scholarly journals Effects of vitamin D supplementation and resistance training on insulin resistance, lipid profile and body fat percentage in T2D men with vitamin D deficiency.

2018 ◽  
Vol 23 (2) ◽  
pp. 1-11
Author(s):  
Ali Dadrass ◽  
◽  
Khalid Mohammadzadeh Salamat ◽  
Kamaleddin Hamidi ◽  
Kamal Azizbeigi ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Vitamin D ◽  
Resistance Training ◽  
Lipid Profile ◽  
Vitamin D Deficiency ◽  
Body Fat ◽  
Vitamin D Supplementation ◽  
Body Fat Percentage ◽  
Fat Percentage

scholarly journals Biochemical, anthropometric and body composition indicators as predictors of hepatic steatosis in obese adolescents

2014 ◽  
Vol 32 (2) ◽  
pp. 230-236
Author(s):  
Amanda Oliva Gobato ◽  
Ana Carolina J. Vasques ◽  
Roberto Massao Yamada ◽  
Mariana Porto Zambon ◽  
Antonio de Azevedo Barros-Filho ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Body Composition ◽  
Lipid Profile ◽  
Hepatic Steatosis ◽  
Body Fat ◽  
Aspartate Aminotransferase ◽  
Abdominal Ultrasound ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Gamma Glutamyltransferase

OBJECTIVE: To describe the prevalence of hepatic steatosis and to assess the performance of biochemical, anthropometric and body composition indicators for hepatic steatosis in obese teenagers.METHODS: Cross-sectional study including 79 adolecents aged from ten to 18 years old. Hepatic steatosis was diagnosed by abdominal ultrasound in case of moderate or intense hepatorenal contrast and/or a difference in the histogram ≥7 on the right kidney cortex. The insulin resistance was determined by the Homeostasis Model Assessment-Insulin Resistance (HOMA-IR) index for values >3.16. Anthropometric and body composition indicators consisted of body mass index, body fat percentage, abdominal circumference and subcutaneous fat. Fasting glycemia and insulin, lipid profile and hepatic enzymes, such as aspartate aminotransferase, alanine aminotransferase, gamma-glutamyltransferase and alkaline phosphatase, were also evaluated. In order to assess the performance of these indicators in the diagnosis of hepatic steatosis in teenagers, a ROC curve analysis was applied.RESULTS: Hepatic steatosis was found in 20% of the patients and insulin resistance, in 29%. Gamma-glutamyltransferase and HOMA-IR were good indicators for predicting hepatic steatosis, with a cutoff of 1.06 times above the reference value for gamma-glutamyltransferase and 3.28 times for the HOMA-IR. The anthropometric indicators, the body fat percentage, the lipid profile, the glycemia and the aspartate aminotransferase did not present significant associations.CONCLUSIONS: Patients with high gamma-glutamyltransferase level and/or HOMA-IR should be submitted to abdominal ultrasound examination due to the increased chance of having hepatic steatosis.

scholarly journals Effect of 14 weeks of resistance training on lipid profile and body fat percentage in premenopausal women

1999 ◽  
Vol 33 (3) ◽  
pp. 190-195 ◽  
Author(s):  
B. Prabhakaran ◽  
E. A. Dowling ◽  
J. D. Branch ◽  
D. P. Swain ◽  
B. C. Leutholtz
Keyword(s):  
Resistance Training ◽  
Lipid Profile ◽  
Body Fat ◽  
Premenopausal Women ◽  
Body Fat Percentage ◽  
Fat Percentage

scholarly journals The impact of vitamin D supplementation on body fat mass in elite male collegiate athletes

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Itaru Kawashima ◽  
Takashi Tsukahara ◽  
Ryosuke Kawai ◽  
Takafumi Mizuno ◽  
Shinya Ishizuka ◽  
...  
Keyword(s):  
Vitamin D ◽  
Body Fat ◽  
Serum Vitamin ◽  
Collegiate Athletes ◽  
Vitamin D Supplementation ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Serum Vitamin D ◽  
Supplement Group ◽  
The Impact

