scholarly journals The “Fat but Fit” Paradigm and Bone Health in Young Adults: A Cluster Analysis

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 518
Author(s):  
Ana Torres-Costoso ◽  
Miriam Garrido-Miguel ◽  
Luis Gracia-Marco ◽  
Purificación López-Muñoz ◽  
Sara Reina-Gutiérrez ◽  
...  

The fat but fit paradox has suggested that obese individuals with good fitness levels have lower cardiometabolic risk compared to individuals with normal weight but lower fitness levels. This paradigm has not been explored in the context of bone health. The aim of this study was to test whether categories of fat but fit paradigm assessed by body fat percentage and handgrip strength holds up in young adults and to analyze the relationship between fat but fit categories and bone outcomes. Cluster cross-sectional analyses of data from 499 young adults aged 18 to 30 from Toledo and Cuenca, Spain were conducted. Body fat percentage, handgrip strength, bone mineral content (BMC), bone mineral density (BMD), and dietary nutrients such as, proteins, magnesium, calcium, phosphorus, potassium, and vitamin D were assessed. Cluster analysis of body fat percentage and handgrip z scores resulted in a classification of four clusters that could be interpreted according to Fat Unfit (FU), Unfat Unfit (UU), Fat Fit (FF) and Unfat Fit (UF) categories. ANCOVA models showed that young adults in clusters with higher handgrip strength levels (FF, UF) and with higher key bone nutrients levels (UF) had significantly higher total BMC values than their peers in the UU and FU cluster categories, after controlling for sex, age and height. This study provides two novel conclusions in relation to the fat but fit paradigm: first, it confirms the construct of the four clusters of body fat percentage and handgrip strength, and second, it reinforces the predictive validity of the fat but fit paradigm categories, indicating the positive effect, although it may not just be a causal relationship, of muscular strength and key bone nutrients on counteracting the negative effect of obesity on bone health.

Nutrients ◽  
2016 ◽  
Vol 8 (8) ◽  
pp. 470 ◽  
Author(s):  
Maria Casale ◽  
Pamela von Hurst ◽  
Kathryn Beck ◽  
Sarah Shultz ◽  
Marlena Kruger ◽  
...  

2017 ◽  
Vol 10 (1) ◽  
pp. 251-256
Author(s):  
Cristiane da Silva Oselame ◽  
Gleidson Brandão Oselame ◽  
Oslei de Matos ◽  
Eduardo Borba Neves

Introduction: The measurement of body fat is a way to obtain information about the characteristics that can lead to a framework of certain diseases. Thus, women in postmenopausal period experience significant variations in the body composition and fat distribution. Objective: To develop an equation to estimation of the body fat percentage in women with osteopenia / osteoporosis based on anthropometric measurements easily obtainable. Methods: The sample consisted of 74 women participating in the study group of the Physical Exercise Program for Osteoporosis Federal Technological University of Paraná, all in postmenopausal period and with osteopenia or osteoporosis. It evaluated body composition and bone mineral density by absorptiometry Radiological Dual Energy (DXA), anthropometry and body circumferences (waist, abdomen and hips), and nutritional status by the Body Mass Index (BMI) as the World Health Organization classification. Results: The sample can be characterized by the following average data: age of 59.32 ± 6.96, 27.14 ± 3 BMI 90, Waist Hip Ratio of 0.85 ± 0.08 and Body fat percentage 40.35 ± 4.04. The proposed equation was Body Fat Percentage (BFP) = 14,419 + (0.405 x BMI) + (0.147 x HC) using only two predictor variables, BMI and hip circumference (PQ). Conclusion: The standard error of estimate of the proposed equation was 2.89 (R2 = 0.501) can be considered low average values for the percentage of fat in this population, suggesting that the equation can be used to estimate the percentage of body fat in postmenopausal women.


2016 ◽  
Vol 48 ◽  
pp. 525
Author(s):  
Ayland C. Letsinger ◽  
Heather L. Vellers ◽  
Jorge Z. Granados ◽  
Nick R. Walker ◽  
Madison E. Spier ◽  
...  

2021 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Feriyandi Nauli ◽  
Nurhasanah Nurhasanah ◽  
Endang Mahati ◽  
Udin Bahrudin

Background: Central obesity stands for the corner-stone of cardio-metabolic health, while nitric oxide (NO) is a major regulator of cardiovascular function. To day, the correlation between serum NO metabolites nitrate/nitrite and the obesity components in young adults remains elusive. Thus, this current study was conducted to know the correlation between serum NO metabolites levels and body fat percentage, waist circumference (WC) as well as body mass index (BMI) in young adults with central obesity.Materials and Methods: A cross-sectional study was conducted in Riau, Indonesia, involving 79 young adults aged 18-25 years, composing of 39 and 40 subjects with and without central obesity, respectively. Anthropometric measurements were performed to assess WC and BMI. Body fat percentage was measured using bioelectrical impedance analysis and serum NO metabolites levels were assessed using Griess methods.Results: Levels of serum NO metabolites were significant higher in the subjects with central obesity (168.41±12.64 μmol/L) than that of normal subjects (70.57±44.99 μmol/L, p<0.001), but the levels were no significant different between male and female subjects. Serum NO metabolites levels were strongly correlated with total body fat (r=0.618, p<0.001), visceral fat (r=0.733, p<0.001), subcutaneous fat (r=0.547, p<0.001), WC (r=0.717, p<0.001) and BMI (r=0.788, p<0.001).Conclusions: For young adults in Riau, Indonesia, levels of serum NO metabolites are higher in the central obesity group than that of the normal. In this population, body fat percentage, waist circumference and body mass index are correlated with serum nitric oxide metabolites levels.Keywords: nitric oxide, body fat percentage, young adults, central obesity


2019 ◽  
Vol 4 (3) ◽  
pp. 51
Author(s):  
Söğüt ◽  
Kaya ◽  
Altunsoy ◽  
Clark ◽  
Clemente ◽  
...  

