Bag Carrying Method during Level Walking Affects Perceived Exertion Ratings without Altering Energy Cost, Oxygen Consumption, and Heart Rate in Healthy Adults: A Randomized Crossover Trial

Hiroto Honda(Hiroto Honda ),Reina Maeda(Reina Maeda ),Suguru Ando(Suguru Ando ),Kenji Shinbo(Kenji Shinbo ),Wataru Nanikawa(Wataru Nanikawa ),Masaki Iwamura(Masaki Iwamura ),Yoshihiro Yamashina(Yoshih 사피엔시아 2020 Exercise Medicine Vol.4 No.-

Objectives: Little is known regarding the associations between Borg’s rating of perceived exertion (RPE), cardiopulmonary responses, and carrying bags while level walking. We investigated the changes in RPE and cardiopulmonary responses, including energy cost (EC), oxygen consumption (VdotO₂), and heart rate (HR), when walking with a bag. Methods: This randomized crossover study included 10 healthy adults (aged 21–22 years). Four days of experiments were performed at intervals of 1–2 weeks. The participants walked on a level treadmill while carrying a bag with a strap weighting 5 kg, placed diagonally on their shoulders (DS), vertically on their shoulders (VS), vertically in one hand (VH), and on their backs using both shoulders (BS) for 20 min. Walking speed was stable among all experiments, and was set to the participants’ preferred speed. Results: No significant differences between bag carrying methods regarding EC, VdotO₂, and %HRreserve (based on HR) were observed, whereas RPE respiratory (RPE-resp) and RPE leg muscle (RPE-leg) scores varied based on bag carrying method used. RPE-resp score was significantly lower for DS and BS than VH (both p < 0.0083); however, no significant difference was observed when each RPE-leg score was compared. Conclusions: We found that RPE-resp score varied, whereas no changes in EC, VdotO₂, and HR were observed in healthy adults while walking with different bag carrying methods. Additionally, of all bag carrying methods assessed, the highest RPE-resp score was observed when individuals carried a bag with one-hand at their side.

The Impact of Multiple Roles on Psychological Distress among Japanese Workers

Honda, Ayumi,Abe, Yasuyo,Date, Yutaka,Honda, Sumihisa Occupational Safety and Health Research Institute 2015 Safety and health at work Vol.6 No.2

Background: There has been considerable interest in Japanese society in the problem of work-related stress leading to depressive symptoms, and an increasing number of primary houseworkers maintain paid employment. The purpose of this study was to examine the differential impact of multiple roles associated with psychological distress among Japanese workers. Methods: We studied 722 men and women aged 18-83 years in a cross-sectional study. The K10 questionnaire was used to examine psychological distress. Results: The proportion of participants with psychological distress was higher in women (17.8%) compared with men (11.5%). Having three roles significantly decreased the risk of psychological distress [women: odds ratio (OR), 0.37-fold; men: OR, 0.41] compared with only one role. In working married women, there was significantly less psychological distress (OR, 0.27), and those with childrearing or caregiving responsibilities for elderly parents had significantly less psychological distress (OR, 0.38) than those with only an employment role. Similarly, working married men who had childrearing or caregiving responsibilities for elderly parents had significantly less psychological distress (OR, 0.41) than those who had only an employment role. Conclusion: The present study demonstrated that participants who had only an employment role had an increased risk of psychological distress. The degree of psychological distress was not determined solely by the number of roles. It is important to have balance between work and family life to reduce role conflict and/or role submersion, which in turn may reduce the risk of psychological distress.

Work-related Stress, Caregiver Role, and Depressive Symptoms among Japanese Workers

Honda, Ayumi,Date, Yutaka,Abe, Yasuyo,Aoyagi, Kiyoshi,Honda, Sumihisa Occupational Safety and Health Research Institute 2014 Safety and health at work Vol.5 No.1

Background: In Japan, more than 60% of employees are reported to suffer from anxiety and stress. Consequently, Japanese society has begun to address such important issues as psychogenic disability and job-related suicide. Furthermore, given the aging of society and the surge in the number of elderly people requiring care, it is necessary to adequately and proactively support employees who care for their elderly relatives. The purpose of the present study was to investigate caregiver burden in caring for elderly relatives and work-related stress factors associated with mental health among employees. Methods: We studied 722 men and women aged 18-83 years in a cross-sectional study. The K10 questionnaire was used to examine mental health status. Results: The proportion of participants with a high K10 score was 15% (n = 106). Having little conversation with their supervisor and/or coworkers significantly increased the risk of depression [odds ratio (OR) 1.8], as did high job overload (OR 2.7) and job dissatisfaction (OR 3.8), compared with employees who frequently conversed with their supervisor and/or coworkers. Caring for elderly relatives as a prominent characteristic of an employee was a significant risk factor for depression (OR 2.1). Conclusion: The present study demonstrated that employees who were caring for elderly relatives were significantly associated with an increased risk of depression. To prevent depressive disorders, it may be important to focus on reducing the work-caregiving role conflict, as well as enhancing employees' job control and better rewarding their efforts in the workplace.