Abstract Background Whether vitamin D supplementation has any effect on body fat percentage, especially among elite athletes, remains unclear. The aim of this study was to evaluate the effect of vitamin D supplementation on serum vitamin D level in elite male collegiate athletes and to analyze its effect on body fat percentage. Methods We enrolled a total of 42 elite male collegiate athletes in this prospective cohort study. In March 2020, body composition monitoring and blood test were performed. All athletes were provided with vitamin D3 supplement tablets of 25 μg/day. The use of the supplement was dependent on athletes’ preference. During the study period, their club activities were stopped for 2 months due to the coronavirus disease 2019 outbreak. A second examination, similar to the first one, was performed after approximately 3 months. Supplement usage by each athlete was also confirmed. The participants were divided into a non-supplement group (without supplementation, n = 15) and a supplement group (with supplementation, n = 27). Results Regarding baseline data at initial examination, the non-supplement and supplement groups showed significant differences in the mean body fat percentage (9.0% and 12.1%, respectively; P = 0.03) and serum 25(OH)D level (22.7 and 18.5 ng/mL, respectively, P = 0.02). At the time of the second examination, there were no significant differences in the results of both the groups. In terms of mean change value from the first to the second examination, there were significant differences in body fat percentage (1.9 and 0.2%, respectively, P = 0.02) and serum 25(OH)D level (1.7 and 7.2 ng/mL, respectively, P < 0.001) between the two groups. A significant negative correlation was observed between the change ratio of body fat percentage and change value of serum 25(OH)D level (r =  − 0.37, P = 0.02). Conclusions Vitamin D supplementation of 25 μg/day significantly increased the serum 25(OH)D level in elite male collegiate athletes. Vitamin D supplementation may play a role in maintaining athletes’ body fat percentage under circumstances where sports activity has decreased.

scholarly journals Is vitamin D deficiency in obese youth a risk factor for less weight loss during a weight loss program?

2019 ◽  
Vol 8 (11) ◽  
pp. 1468-1473 ◽  
Author(s):  
Karolien Van De Maele ◽  
Jean De Schepper ◽  
Jesse Vanbesien ◽  
Monique Van Helvoirt ◽  
Ann De Guchtenaere ◽  
...  
Keyword(s):  
Vitamin D ◽  
Weight Loss ◽  
Vitamin D Deficiency ◽  
Body Fat ◽  
Weight Loss Program ◽  
Body Fat Percentage ◽  
Body Fat Mass ◽  
Fat Percentage ◽  
Obese Adolescents ◽  
25 Oh Vitamin D

Background Vitamin D deficiency is common in obese adolescents and a risk factor for insulin resistance. We investigated if prevailing serum 25-OH vitamin D might predict the body fat loss in a group of obese adolescents undergoing a residential weight loss program. Methods In 92 (35 male) obese adolescents (aged 10.6–19 years) undergoing a residential weight loss program in Belgium, fasting serum 25-OH vitamin D (25-OH-D), insulin, glucose and lipid levels were measured and body composition was assessed by dual-energy X-ray absorptiometry (DXA). Results Baseline median (range) serum 25-OH-D level was 17.7 µg/L (3.8–41.8). In total, 55 adolescents had a serum 25-OH-D below 20 µg/L. In 31 adolescents with a low baseline 25-OH-D level, median increase in serum 25-OH-D was 2.4 µg/L (−4.2 to 7.2) after 10 months. This resulted in normal 25-OH-D levels in seven adolescents, whereas median BMI decreased with 1.0 SDS and body fat percentage diminished with 9.9%. Obese adolescents with or without a 25-OH-D level below or above 20 µg/L at baseline had similar changes in body weight, BMI SDS, body fat percentage and body fat mass at the end of the program. The change in serum 25-OH-D did not correlate with change in serum insulin, BMI SDS or body fat percentage and body fat mass. Conclusion Vitamin D deficiency was present in 55 out of 92 obese adolescents at the start of the summer. Serum 25-OH-D concentration did not predict changes in body fat loss after a residential weight loss program.

