Muscle Quality Index in Morbidly Obesity Patients Related to Metabolic Syndrome Markers and Cardiorespiratory Fitness.

BACKGROUND: Muscle quality index (MQI) is an emerging health indicator obtained by dividing handgrip strength by body mass index (BMI) that needs to be studied in morbidly obese patients (defined by BMI ≥ 35 kg/m2). OBJECTIVE: To determine the association between MQI, metabolic syndrome (MetS) markers, and cardiorespiratory fitness (CRF), and as a second objective to determine the potential mediation role of MQI in the relationship between abdominal obesity and systolic blood pressure (SBP) in this sample. METHODS: This cross-sectional study included 86 severely/morbidly obese patients (age = 41.1 ± 11.9 y, nine men). MQI, metabolic syndrome markers, CRF, and anthropometric parameters were measured. Two groups were developed according to MQI; High-MQI (n = 41) and Low-MQI (n = 45). RESULTS: The Low-MQI group reported higher abdominal obesity (High-MQI: 0.7 ± 0.1 vs. Low-MQI: 0.8 ± 0.1 WC/height; p = 0.011), SBP (High-MQI: 133.0 ± 17.5 vs. Low-MQI: 140.1 ± 15.1 mmHg; p = 0.048), and lower CRF (High-MQI; 26.3 ± 5.9 vs. Low-MQI; 22.4 ± 6.1 mL/kg/min, p = 0.003) than the High-MQI group. Waist-to-height ratio (ß: -0.07, p = 0.011), SBP (ß: -18.47, p = 0.001), and CRF (ß: 5.21, p = 0.011) were linked to MQI. In a mediation model, the indirect effect confirms that MQI is a partial mediator of the association between abdominal obesity with SBP. CONCLUSIONS: MQI in morbidly obesity patients reported an inverse association with MetS markers and a positive association with CRF (VO2max). It mediates the relationship between abdominal obesity and SBP.

The Mediating Role of the Muscle Quality Index in the Relation of Screen Time and Abdominal Obesity with Health-Related Quality of Life in Chilean Schoolchildren.

Screen time (ST) and abdominal obesity have a negative effect on health-related quality of life (HRQoL). However, there is little information regarding the mediating role of the muscle quality index (MQI) in these relationships. The aim of the present study was to investigate the association between HRQoL, physical status (i.e., anthropometrics and fitness), lifestyle (i.e., ST and physical activity), and the MQI, and then to determine the potential mediating role of the MQI in the relation of ST and abdominal obesity with HRQoL in Chilean schoolchildren. The cross-sectional study included 750 schoolchildren (girls, n = 332 and boys, n = 418) aged between 10 and 14 years (11.73 ± 1.08 y). MQI, lifestyle, fitness parameters, waist-to-height ratio (WtHR) and HRQoL were measured. HRQoL presented a significant correlation with WtHR (r: -0.19), VO2max (r: 0.20), physical activity after school (r: 0.26), ST (r: -0.26) and MQI (r: 0.15). According to MQI, the high-MQI group reported higher HRQoL than the low-MQI group (low MQI: 36.10 ± 3.63 vs. high MQI: 37.43 ± 4.00, p < 0.001). In the mediation model, ST and abdominal obesity were negatively linked to HRQoL; the indirect effect confirmed that MQI is a partial mediator in the relation between ST and HRQoL (indirect effect = -0.04; SE = 0.02; 95% CI: -0.09, -0.01) and in the relation between abdominal obesity and HRQoL (indirect effect = -1.81; SE = 0.83; 95% CI: -3.41, -0.40). In conclusion, MQI is related to better HRQoL in schoolchildren, and the negative relation of ST and abdominal obesity with HRQoL is mediated by MQI.

Exercise Training Program Improves Subjective Sleep Quality and Physical Fitness in Severely Obese Bad Sleepers.

BACKGROUND: Sleep quality is an important modulator of neuroendocrine function, as sleep problems are related to metabolic and endocrine alterations. OBJECTIVE: The main objective was to determine the effects of an exercise training program on the sleep quality of severely obese patients with sleep problems. The secondary objective was to determine the relationship between fitness and anthropometric parameters with sleep quality scores. METHODS: Thirty severely obese patients participated in 16 weeks of PA intervention (age: 39.30 ± 11.62 y, BMI: 42.75 ± 5.27 kg/m2). Subjective sleep quality, anthropometric parameters, and fitness (i.e., handgrip strength and cardiorespiratory fitness) were measured. RESULTS: Two groups were defined as good sleepers (n = 15, 38.06 ± 12.26, men = 1) and bad sleepers (n = 15, 40.53 ± 11.23, men = 3). The good sleeper group reported improvement in cardiorespiratory fitness (61.33 ± 68.75 m vs. 635.33 ± 98.91 m, p = 0.003) and handgrip strength (29.63 ± 9.29 kg vs. 31.86 ± 7.17 kg, p = 0.049). The bad sleeper group improved their cardiorespiratory fitness (472.66 ± 99.7 m vs. 611.33 ± 148.75 m, p = 0.001). In terms of sleep quality dimensions, the bad sleeper group improved their subjective sleep quality (p < 0.001), sleep latency (p = 0.045), sleep duration (p = 0.031), and habitual sleep efficiency (p = 0.015). Comparing the changes in both groups (∆), there were differences in subjective sleep quality scores (∆ = 2.23 vs. ∆ = -3.90, p = 0.002), where 86.6% of the bad sleeper group improved sleep quality (p = 0.030). An increase in handgrip strength was correlated to improving sleep quality scores (r = -0.49, p = 0.050). CONCLUSIONS: Severely obese bad sleepers improved their subjective sleep quality, the components of sleep, and cardiorespiratory fitness through an exercise training program. Improvement in subjective sleep quality was linked to an increase in handgrip strength.

