INFLUENCE OF RUNNING SPEED AND EXERCISE DURATION ON BLOOD GLUCOSE THRESHOLD DURING LONG-DISTANCE RUNNING
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- NAKAMURA KAZUTERU
- <i>Comprehensive Human Sciences, University of Tsukuba</i>
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- SENGOKU YASUO
- <i>Research Institute of Sports Science, Heisei International University</i>
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- NAKAGAKI KOHEI
- <i>Comprehensive Human Sciences, University of Tsukuba</i>
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- YOSHIOKA TOSHITSUGU
- <i>Sports and Physical Education Center, University of Tsukuba</i>
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- OGATA HITOMI
- <i>Graduate School of Education, University of Tokyo, JSPS Research Fellow</i>
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- NABEKURA YOSHIHARU
- <i>Comprehensive Human Sciences, University of Tsukuba</i>
Bibliographic Information
- Other Title
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- 長距離走行中の速度と時間が血糖上昇閾値に与える影響
- チョウキョリ ソウコウ チュウ ノ ソクド ト ジカン ガ ケットウ ジョウショウ イキチ ニ アタエル エイキョウ
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Description
This study was intended to clarify 1) the difference of the exercise intensity at blood lactate threshold (LT) and blood glucose threshold (GT), 2) the effect of exercise duration on the LT and GT during two sets of incremental running test. Ten male runners (age 25.0±3.2 yr, height 171.2±5.5 cm, body mass 57.9±4.0 kg, VO2max 64.6±3.0 ml/kg/min) completed two sets of incremental running test (each set was set to run ten stages at 60-90% VO2max). Second set was repeated after 8 min recovery. LT and GT speed were investigated at the first set. Lactate minimum (LM) and glucose minimum (GM) speed were selected where the blood lactate and glucose concentration were at the lowest during the second set. Using the indirect calorimetry (VO2, VCO2), fat and carbohydrate oxidation rates were calculated. GT was observed in all runners. VO2 and energy expenditure were similar between the two incremental running tests, however, fat oxidation was significantly higher and carbohydrate oxidation was significantly lower during the first half of the second set. This change was regarded as the influence of the exercise duration in the first set. Furthermore, GM speed was significantly lower than GT speed, but LM speed and LT speed were not different. It was considered that the shift of GT was affected by the substrate utilization change during prolonged exercise.
Journal
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- Japanese Journal of Physical Fitness and Sports Medicine
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Japanese Journal of Physical Fitness and Sports Medicine 59 (1), 119-130, 2010
The Japanese Society of Physical Fitness and Sports Medicine
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Details 詳細情報について
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- CRID
- 1390282679898296064
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- NII Article ID
- 10025945073
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- NII Book ID
- AN00137986
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- ISSN
- 18814751
- 0039906X
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- NDL BIB ID
- 10601912
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed