In vivo measurement of human rectus femoris architecture by ultrasonography

Validity and applicability

Ryoichi Ema, Taku Wakahara, Yasuyoshi Mogi, Naokazu Miyamoto, Toshihiko Komatsu, Hiroaki Kanehisa, Yasuo Kawakami

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The architectural feature of the rectus femoris (RF) has been scarcely investigated despite its substantial contribution to knee extension torque and large plasticity in the muscularity. This study aimed to examine the reproducibility and validity of ultrasound measurements of RF architecture and interrelationships among the architectural parameters. After confirming the measurement accuracy of an examiner (measurement errors <1%), in vivo and cadaveric measurements of fascicle lengths and pennation angles of RF were performed. Day-to-day reproducibility of measurements was investigated in vivo including muscle thickness measurement. Validity of measurements was investigated by comparing the values between direct and ultrasound measurements for the cadaver. The intraclass correlation coefficients were 0·984, 0·960 and 0·932, and root mean square difference between measured values on 2 days was 0·8 mm, 3·1 mm and 1·4° for muscle thickness, fascicle length and pennation angle, respectively. The validity of measurements was similar or better than those of previous reports on other muscles. We also confirmed a positive correlation between the muscle thickness and the pennation angle as has been shown in other muscles. The current results warrant the use of B-mode ultrasonography for examining the architectural characteristics of RF in vivo.

Original languageEnglish
Pages (from-to)267-273
Number of pages7
JournalClinical Physiology and Functional Imaging
Volume33
Issue number4
DOIs
Publication statusPublished - 2013 Jul

Fingerprint

Quadriceps Muscle
Ultrasonography
Muscles
Torque
Cadaver
Knee

Keywords

  • Cadaver
  • Fascicle length
  • Muscle thickness
  • Pennation angle
  • Reproducibility

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)

Cite this

In vivo measurement of human rectus femoris architecture by ultrasonography : Validity and applicability. / Ema, Ryoichi; Wakahara, Taku; Mogi, Yasuyoshi; Miyamoto, Naokazu; Komatsu, Toshihiko; Kanehisa, Hiroaki; Kawakami, Yasuo.

In: Clinical Physiology and Functional Imaging, Vol. 33, No. 4, 07.2013, p. 267-273.

Research output: Contribution to journalArticle

Ema, Ryoichi ; Wakahara, Taku ; Mogi, Yasuyoshi ; Miyamoto, Naokazu ; Komatsu, Toshihiko ; Kanehisa, Hiroaki ; Kawakami, Yasuo. / In vivo measurement of human rectus femoris architecture by ultrasonography : Validity and applicability. In: Clinical Physiology and Functional Imaging. 2013 ; Vol. 33, No. 4. pp. 267-273.
@article{c8356589226f4d98bad50b41c6b1001a,
title = "In vivo measurement of human rectus femoris architecture by ultrasonography: Validity and applicability",
abstract = "The architectural feature of the rectus femoris (RF) has been scarcely investigated despite its substantial contribution to knee extension torque and large plasticity in the muscularity. This study aimed to examine the reproducibility and validity of ultrasound measurements of RF architecture and interrelationships among the architectural parameters. After confirming the measurement accuracy of an examiner (measurement errors <1{\%}), in vivo and cadaveric measurements of fascicle lengths and pennation angles of RF were performed. Day-to-day reproducibility of measurements was investigated in vivo including muscle thickness measurement. Validity of measurements was investigated by comparing the values between direct and ultrasound measurements for the cadaver. The intraclass correlation coefficients were 0·984, 0·960 and 0·932, and root mean square difference between measured values on 2 days was 0·8 mm, 3·1 mm and 1·4° for muscle thickness, fascicle length and pennation angle, respectively. The validity of measurements was similar or better than those of previous reports on other muscles. We also confirmed a positive correlation between the muscle thickness and the pennation angle as has been shown in other muscles. The current results warrant the use of B-mode ultrasonography for examining the architectural characteristics of RF in vivo.",
keywords = "Cadaver, Fascicle length, Muscle thickness, Pennation angle, Reproducibility",
author = "Ryoichi Ema and Taku Wakahara and Yasuyoshi Mogi and Naokazu Miyamoto and Toshihiko Komatsu and Hiroaki Kanehisa and Yasuo Kawakami",
year = "2013",
month = "7",
doi = "10.1111/cpf.12023",
language = "English",
volume = "33",
pages = "267--273",
journal = "Clinical Physiology and Functional Imaging",
issn = "1475-0961",
publisher = "Wiley-Blackwell",
number = "4",

}

TY - JOUR

T1 - In vivo measurement of human rectus femoris architecture by ultrasonography

T2 - Validity and applicability

AU - Ema, Ryoichi

AU - Wakahara, Taku

AU - Mogi, Yasuyoshi

AU - Miyamoto, Naokazu

AU - Komatsu, Toshihiko

AU - Kanehisa, Hiroaki

AU - Kawakami, Yasuo

PY - 2013/7

Y1 - 2013/7

N2 - The architectural feature of the rectus femoris (RF) has been scarcely investigated despite its substantial contribution to knee extension torque and large plasticity in the muscularity. This study aimed to examine the reproducibility and validity of ultrasound measurements of RF architecture and interrelationships among the architectural parameters. After confirming the measurement accuracy of an examiner (measurement errors <1%), in vivo and cadaveric measurements of fascicle lengths and pennation angles of RF were performed. Day-to-day reproducibility of measurements was investigated in vivo including muscle thickness measurement. Validity of measurements was investigated by comparing the values between direct and ultrasound measurements for the cadaver. The intraclass correlation coefficients were 0·984, 0·960 and 0·932, and root mean square difference between measured values on 2 days was 0·8 mm, 3·1 mm and 1·4° for muscle thickness, fascicle length and pennation angle, respectively. The validity of measurements was similar or better than those of previous reports on other muscles. We also confirmed a positive correlation between the muscle thickness and the pennation angle as has been shown in other muscles. The current results warrant the use of B-mode ultrasonography for examining the architectural characteristics of RF in vivo.

AB - The architectural feature of the rectus femoris (RF) has been scarcely investigated despite its substantial contribution to knee extension torque and large plasticity in the muscularity. This study aimed to examine the reproducibility and validity of ultrasound measurements of RF architecture and interrelationships among the architectural parameters. After confirming the measurement accuracy of an examiner (measurement errors <1%), in vivo and cadaveric measurements of fascicle lengths and pennation angles of RF were performed. Day-to-day reproducibility of measurements was investigated in vivo including muscle thickness measurement. Validity of measurements was investigated by comparing the values between direct and ultrasound measurements for the cadaver. The intraclass correlation coefficients were 0·984, 0·960 and 0·932, and root mean square difference between measured values on 2 days was 0·8 mm, 3·1 mm and 1·4° for muscle thickness, fascicle length and pennation angle, respectively. The validity of measurements was similar or better than those of previous reports on other muscles. We also confirmed a positive correlation between the muscle thickness and the pennation angle as has been shown in other muscles. The current results warrant the use of B-mode ultrasonography for examining the architectural characteristics of RF in vivo.

KW - Cadaver

KW - Fascicle length

KW - Muscle thickness

KW - Pennation angle

KW - Reproducibility

UR - http://www.scopus.com/inward/record.url?scp=84878150429&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84878150429&partnerID=8YFLogxK

U2 - 10.1111/cpf.12023

DO - 10.1111/cpf.12023

M3 - Article

VL - 33

SP - 267

EP - 273

JO - Clinical Physiology and Functional Imaging

JF - Clinical Physiology and Functional Imaging

SN - 1475-0961

IS - 4

ER -