Characterizing the interindividual postexercise hypotension response for two order groups of concurrent training in patients with morbid obesity.

Background: Postexercise hypotension (PEH) is a common physiological phenomenon occurring immediately after endurance training (ET), resistance training (RT), and ET plus RT, also termed concurrent training (CT); however, there is little knowledge about the interindividual and magnitude response of PEH in morbidly obese patients. Aim: The aims of this study were (1) to investigate the effect of CT order (ET + RT vs. RT + ET) on the blood pressure responses; 2) characterize these responses in responders and nonresponders, and 3) identify potential baseline outcomes for predicting blood pressure decreases as responders. Methods: A quasi-experimental study developed in sedentary morbidly obese men and women (age 43.6 ± 11.3 years; body mass index [BMI] ≥40 kg/m2) was assigned to a CT group of ET plus RT (ET + RT; n = 19; BMI 47.8 ± 16.7) or RT plus ET order group (RT + ET; n = 17; BMI 43.0 ± 8.0). Subjects of both groups received eight exercise sessions over four weeks. Primary outcomes include systolic (SBP), diastolic (DBP), mean arterial pressure [MAP], heart rate at rest [HR], and pulse pressure [PP] measurements before and after 10 min post-exercise. Secondary outcomes were other anthropometric, body composition, metabolic, and physical fitness parameters. Using the delta ∆SBP reduction, quartile categorization (Q) in "high" (Rs: quartile 4), "moderate" (MRs: quartile 3), "low" (LRs: quartile 2), and "nonresponders" (NRs: quartile 1) was reported. Results: Significant pre-post changes were observed in ET + RT in session 2 for SBP (131.6 vs. 123.4 mmHg, p = 0.050) and session 4 (131.1 vs. 125.2 mmHg, p = 0.0002), while the RT + ET group showed significant reductions in session 4 (134.2 vs. 125.3 mmHg, p < 0.001). No significant differences were detected in the sum of the eight sessions for SBP (∑∆SBP) between ET + RT vs. RT + ET (-5.7 vs. -4.3 mmHg, p = 0.552). Interindividual analyses revealed significant differences among frequencies comparing Q1 "NRs" (n = 8; 22.2%), Q2 "LRs" (n = 8; 22.2%), Q3 "MRs" (n = 9; 25.0%), and Q4 "HRs" (n = 11; 30.5%), p < 0.0001. Quartile comparisons showed significant differences in SBP changes (p = 0.035). Linear regression analyses revealed significant association between ∑∆SBP with body fat % (ß -3.826, R 2 0.211 [21.1%], p = 0.031), skeletal muscle mass [ß -2.150, R 2 0.125 (12.5%), p = 0.023], fasting glucose [ß 1.273, R 2 0.078 (7.8%), p = 0.003], triglycerides [ß 0.210, R 2 0.014 (1.4%), p = 0.008], and the 6-min walking test [ß 0.183, R 2 0.038 (3.8%), p = 0.044]. Conclusion: The CT order of ET + RT and RT + ET promote a similar 'magnitude' in the postexercise hypotensive effects during the eight sessions of both CT orders in 4 weeks of training duration, revealing "nonresponders" and 'high' responders that can be predicted from body composition, metabolic, and physical fitness outcomes.

Concurrent training and interindividual response in women with a high number of metabolic syndrome risk factors.

