0000000001330992
AUTHOR
Shu Mei Cheng
Trait-specific tracking and determinants of body composition: a 7-year follow-up study of pubertal growth in girls
Abstract Background Understanding how bone (BM), lean (LM) and fat mass (FM) develop through childhood, puberty and adolescence is vital since it holds key information regarding current and future health. Our study aimed to determine how BM, LM and FM track from prepuberty to early adulthood in girls and what factors are associated with intra- and inter-individual variation in these three tissues. Methods The study was a 7-year longitudinal cohort study. BM, LM and FM measured using dual-energy X-ray absorptiometry, self-reported dietary information, leisure time physical activity (LTPA) and other factors were assessed one to eight times in 396 girls aged 10 to 13 years (baseline), and in 2…
Does Serum 25-Hydroxyvitamin D Influence Muscle Development during Puberty in Girls? - A 7-Year Longitudinal Study
Vitamin D is well known for its regulatory role in calcium and phosphate homeostasis, but its role in muscle mass and strength during growth remains inconclusive. We explored the association of serum 25-hydroxyvitamin D (25(OH)D) with muscle development in girls from 11 to 18-years old. Whole body lean tissue mass (LMWB), appendicular lean mass (aLM), muscle cross-sectional area at the lower leg (mCSA), maximal voluntary contraction of elbow flexors (MVC elbow) and knee extensors (MVC knee) were assessed in 217 girls aged 10-13 years (at baseline), 215 in 2-year and 226 in 7.5-year follow-up. Serum concentration of 25(OH)D and intact parathyroid hormone (PTH) were analyzed retrospectively a…
Effect of aerobic exercise and low carbohydrate diet on pre-diabetic non-alcoholic fatty liver disease in postmenopausal women and middle aged men - the role of gut microbiota composition
Background Pre-diabetes and non-alcoholic fatty liver disease (NAFLD) are associated with an unhealthy lifestyle and pose extremely high costs to the healthcare system. In this study, we aim to explore whether individualized aerobic exercise (AEx) and low carbohydrate diet (LCh) intervention affect hepatic fat content (HFC) in pre-diabetes via modification of gut microbiota composition and other post-interventional effects. Methods/design A 6-month randomized intervention with 6-month follow-up is conducted from January 2013 to December 2015. The target sample size for intervention is 200 postmenopausal women and middle-aged men aged 50–65 year-old with pre-diabetes and NAFLD. The qualified…
Metabolic response to 6-week aerobic exercise training and dieting in previously sedentary overweight and obese pre-menopausal women: A randomized trial
AbstractBackground: The aim of this study was to compare 6 weeks short-term moderate intensity aerobic exercise and dieting on serum metabolomicsand cardio-metabolic risk factors in pre-menopausal women.Methods: Ninety previously inactive overweight and obese (BMI 25e35 kg/m 2 ) women (age 41.5 7.6 years) were randomized to either a6-week Nordic walking exercise program (EX, n ¼ 45) or dietary counseling group (DI, n ¼ 45). Body composition, serum glucose, insulin andlipids were measured. Serum low-molecular-weight metabolites and lipid constituents were analyzed by nuclear magnetic resonance spec-troscopy. Measurements were done at baseline and 7 days after the last training session.Result…
What Makes a 97-Year-Old Man Cycle 5,000 km a Year?
<b><i>Background:</i></b> The nature versus nurture debate is one of the oldest issues in the study of longevity, health and successful aging. <b><i>Objective:</i></b> We present a 97-year-old man (I.K.) as an example of the effects of habitual exercise on the aging process. <b><i>Methods:</i></b> Extensive assessments included medical examinations, interviews, musculoskeletal structure, performance characteristics, cognitive function and gut microbiota composition. <b><i>Results:</i></b> I.K. suffers from iatrogenic hypogonadism, prostate cancer, hypothyroidism and a history of deep popliteal th…
Does Systemic Low-Grade Inflammation Associate With Fat Accumulation and Distribution? A 7-Year Follow-Up Study With Peripubertal Girls
Knowledge about the interrelationship between adiposity and systemic low-grade inflammation during pubertal growth is important in detecting early signs of obesity-related metabolic disorders.The objective of the study was to evaluate the developmental trajectories of fat mass (FM) and high sensitive C-reactive protein (hsCRP) levels and factors that could explain the relationship between FM and hsCRP in girls from prepuberty to early adulthood.This was a 7.5-year longitudinal study.The study was conducted at the University of Jyväskylä Sports and Health Science laboratory.Three hundred ninety-six healthy Finnish girls aged 11.2 ± 0.8 years participated in the study.Body composition was ass…
Associations of disordered sleep with body fat distribution, physical activity and diet among overweight middle-aged men
This cross-sectional study aimed to investigate whether body fat distribution, physical activity levels and dietary intakes are associated with insomnia and/or obstructive sleep apnea among overweight middle-aged men. Participants were 211 Finnish men aged 30-65 years. Among the 163 overweight or obese participants, 40 had insomnia only, 23 had obstructive sleep apnea only, 24 had comorbid insomnia and obstructive sleep apnea and 76 were without sleep disorder. The remaining 48 participants had normal weight without sleep disorder. Fat mass, levels of physical activity and diet were assessed by dual-energy X-ray densitometry, physical activity questionnaire and 3-day food diary, respectivel…
Gut-adipose tissue axis in hepatic fat accumulation in humans
Recent evidence suggests that in animals gut microbiota composition (GMC) affects the onset and progression of hepatic fat accumulation. The aim of this study was to investigate in humans whether subjects with high hepatic fat content (HHFC) differ in their GMC from those with low hepatic fat content (LHFC), and whether these differences are associated with body composition, biomarkers and abdominal adipose tissue inflammation.Hepatic fat content (HFC) was measured using proton magnetic resonance spectroscopy ((1)H MRS). Fecal GMC was profiled by 16S rRNA fluorescence in situ hybridization and flow cytometry. Adipose tissue gene expression was analyzed using Affymetrix microarrays and quant…
Trait-specific tracking and determinants of body composition: a 7-year follow-up study of pubertal growth in girls
BACKGROUND: Understanding how bone (BM), lean (LM) and fat mass (FM) develop through childhood, puberty and adolescence is vital since it holds key information regarding current and future health. Our study aimed to determine how BM, LM and FM track from prepuberty to early adulthood in girls and what factors are associated with intra- and inter-individual variation in these three tissues. METHODS: The study was a 7-year longitudinal cohort study. BM, LM and FM measured using dual-energy X-ray absorptiometry, self-reported dietary information, leisure time physical activity (LTPA) and other factors were assessed one to eight times in 396 girls aged 10 to 13 years (baseline), and in 255 moth…