Journal of Physical Fitness and Sports Medicine最新文献_第6页

Acute influence of mild cycle exercise on cold sensory function in young women with awareness of cold constitution 轻度周期运动对有冷体质意识的年轻女性冷感觉功能的急性影响

Journal of Physical Fitness and Sports Medicine Pub Date : 2022-01-25 DOI: 10.7600/jpfsm.11.21

F. Yamazaki, Wakana Kobayashi, Manayo Suenaga, Kana Tsuchimoto

引用次数: 1

An 18-hole round of golf acutely elevates serum interleukin-6 and brain-derived neurotrophic factor concentration - a pilot study 一项初步研究表明，一场18洞的高尔夫球会显著提高血清白细胞介素-6和脑源性神经营养因子的浓度

Journal of Physical Fitness and Sports Medicine Pub Date : 2022-01-25 DOI: 10.7600/jpfsm.11.1

Y. Yasuoka, Takeshi Nakamura, Y. Umemoto, T. Kinoshita, S. Hoekstra, Keisuke Hoshiai, H. Ohko, M. Abo, F. Tajima

引用次数: 1

Effect of hip adduction/abduction contraction on pelvic floor in young healthy women 年轻健康女性髋关节内收/外展收缩对盆底的影响

Journal of Physical Fitness and Sports Medicine Pub Date : 2022-01-25 DOI: 10.7600/jpfsm.11.29

Hiroyo Kamio, H. Maruyama, Nozomi Ito, M. Kunieda, Ayaka Chiba, Yorimitsu Furukawa

引用次数: 0

Variabilities of salivary human herpesvirus 6/7 and cortisol levels during a three-day training camp in judo athletes 柔道运动员为期三天训练营唾液人类疱疹病毒6/7和皮质醇水平的变异性

Journal of Physical Fitness and Sports Medicine Pub Date : 2022-01-25 DOI: 10.7600/jpfsm.11.43

Shinsuke Tamai, Hiroaki Hiraoka, K. Shimizu, Keisuke Miyake, Daisuke Hoshi, Kai Aoki, Koki Yanazawa, T. Sugasawa, K. Takekoshi, Koichi Watanabe

{"title":"Variabilities of salivary human herpesvirus 6/7 and cortisol levels during a three-day training camp in judo athletes","authors":"Shinsuke Tamai, Hiroaki Hiraoka, K. Shimizu, Keisuke Miyake, Daisuke Hoshi, Kai Aoki, Koki Yanazawa, T. Sugasawa, K. Takekoshi, Koichi Watanabe","doi":"10.7600/jpfsm.11.43","DOIUrl":"https://doi.org/10.7600/jpfsm.11.43","url":null,"abstract":"Physical fatigue accompanying athletic training has been a problem for ages. While salivary cortisol has traditionally been used to assess physical stressors, salivary human herpesvirus 6 and/or 7 (HHV-6/7) have recently been presented as novel microbiological markers. Thus, we examined differences in the short-term variabilities of salivary HHV-6/7 and cortisol levels in athletes. We collected saliva samples from 14 healthy male university judo athletes who participated in a three-day training camp pre- and post-training each day to measure salivary HHV-6/7 and cortisol levels. Simultaneously, the plasma superoxide dismutase (SOD) inhibition rates and total mood disturbance (TMD) scores in the Profile of Mood States were measured as indicators of physical and psychological stressors, respectively. The plasma SOD inhibition rates significantly increased post-training, but the TMD scores did not change; thus, the physical stressors were relatively higher than the psychological stressors during the training camp. Salivary HHV-6/7 levels increased post-training with a significant main effect of training, but no changes were observed in the daily levels. Only salivary HHV-7 levels showed a significant training × elapsed day interaction. Salivary cortisol levels showed a significant main effect of training, but its levels decreased post-training. These findings suggest that salivary HHV-6/7 are sensitive markers of physical fatigue more than salivary cortisol.","PeriodicalId":55847,"journal":{"name":"Journal of Physical Fitness and Sports Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41816368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Resting energy expenditure is lower in Japanese female athletes with menstrual disorders than in eumenorrheic athletes 日本女性月经紊乱运动员的静息能量消耗低于痛经运动员

