Evidence map›Paper›PMID 33907206›Full record

ArticleScientific reports2021

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

Yuichi Ogino, Hiroaki Kawamichi, Daisuke Takizawa, Sho K Sugawara, Yuki H Hamano, Masaki Fukunaga, Keiko Toyoda, Yusuke Watanabe, Osamu Abe, Norihiro Sadato and 2 more

Abstract read
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In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Yuichi Ogino *Department of Anesthesiology, Gunma University Graduate School of Medicine, 3-39-15 Maebashi, Gunma, 371-8510, Japan. oginoyuichi@me.com.ORCID 0000-0001-6508-7547
Hiroaki Kawamichi *Department of Anesthesiology, Gunma University Graduate School of Medicine, 3-39-15 Maebashi, Gunma, 371-8510, Japan.ORCID 0000-0002-6172-8906
Daisuke TakizawaDepartment of Anesthesiology, Japanese Red Cross Medical Center, 1-22 Hiroo, Shibuya-ku, Tokyo, 150-8935, Japan.
Sho K SugawaraNeural Prosthesis Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan.
Yuki H HamanoDivision of Cerebral Integration, Department of System Neuroscience, National Institute for Physiological Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan.
Masaki FukunagaDivision of Cerebral Integration, Department of System Neuroscience, National Institute for Physiological Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan.ORCID 0000-0003-1010-2644
Keiko ToyodaDepartment of Radiology, The Jikei University School of Medicine, 3-28-8 Nishi-Shimbashi, Minato-Ku, Tokyo, 105-864, Japan.ORCID 0000-0002-6022-0959
Yusuke WatanabeDepartment of Radiology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
Osamu AbeDepartment of Radiology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.ORCID 0000-0002-1180-2629
Norihiro SadatoDivision of Cerebral Integration, Department of System Neuroscience, National Institute for Physiological Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan.ORCID 0000-0002-9786-3907
Shigeru SaitoDepartment of Anesthesiology, Gunma University Graduate School of Medicine, 3-39-15 Maebashi, Gunma, 371-8510, Japan.
Shigeru FuruiDepartment of Radiology, Graduate School of Medicine, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

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.

Indexed as

BoxingPhysical Conditioning, HumanAdultBody Mass IndexCross-Sectional StudiesEfferent PathwaysHumansLongitudinal StudiesMagnetic Resonance ImagingMalePutamen

Identifiers

PMID33907206
PMCPMC8079439

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.