Comparison of CrossFit Barbara and classic resistance trainings for the protection of strength performance during off-season in kickboxers

2020 ◽  
pp. 1-8
Author(s):  
Cebrail Gençoğlu ◽  
İlhan Şen
Keyword(s):  
Resistance Training ◽  
Body Mass ◽  
Body Fat ◽  
Bench Press ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Strength Performance ◽  
Significant Difference ◽  
Before And After ◽  
Push Up

BACKGROUND: The inability of athletes to train or the decrease in the intensity and frequency of training may cause athletes to lose performance. Particularly in view of the current COVID-19 pandemic, maintaining strength outside the normal framework provides an advantage to athletes for the next competitions. OBJECTIVE: To compare the CrossFit Barbara which can be applied easily at home during the off-season or some situations such as the epidemic limitation to classic resistance training methods used to maintain the strength performance of national kickboxers. METHODS: Forty-three national kickboxers, CrossFit (CF, n= 22), and resistance training (RT, n= 21), participated in this study. While CF performed 20 pull-ups, 30 push-ups, 40 sit-ups, and 50 squat exercises, RT performed bench press, lat pull down, leg press, biceps curl, and triceps extension exercises twice per week for six weeks. Before and after the six weeks, the following variables were measured; body mass (BM) and body fat percentage (FP), VO2max, bench press (BP), squat (SQ), leg strength (LS), hand grip strength (HGS), pull-up, push-up and counter movement jump (CMJ). RESULTS: BP (p< 0.001, F= 41.125, ηp2= 0.501), SQ (p< 0.001, F= 26.604, ηp2= 0.394), LS (p< 0.001, F= 15.234, ηp2= 0.271), push-up (p< 0.001, F= 31.978, ηp2= 0.438) and pull-up (p< 0.001, F= 24.410, ηp2= 0.373) values changed significantly in group-time interaction between CF and RT groups, while there was no significant difference for the BM (p= 0.198, F= 1.715, ηp2= 0.040), Fat (p= 0.265, F= 1.279, ηp2= 0.030), HGS (p= 0.665, F= 0.190, ηp2= 0.005, CMJ (p= 0.054, F= 3.946, ηp2= 0.088) and VO2max (p=0.747, F= 0.106, ηp2= 0.003). Furthermore, according to the before and after study values, BP, SQ, LS, and CMJ decreased significantly (p< 0.05) while BM, FP, HGS, VO2max, pull-up and push-up variables did not in the CF (p> 0.05). In the RT, the pull-up and push-up variables decreased significantly (p< 0.05) while there was no significant difference for BP, SQ, LS, HGS, VO2max, body mass, body fat percentage and CMJ (p> 0.05). CONCLUSION: CF Barbara workout was more effective in maintaining strength endurance performances, and RT in maintaining maximum strength performances. According to the individual performance needs of athletes, reasonable training method can be used to prevent performance decrement in the strength domain.

scholarly journals Body mass index and waist circumference are better predictors of insulin resistance than total body fat percentage in middle-aged and elderly Taiwanese

Medicine ◽  
2017 ◽  
Vol 96 (39) ◽  
pp. e8126 ◽  
Author(s):  
Yiu-Hua Cheng ◽  
Yu-Chung Tsao ◽  
I-Shiang Tzeng ◽  
Hai-Hua Chuang ◽  
Wen-Cheng Li ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Body Mass Index ◽  
Waist Circumference ◽  
Body Mass ◽  
Body Fat ◽  
Body Fat Percentage ◽  
Middle Aged ◽  
Fat Percentage ◽  
Total Body Fat ◽  
Total Body

The Effect of Resistance Training in Healthy Adults on Body Fat Percentage, Fat Mass and Visceral Fat: A Systematic Review and Meta-Analysis

