Circulatory disturbances of the foot in vibration syndrome

Sakakibara, Hisataka; Hashiguchi, Toshinori; Furuta, Masashi; Kondo, Takaaki; Miyao, Masaru; Yamada, Shinya

doi:10.1007/bf00379079

Cited by 21 publications

(16 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Raynaud's phenomenon of the feet has been examined mostly in conjunction with HAVS [7][8][9][10][11][12][13]. 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.…”

Section: Introductionmentioning

confidence: 99%

Study of the biodynamic response of the foot to vibration exposure

Goggins

Godwin

Larivière

et al. 2016

OER

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

Study of the biodynamic response of the foot to vibration exposure

Goggins

Godwin

Larivière

et al. 2016

OER

View full text Add to dashboard Cite

show abstract

“…Such enhanced vasospastic response to cold is considered to result from an exaggerated central sympathetic vasoconstrictor reflex and local changes in the digital vessels (e.g., thickening of the muscular wall, endothelial damage, functional receptor changes) [2][3][4] . The authors have previously indicated that VWF patients have lower skin temperature in both fingers and toes, and that they are more likely to complain of coldness in the four extremities, as compared with healthy subjects 5,6) . The low skin temperature of the extremities can be linked with their increased sympathetic response to cold 7) .…”

Section: Introductionmentioning

confidence: 99%

Autonomic Nervous Activity during Hand Immersion in Cold Water in Patients with Vibration-Induced White Finger.

et al. 2002

Self Cite

View full text Add to dashboard Cite

Autonomic nervous function in response to cold was investigated in 21 patients with vibration-induced white finger (VWF) and 17 healthy controls of similar age, using power spectral analysis of heart rate variability. In a supine position, electrocardiogram and skin temperature of both index fingers were measured during immersion of right hand in cold water at 10°C for 10 minutes. Autonomic nervous activity was evaluated from the power of the low-frequency component (LF: 0.02-0.15 Hz), the high-frequency component (HF: 0.15-0.40 Hz) and the ratio of the LF to the HF power (LF/HF ratio). The LF/HF ratio, an index of sympathetic nervous activity, significantly increased during the immersion in the VWF patients, but did not significantly increase in the controls. The LF/HF ratio was then significantly greater in the patients than in the controls during the first 1-2 minutes of the immersion. The HF power related to parasympathetic nervous activity did not change significantly in either group. Finger skin temperature of the immersed right hand was significantly lower in the VWF patients than in the controls during the last five minutes of the immersion and in the recovery period. The present results indicate that sympathetic nervous response to cold is significantly enhanced in VWF patients. The exaggerated sympathetic response to cold in these patients is considered to contribute to the enhanced vasoconstriction of their extremities.

show abstract

“…Patients with VS and vibration-induced white ®nger (VWF) have been reported to show signi®cantly lower skin temperature in the big toe than controls, while patients with VS and without VWF do not (Sakakibara et al 1991). This suggests that VWF in the upper extremities is an indicator of circulatory disturbance in the feet of VS patients.…”

Section: Introductionmentioning

confidence: 93%