Validity of muscle thickness-based prediction equation for quadriceps femoris volume in middle-aged and older men and women

Miyuki Nakatani, Yohei Takai, Ryota Akagi, Taku Wakahara, Norihide Sugisaki, Megumi Ohta, Yasuo Kawakami, Tetsuo Fukunaga, Hiroaki Kanehisa

研究成果: Article

5 引用 (Scopus)

抄録

Background: This study examined the validity of muscle thickness (MT)-based prediction equation for the muscle volume of the quadriceps femoris (QFMV) by evaluating the applicability of a prediction equation previously derived from young men and by developing a new prediction equation in middle-aged and older individuals. Methods: The MT at the midpoint of the thigh anterior and QFMV were determined using ultrasonography and magnetic resonance imaging in 30 men and 30 women aged 51 to 77 years. First, we examined the validity of the MT-based prediction equation previously developed for young men to estimate the QFMV of middle-aged and older individuals. Second, we allocated the subjects to validation or cross-validation group and developed a prediction equation for estimating the QFMV using a stepwise multiple regression analysis. Results: The published equation generated a small but a significant difference between the measured and estimated QFMV, with a systematic error depending on the size of QFMV. A multiple regression analysis for the validation group produced the following equation: QFMV (cm3) = (sex × 267.7) + (MT × 249.3) + (thigh length × 41.1) − 1663.7 (sex: man = 1, woman = 0). R2 and SEE of the regression equation were 0.888 and 124.4 cm3 (12.0 %), respectively. The developed equation was validated and cross-validated. Conclusion: For middle-aged and older individuals, the prediction equation previously derived from young men is not applicable, and the newly developed prediction equation with sex, MT, and thigh length as independent variables is applicable for estimating QFMV.

元の言語English
ページ(範囲)1-9
ページ数9
ジャーナルEuropean Journal of Applied Physiology
DOI
出版物ステータスAccepted/In press - 2016 9 2

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Public Health, Environmental and Occupational Health
  • Physiology (medical)

これを引用

Validity of muscle thickness-based prediction equation for quadriceps femoris volume in middle-aged and older men and women. / Nakatani, Miyuki; Takai, Yohei; Akagi, Ryota; Wakahara, Taku; Sugisaki, Norihide; Ohta, Megumi; Kawakami, Yasuo; Fukunaga, Tetsuo; Kanehisa, Hiroaki.

:: European Journal of Applied Physiology, 02.09.2016, p. 1-9.

研究成果: Article

Nakatani, Miyuki ; Takai, Yohei ; Akagi, Ryota ; Wakahara, Taku ; Sugisaki, Norihide ; Ohta, Megumi ; Kawakami, Yasuo ; Fukunaga, Tetsuo ; Kanehisa, Hiroaki. / Validity of muscle thickness-based prediction equation for quadriceps femoris volume in middle-aged and older men and women. :: European Journal of Applied Physiology. 2016 ; pp. 1-9.
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title = "Validity of muscle thickness-based prediction equation for quadriceps femoris volume in middle-aged and older men and women",
abstract = "Background: This study examined the validity of muscle thickness (MT)-based prediction equation for the muscle volume of the quadriceps femoris (QFMV) by evaluating the applicability of a prediction equation previously derived from young men and by developing a new prediction equation in middle-aged and older individuals. Methods: The MT at the midpoint of the thigh anterior and QFMV were determined using ultrasonography and magnetic resonance imaging in 30 men and 30 women aged 51 to 77 years. First, we examined the validity of the MT-based prediction equation previously developed for young men to estimate the QFMV of middle-aged and older individuals. Second, we allocated the subjects to validation or cross-validation group and developed a prediction equation for estimating the QFMV using a stepwise multiple regression analysis. Results: The published equation generated a small but a significant difference between the measured and estimated QFMV, with a systematic error depending on the size of QFMV. A multiple regression analysis for the validation group produced the following equation: QFMV (cm3) = (sex × 267.7) + (MT × 249.3) + (thigh length × 41.1) − 1663.7 (sex: man = 1, woman = 0). R2 and SEE of the regression equation were 0.888 and 124.4 cm3 (12.0 {\%}), respectively. The developed equation was validated and cross-validated. Conclusion: For middle-aged and older individuals, the prediction equation previously derived from young men is not applicable, and the newly developed prediction equation with sex, MT, and thigh length as independent variables is applicable for estimating QFMV.",
keywords = "Bland–Altman plot, Cross validation, Magnetic resonance imaging, Ultrasonography",
author = "Miyuki Nakatani and Yohei Takai and Ryota Akagi and Taku Wakahara and Norihide Sugisaki and Megumi Ohta and Yasuo Kawakami and Tetsuo Fukunaga and Hiroaki Kanehisa",
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T1 - Validity of muscle thickness-based prediction equation for quadriceps femoris volume in middle-aged and older men and women

