative trauma disorders (CTDs).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Hand as hammer: A comprehensive review of biomechanical studies related to occupational hand strikes

Hausmanninger

Komnik

Potthast

2019

Hum Ftrs & Erg Mfg Svc

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A growing number of workers in modern automotive assembly plants are confronted with occupational tasks involving repeated high-impact hand strikes. Such repetitive physical workloads account for diseases of soft tissues or musculoskeletal disorders in the hand, wrist, or entire upper body. The purpose of this review was to identify and discuss the most pertinent occupational and physiological investigations concerning such hand strikes with particular emphasis on the biomechanical parameters examined. Articles were drawn from four databases to identify publications about occupational hand strikes. First, studies were selected that evaluated hand impact loads measured with the help of force measurement devices.For a deeper understanding of biomechanical factors regarding hand impacts, the scope of the search was extended to include ancillary studies about impacts on wrists or elbows. Overall, 945 abstracts were screened, and five full-text articles were included in the final review. In addition, 34 ancillary articles about impact stress on the hand-arm complex were discussed because of positive relations between high forces, repetition rates or acceleration, and progressing stress in the hand-arm complex identified in studies about critical biomechanical load limits, in the field of fall arrests and sports, i.e. tennis. Furthermore, studies about effective arm movements and body postures during hand strikes as used in martial arts were reviewed. Although certain biomechanical parameters are both known and well documented, studies available at present cannot sufficiently account for specific disorders in the wrist or arm that are triggered by occupational hand strikes.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hand as hammer: A comprehensive review of biomechanical studies related to occupational hand strikes

Hausmanninger

Komnik

Potthast

2019

Hum Ftrs & Erg Mfg Svc

View full text Add to dashboard Cite

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Biomechanical investigation of load differences on the upper extremities in dynamic hand strikes and isometric hand pushes during assembly tasks

Hausmanninger

Komnik

Fleiter

et al. 2022

Hum Ftrs & Erg Mfg Svc

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This study determines the effects of increasing forces on different musculoskeletal load parameters, such as muscle activity and joint movement, during assembly taskrelated dynamic hand strikes and isometric push forces. Fifteen subjects (12 men and 3 women) were instructed to strike and push on a force plate in two selected conditions. In the first condition, the palmar surface of the dominant hand is oriented horizontal to the measuring surface; in the second condition, the body position is maintained, but the hand is turned 90°to allow the use of the ulnar side of the hand (fist strike position). The subjects accomplished four force levels in ascending order (i.e., 150, 250, 350, and 400 N) within the corresponding striking and pushing conditions. The extracted kinematic variables of interest were strike velocity, recoil velocity, force plate contact time, peak vertical reaction force component (force plate), force impulse, muscle activity, and maximum joint ranges of motion during the push or strike process. Differences in the results between pushes and strikes and, under certain circumstances, between fist and palm strikes were identified. Increasing push forces correlate with the muscle activity in the pectoralis and lower arm extensor muscles. The fact that, at push forces > 250 N, the subjects modify and adapt their upper body and arm posture to achieve the required force could reveal an obvious feasibility limit and explain why assembly workers tend to use their hands as a hammer.assembly, fist, hand strike, palm, push force | INTRODUCTIONAssembly tasks in different industries require effective performances of the working population. Manual activities, such as strikes or near static push forces with the hand, have gained steady attention in the broader literature. These working methods are time efficient and do not require tools, such as screws and glue. Especially, striking with the hand is an intuitive method of force transmission. Studies on the percussive behavior of humans during the Stone Age and even among prehistoric primates have revealed that hammering using

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Impact to the base of the palm

Cited by 2 publications

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Hand as hammer: A comprehensive review of biomechanical studies related to occupational hand strikes

Hand as hammer: A comprehensive review of biomechanical studies related to occupational hand strikes

Biomechanical investigation of load differences on the upper extremities in dynamic hand strikes and isometric hand pushes during assembly tasks

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