Kyushu University Academic Staff Educational and Research Activities Database
List of Papers
Takafumi Maeda Last modified date:2024.03.07

Professor / Physiological Anthropology / Department of Human Life Design and Science / Faculty of Design


Papers
1. Takafumi Maeda, Hiroko Koga, Takashi Nonaka, Shigekazu Higuchi, Effects of bathing-induced changes in body temperature on sleep, Journal of Physiological Anthropology, https://doi.org/10.1186/s40101-023-00337-0, 42, 20, 2023.09, [URL], 人の生活活動である入浴に伴う体温変化が睡眠に及ぼす影響を明らかにした研究である。本研究では、舌下温0.9℃の上昇をもたらす浴槽浴はシャワーのみや0.3℃上昇の浴槽浴よりも、入眠時間を短縮し睡眠の質を向上させることを明らかにした。睡眠が不足している現代人の睡眠の質向上に資する研究である。.
2. Nishimura T, Motoi M, Toyoshima H, Kishida F, Shin S, Katsumura T, Nakayama K, Oota H, Higuchi S, Watanuki S, Maeda T, Endocrine, inflammatory and immune responses and individual differences in acute hypobaric hypoxia in lowlanders, Scientific Reports, https://doi.org/10.1038/s41598-023-39894-w, 13, 12659, 2023.08, この研究では、健康な低地住民を対象に急性低圧低酸素環境に曝露中の内分泌、炎症、免疫パラメータの変化と個人差を調査した。 曝露後、アルドステロンとコルチゾールは大幅に減少し、インターロイキン (IL)-6、IL-8、白血球 (WBC) 数は大幅に増加した。末梢酸素飽和度 (SpO2) の低下は、IL-6 および WBC 数の増加と関連し、IL-8 の増加はコルチゾールの増加と関連した。これらの発見は、低圧低酸素への 75 分間の短い曝露でも内分泌、炎症、免疫反応が誘発され、SpO2 が低い人はより顕著な反応を示すようであることを示唆した。.
3. Keneth B Sedilla, Takafumi Maeda, Autonomic thermoregulatory responses and subjective thermal perceptions upon the initiation of thermal behavior among resting humans in hot and humid environment, Journal of Physiological Anthropology, https://doi.org/10.1186/s40101-022-00308-x, 41, 1-9, 35, 2022.10, 本研究は、高温多湿の環境において体温調節行動を開始する際の自律体温調節反応の活性化と主観的な温熱知覚を解明することを目的とした。体温調節行動の開始前に核心体温、平均皮膚温、温熱的不快感、皮膚濡れ感は増加したが、皮膚血流量や局所発汗量は増加しなかった。これらの発見は、高温多湿の環境で温熱行動を開始するのは皮膚の血流と発汗量の変化ではなく、体温の変化と熱的不快感の増加であることが示唆した。.
4. Yoshiki Yasukochi, Sora Shin, Hitoshi Wakabayashi, Takafumi Maeda, Upregulation of cathepsin L gene under mild cold conditions in young Japanese male adults., Journal of Physiological Anthropology, https://doi.org/10.1186/s40101-021-00267-9, 40, 16, 2021.10.
5. Yoshiki Yasukochi, Sora Shin, Hitoshi Wakabayashi, Takafumi Maeda, Transcriptomic Changes in Young Japanese Males After Exposure to Acute Hypobaric Hypoxia, Frontiers in Genetics, 10.3389/fgene.2020.559074, 11, 1054, 2020.09.
6. Sora Shin, Yoshiki Yasukochi, Hitoshi Wakabayashi, Takafumi Maeda, Effects of acute hypobaric hypoxia on thermoregulatory and circulatory responses during cold air exposure, Journal of Physiological Anthropology, https://doi.org/10.1186/s40101-020-00237-7, 39, 28, 2020.09.
7. Hitoshi Wakabayashi, Kentaro Matsumoto, Yusuke Kobori, Tasuku Ebara, Mami Matsushita, Toshimitsu Kameya, Takafumi Maeda, Masayuki Saito, Multiorgan contribution to non-shivering and shivering thermogenesis and vascular responses during gradual cold exposure in humans, European Journal of Applied Physiology, https://doi.org/10.1007/s00421-020-04496-1, 2020.09.