AU - Nakatani, Miyuki

AU - Takai, Yohei

AU - Akagi, Ryota

AU - Wakahara, Taku

AU - Sugisaki, Norihide

AU - Ohta, Megumi

AU - Kawakami, Yasuo

AU - Fukunaga, Tetsuo

AU - Kanehisa, Hiroaki

PY - 2016/9/2

Y1 - 2016/9/2

N2 - Background: This study examined the validity of muscle thickness (MT)-based prediction equation for the muscle volume of the quadriceps femoris (QFMV) by evaluating the applicability of a prediction equation previously derived from young men and by developing a new prediction equation in middle-aged and older individuals. Methods: The MT at the midpoint of the thigh anterior and QFMV were determined using ultrasonography and magnetic resonance imaging in 30 men and 30 women aged 51 to 77 years. First, we examined the validity of the MT-based prediction equation previously developed for young men to estimate the QFMV of middle-aged and older individuals. Second, we allocated the subjects to validation or cross-validation group and developed a prediction equation for estimating the QFMV using a stepwise multiple regression analysis. Results: The published equation generated a small but a significant difference between the measured and estimated QFMV, with a systematic error depending on the size of QFMV. A multiple regression analysis for the validation group produced the following equation: QFMV (cm3) = (sex × 267.7) + (MT × 249.3) + (thigh length × 41.1) − 1663.7 (sex: man = 1, woman = 0). R2 and SEE of the regression equation were 0.888 and 124.4 cm3 (12.0 %), respectively. The developed equation was validated and cross-validated. Conclusion: For middle-aged and older individuals, the prediction equation previously derived from young men is not applicable, and the newly developed prediction equation with sex, MT, and thigh length as independent variables is applicable for estimating QFMV.

AB - Background: This study examined the validity of muscle thickness (MT)-based prediction equation for the muscle volume of the quadriceps femoris (QFMV) by evaluating the applicability of a prediction equation previously derived from young men and by developing a new prediction equation in middle-aged and older individuals. Methods: The MT at the midpoint of the thigh anterior and QFMV were determined using ultrasonography and magnetic resonance imaging in 30 men and 30 women aged 51 to 77 years. First, we examined the validity of the MT-based prediction equation previously developed for young men to estimate the QFMV of middle-aged and older individuals. Second, we allocated the subjects to validation or cross-validation group and developed a prediction equation for estimating the QFMV using a stepwise multiple regression analysis. Results: The published equation generated a small but a significant difference between the measured and estimated QFMV, with a systematic error depending on the size of QFMV. A multiple regression analysis for the validation group produced the following equation: QFMV (cm3) = (sex × 267.7) + (MT × 249.3) + (thigh length × 41.1) − 1663.7 (sex: man = 1, woman = 0). R2 and SEE of the regression equation were 0.888 and 124.4 cm3 (12.0 %), respectively. The developed equation was validated and cross-validated. Conclusion: For middle-aged and older individuals, the prediction equation previously derived from young men is not applicable, and the newly developed prediction equation with sex, MT, and thigh length as independent variables is applicable for estimating QFMV.

KW - Bland–Altman plot

KW - Cross validation

KW - Magnetic resonance imaging

KW - Ultrasonography

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