Hybrid Steering Model depending on Driver’s Gazing Point to detect inattentive driving using Machine Learning

Takuya Honda,Nobutomo Matsunaga,Hiroshi Okajima 제어로봇시스템학회 2019 제어로봇시스템학회 국제학술대회 논문집 Vol.2019 No.10

The modeling of driving behaviors is important to analyze and design comfortable functions for the driving systems. The estimation method of the non-linear steering model using the eye tracking information was studied using the heuristic search algorithm. However, the model was limited to gaze and the inattentive driving was not modeled. It is considered that the steering model is consists of a hybrid steering model that switches the controllers according to the eye tracking information is classified in the effective/peripheral viewing field. In this paper, an estimation method of the hybrid system focusing on the effective visual field during driving is proposed. The hybrid model is constructed by steering model depending on the gazing distance and simple on-off controller. This estimation algorithm consists of 2-steps; clustering which classifies data by k-means method and the estimation of the parameters by Particle Swarm Optimization. The experiment with the long driving course consisting of five-curves and straight lines is demonstrated by HONDA driving simulator.

Work-related Stress, Caregiver Role, and Depressive Symptoms among Japanese Workers

Ayumi Honda,Yutaka Date,Yasuyo Abe,Kiyoshi Aoyagi,Sumihisa Honda 한국산업안전보건공단 산업안전보건연구원 2014 Safety and health at work Vol.5 No.1

BackgroundIn Japan, more than 60% of employees are reported to suffer from anxiety and stress. Consequently, Japanese society has begun to address such important issues as psychogenic disability and job-related suicide. Furthermore, given the aging of society and the surge in the number of elderly people requiring care, it is necessary to adequately and proactively support employees who care for their elderly relatives. The purpose of the present study was to investigate caregiver burden in caring for elderly relatives and work-related stress factors associated with mental health among employees. MethodsWe studied 722 men and women aged 18–83 years in a cross-sectional study. The K10 questionnaire was used to examine mental health status. ResultsThe proportion of participants with a high K10 score was 15% (n = 106). Having little conversation with their supervisor and/or coworkers significantly increased the risk of depression [odds ratio (OR) 1.8], as did high job overload (OR 2.7) and job dissatisfaction (OR 3.8), compared with employees who frequently conversed with their supervisor and/or coworkers. Caring for elderly relatives as a prominent characteristic of an employee was a significant risk factor for depression (OR 2.1). ConclusionThe present study demonstrated that employees who were caring for elderly relatives were significantly associated with an increased risk of depression. To prevent depressive disorders, it may be important to focus on reducing the work-caregiving role conflict, as well as enhancing employees' job control and better rewarding their efforts in the workplace.

The Impact of Multiple Roles on Psychological Distress among Japanese Workers

Ayumi Honda,Yasuyo Abe,Yutaka Date,Sumihisa Honda 한국산업안전보건공단 산업안전보건연구원 2015 Safety and health at work Vol.6 No.2

Background: There has been considerable interest in Japanese society in the problem of work-related stress leading to depressive symptoms, and an increasing number of primary houseworkers maintain paid employment. The purpose of this study was to examine the differential impact of multiple roles associated with psychological distress among Japanese workers. Methods: We studied 722 men and women aged 18e83 years in a cross-sectional study. The K10 questionnaire was used to examine psychological distress. Results: The proportion of participants with psychological distress was higher in women (17.8%) compared with men (11.5%). Having three roles significantly decreased the risk of psychological distress [women: odds ratio (OR), 0.37-fold; men: OR, 0.41] compared with only one role. In working married women, there was significantly less psychological distress (OR, 0.27), and those with childrearing or caregiving responsibilities for elderly parents had significantly less psychological distress (OR, 0.38) than those with only an employment role. Similarly, working married men who had childrearing or caregiving responsibilities for elderly parents had significantly less psychological distress (OR, 0.41) than those who had only an employment role. Conclusion: The present study demonstrated that participants who had only an employment role had an increased risk of psychological distress. The degree of psychological distress was not determined solely by the number of roles. It is important to have balance between work and family life to reduce role conflict and/or role submersion, which in turn may reduce the risk of psychological distress.

