This comparative study focused on chronic exercise training, menstrual cycle, menstruation, and sex related with slow-wave sleep and energy expenditure (EE) during sleep in runners and controls. Participants included 26 highly trained runners (9 males, 8 amenorrheic females, and 9 menstruating females) and 20 controls (10 males and 10 menstruating females) aged 21 ± 2 years. Sleeping metabolic rate and EE during slow-wave sleep were 2.
View Article and Find Full Text PDFAlthough the energy stored in the lean tissue (LT) and adipose tissue (AT) is well known, the energy required to synthesise these tissues is obscure. Theoretically, the energy at the point at which ΔLT/Δ body weight (BW) reaches 100 % on a regression line, which indicates the relationship between ΔLT/ΔBW and the energy required for BW gain, is considered to be the energy expended to synthesise LT. Therefore, we investigated this relationship in rats.
View Article and Find Full Text PDFBackground: Although water intake (WI) is commonly estimated through self-reporting, its inaccuracy is reported. Water turnover (rHO)-derived WI is the reference method; however, it is costly. The study aimed to validate alternative methods for determining WI in a group of athletes.
View Article and Find Full Text PDFBackground: Duchenne muscular dystrophy (DMD) is a hereditary neuromuscular disorder characterized by severe, progressive muscle wasting. Viltolarsen, a formulation consisting of exon 53-skipping antisense oligonucleotides of the dystrophin gene, has been indicated for some patients with DMD. However, reports describing the efficacy and safety of viltolarsen treatment in patients with DMD, particularly those comparing patients receiving viltolarsen with age- and time-period-matched controls, are limited.
View Article and Find Full Text PDFBackground: The spontaneous rupture of an artery aneurysm during the perinatal period is considered a serious complication associated with the physiological alteration by pregnancy and delivery. The rupture of an ovarian artery aneurysm is rare and leads to rapid retroperitoneal hemorrhage. Here, we report one case complicated by postpartum hypertensive disorder of pregnancy associated with massive bleeding into retroperitoneal cavity by the spontaneous rupture of ovarian artery aneurysm after caesarean section, and reviewed previous literature.
View Article and Find Full Text PDFBackground Sumo is a sport that requires wrestlers to develop their physique from childhood for athletic advantage. However, the energy expenditure and energy balance required for the growth of junior Sumo wrestlers remain unclear. This study aimed to determine the energy balance of junior Sumo wrestlers over six months using doubly labeled water (DLW) and bioelectrical impedance analysis (BIA).
View Article and Find Full Text PDFThe study explores the relationship between phase angle (PhA), an indicator of cellular health, and metabolic health parameters among junior sumo wrestlers in Japan. Given the demanding lifestyle and high-energy diets of sumo wrestlers that predispose them to metabolic syndrome post-retirement, this study focuses on a younger cohort. The primary aim is to evaluate if PhA could serve as an early indicator of metabolic health issues within this unique demographic.
View Article and Find Full Text PDFJ Nutr Sci Vitaminol (Tokyo)
April 2024
Although the energy stored in lean tissue (LT) and adipose tissue (AT) is well known, the energy required to synthesize these tissues is less clear. While elucidating the energy required for AT synthesis may not be so important, the elucidation of the energy required for LT synthesis is important for individuals who aim to increase their skeletal muscle. Theoretically the energy at the point at which ΔLT/Δbody weight (BW) reaches 100% on a regression curve, which indicates the relationship between ΔLT/ΔBW and the energy used to accumulate body tissue, is considered to be the energy expended to synthesize LT.
View Article and Find Full Text PDFSyphilis infections discovered late in pregnancy, as in this case, may not be treated long enough for delivery. The Japanese guidelines should be revised because they do not describe the mode of delivery for pregnant women infected with syphilis.
View Article and Find Full Text PDFPurpose: Curcumin ingestion can mitigate muscle damage, soreness, and inflammation following a laboratory-based eccentric exercise. Similar effects were observed in recent field-based studies wherein responses were evaluated after a soccer match. However, various potential confounding factors, such as matching opponent skill levels and daily training conditions, may have influenced the outcomes.