8. Shaoying Hu, Takafumi Maeda, Productivity and physiological responses during exposure to varying air temperatures and clothing conditions, Indoor air, https://doi.org/10.1111/ina.12628, 30, 2, 251-263, 2020.03.
9. Shaoying Hu, Takafumi Maeda, Summer clothing characteristics and indoor-outdoor thermal comfort of Japanese youth, Journal of the Human-Environment System, https://doi.org/10.1618/jhes.22.17, 22, 1, 17-29, 2019.09.
10. Etika Vidyarini, Takafumi Maeda, Effects of Air Temperature Step Changes on Thermal Perception and Perceived Arousal in an Actual Environment under Hot-Humid Climate Conditions, Journal of the Human-Environment System, https://doi.org/10.1618/jhes.22.7, 22, 1, 7-15, 2019.09.
11. Akira Yasukouchi, Takafumi Maeda, Kazuyoshi Hara, Hiroyuki Furuune, Non-visual effects of diurnal exposure to an artificial skylight, including nocturnal melatonin suppression, Journal of Physiological Anthropology, 10.1186/s40101-019-0203-4, 38, 10, 2019.08, [URL].
12. Toshihiro Otsuka, Masaru Itoyama, Masato Yano, Takafumi Maeda , The effects of indoor carbon dioxide concentrations on arousal level and task performance , Indoor Air 2018, 522, 2018.07.
13. Daijiro Abe, Yoshiyuki Fukuoka, Takafumi Maeda, Masahiro Horiuchi, Energy cost and lower leg muscle activities during erect bipedal locomotion under hyperoxia, Journal of Physiological Anthropology, 10.1186/s40101-018-0177-7, 37, 18, 2018.06.
14. Etika Vidyarini, Takafumi Maeda, Effect of Transient Changes of Air Temperature on Subjective Response of Office Worker in Tropical Country (Case Study: Jakarta, Indonesia), KnE Life Sciences(International Conference of Occupational Health and Safety), 10.18502/kls.v4i5.2574, 2018, 435-444, 2018.06.
15. Takafumi Maeda, Relationship between maximum oxygen uptake and peripheral vasoconstriction in a cold environment, Journal of Physiological Anthropology, https://doi.org/10.1186/s40101-017-0158-2, 36, 42, 2017.12.
16. Ishibashi K, Maeda T, Higuch S, Iwanaga K and Yasukouchi A, Comparison of cardiovascular response to sinusoidal and constant lower body negative pressure with reference to very mild whole-body heating, Journal of Physiological Anthropology, http://doi.org/10.1186/1880-6805-31-30, 31, 30, 2012.11.
17. Takafumi Maeda, Mitsuhiro Ohta, Shin-Ya Kaneko, Hideyuki Kanda, Tetsuhito Fukushima, Relationships between heatstroke symptoms and lifestyles in Japanese forestry workers, Journal of the Human-Environment System, http://doi.org/10.1618/jhes.13.1, 13, 1, 1-6, 2011.03.
18. Takafumi Maeda, Tetsuhito Fukushima, Keita Ishibashi, Shigekazu Higuchi, Involvement of Basal Metabolic Rate in Determination of Type of Cold Tolerance, Journal of Physiological Anthropology, http://doi.org/10.2114/jpa2.26.415, 26, 3, 415-418, 2007.07.