The non-responders (NRs) after exercise training have been poorly studied in populations with morbid obesity. The purpose of this study was to determine the NR prevalence after 20 weeks of concurrent training of morbidly obese women with a high or low number of metabolic syndrome (MetS) risk factors. Twenty-eight women with morbid obesity participated in an exercise training intervention and were allocated into two groups distributed based on a high (≥3, n = 11) or low number (<3, n = 17) of MetS risk factors. The main outcomes were waist circumference (WC), fasting plasma glucose (FPG), high-density lipids (HDL-c), triglycerides (Tg), and systolic (SBP) and diastolic (DBP) blood pressure, and secondary outcomes were body composition, anthropometric and physical fitness, determined before and after 20 weeks of concurrent training. NRs were defined as previously used technical error cut-off points for the MetS outcomes. Significantly different (all p < 0.05) prevalences of NRs between the H-MetS vs. L-MetS groups (respectively) in WC (NRs 18.2 % vs. 41.1 %, p < 0.0001), SBP (NRs 72.7 % vs. 47.0 %, p = 0.022), DBP (NRs 54.5 % vs. 76.4 %, p < 0.0001), FPG (NRs 100% vs. 64.8 %, p < 0.0001), and HDL-c (NRs 90.9 % vs. 64.7 %, p = 0.012) were observed. In addition, the H-MetS group evidenced significant changes on ΔSBP (-10.2 ± 11.4 mmHg), ΔFPG (-5.8 ± 8.2 mg/dl), ΔHDL-c (+4.0 ± 5.9 mg/dl), and ΔTg (-8.8 ± 33.8 mg/dl), all p < 0.05. The L-MetS group only showed significant changes in ΔWC (-3.8 ± 5.0 cm, p = 0.009). Comparing H-MetS vs. L-MetS groups, significant differences were observed in ∆FPG (-5.8 ± 8.2 vs. +0.3 ± 3.2 mg/dl, p = 0.027), but not in other MetS outcomes. In conclusion, 20 weeks of concurrent training promotes greater beneficial effects in morbidly obese patients with a high number of MetS risk factors. However, the NR prevalence for improving MetS outcomes was significantly superior in these more-diseased groups in SBP, FPG, and HDL-c, independent of their major training-induced effects.

The Social Distance Impacts from COVID-19 Pandemic on the Development of Two Orders of a Concurrent Training Programme for Morbidly Obese Patients.

BACKGROUND: Although there is relevant information regarding the consequences of the coronavirus SARS-CoV-2 (COVID-19), little is known about the impact of the imposed social confinement (at home) on the development of exercise training programmes in populations with morbid obesity. AIM: To describe the effects of the imposed COVID-19 confinement on the cardiometabolic health benefits acquired through a concurrent training programme that started before the pandemic in populations with morbid obesity. METHODS: This was an experimental randomized clinical study, in which sedentary morbidly obese women were assigned 1:1 to a high-intensity interval training (HIIT) plus resistance training (RT) group (HIIT + RT; n = 11; BMI 42.1 ± 6.6) or to the same exercise dose, but in different order group of RT plus HIIT group (RT + HIIT; n = 7; BMI 47.5 ± 8.4). Both groups undertook two sessions/week. When COVID-19 confinement at home started, a post-test was applied in January 2020 (Post1) and after 20 months (Post2). The main outcomes were waist circumference (WC), systolic (SBP) and diastolic blood pressure (DBP), high-density lipids (HDL-c), triglycerides (Tg), and fasting plasma glucose (FPG). RESULTS: In the HIIT + RT group, the WC showed significant increases from Post1 to Post2 (Δ + 3.1 cm, p = 0.035); in the RT + HIIT group, it decreased from Post1 to Post2 (Δ - 4.8 cm, p = 0.028). In the HIIT + RT group, SBP showed significant increases from Post1 to Post2 (Δ + 6.2 mmHg, p = 0.041); the RT + HIIT group decreased SBP from Pre0 to Post1 (Δ - 7.2 mmHg, p = 0.026) and increased DBP from Pre0 to Post1 (Δ + 8.1 mmHg, p = 0.015). Tg in the HIIT + RT group decreased from Pre0 to Post1 (Δ - 40.1 mg/dL, p = 0.023) but increased from Post1 to Post2 (Δ + 86.3 mg/dL, p < 0.0001). CONCLUSIONS: The COVID-19 social confinement worsened metabolic syndrome (MetS) outcomes that had improved from 20 weeks' RT + HIIT during the training period, such as WC, SBP, and Tg from HIIT + RT, when, worryingly, SBP increased to another more serious clinical classification in both groups.

Negative Physical Self-Concept Is Associated to Low Cardiorespiratory Fitness, Negative Lifestyle and Poor Mental Health in Chilean Schoolchildren.

Background: Evidence suggests that physical self-concept (PSC) is linked to well-being in children and adolescents. Objective: The objective was to investigate the association of PSC with mental health (i.e., depression and body image), physical status (i.e., fitness and weight status) and lifestyle (physical activity (PA) patterns and nutritional level) in Chilean schoolchildren. Methods: A total of 617 schoolchildren (n = 271 girls and n = 346 boys) aged 10−14 years participated in this study. Self-concept, depression and body image dissatisfaction were determined by questionnaires. Physical fitness, PA, screen time (ST), Mediterranean diet (MD) adherence and anthropometric parameters were also included. Results: Poor PSC was linked to bad cardiorespiratory fitness (CRF) (<42 VO2max) (OR 1.64; 95%CI 1.12−2.34; p = 0.01), severe body image dissatisfaction (OR 2.51, 95%CI 0.99−6.35; p = 0.05), ST of more than two hours a day (OR 2.1; 95%CI 1.41−3.12; p < 0.001), PA after school of no more than two hours per week (OR 1.52; 95%CI 1.08−2.13; p = 0.015) and depression (OR 1.80; 95%CI 1.1−2.92; p = 0.017). High nutritional level showed an association with general PSC and general self-concept (p < 0.05). Absence of body image dissatisfaction was related to general self-concept (p < 0.01) and physical condition dimensions (p < 0.05). Conclusions: PSC is associated with CRF, PA after school, ST and nutritional level. According to mental health variables, poor PSC is related to depression in Chilean schoolchildren. Therefore, promoting a healthy lifestyle among children should be a target of community- and school-based interventions to promote PSC.