View Article and Find Full Text PDFWrestlers have a risk of relative energy deficiency in sports because they believe that they can gain an advantage over their opponents by temporarily adopting weight-making strategies even women. However, precise methods of making weight and the effect of manipulating body mass (BM) on health and performance in female wrestlers have not been reported. Our study aimed to report a case of weight making in a world-class female wrestler, who won the world competition seven times in 5-y and had oligomenorrhea.
View Article and Find Full Text PDFMyalgia is the most frequently reported neuromuscular symptom in COVID-19 patients, with a frequency of around 20% in pregnant women. Acute myositis due to COVID-19 is severe and requires medical intervention. There have been some reports of acute myositis due to COVID-19, mostly in elderly men, but rarely in pregnant women.
View Article and Find Full Text PDFBackground: Spinal muscular atrophy (SMA) is a hereditary neuromuscular disorder characterized by skeletal muscle atrophy and weakness. New treatments for SMA have been developed namely, the drugs nusinersen, onasemnogene abeparvovec, and risdiplam. However, there are limited reports on their effects on adult patients with SMA, particularly over long periods.
View Article and Find Full Text PDFBackground: Bioelectrical impedance analysis (BIA) is a technique widely used for estimating body composition and health-related parameters. The technology is relatively simple, quick, and non-invasive, and is currently used globally in diverse settings, including private clinicians' offices, sports and health clubs, and hospitals, and across a spectrum of age, body weight, and disease states. BIA parameters can be used to estimate body composition (fat, fat-free mass, total-body water and its compartments).
View Article and Find Full Text PDFJ Gerontol A Biol Sci Med Sci
October 2023
Fat-free mass (FFM) is a heterogeneous compartment comprising body cell mass (BCM), intracellular water (ICW), extracellular solids, and extracellular water (ECW). The BCM/FFM and ECW/ICW ratios vary among individuals and decrease with age. This study aimed to determine whether BCM/FFM and ECW/ICW ratios are predictors of maximal oxygen uptake (V̇̇O2peak) independently of age, sex, and objectively measured physical activity (PA).
View Article and Find Full Text PDFAims: Jarisch-Herxheimer reactions (JHR) is a transient adverse event that occurs during initial antimicrobial treatment for syphilis patients, and is known to develop uterine contractions and fetal distress in pregnant women complicated with syphilis. The aim of this study is to identify risk factors for JHR in patients with syphilis, and to clarify whether pregnancy status is a risk factor for JHR, and to describe the characteristics of pregnant women who develop JHR.
Methods: This was a retrospective chart review in a singleton university hospital in Japan.
Infants have a low capacity to thermally adapt to their environment and so sufficient consideration must be given to their thermal environment. In investigating an infant's thermal environment, the purpose of this study is to clarify the heat transfer coefficient in natural convection for the posture of an infant in a stroller. The heat transfer coefficients were measured by means of using a thermal manikin.
View Article and Find Full Text PDFBackground: Assessing whole-body skeletal muscle mass (SMM) and fat-free mass (FFM) is essential for the adequate nutritional management and training evaluation of athletes and trained individuals. This study aimed to determine the relationship between SMM assessed using the creatine (methyl-d) dilution (D-creatine) method and SMM estimated by whole-body magnetic resonance imaging (MRI) in healthy young men undergoing exercise training. Additionally, we examined the association between FFM measured using the four-component (4C) method (FFM) and the total body protein value estimated using 4C (TBpro).
View Article and Find Full Text PDFAim: To investigate whether vascularization index (VI), flow index (FI), and vascularization flow index (VFI) correlate with the pathological structure of the placenta and whether there were any differences in VI, FI, VFI, and placental pathological structure between the normal and preeclampsia (PE) groups.
Methods: Fifty-five pregnant women (normal group, n = 27; PE group, n = 28) underwent VI, FI, and VFI at four locations in the placenta during the second and third trimesters. Two hematoxylin and eosin (HE)-stained specimens of the postpartum placenta were prepared.
The phase angle (PhA), measured via bioelectrical impedance analysis, is considered an indicator of cellular health, where higher values reflect higher cellularity, cell membrane integrity, and better cell function. This study aimed to examine the relationship between PhA and exercise habits or objectively measured physical activity. We included 115 people aged 32-69 years.
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