巻号一覧
54 巻, 4 号
選択された号の論文の7件中1～7を表示しています
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原著
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吉田 祐子, 熊谷 修, 杉浦 美穂, 古名 丈人, 吉田 英世, 金 憲経, 新開 省二, 渡辺 修一郎, 鈴木 隆雄2005 年 54 巻 4 号 p. 295-304
発行日: 2005年
公開日: 2006/12/01
ジャーナル フリーBackground: High heart rate (HR) has been associated with an increased risk of cardiovascular disease and mortality due to all causes. The present study was conducted to examine the effect of exercise adherence on longitudinal changes in resting heart rate among a population of community-dwelling elderly.
Methods: The subjects were 133 men and 209 women aged 65 and older who participated in a baseline survey in August 1992 and were subsequently followed annually for 8 years. Resting HR was measured in the sitting position. The independent variable was the longitudinal change in differences of HR (Δ) from 1996 to 2000. Dependent variables were age, heart rate, smoking habit, TMIG index of competence score, and states of exercise adherence during the period 1992-1996.
Results: Multiple regression analysis showed that heart rate in 1996 and smoking in men, and heart rate, TMIG index of competence score, and exercise adherence during the period 1992-1996 in women were significantly associated with longitudinal change in HR.
Conclusion: Exercise adherence reduced the increase in HR of elderly women. These results suggest the importance of exercise adherence in elderly women.抄録全体を表示PDF形式でダウンロード (259K) -
林 容市, 田中 喜代次, 曽根 博仁, 久野 譜也2005 年 54 巻 4 号 p. 305-313
発行日: 2005年
公開日: 2006/12/01
ジャーナル フリーExcess accumulation of visceral fat is reported to promote insulin resistance. However, it is not known whether or not insulin resistance improves without reducing visceral fat. Recent studies have reported, however, that exercise can improve insulin resistance. The aim of this study was to examine the effects of low-intensity exercise training on insulin resistance and visceral fat. Participants were 26 older adults, aged 63.9 ± 3.9 years, who were divided into two groups based on visceral fat area (VFA, cm2) measured by X-ray computed tomography. Eight men (153.4 ± 49.4 cm2) and 5 women (151.9 ± 45.5 cm2) were classified as having a VFA of 100 cm2 or more (VFO group), and 6 men and 6 women as having less than 100 cm2 (C group). After a 14-week exercise training program, VFA in women of the VFO group was significantly reduced (126.3 ± 40.0 cm2) ; though it did not reach 100 cm2. However, homeostasis model assessment (HOMA-IR), an index of insulin resistance, significantly improved from 4.6 ± 1.9 to 2.2 ± 1.1 among women in the VFO group. These data suggest that improvements in insulin resistance for women with relatively high VFA are weakly associated with exercise-induced reductions in VFA. Based on these results, the activation of skeletal muscle with physical activity has the possibility of being independently associated with an improvement in insulin resistance without a significant decrease of VFA.抄録全体を表示PDF形式でダウンロード (223K) -
中島 剛, 遠藤 隆志, 坂本 将基, 田添 歳樹, 小宮山 伴与志2005 年 54 巻 4 号 p. 315-323
発行日: 2005年
公開日: 2006/12/01
ジャーナル フリー1. 健常被験者7名を対象として, 刺激条件, 特に刺激パルス数 (1, 2, 3, 5発), 刺激時間幅 (0.1, 0.5, 1 ms) および刺激間隔 (固定 ; 1, 2, 3 Hz, ランダム ; 0.7～2 Hz) に着目して皮膚反射を第一背側骨筋に誘発し, 短 (I1, ピーク潜時～45～60 ms), 中 (E2～60～90 ms) および長潜時 (I2, ～90～120 ms ; E3, ～120～180 ms) 反射効果の変化を調べた.
2. 2元配置分散分析の結果, 刺激パルス数の増加に伴うI1, I2およびE3振幅の増大は有意であることが明らかになった. (全てp<0.001). 一方, E2では刺激パルス数に依存した増大は認められなかった (p>0.05). また, E2とI2では刺激指に依存して各皮膚反射成分の変化量が有意に異なることが明らかになった (両者ともにp>0.01).
3. I1, E2, I2およびE3において刺激の持続時間に依存した変化は認められなかった. また, 刺激間隔や提示方法の違いによる有意な変化も認められなかった.
4. これらの結果は, 各反射成分を中継する介在ニューロンの試験刺激の時間的加重に対する感受性が異なること, ならびに同一の電気刺激強度を用いた場合には試験刺激の時間幅が異なってもほぼ同一の皮膚求心性線維を賦活している可能性を示唆する.
5. 実践応用として, 刺激パルス数2から5発とし, 3 Hzの刺激間隔で痛覚をともなわない電気刺激を用いることにより, 筋疲労による潜在的な影響を低減しつつ, 皮膚反射を効率的に誘発することが可能と考えられた.抄録全体を表示PDF形式でダウンロード (264K) -
大河原 一憲, 田中 喜代次, 中塘 二三生, 中田 由夫, 片山 靖富, 山田 真生, 櫻井 進, 谷川 武2005 年 54 巻 4 号 p. 325-333
発行日: 2005年
公開日: 2006/12/01
ジャーナル フリーA number of studies have shown that sleep disordered breathing (SDB) has a strong relation with obesity. The purpose of this study was to examine the effect of a short-term weight-loss program in obese men with SDB. In our 14-week weight-loss program, forty-one obese men (mean±SD, age ; 49.6±10.8 yr, body mass index ; 27.9±2.5 kg/m2) were assigned to 2 subgroups : diet only (DO ; n=19) and diet plus aerobic exercise (DE ; n=22). 2%, 3%, and 4% oxygen desaturation index (ODI) were measured by pulse oximetry before and after the weight-loss program. Weight and %fat significantly (p<0.05) decreased in the total subject pool consisting of DO plus DE (weight ; -8.4±3.5 kg, %fat ; -7.5±3.5%). 2%, 3%, and 4% ODI significantly decreased by -3.46±5.01 event/hour, -2.37±3.57 event/hour, and -1.99±2.84 event/hour, respectively. Significant correlations were found between 2%, 3%, and 4% ODI at baseline and changes of 2%, 3%, and 4% ODI during the weight-loss program (2% ODI ; r=0.48, 3% ODI ; r=0.51, 4% ODI ; r=0.67). Weight loss and %fat loss did not differ significantly between DO and DE (DO : -7.6±3.2 kg, -6.8±3.2%, DE : -9.2±3.7 kg, -8.1±3.7%). The increase in maximal oxygen uptake was slightly larger for DE (4.7±4.6 ml/kg/min) compared to DO (2.5±3.3 ml/kg/min), but there was no significant interaction. Changes of 2%, 3%, and 4% ODI did not differ significantly between groups. These results suggest that for obese men with SDB, the weight-loss program is an effective method, leading to improvement in SDB, although the combination of aerobic exercise to diet may not produce additional effects to SDB, compared with the diet only.抄録全体を表示PDF形式でダウンロード (292K)
記事
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2005 年 54 巻 4 号 p. 335-339
発行日: 2005年
公開日: 2006/12/01
ジャーナル フリーPDF形式でダウンロード (170K) -
2005 年 54 巻 4 号 p. 340-345
発行日: 2005年
公開日: 2006/12/01
ジャーナル フリーPDF形式でダウンロード (131K) -
2005 年 54 巻 4 号 p. 346-351
発行日: 2005年
公開日: 2006/12/01
ジャーナル フリーPDF形式でダウンロード (159K)
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