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Journal of Physiological Anthropology

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https://www.readbyqxmd.com/read/28086991/does-waterfall-aerosol-influence-mucosal-immunity-and-chronic-stress-a-randomized-controlled-clinical-trial
#1
Carina Grafetstätter, Martin Gaisberger, Johanna Prossegger, Markus Ritter, Predrag Kolarž, Christina Pichler, Josef Thalhamer, Arnulf Hartl
BACKGROUND: The specific microclimate of alpine waterfalls with high levels of ionized water aerosols has been suggested to trigger beneficial immunological and psychological effects. In the present three-armed randomized controlled clinical study, we focused on effects on (i) immunological reagibility, on (ii) physiological stress responses, and on (iii) stress-related psychological parameters. METHODS: People with moderate to high stress levels (n = 65) spent an active sojourn with daily hiking tours in the National Park Hohe Tauern (Großkirchheim, Austria)...
January 13, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/28057082/cognitive-performance-during-passive-heat-exposure-in-japanese-males-and-tropical-asian-males-from-southeast-asian-living-in-japan
#2
Titis Wijayanto, Sayo Toramoto, Yasuhiko Maeda, Su-Young Son, Sonomi Umezaki, Yutaka Tochihara
BACKGROUND: Heat acclimatization studies have reported that tropical natives have better physiological function to tolerate heat exposure compared to those from temperate natives, in which may result in a better ability to show a better resistance to performance losses during heat stress. In this study, we investigate whether the degree of heat acclimatization affects cognitive abilities during heat exposure by comparing heat acclimatization level of subjects from Southeast Asia and temperate natives from Japan...
January 5, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/28057077/ice-ingestion-with-a-long-rest-interval-increases-the-endurance-exercise-capacity-and-reduces-the-core-temperature-in-the-heat
#3
Takashi Naito, Yuka Iribe, Tetsuro Ogaki
BACKGROUND: The timing in which ice before exercise should be ingested plays an important role in optimizing its success. However, the effects of differences in the timing of ice ingestion before exercise on cycling capacity, and thermoregulation has not been studied. The aim of the present study was to assess the effect of length of time after ice ingestion on endurance exercise capacity in the heat. METHODS: Seven males ingested 1.25 g kg body mass(-1) of ice (0...
January 5, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27955701/lifestyle-and-geographic-insights-into-the-distinct-gut-microbiota-in-elderly-women-from-two-different-geographic-locations
#4
Ji-Hee Shin, Minju Sim, Joo-Young Lee, Dong-Mi Shin
BACKGROUND: A large number of microorganisms reside within the gastrointestinal tract, especially in the colon, and play important roles in human health and disease. The composition of the human gut microbiota is determined by intrinsic host factors and environmental factors. While investigating environmental factors to promote human health is of great interest, few studies have focused on their effect on the gut microbiota. This study aimed to investigate differences in gut microbiota composition according to lifestyle and geographical area, even in people with similar genetic background...
December 12, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27931244/association-of-lower-extremity-range-of-motion-and-muscle-strength-with-physical-performance-of-community-dwelling-older-women
#5
Hungu Jung, Masahiro Yamasaki
BACKGROUND: Reduced lower extremity range of motion (ROM) and muscle strength are related to functional disability in older adults who cannot perform one or more activities of daily living (ADL) independently. The purpose of this study was to determine which factors of seven lower extremity ROMs and two muscle strengths play dominant roles in the physical performance of community-dwelling older women. METHODS: Ninety-five community-dwelling older women (mean age ± SD, 70...
December 8, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27919279/height-correlates-with-dyslipidemia-in-non-overweight-middle-aged-japanese-men
#6
Yuji Shimizu, Hiroyuki Yoshimine, Mako Nagayoshi, Koichiro Kadota, Kensuke Takahashi, Kiyohiro Izumino, Kenichiro Inoue, Takahiro Maeda
BACKGROUND: Our previous study showed that height is inversely associated with the risk of stroke in middle-aged Japanese men, particularly in those with a low body mass index (BMI). Since height is regarded as a surrogate maker of childhood social and physical condition, while BMI may reflect primarily on the current physical condition, a detailed analysis of those with a lower BMI may elucidate the effects of childhood conditions. On the other hand, dyslipidemia is recognized as a prominent risk factor for cardiovascular disease...
December 6, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27884213/regional-variation-in-ascaris-lumbricoides-and-trichuris-trichiura-infections-by-age-cohort-and-sex-effects-of-market-integration-among-the-indigenous-shuar-of-amazonian-ecuador
#7
Theresa E Gildner, Tara J Cepon-Robins, Melissa A Liebert, Samuel S Urlacher, Felicia C Madimenos, J Josh Snodgrass, Lawrence S Sugiyama
BACKGROUND: Soil-transmitted helminth (STH) infection peaks during childhood and varies by sex. The impact of market integration (MI) (increasing production for and consumption from a market-based economy) on these infection patterns, however, is unclear. In this study, STH infection is examined by sex and age among indigenous Shuar inhabiting two regions of Amazonian Ecuador: (1) the modestly market-integrated Upano Valley (UV) and (2) the more traditional Cross-Cutucú (CC) region. METHODS: Kato-Katz fecal smears were examined for parasite presence and infection intensity...