Healthy lifestyles and physical fitness are associated with abdominal obesity among Latin-American and Spanish preschool children: A cross-cultural study.

BACKGROUND: Identifying environmental factors that influence health in children are necessary to develop preventive strategies. OBJECTIVE: To determine the association between the lifestyles of children (i.e., Mediterranean diet (MD), physical activity (PA), fitness and screen time (ST) with abdominal obesity (AO) of preschoolers from three Spanish-speaking countries (Chile, Colombia and Spain) with different socioeconomic levels and Human Development Index (HDI) indicators. MATERIAL AND METHODS: This cross-sectional study included 982 schoolchildren (aged 4-6 years; 56.8% girls) from Chile (n = 409), Colombia (n = 281), and Spain (n = 292). Body mass index (BMI), waist circumference (WC), waist-to-height ratio (WtHR), adherence to the MD, PA, ST and physical fitness were evaluated. RESULTS: Spanish preschoolers reported a lower WtHR (p < 0.001), greater physical fitness (Z-score) (p < 0.001) and higher adherence to the MD (p < 0.001) than their Chilean and Colombian peers. In addition, Colombian preschoolers had a better lifestyle (PA + ST) than their Chilean and Spanish peers (p < 0.001). Chilean preschoolers reported a higher prevalence of AO than the Spanish preschoolers (65% vs. 51.9%; p = 0.001). CONCLUSION: Lifestyle had a significant association with AO among Spanish-speaking preschool children, with physical fitness especially being a relevant factor regardless of the country of origin. The findings of the current study may support the development of public guidelines focusing on healthy lifestyles in children to create effective plans that contribute to the early treatment of AO in preschool children.

The association between modifiable lifestyle behaviour in Latin-American schoolchildren with abdominal obesity and excess weight. A comparison of Chile and Colombia.

OBJECTIVE: The purpose was to determine the association of lifestyle (i.e., Mediterranean diet [MD] adherence, physical activity [PA], screen time [ST]) and fitness with abdominal obesity (AO) and excess weight in the Chilean and Colombian schoolchildren. RESEARCH METHODS & PROCEDURES: This cross-sectional study included 969 schoolchildren, girls (n=441, 5.24±0.80 years old) and boys (n=528, 5.10±0.78 years old) from Chile (n=611) and Colombia (n=358). The body mass index (BMI), waist circumference (WC), waist-to-height ratio (WtHR), MD adherence, PA, ST and cardiorespiratory fitness (CRF) were evaluated. The association of AO and anthropometric variables with lifestyle was estimated through multiple linear regression. To determine the association between AO and lifestyle, a logistic regression and the inclusion of odds ratios (ORs) with 95% confidence intervals (CIs) were used. RESULTS: Worse CRF in Chilean children were positively correlated with WC. Excess weight in Chilean and Colombian children was positively associated with an unhealthy lifestyle. In Chilean children unhealthy lifestyle was also associated with AO based on WC≥85th percentile and AO based on WtHR≥85th percentile. In Chilean children, excess weight (BMI≥85th percentile) was positively associated with poor MD adherence. CONCLUSION: AO and excess weight were associated with an unhealthy lifestyle in Latin-American schoolchildren. Interventions to reduce the prevalence of AO should include promoting healthier lifestyle choices (i.e., increasing PA after school, reducing ST and improving CRF).

Association between relative handgrip strength and abdominal obesity, type-2 diabetes and hypertension in a Mexican population / Asociación entre la fuerza prensil relativa de la mano y la obesidad abdominal, la diabetes de tipo 2 y la hipertensión en una población mexicana

Background: handgrip strength (HGS) is a health-status parameter associated with multicomorbidity in the adult population.Objective: the aim of the present study was to determine the association between HGS (i.e., absolute and relative) and abdominal obesity (AO), type-2 diabetes (T2D), and hypertension (HT), as well as to determine the association between low relative HGS with the presence of multicomorbidity (i.e., the co-occurrence of two or more comorbidities together) in a Mexican population.Methodology: a cross-sectional study was carried out in 860 participants from the south of Mexico (661 women and 199 men). The age range evaluated was from 18 to 65 years. Assessments were made of sociodemographic data, clinical history, anthropometric parameters, and measurement of maximal HGS.Results: the regression models adjusted by age show that the presence of comorbidities (i.e., AO, HT and T2D) was linked negatively to HGS (i.e., absolute and relative). Moreover, in men, a low relative HGS in both hands reported an association with the presence of three simultaneous comorbidities (right, RR: 17.2, p < 0.001; left, RR: 11.92, p = 0.020). In women the same association was found (right, RR: 10.42, p < 0.001; left, RR: 9.90, p < 0.001).Conclusion: lower levels of relative HGS were linked to the presence of simultaneous comorbidities (i.e., the joint presence of AO, T2D and HT). Furthermore, HGS (i.e., absolute and relative) presented an inverse association with individual anthropometric and clinical parameters related to cardiovascular risk in the Mexican population. (AU)

