著者

田中 喜代次 松浦 義行 中村 栄太郎 中塘 二三生 喜多尾 浩代 竹島 伸生 三村 寛一 前田 如矢

出版者

日本生理人類学会

雑誌

The Annals of physiological anthropology (ISSN:02878429)

巻号頁・発行日

vol.9, no.1, pp.59-65, 1990-01-01

被引用文献数

1

著者

中塘 二三生 田中 喜代次 羽間 鋭男 前田 如矢

出版者

日本体力医学会

雑誌

体力科學 (ISSN:0039906X)

巻号頁・発行日

vol.39, no.3, pp.164-172, 1990-06-01

被引用文献数

11 7

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Recently, bioelectrical impedance analysis systems(BIA)have become available for determination of human body composition, The validity of BIA has been found to be sufficiently in the American population. However, more work is needed to assess the validity and applicability of BIA to the Japanese population. The purposes of this study were (1) to test the validity of body composition measured by BIA in comparison with the underwater weighing criterion method, and (2) to develop a convenient equation that would reliably predict body composition using BIA and anthropometric measurements in Japanese females. The subjects were 226 Japanese womn and girls aged 11 to 55 years (23.9±8.3). Body impedance was measured using a tetrapolar electrode method, with a localized 800-μA and 50-kHz current injection(Selco SIF-881. The percentage of body fat (%fat) estunated by BIA was significantly correlated with densitometrically determined %fat (r=0.793, Lukaski et al.method;and r=0.800, Segal et al.method). The magnitude of these correlations was substantially higher when compared with r=0.615 found between the skinfold thickness method and the criterion method. Absolute %fat values estimated by BIA were, however, significantly lower than those determined by the criterion method, thereby indicating the need for a more accurate method of assessing Japanese body composition. For this, we propose the use of D=1.1303-0.0726(Wt/2), where D=body density in g/ml, Wt=body weight in kg, R=(R^2+Xc^2)<0.5> in ohms, and Ht=body height in cm. Lean body mass (LBM) and %fat predicted from this equation were correlated significantly (r=0.924 and r=0.799, respedtively) with values determined by densitometry. The standard error of estimates of LBM and %fat resulted in figures of 1.9kg and 3.7%, respectively. Thus we suggest that BIA is valid, convenient, and inexpensive, and that the prediction equation proposed in this study is useful for assessment of body composition in Japanese adult females.

著者

渡辺 完児 中塘 二三生 田中 喜代次 三宅 眞理 前田 如矢

出版者

日本体力医学会

雑誌

体力科學 (ISSN:0039906X)

巻号頁・発行日

vol.43, no.6, 1994-12-01

著者

大久保 善郎 清野 諭 藪下 典子 大須賀 洋祐 鄭 松伊 根本 みゆき 金 美芝 フィゲロア ラファエル 田中 喜代次

出版者

一般社団法人日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.63, no.4, pp.391-400, 2014-08-01 (Released:2014-07-26)

参考文献数

51

被引用文献数

1 2

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The purpose of this study was to retrospectively examine the association of habitual exercise with “single fall (= 1)”, “multiple falls (≥ 2)”, and “injurious falls (≥ 1)” among community-dwelling older adults. A total of 1,683 community-dwelling older adults, aged 60-97 years (72.6 +/- 6.6 yr, 512 men and 1,171 women) were included in this study. Habitual exercises continued one year or longer (6.4 +/- 9.5 yr) were classified into twelve types. Exercise components (time, quantity, period of continuity, and number of exercises) were divided with median or tertiles. To assess the association between habitual exercises and fall status, multivariable logistic regression analyses with stepwise selection method, were applied. The multivariable logistic regression analyses showed that dance (odds ratio (OR): 0.30, 95% confidence interval (CI): 0.09-0.96) was negatively associated with “single fall”. Bicycling (OR: 3.72, 95% CI: 1.32-10.77) was positively associated with “multiple falls”, and the period of continuity (OR: 0.74, 95% CI: 0.60-0.91) was negatively associated with “multiple falls”. None of the exercise components were selected with regard to “injurious falls”. Results indicate that dance may be an effective type of exercise for fall prevention among community-dwelling older adults. However, caution about falling is warranted toward bicycling as an exercise. Moreover, a longer period of continuity (≥ 4 years) appears to be a positive factor of habitual exercise for fall prevention.

