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  1. Article ; Online: Influence of socioeconomic factors in muscle dysmorphia

    Mercedes Rizo-Baeza / Asier Martínez-Segura / Ernesto Cortés-Castell

    Jounal of Negative and No Positive Results, Vol 3, Iss 5, Pp 319-

    2018  Volume 327

    Abstract: Abstract: Introduction and objective: In muscle dysmorphia (MD) the patient thinks he is smaller and less muscular than he really is. As in other addictive diseases, its prevention and early diagnosis are the key to avoid associated disorders. It is ... ...

    Abstract Abstract: Introduction and objective: In muscle dysmorphia (MD) the patient thinks he is smaller and less muscular than he really is. As in other addictive diseases, its prevention and early diagnosis are the key to avoid associated disorders. It is established as an objective to determine if there are associated socio-demographic factors. Material and methods: Cross-sectional observational study of 140 men, between 16-45 years old, who practice bodybuilding in gyms of different socioeconomic levels, at least 6 months prior to the study, 4 days / week, 1 hour / day, who signed the informed consent and without chronic illness. The main variable was the presence of symptoms of DM using the muscle appearance satisfaction scale (44 patients) and the secondary variables were age, coexistence, children, educational level and monthly income. Frequencies were used in the qualitative variables, and averages and standard deviations in the quantitative variables, in the bivariate analysis of the Chisquare test and the t-student test respectively and the binary logistic regression (presence / absence of MD) to eliminate confounding factors, the probabilities were calculated associated Results: The gymnasts have an average age of 26.1 (SD = 7.1) years; the majority live with their parents (56.4%); they do not have children (89.3%); the academic levels are balanced and the economic income is mostly low / medium (79.3%). In the bivariate analysis, is observed a higher risk at a younger age (p = 0.027) and when they live with their parents (limit of significance). Significance is not observed with the variables having children, educational level or economic income. In the binary logistic regression these meanings are lost, although the graphic representation of the probability in relation with age seems to be a risk factor, as well as living with the parents or as a couple. Conclusion: Among men who practice bodybuilding, it is usually a risk to suffer MD, to be younger, to live together as a couple and with parents, with no ...
    Keywords muscle dysmorphia ; economic factors ; social factors ; academic training ; Medicine ; R ; Science ; Q
    Subject code 300
    Language English
    Publishing date 2018-05-01T00:00:00Z
    Publisher Asociación Para el Progreso de la Biomedicina
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Degree of Accuracy of the BMI Z-Score to Determine Excess Fat Mass Using DXA in Children and Adolescents

    David Monasor-Ortolá / Jose Antonio Quesada-Rico / Ana Pilar Nso-Roca / Mercedes Rizo-Baeza / Ernesto Cortés-Castell / Asier Martínez-Segura / Francisco Sánchez-Ferrer

    International Journal of Environmental Research and Public Health, Vol 18, Iss 12114, p

    2021  Volume 12114

    Abstract: Obesity is caused by fat accumulation. BMI Z-score is used to classify the different degrees of weight status in children and adolescents. However, this parameter does not always express the true percentage of body fat. Our objective was to determine the ...

    Abstract Obesity is caused by fat accumulation. BMI Z-score is used to classify the different degrees of weight status in children and adolescents. However, this parameter does not always express the true percentage of body fat. Our objective was to determine the degree of agreement between the fat mass percentage measured by DXA and the stratification of weight according to BMI Z-score in the pediatric age group. We designed a descriptive cross-sectional study. The patients were classified as underweight/normal weight with Z-scores between −2 and +0.99, overweight from 1 to 1.99, obese from 2 to 2.99, and very obese ≥3. We included 551 patients (47% girls), with a mean age of 11.5 ± 2.8 years (3.7–18 years). Higher BMI Z-scores were associated with a higher percentage of total fat ( p < 0.001). However, there were important overlaps between both parameters, such that the BMI Z-score classified patients with the same percentage of total fat mass as having a different nutritional status classification. In conclusion, the stratification of weight status according to BMI Z-score revealed that 46.7% of patients had a fat percentage that did not correspond to their classification. For a more accurate weight assessment in clinical practice, we recommend combining anthropometric indices with diagnostic tools that better correlate with DXA, such as electrical bioimpedance.
    Keywords BMI Z-score ; childhood obesity ; body composition ; fat mass ; growth charts ; Medicine ; R
    Subject code 796
    Language English
    Publishing date 2021-11-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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