Introducción: la fuerza prensil de la mano (FPM) es un parámetro asociado con la multicomorbilidad en la población adulta.Objetivo: el objetivo del presente estudio fue determinar la asociación entre la FPM (absoluta y relativa) y la obesidad abdominal (OA), la diabetes tipo 2 (DT2) y la hipertensión (HT), así como su asociación con la multicomorbilidad (co-occurrencia de dos o más comorbilidades conjuntas) en una población mexicana.Metodología: se presenta un estudio transversal realizado en 860 participantes del sur de México (661 mujeres y 199 hombres). El rango de edad de los participantes fue de 18 a 65 años. Se evaluaron las características sociodemográficas de la población, los parámetros clínicos y antropométricos, y la medición de la FPM máxima.Resultados:los resultados demostraron una asociación entre la disminución de la FPM (absoluta y relativa) y la presencia de comorbilidades (OA, DT2 e HT). En los hombres, la disminución de la FPM relativa reportada en ambas manos se asoció con la presencia simultánea de tres comorbilidades (derecha, RR: 17,2, p < 0,001; izquierda, RR: 11,92, p = 0,020). Se observó una asociación similar también en las mujeres (derecha, RR: 10,42, p < 0,001; izquierda, RR: 9,90, p < 0,001).Conclusión: los bajos niveles de FPM relativa se asocian con la presencia simultánea de comorbilidades (presencia conjunta de OA, DT2 y HT). Además, la FPM (absoluta y relativa) se relaciona negativamente con los parámetros clínicos y antropométricos relacionados con el riesgo cardiovascular en la población mexicana. (AU)

Association between relative handgrip strength and abdominal obesity, type-2 diabetes and hypertension in a Mexican population.

INTRODUCTION: Background: handgrip strength (HGS) is a health-status parameter associated with multicomorbidity in the adult population. Objective: the aim of the present study was to determine the association between HGS (i.e., absolute and relative) and abdominal obesity (AO), type-2 diabetes (T2D), and hypertension (HT), as well as to determine the association between low relative HGS with the presence of multicomorbidity (i.e., the co-occurrence of two or more comorbidities together) in a Mexican population. Methodology: a cross-sectional study was carried out in 860 participants from the south of Mexico (661 women and 199 men). The age range evaluated was from 18 to 65 years. Assessments were made of sociodemographic data, clinical history, anthropometric parameters, and measurement of maximal HGS. Results: the regression models adjusted by age show that the presence of comorbidities (i.e., AO, HT and T2D) was linked negatively to HGS (i.e., absolute and relative). Moreover, in men, a low relative HGS in both hands reported an association with the presence of three simultaneous comorbidities (right, RR: 17.2, p < 0.001; left, RR: 11.92, p = 0.020). In women the same association was found (right, RR: 10.42, p < 0.001; left, RR: 9.90, p < 0.001). Conclusion: lower levels of relative HGS were linked to the presence of simultaneous comorbidities (i.e., the joint presence of AO, T2D and HT). Furthermore, HGS (i.e., absolute and relative) presented an inverse association with individual anthropometric and clinical parameters related to cardiovascular risk in the Mexican population.

INTRODUCCIÓN: Introducción: la fuerza prensil de la mano (FPM) es un parámetro asociado con la multicomorbilidad en la población adulta. Objetivo: el objetivo del presente estudio fue determinar la asociación entre la FPM (absoluta y relativa) y la obesidad abdominal (OA), la diabetes tipo 2 (DT2) y la hipertensión (HT), así como su asociación con la multicomorbilidad (co-occurrencia de dos o más comorbilidades conjuntas) en una población mexicana. Metodología: se presenta un estudio transversal realizado en 860 participantes del sur de México (661 mujeres y 199 hombres). El rango de edad de los participantes fue de 18 a 65 años. Se evaluaron las características sociodemográficas de la población, los parámetros clínicos y antropométricos, y la medición de la FPM máxima. Resultados: los resultados demostraron una asociación entre la disminución de la FPM (absoluta y relativa) y la presencia de comorbilidades (OA, DT2 e HT). En los hombres, la disminución de la FPM relativa reportada en ambas manos se asoció con la presencia simultánea de tres comorbilidades (derecha, RR: 17,2, p < 0,001; izquierda, RR: 11,92, p = 0,020). Se observó una asociación similar también en las mujeres (derecha, RR: 10,42, p < 0,001; izquierda, RR: 9,90, p < 0,001). Conclusión: los bajos niveles de FPM relativa se asocian con la presencia simultánea de comorbilidades (presencia conjunta de OA, DT2 y HT). Además, la FPM (absoluta y relativa) se relaciona negativamente con los parámetros clínicos y antropométricos relacionados con el riesgo cardiovascular en la población mexicana.

Effect of COVID-19 confinement on physical activity patterns in relation to sociodemographic parameters in Spanish population.

