巻号一覧
52 巻, 2 号
選択された号の論文の11件中1～11を表示しています
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小澤 雄二, 小郷 克敏2003 年 52 巻 2 号 p. 131-140
発行日: 2003/04/01
公開日: 2010/09/30
ジャーナル フリーThis study was designed to investigate the properties of the three typical kendo practices (kirikaeshi, kakarigeiko, and jigeiko) in terms of changes in urine flow and creatinine excretion after practice events. The subjects were six male university kendo practitioners. They performed four exercises that were three kendo practices and a warming up without a kendo practice as the control, at a separate day respectively. In each exercise, five urine samples were collected continuously as follows: (1) after 30 minutes rest (rest), (2) immediately after warming up (w-up), (3-5) at every 30 minutes after practice event up to 90 minutes (30'--90'-urine) . Two blood sam-ples were collected at the rest period and 5-10 minutes after exercise. The blood lactate concentration after kendo practices rose to 1.09-8.02 times of rest level. The 30'-urine flow tended to decrease than w-up in kirikaeshi, jigeiko and control, but to increase in kakarigeiko. Creatinine concentration of 30'-urine rose significantly in the control, kirikaeshi and jigeiko than w-up, but significantly fell in kakarigeiko. The kakarigeiko brought peculiar changes in 30'-urine. The urinary changes after exercises (30'-urine rest) indicated nonlinear relation with blood lactate change ratios. These results indicate that the kendo practices bring the two-way influences in urinary change, one is diuretic effect accompanied with lactate accumulation in the kakarigeiko, and the other is the antidiuretic effect accompanied with less lactate accumulation in the kirikaeshi and jigeiko.抄録全体を表示PDF形式でダウンロード (1240K) -
庄野 菜穂子, 道下 竜馬, 松永 和美, 鶴田 敏幸2003 年 52 巻 2 号 p. 141-147
発行日: 2003/04/01
公開日: 2010/09/30
ジャーナル フリーHeart rate (HR) corresponding to lactate threshold (LT) was evaluated in patients with multiple risk factors and applied to determine the target HR by Karvonen's formula calculated from the predicted HR max. The subjects were 52 outpatients (33 men and 19 women) aged from 23 to 70 years old (mean 46.9) with more than 2 risk factors including obesity, hypertension, diabetes mellitus, impaired glucose tolerance, dyslipidemia, hyperuricemia, and hyperinsulinemia. A multistage graded test of submaximal exercise on electric bicycle ergometer was performed for each subject before starting exercise therapy. The workload was increased every 4 minutes, and heart rate, blood pressure, and blood lactate concentration were measured during the last 1 minute of each stage. The LTHR ranged from 80 to 120 beats/min (mean 101±10) and Karvonen's coefficients ranged from 0.08 to 0.40 (mean 0.22±0.08) . Because of these differences and variance, it is suggested that LTHR should be measured directly or about 20% HR reserve should be prescribed at least when starting exercise therapy for these cases.抄録全体を表示PDF形式でダウンロード (770K) -
中川 喜直, 服部 正明, 原田 邦明, 板東 道夫, 岡野 五郎2003 年 52 巻 2 号 p. 149-157
発行日: 2003/04/01
公開日: 2010/09/30
ジャーナル フリーGender differences were measured in the amount of intramyocellular triglyceride (IMCL) and extramyocellular triglyceride (EMCL) in skeletal muscles using1H-MR spectroscopy and their relation to body fat and peak VO2was studied. Fourteen apparently healthy subjects were separated into groups by gender. Both the male and female group subjects were selected according to similar ages and BMI (male: n=7, BMI=20.5±0.6 kg/m2, age=21.1±0.7 years, female: n=7, BMI=20.6±0.5 kg/m2, age=18.7±0.3 years) . We found a significant correlation between IMCL and EMCL in the soleus (SQL: p<0.01) and medial gastrocnemius (MG: p<0.01) muscles. IMCL values in SQL were significantly higher than IMCL values in MG and tibialis anterior muscle (TA) in both males and females in the order of SQL>MG>TA (p<0.01) .