著者

田中 喜代次 金 憲経 中西 とも子 天貝 均

出版者

日本運動生理学会

雑誌

日本運動生理学雑誌 (ISSN:13403036)

巻号頁・発行日

vol.6, no.1, pp.37-45, 1999-01-30

被引用文献数

14

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The results of early work completed using bioelectrical impedance for body composition assessment was limited by technological problems. Most of the research has focused on bioelectrical impedance conducted at a frequency of 50 kHz. It has been recently determined that low- and high-frequency bioelectrical impedance measurements can be used to distinguish the volume of extracellular water (ECW) from the volume of total body water (TBW). Therefore, a multi-frequency bioelectrical impedance method allows an independent assessment of ECW, TBW, and intracellular water (ICW). Using dual energy X-ray absorptiometry (DXA; Lunar DPX-L) as a reference method, we examined the validity of bone mineral content and bone-free lean tissue mass (LTM) measured by a multi-frequency bioelectrical impedance instrument (MLT-100, Sekisui) using a number of frequencies ranging from 2.5 kHz to 350 kHz applied to the right side of the body. The subjects were 52 men and 109 women, aged 23 to 86 years (men: 53.2±17.37 yr, women: 52.5±17.07 yr). The average LTM determined by DXA were 49.4± 5.92 kg for men and 35.6±4.35 kg for women. Multiple regression equations developed in the present study for estimating LTM were: LTM=0.306X_1+0.003X_2+0.098X_3+3.44 (R=0.948, SEE=1.93 kg) for men LTM=0.169X_1+0.003X_2+0.186X_3+5.75 (R=0.917, SEE=1.76 kg) for women where X_1=Ht^2/R_<HIGH>, X_2=H^3/1000 and X_3=Ht^2/R_<LOW> an R_<HIGH> and R_<LOW> stand for resistance of TBW and resistance of ECW, respectively. These equations may be used to evaluate body composition for a wide range of Japanese adults with reasonable accuracy.

著者

金 憲経 松浦 義行 田中 喜代次 稲垣 敦

出版者

日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.41, no.5, pp.548-558, 1992

被引用文献数

4 1

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Excess body fat has generally been considered to influence physical fitness and motor ability in obese boys. However, very few studies have been done on the relationships of percent body fat (%fat), body fat and fat-free mass with physical fitness and motor ability. The purpose of this study was to clarify the relationships between body composition and selected physical fitness and motor ability elements in obese boys. The subjects were three hundreds and five boys aged 12-14 years. Eighteen physical fitness and motor ability elements were tested and skinfold thickness was measured at six sites using an Eiken-type caliper. Impedance (Z) was measured using a tetrapolar bioelectrical impedance plethysmograph (Selco SIF-891) . Body density was calculated from the formula of Kim et al. Variables which represented muscular power and endurance were negatively affected by %fat, while muscular strength was positively related to %fat. Flexibility variables were found not to be affected by %fat. In order to further examine the effects of %fat on physical fitness and motor ability, the subjects were categorized into three groups according to %fat: lean= less than 12% (n=64), average=12-20% (n=192), and obese=greater than 20% (n=49) . The results of comparison among groups clearly indicated that the obese group was significantly poorer in muscular power and endurance but was better in muscular strength than the other groups. To analyze the factorial structure in obese boys, principal factor analysis was applied to the correlation matrix which was calculated with 18 variables, and then six factors were extracted. The differentiation and integration of factorial structure was investigated from the hierarchical factor model. Two factors (muscular power and speed, and flexibility) were extracted at a lower level of rotation. The body fat was found to be one important factor that affects many physical fitness and motor ability elements. The relationships between physical fitness, motor ability and degree of fatness seem to be rather complicated, and a great deal of data should be accumulated for analysis of influence of body fatness in the obese.

