Vibration energy absorption (VEA) in human fingers-hand-arm system

Dong, Ren G.; Schopper, Aaron W.; McDowell, Thomas W.; Welcome, Daniel E.; Wu, John Z.; Smutz, W. Paul; Warren, Christopher; Rakheja, Subhash

doi:10.1016/j.medengphy.2004.02.003

Cited by 90 publications

(89 citation statements)

References 17 publications

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“…Given the similarities between the anatomy of the hands and feet it is not unreasonable to speculate that their resonant frequencies would be in the same range. The literature suggests the finger-hand-arm system is most susceptible to vibration at higher frequencies (40-100 Hz for the hand-arm system, >100 Hz for the fingers [14]). Furthermore, the prevalence of vascular-induced disorders associated with hand-transmitted vibration (HTV) tends to be greater in workers using tools that have dominant frequencies greater than 63 Hz [15].…”

Section: Introductionmentioning

confidence: 99%

“…Due to differences in structure, each region of the body has a different resonant frequency. The frequency at which the hand-arm system is believed to be at greatest risk of injury is in the 20-40 Hz range, while the fingers are at greater risk above 100 Hz [14,19], because exposure at these frequencies leads to vibration amplification. In a study examining the absolute threshold of the feet, for a seated person exposed to FTV, Forta et al [23] found the absolute threshold to occur between 8-25 Hz and all participants indicated they felt vibration most at the sole of the feet when exposed to FTV at 125 Hz.…”

Section: Introductionmentioning

confidence: 99%

“…It was hypothesized that FTM transmissibility will be greater than FTA transmissibility because there is more mass distributed through the ankle than the metatarsals and the toes can move more freely when standing. FTM transmissibility was also hypothesized to be greater than FTA transmissibility at higher frequencies (45 and 50 Hz) compared to lower frequencies (25 and 30 Hz) based on the response of the fingers and palm to similar exposure frequencies [14]. Furthermore, it was hypothesized that participants with higher arches (lower foot surface area in contact with the vibrating surface) would have lower FTA transmissibility than participants with lower arches.…”

Section: Introductionmentioning

confidence: 99%

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Study of the biodynamic response of the foot to vibration exposure

Goggins

Godwin

Larivière

et al. 2016

OER

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Abstract.BACKGROUND: Exposure to foot-transmitted vibration (FTV) has been linked to injury; however, the biodynamic response of the foot to FTV has not been quantified. OBJECTIVE: The objective was to measure vibration transmissibility from the floor-to-ankle, and the floor-to-metatarsal, during exposure to FTV while standing, and to determine if FTV exposure frequency, or participant mass or arch index (AI) influence the transmission of FTV through the foot. METHODS: Participants' AI was measured. Four ADXL326, tri-axial accelerometers were utilized to measure vibration on the platform medial to distal head of first metatarsal, on the distal head of first metatarsal, on the platform paralleling the medial malleolus, and on the lateral malleolus. Participants were randomly exposed to FTV at 25 Hz, 30 Hz, 35 Hz, 40 Hz, 45 Hz, and 50 Hz for 45 seconds. CONCLUSIONS:The greatest transmissibility magnitude measured at the metatarsal and ankle occurred at 50 Hz and 25-30 Hz respectively, suggesting the formation of a local resonance at each location.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study of the biodynamic response of the foot to vibration exposure

Goggins

Godwin

Larivière

et al. 2016

OER

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“…In contrast, pushing exercise was characterized by combined grip and push with the tension acting mainly at the palm. These differences could have affected in a different way the biodynamic response of the finger-hand-arm system during vibration exposure and the vibration transmissibility to the target muscles (Aldien et al 2006;Dong et al 2004Dong et al , 2005. This leads us to conjecture that the higher effective palm force while pushing the vibratory bar might have favored a larger vibration power transmission to the upper extremity (Dong et al 2005) compared with pulling, which in turn resulted in greater agonist activation of the TB.…”

Section: Discussionmentioning

confidence: 99%

Effect of vibration frequency on agonist and antagonist arm muscle activity

et al. 2015

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compared to non-vibration exercise for both BB (p < 0.01) and TB (p < 0.05) muscles; (3) the vibration-induced increase in antagonist coactivation was proportional to vibration f out in the range 18-42 Hz and (4) the vibrationinduced increase in TB agonist activation and antagonist coactivation occurred at all loading conditions in the range 20-80 % MSL. Conclusion The use of high vibration frequencies within the range of 18-42 Hz can maximize TB agonist activation and antagonist activation of both BB and TB muscles during upper limb vibration exercise.

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“…NIOSH (1989) [14] stated that the components of the hand-transmitted vibration to be measured were (a) acceleration (m/s 2 ), (b) frequency (Hz) and (c) duration of exposure (min/day or hr/day). Previous researches studies have shown that problems associated with exposure to occupational hand-arm vibration increased with the continued exposure to vibration ( [15], [16], [17]). Nagata et.…”

Section: Vibration Level and Exposure Durationmentioning

confidence: 99%

The Effect of Vibration on Muscle Activity and Grip Strength Using an Electric Drill

Widia

Dawal

2013

AEF

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The paper focused on the effects of vibration exposure on muscle activity and grip strength. The study was conducted on eighteen subjects, required to drill wood material using electric drill for 5 and 15 minutes. Electromyography (EMG), Vernier Labpro with 3 axis accelerometer and hand dynamometer were used in the experiment. The results showed that right extensor carpi radialis muscle had the highest percentage of Maximum Voluntary Contraction (MVC) with values of 21.8%MVC-23.5%MVC. The mean vibration level was 10.45 m/s 2 (5 minutes) and 10.69 m/s 2 (15 minutes). Drilling wood material for 15 minutes resulted in higher percentage MVC (7.79%), vibration levels (2.29%), and percentage decrease ratio (11.17%) than using 5 minutes for the extensor carpi radialis muscle. The findings of the study indicated that as the level of vibration and exposure duration increase the muscular activity and the percentage decrease ratio of grip strength would also increase.

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Vibration energy absorption (VEA) in human fingers-hand-arm system

Cited by 90 publications

References 17 publications

Study of the biodynamic response of the foot to vibration exposure

Study of the biodynamic response of the foot to vibration exposure

Effect of vibration frequency on agonist and antagonist arm muscle activity

The Effect of Vibration on Muscle Activity and Grip Strength Using an Electric Drill

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