BLOOD FLOW AFTER CONTRACTION OF SHORT DURATION REACHES ITS PEAK BY 3^<rd> CARDIAC CYCLE(Proceedings of The 8^<th> Asian Federation of Sports Medicine Congress 2005 Tokyo)

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概要

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• The purpose of this study was to elucidate how long it takes to reach peak blood flow after muscle contractions in consideration of the cardiac cycle. Seven healthy female subjects performed two successive dynamic plantar flexions of 1-s duration at 30, 50 and 70% of maximal voluntary contraction (MVC). Based upon the blood flow response after a single contraction, we set up intervals during two successive contractions each corresponding to 10% (10I), 30% (30I) and 50% (50I) of the time required to reach peak blood flow. Upon cessation of contraction, the popliteal artery blood flow (Qpa) increased progressive, beat-by-beat increase and peaked by the 5^<th> cardiac cycle, for all conditions. The highest peak blood flow among the cardiac cycle was at 3^<rd> cycle in overall data. Peak Qpa values reached after exercise did not differ among intervals, whereas peak Qpa value attained after exercise was significantly greater in 50 and 70%MVC than 30%MVC (p<0.05). The result indicates that the augmentation of the Qpa after exercise with short duration differed with the exercise intensity but the timing for reaching peak post-exercise value did not differ in terms of the number of cardiac cycles.

• 日本体力医学会の論文
• 2006-10-01

著者

• Kagaya Atsuko

  Research Institute of Physical Fitness, Japan Women's College of Physical Education

• HAMAOKA TAKAFUMI

  National Institute of Fitness and Sports in Kanoya

• Kagaya A

  Deptartment Of Preventive Medicine And Public Health Tokyo Medical University

• Kagaya Atsuko

  Japan Women's College Of Physical Education Research Institute Of Physical Fitness

• Kagaya Atsuko

  Research Institu Te Of Physical Fitness Japan Women's College Of Physica I Educatio

• Kagaya Atsuko

  Graduate School Of Sports Science Research Institute Of Physical Fitness Japan Women's College

• SHIMIZU Shizuyo

  Research Institute of Physical Fitness, Japan Women's College of Physical Education

• OHMORI FUMIKO

  Research Institute of Physical Fitness, Japan Women's College of Physical Education

• Ohmori Fumiko

  Research Institute Of Physical Fitness Japan Women's College Of Physical Education:national Ins

• Shimizu Shizuyo

  Research Institute Of Physical Fitness Japan Women's College Of Physical Education:institute Of

• Shimizu Shizuyo

  Research Institute Of Physical Fitness Japan Women's College Of Physical Education

• Ohmori Fumiko

  Japan Women's College Of Physical Education Research Institute Of Physical Fitness

• Ohmori Fumiko

  Research Institute Of Physical Fitness Japan Women's College Of Physical Education

• Shimizu Sizuyo

  Research Institute Of Physical Fitness Japan Women's College Of Physical Education:institute Of

• Shimizu Sizuyo

  Research Institute Of Physical Fitness Japan Women's College Of Physical Education:institute Of Physical Education Keio University

• HAMAOKA Takafumi

  National Institute of Animal Health, 3-1-1 Kannondai, Tsukuba-shi, Ibaraki 305-0856, Japan

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