著者

田中 喜代次 金 憲経 渡辺 完児

出版者

筑波大学体育科学系

雑誌

筑波大学体育科学系紀要 (ISSN:03867129)

巻号頁・発行日

no.23, pp.13-19, 2000-03

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生体内の水分量や体脂肪率などの身体組成(体組成ともいう)を測定する技術開発は古くから進められてきており、その一つに生体電気インピーダンス(以下、BI)法がある。BI法は、自治体で市民を対象として実施される ...

著者

李 東俊 田中 喜代次 坂根 直樹 吉田 俊秀

出版者

日本肥満学会

雑誌

肥満研究 : 日本肥満学会誌 = Journal of Japan Society for the Study of Obesity (ISSN:1343229X)

巻号頁・発行日

vol.10, no.1, pp.48-53, 2004-04-25

参考文献数

28

被引用文献数

3

著者

金 憲経 田中 喜代次

出版者

筑波大学体育科学系

雑誌

筑波大学体育科学系紀要 (ISSN:03867129)

巻号頁・発行日

no.20, pp.175-182, 1997-03

著者

中塘 二三生 田中 喜代次 渡辺 完児 三宅 眞理 前田 如矢

出版者

日本体力医学会

雑誌

体力科學 (ISSN:0039906X)

巻号頁・発行日

vol.41, no.4, pp.467-476, 1992-08-01

被引用文献数

9

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Several predichon equations for estimating body composition of Japanese men and women have recently been developed using a linear regression model with a combinahon of impedance and anthropometric measurements as independent variables. The purpose of this study was to determine the cross-validity of body density (Db) estimated from bioelectrical impedance (BI) and skinfold thickness (ST) methods in comparison with underwater weighing (UW) as a criterion reference method. Percentage body fat (%BF) was derived from Db according to the equation Brozek et al. Fifty-seven healthy Japanese women, aged 19 to 57 years, volunteered to prticipate in the study. Impedance was measured by use of a portablef four-terminal impedance plethysmograph (Selco, SIF-891). %BF derived from the BI method (r=0.860〜0.875) was correlated with hydrodensitometrically determined %BF to a greater extent than %BF obtained using the ST method (r=0.733〜0.758) or ultrasound method (r=0.536〜0.721). Correlations of various anthropometric indices (r=0.655〜0.691) with hydrodensitometrically deterinined %BF were even lower. It was noteworthy, however, that mean %BF derived from existing BI equations differed significantly from hydrodensitometrically determined mean %BF. Therefore, we attempted to develop a new equation that was applicable to Japanese adult women as follows : Db=1.1613-0.1038 (Wt・Z)/Ht^2, where Wt=weight in kg, Z=impedance in ohms, and Ht=height in cm. The prediction accuracy of this eqation was r=0.866 or SEE=0.0077g/ml. Cross-validation of this equation on a different sample (122 Japanese women, aged 18 to 59 years) revealed a correlation of r=0.869 in terms of %BF, SEE=3.2%, and no significant difference between estimated %BF and the criterion. We sugget that the BI method is one of the most convenient, valid means of assessing human body composition,and that the newly developed BI equation could be useful particularly when the subjects are Japanese adult women in their late teens to fifties.

著者

田中 喜代次 奥野 純子 重松 良祐 大藏 倫博 鈴木 隆雄 金 憲経 鈴木 隆雄 金 憲経

出版者

筑波大学

雑誌

基盤研究(A)

巻号頁・発行日

2007

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要介護化予防を目的とした包括的指針作成において,1)下肢および上肢筋力,平衡性体力,歩行能力,移乗能力および日常生活動作の遂行度に基づく身体機能評価が望ましいこと,2)運動プログラムは体力差や年齢などを考慮し,教室において集団指導,小集団指導または個別指導を適宜選択し,さらに運動習慣化のために在宅運動プログラムの提供が必要であること,3)運動指導ボランティアとその活動を取り巻く自治体や関連団体との連携を強め,長期的活動形態を構築することが必要となることの3点が重要であると考えられた.今後はこれらの研究結果を踏まえ,要介護化予防事業をさらに発展させるために,実践的な検証を推し進めていきたい.