19. Shigekazu Higuchi, Yutaka Motohashi, Keita Ishibashi, Takafumi Maeda, Influence of eye colors of Caucasians and Asians on suppression of melatonin secretion by light, American Journal of Physiology, Regulatory, Integrative, and Comparative Physiology, http://dx.doi.org/10.1152/ajpregu.00355.2006, 292, 6, R2352-R2356, 2007.06, This experiment tested effects of human eye pigmentation depending on the ethnicity on suppression of nocturnal melatonin secretion by light. Ten healthy Caucasian males with blue, green, or light brown irises (light-eyed Caucasians) and 11 Asian males with dark brown irises (dark-eyed Asians) volunteered to participate in the study. The mean ages of the light-eyed Caucasians and dark-eyed Asians were 26.4 ± 3.2 and 25.3 ± 5.7 years, respectively. The subjects were exposed to light (1,000 lux) for 2 h at night. The starting time of exposure was set to 2 h before the time of peak salivary melatonin concentration of each subject, which was determined in a preliminary experiment. Salivary melatonin concentration and pupil size were measured before exposure to light and during exposure to light. The percentage of suppression of melatonin secretion by light was calculated. The percentage of suppression of melatonin secretion 2 h after the start of light exposure was significantly larger in light-eyed Caucasians (88.9 ± 4.2%) than in dark-eyed Asians (73.4 ± 20.0%) (P
20. Shintaro Yokoyama, Takafumi Maeda, Masashi Kuramae, Naoto Kakuta, Human thermal model expressing local characteristics of each segment, Journal of Human-Environmental System, http://doi.org/10.1618/jhes.10.51, 10, 2, 51-61, 2007.04.
21. Shigekazu Higuchi, Yutaka Motohashi, Keita Ishibashi, Takafumi Maeda, Less exposure to daily ambient light in winter Increases sensitivity of melatonin to light suppression, Chronobiology International, http://dx.doi.org/10.1080/07420520601139805, 24, 1, 31-43, 2007.01, This study was carried out to examine the seasonal difference in the magnitude of the suppression of melatonin secretion induced by exposure to light in the late evening. The study was carried out in Akita (39° North, 140° East), in the northern part of Japan, where the duration of sunshine in winter is the shortest. Ten healthy male university students (mean age: 21.9±1.2 yrs) volunteered to participate twice in the study in winter (from January to February) and summer (from June to July) 2004. According to Japanese meteorological data, the duration of sunshine in Akita in the winter (50.5 h/month) is approximately one‐third of that in summer (159.7 h/month). Beginning one week prior to the start of the experiment, the level of daily ambient light to which each subject was exposed was recorded every minute using a small light sensor that was attached to the subject's wrist. In the first experiment, saliva samples were collected every hour over a period of 24 h in a dark experimental room (
22. Takafumi Maeda, Shin-Ya Kaneko, Mitsuhiro Ohta, Kazuko Tanaka, Akihiko Sasaki, Tetsuhito Fukushima, Risk factors for heatstroke in Japanese forestry workers, Journal of Occupational Health, http://doi.org/10.1539/joh.48.223, 48, 4, 223-229, 2006.08.
23. Yoko Takagi, Hajime Harada, Takafumi Maeda, Masahiko Sato, Physiological Anthropology Design: a comparative study between Germany and Japan, Journal of Physiological Anthropology, http://doi.org/10.2114/jpa2.25.55, 25, 1, 55-57, 2006.02, With the recent globalization of industrial products, there is doubt as to whether the methodology of Physiological Anthropology has also been standardized. The purpose of this study is to assess signs of standardization through a comparative analysis of Physiological Anthropology design in Germany and Japan. This survey investigates its characteristics through four factors: comfort, usability, sensation and aesthetics. Both nations regard the first three indicators as important. The difference in assessment is, however, considerable. While German physiological anthropologists use subjective evaluation by means of questionnaires, somatometry and biomechanical analysis, their Japanese counterparts apply physiological measurements of the higher nervous system and the autonomic nervous system. Polymorphism and improving functional potentiality have recently gained increasing respect in Japan. Notions of aesthetics are not consciously analyzed in both countries. If the sense of beauty of product design relates to a physical and mental response, developing a systematic analysis on this factor would be a useful task for Physiological Anthropology..