November 24, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27852306/positive-emotion-inducement-modulates-cardiovascular-responses-caused-by-mental-work
#8
Xinxin Liu, Kazuma Ishimatsu, Midori Sotoyama, Kazuyuki Iwakiri
BACKGROUND: Positive emotion is considered as an important factor related to health-relevant biological processes, including cardiovascular responses. To explore the possibility of using positive emotion as a tool to manage cardiovascular response of white-collar workers, we examined the influence on cardiovascular response of positive emotion inducement before a mental work. METHOD: Seventeen healthy males participated and performed a 10-min, PC-based Stroop color word task as their mental work...
November 16, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27788690/changes-in-autonomic-nervous-system-activity-body-weight-and-percentage-fat-mass-in-the-first-year-postpartum-and-factors-regulating-the-return-to-pre-pregnancy-weight
#9
Mie Izumi, Emiko Manabe, Sayo Uematsu, Ayako Watanabe, Toshio Moritani
BACKGROUND: Many women become obese during pregnancy and the postpartum period. Weight gain and obesity in the general population are often attributed to abnormalities of autonomic nervous system (ANS) activity. The aim of this study was to clarify change in ANS activity, body weight, percentage fat mass (%FM), and body mass index (BMI) and the factors regulating the return to the pre-pregnancy weight in the first year postpartum. METHODS: This study was conducted from 2012 to 2016 at the University Hospital of the Kyoto Prefectural University of Medicine and a nearby obstetrics and gynecology clinic in Japan...
October 27, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27729080/effect-of-self-reported-walking-difficulty-on-bone-mass-and-bone-resorption-marker-in-japanese-people-aged-40%C3%A2-years-and-over
#10
Yasuyo Abe, Takayuki Nishimura, Kazuhiko Arima, Mitsuo Kanagae, Satoshi Mizukami, Yoshihito Tomita, Takuhiro Okabe, Hisashi Goto, Itsuko Horiguchi, Kiyoshi Aoyagi
BACKGROUND: This study aimed to examine the association of walking difficulty with bone mass or bone turnover among community-dwelling Japanese people aged 40 years and older. METHODS: We studied 1097 community-dwelling Japanese people aged 40 years and older (379 men and 718 women) who were invited to participate in periodic health examinations in 2006-2009. Walking difficulty was defined as having difficulty walking 100 m on a level surface (self-administered questionnaire)...
October 11, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27716445/suppression-of-vagal-cardiac-modulation-by-blue-light-in-healthy-subjects
#11
Emi Yuda, Hiroki Ogasawara, Yutaka Yoshida, Junichiro Hayano
BACKGROUND: In the contemporary life environments, our body is increasingly exposed to various sources of colored light, which may affect our physiological functions as non-image-forming effects. We examined the impacts of colored lights on the autonomic functions by the analysis of heart rate variability (HRV). METHODS: A lighting device consisting of four organic light-emitting diode (OLED) modules (55 × 55 mm(2)) with adjustable red-green-blue color was secured 24 cm above the eyes of subject lying supine in a light-shielded laboratory...
October 5, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27716348/whole-body-patterns-of-the-range-of-joint-motion-in-young-adults-masculine-type-and-feminine-type
#12
Keiichi Moromizato, Ryosuke Kimura, Hitoshi Fukase, Kyoko Yamaguchi, Hajime Ishida
BACKGROUND: Understanding the whole-body patterns of joint flexibility and their related biological and physical factors contributes not only to clinical assessments but also to the fields of human factors and ergonomics. In this study, ranges of motion (ROMs) at limb and trunk joints of young adults were analysed to understand covariation patterns of different joint motions and to identify factors associated with the variation in ROM. METHODS: Seventy-eight healthy volunteers (42 males and 36 females) living on Okinawa Island, Japan, were recruited...
October 1, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27680542/the-physiological-basis-and-measurement-of-heart-rate-variability-in-humans
#13
Adina E Draghici, J Andrew Taylor
Cardiovascular variabilities were recognized over 250 years ago, but only in the past 20 years has their apparent utility come to be appreciated. Technological advancement has allowed precise measurement and quantification of short-term cardiovascular fluctuations; however, our understanding of the integrated mechanisms which underlie these oscillations is inadequate for their widespread application. Both autonomic branches, the parasympathetic and sympathetic nervous system, are key determinants of the magnitude of these spontaneous cardiovascular fluctuations...
