2023 Fiscal Year Final Research Report
Factor Extraction of Bioelectrical Signals Correlated with Subjective Values Containing Ambiguity
| Project/Area Number |
21K04108
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 21040:Control and system engineering-related
|
|---|
| Research Institution | Tottori University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2021-04-01 – 2024-03-31
|
| Keywords | 筋活動電位 / 疲労感 / ファジィ線形回帰モデル / 主観的価値 / 客観的価値 / 身体的特徴 |
|---|
| Outline of Final Research Achievements |
The purpose of this study was to estimate the sensation of "tiredness" felt by a subject based on the electromyograms obtained when muscles are subjected to a load. Because the sensation contains ambiguity, mathematical formulas based on fuzzy theory were used.
The estimation of the ambiguous sensation of 'tiredness' from several characteristically separated electromyograms in 20 subjects by various types of signal processing resulted in a correct response rate of about 60%.
Note that, due to the nature of tiredness, over-estimating fatigue is valid in operation, and if these are also included in the correct answers, the percentage of correct answers is more than or equal to 70%.
|
| Free Research Field |
生体機能システム工学
|
| Academic Significance and Societal Importance of the Research Achievements |
人間が何となく感じる主観的な感覚を数量にて表現できることで，自身の意思を他者に伝えたり，自身の感覚に適したサービスを受けることが可能となる．本研究成果として得られた筋に負荷を掛けた際に感じる疲労感について数量的に表現することは，トレーニング，エクササイズ，リハリビテーションといった身体に負荷を掛けるサービスにおいて，自身の意思を正確に共有できる可能性を示したものである．また，学術的には疲労感という感覚とデータとして測定できる生理学的指標との関係性を導くことで，人の感覚想起の元となるものをデータに基づいて明らかにしていく1つの方法論を提案したところに意義がある．
|
