### Abstract

We devised a method to calculate the rotatory angle in the Foulage test. The middle of both thenar eminences, the pivot of the body rotation, is fixed at 5 cm forward from the center of the stabilometer. A mean deviation of the last 10 seconds period (X, Y) in the 60 seconds examination is almost the whole body's center of gravity of the end. The rotatory angle (θ) can be calculated as follows. θ=tan^{-1}(-X)/(5-Y) The calculated angles (θ) of 43 vertigo patients rotated over 10 degrees were correlated very strongly with the angles measured manually with a protractor (y=0.84 x±0.39 R^{2}=0.87).

Original language | English |
---|---|

Pages (from-to) | 41-46 |

Number of pages | 6 |

Journal | Equilibrium Research |

Volume | 75 |

Issue number | 2 |

Publication status | Published - 2016 Apr 1 |

### Fingerprint

### Keywords

- Dynamic equilibrium examination
- Rotatory angle
- Stabilometer
- Step test

### ASJC Scopus subject areas

- Otorhinolaryngology
- Clinical Neurology

### Cite this

*Equilibrium Research*,

*75*(2), 41-46.

**Attempt to measure the rotatory angle in foulage test.** / Yasuda, Tomohisa; Etoh, Norihito; Araki, Yasutomo; Souma, Keiko; Kunihiro, Takanobu.

Research output: Contribution to journal › Article

*Equilibrium Research*, vol. 75, no. 2, pp. 41-46.

}

TY - JOUR

T1 - Attempt to measure the rotatory angle in foulage test

AU - Yasuda, Tomohisa

AU - Etoh, Norihito

AU - Araki, Yasutomo

AU - Souma, Keiko

AU - Kunihiro, Takanobu

PY - 2016/4/1

Y1 - 2016/4/1

N2 - We devised a method to calculate the rotatory angle in the Foulage test. The middle of both thenar eminences, the pivot of the body rotation, is fixed at 5 cm forward from the center of the stabilometer. A mean deviation of the last 10 seconds period (X, Y) in the 60 seconds examination is almost the whole body's center of gravity of the end. The rotatory angle (θ) can be calculated as follows. θ=tan-1(-X)/(5-Y) The calculated angles (θ) of 43 vertigo patients rotated over 10 degrees were correlated very strongly with the angles measured manually with a protractor (y=0.84 x±0.39 R2=0.87).

AB - We devised a method to calculate the rotatory angle in the Foulage test. The middle of both thenar eminences, the pivot of the body rotation, is fixed at 5 cm forward from the center of the stabilometer. A mean deviation of the last 10 seconds period (X, Y) in the 60 seconds examination is almost the whole body's center of gravity of the end. The rotatory angle (θ) can be calculated as follows. θ=tan-1(-X)/(5-Y) The calculated angles (θ) of 43 vertigo patients rotated over 10 degrees were correlated very strongly with the angles measured manually with a protractor (y=0.84 x±0.39 R2=0.87).

KW - Dynamic equilibrium examination

KW - Rotatory angle

KW - Stabilometer

KW - Step test

UR - http://www.scopus.com/inward/record.url?scp=84979009151&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84979009151&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84979009151

VL - 75

SP - 41

EP - 46

JO - Equilibrium Research

JF - Equilibrium Research

SN - 0385-5716

IS - 2

ER -