September 28, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27680326/a-comparative-study-on-the-regulatory-region-of-the-period1-gene-among-diurnal-nocturnal-primates
#14
Takafumi Katsumura, Yukiko Fukuyo, Shoji Kawamura, Hiroki Oota
BACKGROUND: The circadian clock is set up around a 24-h period in humans who are awake in the daytime and sleep in the nighttime, accompanied with physiological and metabolic rhythms. Most haplorhine primates, including humans, are diurnal, while most "primitive" strepsirrhine primates are nocturnal, suggesting primates have evolved from nocturnal to diurnal habits. The mechanisms of physiological changes causing the habits and of genetic changes causing the physiological changes are, however, unknown...
September 28, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27580590/sleep-patterns-among-shift-working-flight-controllers-of-the-international-space-station-an-observational-study-on-the-jaxa-flight-control-team
#15
Koh Mizuno, Akiko Matsumoto, Tatsuya Aiba, Takashi Abe, Hiroshi Ohshima, Masaya Takahashi, Yuichi Inoue
BACKGROUND: Flight controllers of the International Space Station (ISS) are engaged in shift work to provide 24-h coverage to support ISS systems. The purpose of this study was to investigate the prevalence and associated factors of shift work sleep disorder (SWSD) among Japanese ISS flight controllers. METHODS: A questionnaire study was conducted using the Standard Shiftwork Index to evaluate sleep-related problems and possible associated variables. Among 52 respondents out of 73 flight controllers, 30 subjects were identified as night shift workers who worked 3 or more night shifts per month...
September 1, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27580696/effect-of-simultaneous-exposure-to-extremely-short-pulses-of-blue-and-green-light-on-human-pupillary-constriction
#16
Soomin Lee, Shougo Ishibashi, Yoshihiro Shimomura, Tetsuo Katsuura
No abstract text is available yet for this article.
August 31, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27558395/does-degree-of-alteration-in-effort-sense-caused-by-eccentric-exercise-significantly-affect-initial-exercise-hyperpnea-in-humans
#17
Norio Hotta, Kaoru Yamamoto, Hisayoshi Ogata, Patrick Maher, Naoya Okumura, Koji Ishida
Previous research has shown an exaggeration in exercise hyperpnea 2 days after eccentric exercise (ECC). Enhancement in central command has been suggested as one candidate to account for this effect given that ECC-induced neuromuscular dysfunction increases relative exercise intensity, thus resulting in reinforcement of effort sense. The purpose of this study was, therefore, to elucidate whether the degree of alteration in effort sense caused by ECC affects exercise hyperpnea. Ten subjects performed 20-s single-arm extension-flexion exercises with weight strapped to the wrist, and ventilatory response was measured before (Pre) and 2 days after ECC (D2)...
August 24, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27553830/measurement-of-superficial-and-deep-abdominal-muscle-thickness-an-ultrasonography-study
#18
Nahid Tahan, Khosro Khademi-Kalantari, Mohammad Ali Mohseni-Bandpei, Saeed Mikaili, Alireza Akbarzadeh Baghban, Shapour Jaberzadeh
BACKGROUND: Real-time ultrasound imaging is a valid method in the field of rehabilitation. The ultrasound imaging allows direct visualization for real-time study of the muscles as they contract over the time. Measuring of the size of each abdominal muscle in relation to the others provides useful information about the differences in structure, as well as data on trunk muscle activation patterns. The purpose of this study was to assess the size and symmetry of the abdominal muscles at rest in healthy adults and to provide a reference range of absolute abdominal muscle size in a relatively large population...
August 23, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27549993/greater-body-mass-index-is-related-to-greater-self-identified-cold-tolerance-and-greater-insensible-body-mass-loss
#19
Dahee Jung, Dami Kim, Joonhee Park, Joo Young Lee
BACKGROUND: Insensible body mass loss (IBL) from the human body continuously occurs, which is an important component in body heat exchange. The purpose of this study was to examine the relevance of IBL to anthropometric characteristics and self-identified thermal tolerance. METHODS: A total of 289 healthy young Korean males were chosen and sorted into the following three groups: heat tolerable only (HTO, N = 79), cold tolerable only (CTO, N = 104), neither heat nor cold tolerable (NHC, N = 106)...
August 22, 2016: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/27457224/postural-control-and-contingent-negative-variation-during-transient-floor-translation-while-standing-with-the-ankle-fixed
#20
Vitalii Lytnev, Katsuo Fujiwara, Naoe Kiyota, Mariko Irei, Hiroshi Toyama, Chie Yaguchi
BACKGROUND: Adaptation changes in postural muscle activity and anticipatory attention were investigated with the ankle joint fixed to change postural control strategies during transient floor translation. METHODS: For 15 healthy young adults, 40 transient floor translations (S2) in the anterior direction were applied 2 s after an auditory warning signal (S1), under conditions with or without fixation of the ankle. Activity of the frontal postural muscles (tibialis anterior (TA), rectus femoris (RF), rectus abdominis) and contingent negative variation (CNV, brain potential) were analyzed for 20 trials each of the early and latter halves under each fixation condition...
July 25, 2016: Journal of Physiological Anthropology
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