BACKGROUND: The main purpose of the present study was to determine the sociodemographic parameters associated to physical activity (PA) patterns changes during the COVID-19 lockdown in the Spanish population. METHODS: Participants were recruited by sending a survey through various social network channels via the snowball method. A voluntary sample of 2430 individuals consisting of 1203 men and 1227 women (aged between 18 to 73 years old) from the Spanish national territory participated in this study. An online survey was performed to collect the information, which was tested through ad hoc analysis with different sociodemographic variables. Participants were a median of 34 years old (18-73 years old) with a mean BMI of 23.6 kg/m2. RESULTS: The risk factors associated with the change in PA hours during confinement showed that to do sports (ß=-56.88, 95% CI: -79.35 to -34.40, P<0.001), male sex (ß -34.78, 95%CI;-54.02 to -15.52, P<0.001) and the educational level (i.e., elementary school category) (ß=-54.21, 95%CI;-89.10 to -19.32, P=0.002) reported negative changes with hours of PA during confinement. By the contrary, the employment status (passive work) and to be student reported positive association (i.e., increase PA hours per week). CONCLUSIONS: The COVID-19 lockdown led to a reduction PA patterns in Spanish population. Mostly men showed a drastic decrease in hours of PA compared to the women's group. Likewise, the groups of people with elementary and high education showed a decrease in hours of weekly PA, as well as unemployed people.

Lifestyle mediates the relationship between self-esteem and health-related quality of life in Chilean schoolchildren.

A healthy lifestyle, including food habits, physical activity (PA) and screen time (ST), is an important factor for well-being. The main purpose of this study was to analyze the association between lifestyle (i.e., PA, ST and food habits), self-esteem and health-related quality of life (HRQoL). A second objective was to determine the association between self-esteem with HRQoL, considering the mediating effect of lifestyle. A descriptive and cross-sectional study was performed, involving both girls (n = 282, 11.86 ± 0.82 years) and boys (n = 352, 12.02 ± 0.87 years). Lifestyle, self-esteem, HRQoL and anthropometrics parameters were evaluated. The study reported that self-esteem (ß; 0.04, P = 0.49) and PA (ß; 1.15, P < 0.001) had positive association with HRQoL. By contrast,ST was linked in an inverse way to HRQoL (ß; -1.82,, P < 0.001). According to the second objective, self-esteem had a significant association with HRQoL (total effect = 0.48, p < 0.01), and ST mediated this association negatively, instead, PA and food habits positively mediated this association. In conclusion, self-esteem presented association with HRQoL and lifestyle mediates this relationship positively (PA, MD adherence) and negatively (ST). Therefore, promoting healthy lifestyle among children should be a target of community- and school-based interventions to promote well-being.

The Effects of Two Different Concurrent Training Configurations on Markers of Metabolic Syndrome and Fitness in Women With Severe/Morbid Obesity: A Randomised Controlled Trial.

Concurrent training (CT), characterised by combining both aerobic and resistance training modalities within the same session, is recognised to improve metabolic syndrome (MetS) markers, but little is known about the effects of different configurations (i.e., order) of these exercise modalities on MetS markers and the interindividual responses. The purpose of the present study was to describe the effects, and the interindividual variability, of 20weeks of two CT configurations (i.e., high intensity interval training (HIIT) plus resistance training (RT), compared with RT plus HIIT) in women with severe/morbid obesity. Overall, 26 women with severe/morbid obesity were assigned either to HIIT+RT [n=14, mean and 95%CI, 45.79 (40.74; 50.83) or RT+HIIT (n=12), 33.6 (25.30; 41.79) years]. MetS-related outcomes were waist circumference (WC, cm), systolic (SBP, mmHg) and diastolic (DBP, mmHg) blood pressure, high-density lipoprotein cholesterol (HDL-c), triglycerides (Tg), and fasting plasma glucose (FPG). Secondary outcomes were other anthropometrics, body composition, lipids, muscle strength, and the six-minute walk test (6Mwt). There were significant differences in the prevalence of nonresponders (NRs) only for WC comparing HIIT+RT 2 (18.1%) vs. RT+HIIT group 5 (50.0%), p<0.0001, but not for SBP 4 (27.2%) vs. 4 (40.0%), DBP 8 (72.7%) vs. 7 (70.0%), FPG 8 (72.7%) vs. 9 (90.0%), HDL-c 7 (63.6%) vs. 8 (80.0%), and Tg 7 (63.6%) vs. 8 (80.0%), all p>0.05. Additionally, the RT+HIIT group showed significant reductions in WC (∆ -3.84cm, p=0.015), SBP (∆ -8.46mmHg, p=0.040), whereas the HIIT+RT group elicited significant reductions only in SBP (∆ -8.43mmHg, p=0.022). The HIIT+RT promoted a lower prevalence of NRs than the RT+HIIT configuration on WC, and overall, there were slightly more beneficial training-induced effects on markers of MetS in the RT+HIIT group compared to the HIIT+RT group.

Selective Attention and Concentration Are Related to Lifestyle in Chilean Schoolchildren.