2021 ◽  
Author(s):  
Michael A. Wewege ◽  
Imtiaz Desai ◽  
Cameron Honey ◽  
Brandon Coorie ◽  
Matthew D. Jones ◽  
...  
Keyword(s):  
Systematic Review ◽  
Resistance Training ◽  
Body Fat ◽  
Fat Mass ◽  
Visceral Fat ◽  
Meta Analysis ◽  
Healthy Adults ◽  
Body Fat Percentage ◽  
Fat Percentage

scholarly journals The Relationship between Vitamin D Metabolites and Androgens in Women with Polycystic Ovary Syndrome

Nutrients ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1219
Author(s):  
Jakub Mesinovic ◽  
Helena J. Teede ◽  
Soulmaz Shorakae ◽  
Gavin W. Lambert ◽  
Elisabeth A. Lambert ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Vitamin D ◽  
Polycystic Ovary ◽  
Total Testosterone ◽  
Body Fat Percentage ◽  
Vitamin D Metabolites ◽  
Fat Percentage ◽  
Ovary Syndrome ◽  
Hs Crp ◽  
The Relationship

Polycystic ovary syndrome (PCOS) is the most common endocrine disorder among women of reproductive age, with hyperandrogenism present in up to 90% of affected women. Some evidence suggests a link between vitamin D deficiency and PCOS features via insulin resistance and inflammation. Our aim was to explore the relationship between biochemical markers of vitamin D status and androgens in women with PCOS. This cross-sectional study used bio-banked samples from 46 pre-menopausal women with PCOS (mean ± SD: age 30 ± 6 years; BMI 29 ± 6 kg/m2). We measured 25-hydroxyvitamin D (25[OH]D), vitamin D-binding protein (DBP), total testosterone, sex hormone-binding globulin (SHBG), and calculated the free androgen index (FAI) and bioavailable and free 25(OH)D. Fasting glucose and insulin were used to calculate the homeostatic model assessment of insulin resistance (HOMA-IR) and body fat percentage was determined via dual energy x-ray absorptiometry. High-sensitivity C-reactive protein (hs-CRP) was measured as a marker of inflammation. DBP was positively associated with total 25(OH)D and expectedly, negatively associated with free 25(OH)D. There were no associations between vitamin D metabolites and total testosterone, SHBG or FAI, even after adjusting for age, body fat percentage, HOMA-IR and hs-CRP. We found no associations between vitamin D metabolites and androgens in women with PCOS. Studies that have identified a vitamin D–androgen link have largely relied on methodology with numerous pitfalls; future studies should exclusively use gold-standard measures to confirm these findings in this population.

scholarly journals Reduced Olfactory Bulb Volume in Obesity and Its Relation to Metabolic Health Status

2020 ◽  
Vol 14 ◽  
Author(s):  
Maria Poessel ◽  
Nora Breuer ◽  
Akshita Joshi ◽  
André Pampel ◽  
Arno Villringer ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Olfactory Bulb ◽  
Eating Behavior ◽  
Body Fat ◽  
Explanatory Models ◽  
Metabolic Health ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Height Ratio ◽  
Waist Height Ratio

Smell perception plays an important role in eating behavior and might be involved in body weight gain. Since a body of literature implies that olfactory perception and function is hampered in obesity, we here investigate neuroanatomical correlates of this phenomenon. We assessed olfactory bulb (OB) volume with magnetic resonance imaging in 67 healthy participants with a body mass index (BMI) from 18.9 to 45.4 kg/m2 (mean = 28.58 ± 6.64). Moreover, we obtained psychophysiological data on olfactory ability (Sniffin’ Sticks, Food associated odor test) and self-report measurements on eating behavior. Additionally, we collected parameters associated with metabolic health in obesity (waist-hip ratio, waist-height ratio, leptin levels, body fat percentage, fat mass index, insulin resistance) to investigate recently proposed mechanistic explanatory models of why olfaction may be altered in obesity. We showed that OB volume was significantly lower in participants with obesity when compared to those of normal weight. Moreover, we found weak to moderate negative correlations between OB volume and BMI and related measures of metabolic health, especially leptin, body fat percentage, waist-height ratio and insulin resistance. However, neither OB volume nor BMI were related to olfactory function in our young and healthy sample. Nevertheless, our results provide first indications that obesity is associated with brain anatomical changes in the OBs.

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