Journal of Physical Fitness and Sports Medicine Pub Date : 2022-01-25 DOI: 10.7600/jpfsm.11.35

Kuniko Moto, Mika Goshozono, S. Torii, Akira Namba, M. Taguchi

{"title":"Resting energy expenditure is lower in Japanese female athletes with menstrual disorders than in eumenorrheic athletes","authors":"Kuniko Moto, Mika Goshozono, S. Torii, Akira Namba, M. Taguchi","doi":"10.7600/jpfsm.11.35","DOIUrl":"https://doi.org/10.7600/jpfsm.11.35","url":null,"abstract":"Menstrual disorders are health problems in female athletes. It has also been reported that amenorrhea can lead to metabolic suppression. However, studies regarding resting energy expenditure (REE) in Japanese female athletes with menstrual disorders are lacking. The purpose of this study was to investigate whether REE was suppressed in female Japanese athletes with menstrual disorders. In total, 22 highly trained intercollegiate athletes participated in this study; and body composition, REE, thyroid and reproductive hormone levels, and nutritional intake levels were measured. Predicted REE (REEp) was calculated using two different equations based on fat-free mass (FFM) and organ-tissue mass measured by dual-energy X-ray absorptiometry (DXA). Individuals with menstrual disorders (MD group) had significantly lower height, body weight, and fat mass than those in the eumenorrheic (EU) group; however, the FFM did not differ between the groups. Both the measured REE (REEm) and REEm adjusted for FFM in the MD group were lower than those in the EU group. The REEm to REEp ratio, which indicates energy deficiency, was also lower in the MD group. In addition, although the MD group had lower triiodothyronine and progesterone levels, they were still within the normal range. Japanese female athletes with menstrual disorders may have lower REE than eumenorrheic athletes, even if thyroid and reproductive hormones are within the normal range.","PeriodicalId":55847,"journal":{"name":"Journal of Physical Fitness and Sports Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47124405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Wearing lacrosse uniform during exercise-simulated match in heat increases physiological strain index 在高温条件下进行模拟运动比赛时，穿着长曲棍球运动服会增加生理应变指数

Journal of Physical Fitness and Sports Medicine Pub Date : 2022-01-25 DOI: 10.7600/jpfsm.11.9

Jumpei Osakabe, Masanobu Kajiki, Ryosuke Inada, Takaaki Matsumoto, Y. Umemura

引用次数: 1

Effect of chronic muscle contraction on expression of contractile and metabolic proteins in mouse primary cultured myotubes 慢性肌肉收缩对小鼠原代培养肌管收缩和代谢蛋白表达的影响

Journal of Physical Fitness and Sports Medicine Pub Date : 2022-01-25 DOI: 10.7600/jpfsm.11.51

