Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2012) 11, 83 - 88

Research article
Different Circulating Brain-Derived Neurotrophic Factor Responses to Acute Exercise Between Physically Active and Sedentary Subjects
Yu Nofuji1, Masataka Suwa2, Haruka Sasaki1, Atsushi Ichimiya1, Reiko Nishichi3, Shuzo Kumagai1, 
Author Information
1 Institute of Health Science, Kyushu University, Kasuga, Fukuoka, Japan
2 Faculty of Life Design, Tohoku Institute of Technology, Sendai, Miyagi, Japan
3 Department of Nursing, St. Mary's University, Kurume, Fukuoka, Japan

Shuzo Kumagai
✉ 6-1 Kasuga Park, Kasuga City, Fukuoka, 816-8580, Japan
Email: shuzo@ihs.kyushu-u.ac.jp
Publish Date
Received: 10-10-2011
Accepted: 19-12-2011
Published (online): 01-03-2012
 
 
ABSTRACT

Although circulating brain-derived neurotrophic factor (BDNF) level is affected by both acute and chronic physical activity, the interaction of acute and chronic physical activity was still unclear. In this study, we compared the serum and plasma BDNF responses to maximal and submaximal acute exercises between physically active and sedentary subjects. Eight active and 8 sedentary female subjects participated in the present study. Both groups performed 3 exercise tests with different intensities, i.e. 100% (maximal), 60% (moderate) and 40% (low) of their peak oxygen uptake. In each exercise test, blood samples were taken at the baseline and immediately, 30 and 60 min after the test. The serum BDNF concentration was found to significantly increase immediately after maximal and moderate exercise tests in both groups. In maximal exercise test, the pattern of change in the serum BDNF concentration was different between the groups. While the serum BDNF level for the sedentary group returned to the baseline level during the recovery phase, the BDNF levels for the active group decreased below the baseline level after the maximal exercise test. No group differences were observed in the pattern of plasma BDNF change for all exercise tests. These findings suggest that regular exercise facilitates the utilization of circulating BDNF during and/or after acute exercise with maximal intensity.

Key words: Serum BDNF, plasma BDNF, acute exercise


           Key Points
  • In maximal exercise test, the pattern of change in the serum BDNF concentration was different between the groups.
  • While the serum BDNF level for the sedentary group returned to the baseline level during the recovery phase, the BDNF levels for the active group decreased below the baseline level after the maximal exercise test.
  • No group differences were observed in the pattern of serum BDNF change for moderate or low exercise tests.
  • No group differences were observed in the pattern of plasma BDNF change for all exercise tests.
 
 
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