The objective of this investigation was to determine the association between selective attention and concentration with physical fitness (i.e., cardiorespiratory fitness (CRF), V˙O2max, the standing long jump test (SLJ) and handgrip muscle strength (HGS)), lifestyle parameters (i.e., physical activity (PA) level, screen time (ST), sleep duration and food habits) and anthropometric measures (i.e., body mass index (BMI) and waist circumference (WC)) among Chilean schoolchildren. Two hundred and forty-eight schoolchildren (137 boys, 111 girls, 11.80 ± 1.17 and 11.58 ± 1.09 years, respectively) participated. Selective attention, concentration and lifestyle (PA, ST, sleep duration and Mediterranean diet (MD) adherence) were determined using a standard questionnaire. CRF, SLJ, HGS and anthropometric indicators (BMI and WC) were also measured. Selective attention showed a positive association with MD adherence score (ß; 5.012, p = p < 0.05). Concentration was linked inversely to ST (ß; -5.498, p = p < 0.05). Likewise, concentration presented a positive association with MD adherence (ß; 2.904, p = p < 0.05). In conclusion, children's lifestyles are related to the selective attention and concentration of children; therefore, promoting healthy habits could be a cost-effective strategy in the promotion of cognitive development, as it relates to selective attention and concentration.

The social and psychological health of children is associated with Mediterranean diet adherence items, cardiorespiratory fitness, and lifestyle / La salud social y psicológica de los niños está asociada a los ítems de la adherencia a la dieta mediterránea, la capacidad cardiorrespiratoria y el estilo de vida

Background: Mediterranean diet (MD) adherence, physical activity (PA) patterns, and physical fitness are associated with physical, social, and psychological health in children. Objective: the purpose of this study was to determine the association of items of MD adherence, fitness components, and lifestyle with psychological and social health in Chilean schoolchildren. Material and methods: this cross-sectional study included 615 schoolchildren, both girls (n = 271, 11.7 ± 1.00 years old) and boys (n = 344, 11.8 ± 1.1 years old). Anthropometric parameters, fitness components, lifestyle, health-related quality of life (HRQoL), and self-esteem were measured. Results: HRQoL showed an association with cardiorespiratory fitness (β: 0.12, p < 0.001) and PA (β: 0.32, p = 0.023). Self-esteem was inversely associated with screen time (β: -1.35, p < 0.001). Moreover, social health presented a positive association with PA after school (β: 0.06, p = 0.037). In relation to MD adherence items, HRQoL was linked to the items “Takes a fruit or fruit juice every day” (β: 1.93, p = 0.004) and “Consumes fresh or cooked vegetables > 1 time/day” (β: 1.12, p = 0.018). Self-esteem was associated to “Consumes a dairy product > 1 time/day” (β: 3.30, p = 0.030). Social health was inversely related to “Eats at a fast food restaurant ≥ 1 time/week” (β: -0.26, p = 0.003) and positively to “Consumes pasta or rice almost every day” (β: 0.35, p = 0.049). Conclusion: MD adherence items, fitness, and lifestyle were linked to psychological and social health, therefore it is necessary to develop preventive strategies for schoolchildren to change in a positive way these modifiable lifestyle behaviors. (AU)

Antecedentes: la adherencia a la dieta mediterránea (DM), los patrones de actividad física (AF) y la condición física están asociados a la salud física, social y psicológica de los niños. Objetivo: el propósito de este estudio fue determinar la asociación entre ítems de adherencia a la DM, componentes de la condición física y el estilo de vida con la salud psicológica y social de los escolares chilenos. Material y métodos: este estudio transversal incluyó a 615 escolares, niñas (n = 271, 11,7 ± 1,00 años) y niños (n = 344, 11,8 ± 1,1 años). Se midieron parámetros antropométricos, componentes de la condición física, estilo de vida, calidad de vida relacionada con la salud (CVRS) y autoestima. Resultados: la CVRS mostró asociación con la capacidad cardiorrespiratoria (β: 0,12, p < 0,001) y la PA (β: 0,32, p = 0,023). La autoestima, por su parte, se relacionó de manera inversa con el tiempo frente a la pantalla (β: -1,35, p < 0,001). Además, la salud social presentó una asociación positiva con la AF después de la escuela (β: 0,06, p = 0,037). En relación a los ítems de adherencia a la DM, la CVRS se vinculó a los ítems “Toma una fruta o jugo de fruta todos los días” (β: 1,93, p = 0,004) y “Consume verduras frescas o cocidas > 1 vez/día” (β: 1,12, p = 0,018). La autoestima se asoció a “Consume un producto lácteo > 1 vez/día” (β: 3,30, p = 0,030). La salud social se vinculó inversamente con “Come en un restaurante de comida rápida ≥ 1 vez/semana” (β: -0,26, p = 0,003) y positivamente con “Consume pasta o arroz casi todos los días” (β: 0,35, p = 0,049). Conclusión: los ítems de adherencia a la DM, la condición física y el estilo de vida se relacionaron con la salud psicológica y social de los escolares, por lo que es necesario desarrollar estrategias preventivas para modificar de manera positiva estas conductas de estilo de vida modificables. (AU)

Syndrome Metabolic Markers, Fitness and Body Fat Is Associated with Sleep Quality in Women with Severe/Morbid Obesity.