[Commentary] Bier-bearing “Inferiors” and the “Skin” of the Community in Modern and Contemporary Village Society: Cases from Southern Gyeonggi Province by Ahn Seung Taik

( Honda Hiroshi ) 서울대학교 사회과학대학 인류학과 2022 Korean Anthropology Review Vol.6 No.-

ティームティーチングにおける非母語話者教師の要件-韓国四年制大学の教養日本語授業を対象として-

Honda Miho 한국일본어학회 2015 日本語學硏究 Vol.0 No.43

This study aims to examine what requirements of nonnative Japanese teachers (NNT) are needed to be an ideal teacher in a team teaching context. This research was conducted in a team teaching class which involved a nonnative Japanese teacher. 294 Korean college students who had taken a Japanese class were asked to complete questionnaires regarding the requirements of NNT. They were also divided into five groups according to their Japanese learning experience. Data were analyzed by factor analysis and independent one-way ANOVA. The findings revealed that three factors were extracted: consideration of zero beginners, effective teaching skills, and expertise as a Japanese teacher. The independent one-way ANOVA results showed that there were no significant differences in consideration of importance for each factor between five groups even though differences in the mean were found. In other words,regardless of the students' Japanese learning experience, five groups perceived that three factors were needed for NNT. 본 연구에서는 대학에서 실시되고 있는 교양일본어의 팀티칭에 초점을 맞추고, 수업을 하는 비모국어화자교사에게 학습자는 어떤 요건을 요구하고 있을지에 대해서 인자분석을 이용하여 분석하고 학습자가 요구하는 이상적인 TT에 있어서의 교사 모델을 제시했다. 또한 학습자가 요구하는 교사의 요건항목이 모든 학습자에게 지지를 받고 있을지를 확인하기 위해서 학습자를 학습경력별로 분류하고 일원배치 분산분석에 의해 집단 간의 차이를 검증했다.분석의 결과, 학습자가 요구하는 NNT의 요건으로서 「제로 초급자에의 배려」 「효율적 수업 실천 능력」 「일본어교원으로서의 전문성」의 3개의 인자가 추출되었다. 그 다음, 학습경력별로 각각의 인자에 있어서의 중요도의 차이를 검증한 결과 평균치에서는 1년 이상 2년미만의 학습경력을 가진 집단과 3년 이상의 학습경력을 가진 집단 간에 차이가 보였지만 분산분석에 있어서 집단 간에 유의한 차이는 보이지 않았다는 결과를 얻었다. 즉, 인자분석으로 밝혀진 NNT의 요건은 학습자의 학습경력에 관계없이 모든 학습자가 추구하는 요건인 것이 검증되었다.

ティームティーチングにおける母語話者教師の要件 -韓国四年制大学の教養日本語授業を対象として-

Honda Miho 한국일어교육학회 2015 일본어교육연구 Vol.0 No.33

This study aims to examine what requirements native Japanese teachers (NT) are needed to be an ideal teacher in a team teaching context. This research was conducted in a team teaching class which involved a native Japanese teacher. 294 Korean college students who had taken a Japanese class were asked to complete questionnaires regarding requirements of NT. Data were analyzed by factor analysis and one-way ANOVA. The findings revealed that five factors were extracted: consideration of the learners, ability for classroom administration, pronunciation and conversation education ability, ability for culture education, ability for progress of the class. As a result of the one-way ANOVA, a significantly different thing was shown with the "ability for progress of the class" among the five groups. Significant differences was found between learners who had been studying Japanese for more than three years and those with less than three years experience. In addition,looking at an earlier studies showed as that the "ability for culture education" was a requirement of a NT and was particularly important in TT. 本研究では、大学で行われている教養日本語におけるティー厶ティーチング(以下、TT)に焦点を当て、授業 を行う母語話者教師(以下、NT)に学習者はどのような要件を求めているかについて、因子分析を用いて明ら かにし、学習者の求める理想的なTTにおける母語話者教師モデルを示した。さらに、抽出された教師の要件 が、全ての学習者に支持されているかを検証するために、学習者を学習歴別に分類し、分散分析により集団 間の差を検証した。 分析の結果、学習者が求めるNTの要件として、Ⅰ「学習者への配慮」、Ⅱ「教室運営能力」、Ⅲ「発音·会話 教育能力」、Ⅳ「文化教育能力」、Ⅴ「授業の進行能力」の5つの因子が抽出された。さらに、学習歴別の集団 間の差を分散分析により検証した結果、第5因子において学習歴3年未満の学習者と3年以上の学習者の間で 有意差が見られた。このことから、第1因子から第4因子は全ての学習者に支持され、第5因子は学習歴が3年 未満の学習者には同等に支持される要件であることがわかった。 さらに、先行研究との比較により、「文化教育能力」が教養日本語においてTTを行うNTに特に求められる 要件であることが明らかとなった。

Conditional stability for a single interior measurement

Honda, Naofumi,McLaughlin, Joyce,Nakamura, Gen Institute of Physics 2014 Inverse problems Vol.30 No.5