IMCL and EMCL values in MG and SQL among females were significantly higher (p<0.01) than their corresponding values in males. However, a gender difference in IMCL and EMCL values for TA was not found. There was no correlation between IMCL and EMCL values for each muscle and BMI ; but IMCL (r=0.63 in SQL) and EMCL (r=0.88 and r=0.73 in SQL, and MG, respectively; p< 0.01) values correlated significantly with percent FAT. There was no correlation between IMCL values for each muscle and peak VO2; but the EMCL values of SQL correlated quite negatively with peak VO2 (r=-0.63, p<0.05) . These results suggest that there are gender differences in intramyocellular and extramyocellular triglyceride contents. Lipids were positively related to percent body fat in SQL and MG; EMCL values may have a negative effect on endurance capacity.抄録全体を表示PDF形式でダウンロード (2185K) -
朝比奈 茂, 浅野 和仁, 堀川 浩之, 久光 正, 佐藤 三千雄2003 年 52 巻 2 号 p. 159-166
発行日: 2003/04/01
公開日: 2010/09/30
ジャーナル フリーThe influence of exercise on the endogenous levels of both β-endorphin (BE) and corticosteroid (CS) in the hypothalamus and plasma was examined in rats. F344 male rats, five weeks of age, were divided into three groups: involuntary exercised (IE), non-exercised (NE) and control (C) groups. Rats in the IE group were exercised every day for one hour at the speed of 20 m mm n for 7 to 28 days. After training, the hypothalamus and plasma were obtained from rats. BE levels in water soluble extracts of hypothalamus were examined by rat BE ELISA test kits; and CS contents in plasma was examined by RIA. The amount of BE in the hypothalamus obtained from rats in the IE group was much higher than that in the NE and C groups. Although there was no significant difference between rats exercised for 7, 14, and 21 days, BE levels in the hypothalamus from rats exercised for 28 days was significantly higher than for 7 days. The amount of BE in the hypothalamus of NE rats was nearly identical to that of C rats. On the other hand, there were no significant changes in plasma CS levels. These results may suggest that exercise, especially running, causes on increase in BE levels in the hypothalamus.抄録全体を表示PDF形式でダウンロード (652K) -
木越 清信, 尾縣 貢, 田内 健二, 大山 卞 圭悟, 高松 薫2003 年 52 巻 2 号 p. 167-178
発行日: 2003/04/01
公開日: 2010/12/10
ジャーナル フリー本研究の目的は, 5秒間の全力ペダリング運動中における座位姿勢の変化が下肢筋群の筋活動および最大パワーに及ぼす影響を明らかにすることであった.被験者には, 大学陸上競技部に所属する男性10名 (21.5±1.9yrs, 178.8±4.7cm, 71.0±5.6kg) を用い, シートの高さを変化させた3種類 (High, MiddleおよびLow) の試技条件下で, それぞれ5秒間のペダリング運動を体重×0.1kpの負荷で行わせた.
主な結果は以下の通りである.
1.3回転の最大パワーは, HighがLowと比較して有意に高値を示した.
2.骨盤傾斜角度は, HighおよびMiddleがLowと比較して有意に高値を示した.
3.膝関節最大伸展角度および屈曲角度は, High, MiddleおよびLowの川頁に有意に高値を示した.
4.脊柱起立筋および大腿二頭筋におけるmEMGは, HighがLowと比較して有意に高値を示した.
5.Highにおいては, 3回転の最大パワーと大殿筋におけるmEMGとの間に有意な正の相関関係が認められた.また, 3回転の最大パワーと大腿二頭筋および外側広筋におけるmEMGとの間に正の相関傾向が認められた.以上の結果から, 5秒間の全力ペダリング運動において, シート高の変化による座位姿勢変化は下肢筋群, 特に股関節伸展筋群の筋張力および最大パワーに影響を及ぼす可能性があることが示唆された.抄録全体を表示PDF形式でダウンロード (1178K) -
―心理的コンディションインベントリーにおける検討―岩井 一師, 中里 浩一, 入江 一憲, 安達 巧, 中嶋 寛之2003 年 52 巻 2 号 p. 179-187
発行日: 2003/04/01
公開日: 2010/09/30
ジャーナル フリーThe purpose of this study was to investigate relationships between low back pain (LBP) and psychological conditions in university wrestlers.
We examined psychological conditions of seventy male university wrestlers using the Psycholo gical Condition Inventory (PCI) test and evaluated whether psychological conditions have some relationships with LBP. Evaluations of LBP were based on a questionnaire test and the diagnosis of orthopedic surgeons. Based on the LBP evaluation, we assigned all wrestlers into two groups as the LBP group and the non-LBP group.
We obtained the following results. There were twenty-eight university wrestlers (40%) in the LBP group and forty-two wrestlers (60%) in the non-LBP group. Wrestlers in the LBP group showed significantly high values in all factors relating to fatigue in comparison to the non-LBP group.
