Enhanced structural connectivity within the motor loop in professional boxers prior to a match.

Autor: Ogino Y; Department of Anesthesiology, Gunma University Graduate School of Medicine, 3-39-15 Maebashi, Gunma, 371-8510, Japan. oginoyuichi@me.com., Kawamichi H; Department of Anesthesiology, Gunma University Graduate School of Medicine, 3-39-15 Maebashi, Gunma, 371-8510, Japan., Takizawa D; Department of Anesthesiology, Japanese Red Cross Medical Center, 1-22 Hiroo, Shibuya-ku, Tokyo, 150-8935, Japan., Sugawara SK; Neural Prosthesis Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan., Hamano YH; Division of Cerebral Integration, Department of System Neuroscience, National Institute for Physiological Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan., Fukunaga M; Division of Cerebral Integration, Department of System Neuroscience, National Institute for Physiological Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan., Toyoda K; Department of Radiology, The Jikei University School of Medicine, 3-28-8 Nishi-Shimbashi, Minato-Ku, Tokyo, 105-864, Japan., Watanabe Y; Department of Radiology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan., Abe O; Department of Radiology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan., Sadato N; Division of Cerebral Integration, Department of System Neuroscience, National Institute for Physiological Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan., Saito S; Department of Anesthesiology, Gunma University Graduate School of Medicine, 3-39-15 Maebashi, Gunma, 371-8510, Japan., Furui S; Department of Radiology, Graduate School of Medicine, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2021 Apr 27; Vol. 11 (1), pp. 9015. Date of Electronic Publication: 2021 Apr 27.
DOI: 10.1038/s41598-021-88368-4
Abstrakt: Professional boxers train to reduce their body mass before a match to refine their body movements. To test the hypothesis that the well-defined movements of boxers are represented within the motor loop (cortico-striatal circuit), we first elucidated the brain structure and functional connectivity specific to boxers and then investigated plasticity in relation to boxing matches. We recruited 21 male boxers 1 month before a match (Time1) and compared them to 22 age-, sex-, and body mass index (BMI)-matched controls. Boxers were longitudinally followed up within 1 week prior to the match (Time2) and 1 month after the match (Time3). The BMIs of boxers significantly decreased at Time2 compared with those at Time1 and Time3. Compared to controls, boxers presented significantly higher gray matter volume in the left putamen, a critical region representing motor skill training. Boxers presented significantly higher functional connectivity than controls between the left primary motor cortex (M1) and left putamen, which is an essential region for establishing well-defined movements. Boxers also showed significantly higher structural connectivity in the same region within the motor loop from Time1 to Time2 than during other periods, which may represent the refined movements of their body induced by training for the match.
Databáze: MEDLINE
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