The purposes of this study were to determine whether moderately physically active (MPA) and highly physically active (HPA) male (n = 96, age = 22.5 ± 1.7 years) and female (n = 85, age = 21.3 ± 1.6 years) young adults differed in their anthropometric obesity indices (AOIs), body fat percentage (BF%), and muscular strength, and also to examine the associations between physical activity level (PAL) and the abovementioned variables. Participants were measured for body height and weight, BF%, waist and hip circumferences, and maximal isometric grip strength. According to their PAL, estimated by the short version of the International Physical Activity Questionnaire, they were assigned to MPA and HPA subgroups. Regardless of gender, results indicated that participants in the MPA groups had significantly higher values of body weight, waist and hip circumference, BF%, and BMI than participants in the HPA groups. No significant differences were found between physical activity groups in terms of grip strength. The AOIs and BF% were found to be significantly and negatively correlated with the PAL in both genders. In conclusion, the findings of the study suggest that high habitual physical activity is associated with lower adiposity markers. However, the differences in the hand grip strength of the contrasting activity groups were negligible.


2019 ◽  
Vol 4 (4) ◽  
pp. 2473011419S0040
Author(s):  
Chris Stauch ◽  
Jesse King ◽  
Morgan Kim ◽  
David Waning ◽  
John Elfar ◽  
...  

Category: Diabetes, Hindfoot, Midfoot/Forefoot, obesity Introduction/Purpose: In recent decades, the prevalence of obesity in the United States has increased dramatically. This can be attributed in-part to the high-fat “Western Diet”. Consequentially, the economic burden of obesity to the healthcare system has rapidly increased, accounting for more than 10 percent of all medical spending in America. Furthermore, with regards to orthopedics, obesity has been shown to be a strong risk factor for musculoskeletal pain, injury, and post-operative complications. The purpose of this study was to determine the effects of high intensity cardiovascular training and controlled dietary intake on body weight, body fat percentage (BFP), and bone mineral density (BMD) in obese and non-obese mice. These results will provide a better understanding of how to optimally facilitate weight loss in obese patients. Methods: Following IAUCUC approval, 8 diet-induced obesity (DIO) C57BL/6 mice were obtained along with 6 non-obese C57BL/6 control mice. DIO mice were fed a high-fat diet (60% fat by kcal) ad libitum starting at the age of 6 weeks. Control mice were fed a standard low-fat diet (10% fat by kcal) ad libitum from birth. Starting at the age of 14 weeks, all mice underwent a controlled high intensity cardiovascular training protocol using a treadmill four times per week at 30 minute intervals. This was carried out for seven weeks including a one-week acclimation period. Speed, distance, and time spent running were all constant between groups. Mouse body weights were recorded several times per week throughout the study. Additionally, BFP and BMD were obtained bi-weekly using dual energy X-ray absorptiometry (DEXA) to assess morphophysiological changes longitudinally. Results: Preliminary investigations with a controlled exercise regimen reveal that obese mice, when fed a high-fat diet, continue to gain weight rapidly despite high intensity cardiovascular training whereas control mice maintain their weight. Following the seven-week training period, control mice gained an average of 1.25 g (p=0.41), while DIO mice gained an average of 8.55 g (p<0.001). DIO mice also showed an 8.74% increase in body fat percentage (p=0.002) while control mice showed a 0.51% decrease in body fat percentage (p=0.75). Lastly, BMD was significantly lower in DIO mice compared to controls following the exercise protocol (p<0.05). Conclusion: The results of this study support the hypothesis that a controlled exercise regimen alone is ineffective for facilitating weight loss. In fact, obese mice administered a high-fat diet actually gain weight despite undergoing a rigorous exercise program. Additionally, simple differences in dietary intake have significant effects on body weight, body fat percentage, and bone mineral density. This suggests that while exercise may play a small role in maintaining a normal weight, obesity is irreversible with exercise alone. Obese orthopedic patients should be counseled on dietary modifications before engaging in an exercise program.


Nutrients ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2760 ◽  
Author(s):  
Jose J. Gil-Cosano ◽  
Luis Gracia-Marco ◽  
Esther Ubago-Guisado ◽  
Jairo H. Migueles ◽  
Jose Mora-Gonzalez ◽  
...  

The association between vitamin D [25(OH)D] and bone health has been widely studied in children. Given that 25(OH)D and bone health are associated with muscular fitness, this could be the cornerstone to understand this relationship. Hence, the purpose of this work was to examine if the relation between 25(OH)D and areal bone mineral density (aBMD) was mediated by muscular fitness in children with overweight/obesity. Eighty-one children (8-11 years, 53 boys) with overweight/obesity were included. Body composition was measured with dual energy X-ray Absorptiometry (DXA), 25(OH)D was measured in plasma samples and muscular fitness was assessed by handgrip and standing long jump tests (averaged z-scores were used to represent overall muscular fitness). Simple mediation analyses controlling for sex, years from peak height velocity, lean mass and season were carried out. Our results showed that muscular fitness z-score, handgrip strength and standing long jump acted as mediators in the relationship between 25(OH)D and aBMD outcomes (percentages of mediation ranged from 49.6% to 68.3%). In conclusion, muscular fitness mediates the association of 25(OH)D with aBMD in children with overweight/obesity. Therefore, 25(OH)D benefits to bone health could be dependent on muscular fitness in young ages.


Sign in / Sign up

Export Citation Format

Share Document