24. Shigekazu Higuchi, Yutaka Motohashi, Takafumi Maeda, Keita Ishibashi, Relationship between Individual Difference in Melatonin Suppression by Light and Habitual Bedtime, Journal of Physiological Anthropology and Applied Human Science, http://doi.org/10.2114/jpa.24.419, 24, 4, 419-423, 2005.08, The purpose of this study was to determine the relationship between individual difference in melatonin suppression by exposure to light and habitual bedtime. Seventeen healthy male students (mean age: 22.6±2.4 yr) volunteered to participate in the study. The subjects were exposed to light (1000 lx) for 2 hours from 2 hours before the time of peak salivary melatonin concentration. Two hours after exposure to the light, melatonin suppression had occurred in fifteen subjects. No significant correlation was found between the rate of melatonin suppression and habitual bedtime in the fifteen subjects in whom melatonin suppression occurred. However, the habitual bedtime of the two subjects in whom melatonin suppression did not occur was earlier than that of the other subjects. These results suggest that there are some people with very low sensitivity to light and that this may affect habitual bedtime..
25. Keita Ishibashi, Takafumi Maeda, Shigekazu Higuchi, Akira Yasukouchi, Error and Individual Difference in Cardiovascular Responses to Orthostatic Stress, Journal of Physiological Anthropology and Applied Human Science, http://doi.org/10.2114/jpa.24.339, 24, 4, 339-434, 2005.08, Variations in cardiovascular responses to orthostatic stress were investigated in terms of physiological polymorphism. Variations of physiological measurements are subdivided into individual differences and measurement errors. However, individual differences are often considered to be an error in statistical analysis due to its limitations in experimental design. In order to discuss about the relative contribution of individual difference in cardiovascular responses to postural changes, percent contribution (PC) was estimated using the Taguchi method. Six healthy male adults (age range: 21–27) were subjected to orthostatic stress by inducing a postural inclination of 60° head-up-tilting to the horizontal, and the responses were measured thrice in each subject on different days. The respective changes of heart rate (HR) and stroke volume (SV) in the period from the resting supine to the head-up-tilt position were significantly increased (p
26. Takafumi Maeda, Akiko Sugawara, Tetsuhito Fukushima, Shigekazu Higuchi, Keita Ishibashi, Effects of Lifestyle, Body Composition, and Physical Fitness on Cold Tolerance in Humans, Journal of Physiological Anthropology and Applied Human Science, http://doi.org/10.2114/jpa.24.439, 24, 4, 439-443, 2005.08, [URL].
27. Akiko Sugawara, Hiroko Yokoyama, Mitsuhiro Ohta, Takafumi Maeda, Kazuko Tanaka, Tetsuhito Fukushima, The effect of heavy metals on nicotinamide N-methyltransferase activity in vitro relating to Parkinson’s disease, Environmental Health and Preventive Medicine, http://doi.org/10.1007/BF02897708, 10, 4, 180-183, 2005.07, Objective: The aims of this study were to determine the effects of heavy metals such as manganese on nicotinamideN-methyltransferase (EC 2.1.1.1) (NNMT) activity and to consider the possibility of involvement of NNMT activation in the pathogenesis of heavy metal induced Parkinson’s disease. Methods: NNMT activity in supernatants separated from brain, liver and kidney homogenates of 5 elderly male Wistar rats by centrifugation were measured by high performance liquid chromatography system with fluorescence. NNMT activity under the conditon of 0.5 or 5.0 mM Mn2+, Fe2+, Cu2+ or Cd2+ was compared with control (no metal ion existence). Results: NNMT activities in rat brain, liver and kidneys were significantly decreased by Cu2+, and those in the liver and kidneys were significantly decreased by Cd2+. Mn2+ reduced NNMT activity only in the liver. Fe2+ had no effect on NNMT activity. Conclusions: No metal increased NNMT activity in this study, contrary to our hypothesis. Further study is needed to clarify the reason why the effects of Mn2+ and Fe2+ which have a high relevance to Parkinson’s disease on NNMT activity differ from those of Cu2+ and Cd2+.
28. Takafumi Maeda, Perspectives on Environmental Adaptability and Physiological Polymorphism in Thermoregulation, Journal of Physiological Anthropology and Applied Human Science, http://doi.org/10.2114/jpa.24.237, 24, 3, 237-240, 2005.06, [URL].
