体力科学
Online ISSN : 1881-4751
Print ISSN : 0039-906X
ISSN-L : 0039-906X
51 巻 , 4 号
選択された号の論文の6件中1~6を表示しています
  • KAZUYUKI OKA, SHINNOSUKE TAKAYANAGI, MASUO MURO
    2002 年 51 巻 4 号 p. 357-366
    発行日: 2002/08/01
    公開日: 2010/09/30
    ジャーナル フリー
    A small amount of the myotube-like structures (chained nuclei) are present in skeletal muscle independently of disease. These experiments show that the incidence of the myotube-like structure increases with the advance of age in mice. Moreover, it is shown that the DNA in the myotube-like structure is not fragmented. That is, the myotube-like structures were TUNEL (Terminal deoxynuc-leotidyl transferase (TdT) -mediated dUTP-biotin Nick-End labeling) negative. Moreover, we detected the polyadenylated mRNA around the myotube-like structure by using an in situ hybridization technique. This suggests that the myotube-like structure has transcription activity.
    This report indicates that the myotube-like structure is a useful indicator of aging in skeletal muscle.
  • 坂井 智明, 中村 容一, 重松 良祐, 伊佐地 隆, 田中 喜代次
    2002 年 51 巻 4 号 p. 367-375
    発行日: 2002/08/01
    公開日: 2010/09/30
    ジャーナル フリー
    The purpose of this study was to implement a community-based exercise program for postdischarge stroke survivors in the public health center. The subjects were fourteen male stroke survivors with chronic upper and lower limb paresis (63.0±5.9 years) . The study design was quasiexperimental, with each subject serving as his own control. All subjects have to meet following inclusion criteria: (1) first stroke resulting in hemiplegia, (2) at least 6 months post-stroke, (3) able to walk independently, and (4) free from grave aphasia, apraxia, agnosia, or disequilibrium. A 25-week (2 deek) training program consisted of a warm-up, lower and upper extremity muscle strengthening, recreational activities, walking training, and a cool down. The duration of this program is approximately 70 minutes a day. The outcome measure was the 12 functional fitness test items and questionnaire in activities parallel to daily living. Significant improvements (P<0.05) were found for handgrip strength, knee extension strength, tandem balance, standing and sitting, and timed up and go in the treatment period. However, the scores in activities parallel to daily living were not significant. These results suggest that they may attain significant functional improvements in response to implementation of a community-based exercise program. In conclusion, post-discharge stroke survivors can improve their functional fitness status by participating in a community-based exercise program.
  • KAZUO TSUYUKI, KOHTETSU CHOH, HIROKI HASE, YASUO KIMURA, ATSUO KASUGAI ...
    2002 年 51 巻 4 号 p. 377-384
    発行日: 2002/08/01
    公開日: 2010/09/30
    ジャーナル フリー
    This study examined the effects of physical training on exercise hyperpnea (EH) in patients on hemodialysis (HD) . In baseline, 17 (trained group) and 12 (control group) patients on HD performed symptom limited exercise test using a treadmill. Trained group, but not control group, exercised 2 to 3 times weekly on non-dialysis days under medical supervision. Exercise testing was repeated 20 weeks after the baseline. Ventilatory response to exercise was evaluated using the regression slope relating minute ventilation (VE) to carbon dioxide output (VCO2 ) during incremental exercise (VE/VCO2 slope) below the point of respiratory compensation. In trained group, VE, oxygen uptake ( VO2) and VCO2 at peak exercise increased and VE/VO2 and VE/VCO2 decreased after physical training, respectively. No change was observed in control group. VO2 at the anaerobic threshold increased in trained group, but not in control group. The post training VE/VCO2 slope (33.9±5.0) was significantly (p<0.05) lower than the pre-training slope (38.0± 4.8) and remained constant in control group. In trained group, changes in the VE/VCO2 slope correlated with those in peak VO2 (p<0.05) . These results suggest that physical training decreases EH in patients on HD and that it correlates with changes in exercise tolerance.
  • 足立 博子, 足立 哲司, 豊岡 示朗
    2002 年 51 巻 4 号 p. 385-391
    発行日: 2002/08/01
    公開日: 2010/09/30
    ジャーナル フリー
    ウォーキングスピードの違いとエネルギー代謝の関連について検討した.対象者は, 健康な中年女性7名 (35~50歳) であり, 3種類のスピード (経済: 1km当りのエネルギー消費量が最小となるスピード, 快適: 被験者が気持ちよいと答えたスピード, 速歩: 被験者が無理のない範囲で最も速く歩けると答えたスピード) での60分間のトレッドミルウォーキングを課して代謝反応と血中脂質を測定し, 次のような結果を得た.
    1) 60分間のトレッドミルウォーキングを実施したスピードとそれぞれのスピードにおける%VO2maxと心拍数は, 経済が76m/min (41%VO2max, 96beats/min) , 快適で90m/min (49%VO2max, 110beats/min) , 速歩は106m/min (67%VO2max, 139beats/min) であった.
    2) 5分ごとに見た脂肪によるエネルギー消費量は, 3スピードとも経時的に増加したが, 特に速歩スピードでは, 運動開始後の10分目で1.1kcal/minであった脂肪によるエネルギー消費量が運動終了時には2.5kcal/minと2倍以上に達した.
    3) 60分間ウォーキングでの総エネルギー消費量はスピードに伴い増加した.脂肪によるエネルギー消費量は, 速歩が109kcalで最も高い値を示したが, 快適: 99kcal, 経済: 92kcalとの間に有意差は認められなかった.
  • 矢野 博己, 松嵜 裕美, 吉良 尚平
    2002 年 51 巻 4 号 p. 393-396
    発行日: 2002/08/01
    公開日: 2010/09/30
    ジャーナル フリー
  • 2002 年 51 巻 4 号 p. 397-405
    発行日: 2002/08/01
    公開日: 2010/09/30
    ジャーナル フリー
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