We conclud that the university wrestlers with LBP feel fatigue in their minds and bodies.抄録全体を表示PDF形式でダウンロード (876K) -
薄井 澄誉子, 岡 純, 山川 純, 佐々木 由美, 樋口 満2003 年 52 巻 2 号 p. 189-198
発行日: 2003/04/01
公開日: 2010/09/30
ジャーナル フリーThe basal metabolic rate (BMR) of 70 postmenopausal women (age: 60.6±4.2 yrs., height: 154.9±5.2cm, body weight (BW) : 52.7±6.2kg; mean ±SD) was evaluated in relation to body composition (body fat mass (FM) : 17.3±3.9kg, lean body mass (LBM) : 35.3±3.6kg) . BMR was 1, 148±126kcal/day, 21.9±2.2kcal/kgBW/day, 32.7±3.2kcal kgLBM/day in all subjects. BMR (kcal/day) significantly correlated with BW (r=.635, p<0.001) and LBM (r=.598, p<0.001) . When divided into two groups, (lower %fat group (LF; <35%fat) and higher %fat group (HF; ≥35%fat) ), BW and FM were significantly higher in HF than in LF (BW: 56.6±6.4 vs 51.0±5.3 kg, FM: 21.7±2.8 vs 15.5±2.7 kg, p<0.001, respectively) . No difference was observed in LBM between the two groups (34.9±3.9 vs 35.5±3.5 kg) . BMR (kcal/kgBW/day) was lower in HF than in LF (21.0±1.8 vs 22.3±2.3, p<0.05), but HF group had higher BMR in terms of kcal/kgLBM/ day than LF (34.0±3.1 vs 32.1±3.1, p<0.05) . Multiple regression analysis was performed to predict BMR. A single predictor LBM and a pair of predictors LBM and FM explained 35.7% and 42.7% of the variance of BMR. This study suggested that a decrease in LBM is a major factor in affecting the reduction of BMR in postmenopausal women, whereas FM gained after menopause could be considered to have metabolic activity related to BMR.抄録全体を表示PDF形式でダウンロード (1096K) -
栗山 進一, 辻 一郎2003 年 52 巻 2 号 p. 199-205
発行日: 2003/04/01
公開日: 2010/09/30
ジャーナル フリーPDF形式でダウンロード (776K) -
佐藤 広徳, 三浦 朗, 坂井 学, 高本 登, 佐藤 陽彦, 福場 良之2003 年 52 巻 2 号 p. 207-217
発行日: 2003/04/01
公開日: 2010/09/30
ジャーナル フリーRecently, a long-term health concern has been identified in young Japanese women. These women have a high percentage of body fat despite a normal shape index indicator such as BMI. This condition is called marked obesity, and shows relative low lean body mass. Using an analogous determination, we investigated low percentage of muscle quantity (LM) in the extremities of young Japanese women (n=156) . The cross-sectional areas of muscle, subcutaneous fat, and bone were measured in the upper arm and thigh using ultrasonography. Extremity shape index (CSAt/L) was defined as the total extremity cross-sectional area (CSAt) divided by the length of the limb (L), Percent muscle in each extremity (% MA) was calculated from the ratio of muscle CSA to whole limb CSA. LM was defined as the percentage of muscle in the upper arm or thigh less than 1 SD below average and the limb shape index less than 1 SD above average. Nine of 91 subjects displayed LM for the upper arm. A similar proportion of subjects showed LM for the thigh (15/156) . The muscle mass and strength in the upper arm or thigh were compared between the subjects with LM and non-LM subjects with a similar shape index of extremity. There was a tendency towards lower muscle mass and muscle strength in the subjects with LM. From the same comparison, the subjects with LM showed a greater load on extremity muscles to sustain the body weight (i.e., body weight per unit of upper arm or thigh muscle CSA) . To mitigate the deleterious health consequences of low percent muscle quantity it is recommended that young Japanese women who display such a condition should participate in a resistance-training program.抄録全体を表示PDF形式でダウンロード (2743K) -
2003 年 52 巻 2 号 p. 219-226
発行日: 2003/04/01
公開日: 2010/09/30
ジャーナル フリーPDF形式でダウンロード (1071K) -
2003 年 52 巻 2 号 p. 227-229
発行日: 2003/04/01
公開日: 2010/09/30
ジャーナル フリーPDF形式でダウンロード (478K)
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