29. Shin-Ya Kaneko, Takafumi Maeda, Akihiko Sasaki, Akihiko Sato, Kazuko Tanaka, Toshio Kobayashi, Masatoshi Tanaka, Tetsuhito Fukushima, Changes in Health Habits of Female Shift Workers, Journal of Occupational Health, http://doi.org/10.1539/joh.46.192, 46, 3, 192-198, 2004.06, [URL], This paper examines the effects of shift work on the lifestyles of female factory workers. As an indicator of healthy lifestyle habits, we used a scoring system (referred to below as the ‘health score’) based on Lester Breslow’s health habits. The ‘health score’ of the women was higher than that of the men, but the shift workers’ score was lower than that of the non-shift workers (p
30. Masatoshi Tanaka, Anne-Virginie Desruelle, Hayet Sari, Victor Candas, Kazuko Tanaka, Takafumi Maeda, Effects of decreasing air temperature on peripheral thermal reactions in males and females, Environmental Health and Preventive Medicine , http://doi.org/10.1007/BF02897912, 8, 5, 178-183, 2003.11, [URL], Objectives: This study was performed to determine the effects of decreasing ambient temperature on peripheral blood flow and body temperature of males and females in a thermal neutral zone for references to the thermal standard of office workers. Methods: Peripheral blood flows of the hand and feet, and body temperatures and so on of male and female subjects were measured in a climatic chamber. Air temperature was maintained at 28.5°C at the beginning. After this, air temperature was decreased linearly to 21.0°C over a period of 60 minutes. Finally, air temperature was maintained at 21.0°C. Results: Blood flows and skin temperatures of male and female subjects became similar or showed no significant difference at beginning and the end of the experiment. Skin blood flow of the hand and skin temperatures of the hand and fingers decreased, and these values in females were lower than in males, when air temperature was decreased linearly in a thermal neutral zone. However, there were no remarkable differences between males and females in sublingual and mean skin temperatures during the experiment. Conclusion: Minimum air temperature at the thermal standard for offices in Japan is 17°C, which may be too low to be comfortable or neutral. Even in a neutral thermal condition, it is better that office workers are provided some protection such as a blanket or clothing, to protect peripheral body parts from cooling in winter, as there are individual differences in physiological thermal reactions..
31. Kazuko Tanaka, Takafumi Maeda, Toshio Kobayashi, Masatoshi Tanaka, Tetsuhito Fukushima, A survey of urinary hippuric acid and subjective symptoms among occupational low toluene exposed workers, Fukushima Journal of Medical Science, http://doi.org/10.5387/fms.49.129, 49, 2, 129-139, 2003.10.
32. Shin-Ya Kaneko, Takafumi Maeda, Akihiko Sasaki, Akihiko Sato, Kazuko Tanaka, Toshio Kobayashi, Masatoshi Tanaka, Tetsuhito Fukushima, Effect of Shift Work on Mental State of Factory Workers, Fukushima Journal of Medical Science, http://doi.org/10.5387/fms.50.1, 50, 1, 1-9, 2003.10, This paper examines the effects of shift work on the mental state of factory workers. As an indicator of the workers' mental condition, the authors used a scoring system (referred to below as the ‘ depression tendency score') based on the SRQ-D investigative report. The depression tendency score of the men was higher among the shift worker group than among the regular day worker group (p
33. Takafumi Maeda, Akira Yasukouchi, Blood Lactate Disappearance during Breathing Hyperoxic Gas after Exercise in Two Different Physical Fitness Groups: on The Work Load Fixed at 130%AT, Applied Human Science, http://doi.org/10.2114/jpa.17.33, 17, 2, 33-40, 1998.02.
34. Takafumi Maeda, Akira Yasukouchi, Blood Lactate Disappearance during Breathing Hyperoxic Gas after Exercise in Two Different Physical Fitness Groups: on The Work Load Fixed at 70%VO2max, Applied Human Science, http://doi.org/10.2114/jpa.16.249, 16, 6, 249-256, 1997.10.