Yoshitaka Mita, Miyuki Ito, Mio Yamada, N. Fujii, Y. Manabe, Y. Furuichi

{"title":"Effect of chronic muscle contraction on expression of contractile and metabolic proteins in mouse primary cultured myotubes","authors":"Yoshitaka Mita, Miyuki Ito, Mio Yamada, N. Fujii, Y. Manabe, Y. Furuichi","doi":"10.7600/jpfsm.11.51","DOIUrl":"https://doi.org/10.7600/jpfsm.11.51","url":null,"abstract":"Endurance exercise induces skeletal muscle adaptations such as fiber-type switching, mitochondrial biogenesis, angiogenesis, and the enhancement of glucose disposal, all of which ameliorate metabolic dysfunction. Since many factors such as body temperature, pH, osmolality, the secretion patterns of neurotransmitters, and humoral factors, change during exercise, it is not easy to determine precisely how each factor contributes to exercise-induced adaptations. To determine these contributions, there is need for experimental studies using an in vitro muscle culture system focusing on a single added stimulus. In this study, we focused on whether contractile stimulation is itself responsible for inducing skeletal muscle adaptations. We constructed a chronic contraction model in mouse primary myotubes and investigated which type of contractile stimulation could induce muscle fiber switching and/or metabolic adaptations. We tested five sets of contractile stimulus conditions, including tetanus and twitch, for different stimulation periods. Of these, when myotubes were stimulated by 6 V/15 mA electric pulses at 1 Hz (20 ms contraction followed by 980 ms relaxation) for 24 hours, we observed a significant increase in the expression of myosin heavy chain (MyHC) I protein, a marker protein for type I (oxidative) myofiber, and a tendency for MyHC IIa expression to increase, a marker protein for type IIa fiber (the most oxidative myofiber out of the type II iso-forms). However, the same conditions did not induce any change in the expression of GLUT4, COX IV, and hexokinase II, proteins related to the transport of glucose and metabolism. These results suggest chronic contractile stimulation does not induce the expression of proteins related to metabolism, but it does regulate the expression patterns of MyHC. This chronic contraction model has the potential to clarify the molecular mechanisms underlying the induction of oxidative myofibers in response to muscle contraction.","PeriodicalId":55847,"journal":{"name":"Journal of Physical Fitness and Sports Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46136475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel standing desk intervention in Japanese elementary education: mixed-methods evidence for health and pedagogical impacts 日本基础教育中的新型站立式书桌干预:健康和教学影响的混合方法证据

Journal of Physical Fitness and Sports Medicine Pub Date : 2021-09-25 DOI: 10.7600/jpfsm.10.273

M. Annear, T. Kidokoro

{"title":"Novel standing desk intervention in Japanese elementary education: mixed-methods evidence for health and pedagogical impacts","authors":"M. Annear, T. Kidokoro","doi":"10.7600/jpfsm.10.273","DOIUrl":"https://doi.org/10.7600/jpfsm.10.273","url":null,"abstract":"Standing desks have the potential to improve educational and health outcomes in elementary schools, yet limited intervention studies have been undertaken using mixed methods approaches or in Asian countries. The aim of this research was to elucidate the subjective experiences and objective effects of standing desk use in a Japanese elementary school. Respondents in the intervention included a class of 22 year six students and their teacher at a public elementary school in Nagano, Japan. Standing desks were implemented in the classroom for nine months. Subjective focus group and interview data were generated on two occasions during the intervention period to facilitate data saturation. Objective accelerometry data were used to record active and sedentary behaviour before and during the intervention. Focus group and interview data highlighted positive physical and educational effects, including perceived improvements in endurance and posture, self-expression, peer interaction, and reduced state anxiety. These data also revealed concerns about age-appropriateness and practicality of implementation in a conservative education system. Accelerometry findings showed significant changes in moderate- to vigorous-intensity physical activity during both school and non-school hours. Standing desks provide a practical approach for modernizing Japanese elementary education, which may hold benefits across both health and education. Follow-up multi-site randomized controlled interventions and comparisons of teacher style and philosophy in standing desk classrooms are recommended to confirm and expand the present findings. was performed to examine the changes in activity levels between baseline and follow-up in the intervention (n 22) and control (n 20) classes. If the interaction was significant, post-hoc analysis was performed to examine the simple main effects in each factor. and behavior during non-school hours between and control classes","PeriodicalId":55847,"journal":{"name":"Journal of Physical Fitness and Sports Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44175222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Individual differences in knee extensor fatigue induced by sustained mid-level contraction 持续中度收缩引起的膝关节伸肌疲劳的个体差异

Journal of Physical Fitness and Sports Medicine Pub Date : 2021-09-25 DOI: 10.7600/jpfsm.10.283

Naoya Hirata, Shinya Sato, Hiroki Tanimoto, Naoto Imaizumi, Kosuke Hirata, R. Akagi

引用次数: 0

Walking exercise intervention for 4 weeks mitigates cold symptoms in young women with a cold constitution 为期4周的步行锻炼干预可缓解感冒体质年轻女性的感冒症状

Journal of Physical Fitness and Sports Medicine Pub Date : 2021-09-25 DOI: 10.7600/jpfsm.10.255

F. Yamazaki, Yume Araki, Sayaka Takuno, Ayuka Hamada

引用次数: 3