Measurement system for a gait motion of a patient with pincer nail

Makino, Koji; Ogawa, Youichi; Kanagawa, Takaiki; Yamada, Kazuki; Kano, Miyuki; Shimada, Shinji; Kawamura, Tatsuyoshi; Terada, Hidetsugu

doi:10.1109/sii.2017.8279322

Cited by 1 publication

(2 citation statements)

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“…We developed a novel wireless device to measure gait motion (Fig. ) . Using this device, we examined the pressures on the first and fifth toes, both the pad (on the distal phalanx) and the ball (on the metatarsophalangeal joint), and tracked the gravity center during walking.…”

Section: Case Reportmentioning

confidence: 99%

“…S1). 5 Using this device, we examined the pressures on the first and fifth toes, both the pad (on the distal phalanx) and the ball (on the metatarsophalangeal joint), and tracked the gravity center during walking. A total of 38 feet of 19 healthy female subjects without PN (aged 55.68 AE 9.34 years) and 44 feet of 22 healthy female subjects with bilateral PN (aged 56.80 AE 8.60 years) were investigated.…”

Section: Case Reportmentioning

confidence: 99%

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Presence of a family history and excessive pressure on the first toe pad during walking in female subjects with pincer nails

Makino

Ogawa

Kanagawa

et al. 2019

The Journal of Dermatology

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Pincer nails (PN) are defined as a transverse overcurvature of the nail plate. Although there have been advancements in therapeutic approaches, the precise underlying mechanisms for the development of PN are still not fully understood. Currently, PN are assumed to develop due to lack of upward mechanical force on the toes. We developed a novel wireless device to observe detailed gait motion. We analyzed trends of gait motion in healthy individuals without PN, healthy individuals with PN without a family history of PN, and healthy individuals with PN and a family history of PN. We found that a family history of PN is an independent risk factor for PN, irrespective of gait motion. Moreover, healthy individuals with PN but without a family history of PN exhibit strong and concentrated pressure on the first toe pad during walking. In sum, a family history of PN and excess upward mechanical forces on the first toe pad during walking may be risk factors for the development of PN.

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Section: Case Reportmentioning

confidence: 99%

Section: Case Reportmentioning

confidence: 99%