Reduction in finger blood flow induced by hand-transmitted vibration: effect of hand elevation

Yao, Yuqi; Mauro, Marcella; Bovenzi, Massimo; Griffin, Michael J.

doi:10.1007/s00420-015-1027-0

Cited by 12 publications

(8 citation statements)

References 32 publications

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“…The diastolic pressure reflects the peripheral resistance of the vessels, and so finger blood flow may tend to be less when sitting than when standing. Finger blood flow reduces when the hand is elevated above the heart but the percentage change in finger blood flow induced by vibration is independent of hand elevation (Ye et al, 2015). It therefore seems reasonable to expect that there may be similar percentage changes in finger blood flow in standing persons to those found in this study with supine subjects.…”

Section: Effect Of Vibration On Finger Blood Flowsupporting

confidence: 61%

Reductions in finger blood flow induced by 125-Hz vibration: effect of location of contact with vibration

Yao

Griffin

2015

Int Arch Occup Environ Health

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Section: Effect Of Vibration On Finger Blood Flowsupporting

confidence: 61%

Reductions in finger blood flow induced by 125-Hz vibration: effect of location of contact with vibration

Yao

Griffin

2015

Int Arch Occup Environ Health

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“…Vibration exposure may lead to hand-arm vibration syndrome (HAVS), which is composed of vascular, neurological and muscular components (Burström et al 1998; Ye et al 2015). Typical symptoms include vasospasm of the fingers induced by cold, loss of sensitivity, tingling and paresthesia, and impaired hand function (Heaver et al 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The factors that may affect the risk of developing HAVS symptoms are the tools’ acceleration levels, the duration of exposure, the grip force required, the structure of the work surface, the working posture, the climatic conditions and individual susceptibility (Burström et al 2006; Griffin 1997; Ye et al 2015). …”

Section: Introductionmentioning

confidence: 99%

Tremor and hand-arm vibration syndrome (HAVS) in road maintenance workers

Bast‐Pettersen

Ulvestad

Færden

et al. 2016

Int Arch Occup Environ Health

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ObjectivesThe aim of this study was to evaluate postural and rest tremor among workers using vibrating hand tools, taking into account the possible effects of toxicants such as alcohol and tobacco. A further aim was to study workers diagnosed with hand-arm vibration syndrome (HAVS) at the time of examination.MethodsThis study comprises 103 road maintenance workers, 55 exposed to vibrating hand tools (age 41.0 years; range 21–62) and 48 referents (age 38.5 years; range 19–64). They were examined with the CATSYS Tremor Pen®. Exposure to vibrating tools and serum biomarkers of alcohol and tobacco consumption were measured.ResultsCumulative exposure to vibrating tools was associated with increased postural (p < 0.01) and rest tremor (p < 0.05) and with a higher Center Frequency of postural tremor (p < 0.01) among smokers and users of smokeless tobacco. Rest tremor Center Frequency was higher than postural tremor frequency (p < 0.001).ConclusionsThe main findings indicate an association between cumulative exposure to hand-held vibrating tools, tremor parameters and consumption of tobacco products. The hand position is important when testing for tremor. Rest tremor had a higher Center Frequency. Postural tremor was more strongly associated with exposure than rest tremor. The finding of increased tremor among the HAVS subjects indicated that tremor might be a part of the clinical picture of a HAVS diagnosis. As with all cross-sectional studies, inferences should be made with caution when drawing conclusions about associations between exposure and possible effects. Future research using longitudinal design is required to validate the findings of the present study.

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“…We did not identify major safety risks during the clinical study; however, the local hand arm vibration is associated with the development of certain conditions: Raynaud’s phenomenon, carpal tunnel syndrome [ 28 ], vibration-induced white finger disease [ 29 ], finger pain, back pain, muscular pain or fatigue [ 30 ], chronic subdural hematoma (local application to the head) [ 31 ], skin irritation (including redness, itchiness, and/or swelling) [ 24 ], finger blood flow reduction [ 30 , 31 , 32 , 33 ], and neck and upper limb musculoskeletal disorders. Vibration can increase the postural and rest tremor [ 34 ], exacerbate Dupuytren’s contracture, and have various osteoarticular effects (hand and carpal bone vacuoles and cysts, Kienbock’s disease, navicular pseudoarthrosis, olecranon spurs, and osteoarthrosis of the wrist and elbow joints).…”

Section: Discussionmentioning

confidence: 99%

Local Vibrational Therapy for Essential Tremor Reduction: A Clinical Study

et al. 2020

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Background and objectives: tremor is an unintentional and rhythmic movement of any part of the body that is a typical symptom of Essential Tremor (ET). ET impairs the quality of life of patients and is treated with pharmacotherapy. We investigated the tremor reduction efficacy of an innovative vibrational medical device (IMD) in ET patients. Materials and Methods: we conducted a prospective, single-center, single-arm, pragmatic study in ET patients with an extended safety study to evaluate the efficacy and safety of the Vilim Ball—a local hand-arm vibration device that produces vibrations in the frequency range of 8–18 Hz and amplitude from 0 to 2 mm. The primary endpoint was the decrease in the power spectrum after device use. The secondary endpoints were safety outcomes. Results: In total, 17 patients with ET were included in the main study, and no patients withdrew from the main study. The tremor power spectrum (m2/s3 Hz) was lower after the device use, represented as the mean (standard deviation): 0.106 (0.221); median (Md) 0.009 with the interquartile range; IQR, 0.087 vs. 0.042 (0.078); Md = 0.009 with the IQR 0.012; Wilcoxon signed-rank test V = 123; and p = 0.027. Seven patients reported that vibrational therapy was not effective. Two patients reported an increase in tremor after using the device. In the extended safety study, we included 51 patients: 31 patients with ET and 20 with Parkinsonian tremor, where 48 patients reported an improvement in tremor symptoms and 49 in function. No serious adverse events were reported, while two patients in the Parkinsonian tremor group reported a lack of efficacy of the proposed medical device. Conclusions: the device reduces essential tremor in some patients and is safe to use in ET.

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Reduction in finger blood flow induced by hand-transmitted vibration: effect of hand elevation

Cited by 12 publications

References 32 publications

Reductions in finger blood flow induced by 125-Hz vibration: effect of location of contact with vibration

Reductions in finger blood flow induced by 125-Hz vibration: effect of location of contact with vibration

Tremor and hand-arm vibration syndrome (HAVS) in road maintenance workers

Local Vibrational Therapy for Essential Tremor Reduction: A Clinical Study

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