BACKGROUND: Sleep is an important modulator of neuroendocrine function and glucose metabolism. Poor sleep quality is related to metabolic and endocrine alterations, including decreased glucose tolerance, decreased insulin sensitivity, and increased hunger and appetite. OBJECTIVE: The aim of the present study was to determine the association between sleep quality with metabolic syndrome (MetS) markers, fitness and body fat of women with severe/morbid obesity. METHODS: This cross-sectional study included 26 women with severe/morbid obesity. Fasting plasma glucose (FPG), high-density lipids (HDL-c), triglycerides (TGs), and the metabolic outcomes total cholesterol (Tc) and low-density lipids (LDL-c), systolic (SBP) and diastolic blood pressure (DBP), body composition and fitness were measured. RESULTS: Poor sleep quality showed a positive association with body fat (%) ≥ 48.2 (OR; 8.39, 95% CI; 1.13-62.14, p = 0.037), morbid obesity (OR; 8.44, 95% CI; 1.15-66.0, p = 0.036), glucose ≥ 100 mg/dL (OR; 8.44, 95% CI; 1.15-66.0, p = 0.036) and relative handgrip strength ≤ 0.66 (OR; 12.2, 95% CI; 1.79-83.09, p = 0.011). CONCLUSION: sleep quality is associated with health markers in women with severe/morbid obesity.

Speed and throwing the ball are related to jump capacity and skeletal muscle mass in university basketball players.

BACKGROUND: Speed and throw ball in basketball players are determinant skills for basketball performance. The purpose of this study was to determinate the relationship between speed and throw the ball with jump capacity and body composition in university basketball players. METHODS: A comparative descriptive study with transversal design and a quantitative approach was performed. Seventeen male University basketball players (age = 23.60±3.45 years, height = 180.41±7.99 cm and Body Mass = 86.48±20.07 Kg) completed the following test: throwing the ball (m/s), handgrip strength (kg), speed 5-20 m (i.e., with and without the ball), jumping and reactive strength. Likewise, anthropometric variables and body composition were evaluated. RESULTS: A very high correlation was found between the throw ball and the skeletal muscle mass (r=0.810, P<0.001) dominant handgrip strength (r=0.709, P<0.001) and non-dominant handgrip strength (r=0.610, P<0.01). The throw ball reported association with skeletal muscle mass (r2=0.67, P<0.001, 67% of the variance). Significant differences were found in speed with and without the ball at 10 m (P=0.003, ES=-0.854), 15 m (P=<001, ES=-1.548) and 20 m (P=<001, ES=-1.644). The speed of displacement without ball correlated high with the countermovement jump (CMJ) (r=-0.530, P≤0.05) Abalakov (r=-0.586, P≤0.05) and Drop Jump (DJ) (r=-0.685, P≤0.01) in the first 5 m. CONCLUSIONS: The speed and throwing of the ball are associated with jumping capacity and skeletal muscle mass. Therefore, it is necessary to work these capacities in the university basketball player to improve performance.

The social and psychological health of children is associated with Mediterranean diet adherence items, cardiorespiratory fitness, and lifestyle.

INTRODUCTION: Background: Mediterranean diet (MD) adherence, physical activity (PA) patterns, and physical fitness are associated with physical, social, and psychological health in children. Objective: the purpose of this study was to determine the association of items of MD adherence, fitness components, and lifestyle with psychological and social health in Chilean schoolchildren. Material and methods: this cross-sectional study included 615 schoolchildren, both girls (n = 271, 11.7 ± 1.00 years old) and boys (n = 344, 11.8 ± 1.1 years old). Anthropometric parameters, fitness components, lifestyle, health-related quality of life (HRQoL), and self-esteem were measured. Results: HRQoL showed an association with cardiorespiratory fitness (ß: 0.12, p < 0.001) and PA (ß: 0.32, p = 0.023). Self-esteem was inversely associated with screen time (ß: -1.35, p < 0.001). Moreover, social health presented a positive association with PA after school (ß: 0.06, p = 0.037). In relation to MD adherence items, HRQoL was linked to the items "Takes a fruit or fruit juice every day" (ß: 1.93, p = 0.004) and "Consumes fresh or cooked vegetables ˃ 1 time/day" (ß: 1.12, p = 0.018). Self-esteem was associated to "Consumes a dairy product ˃ 1 time/day" (ß: 3.30, p = 0.030). Social health was inversely related to "Eats at a fast food restaurant ≥ 1 time/week" (ß: -0.26, p = 0.003) and positively to "Consumes pasta or rice almost every day" (ß: 0.35, p = 0.049). Conclusion: MD adherence items, fitness, and lifestyle were linked to psychological and social health, therefore it is necessary to develop preventive strategies for schoolchildren to change in a positive way these modifiable lifestyle behaviors.

INTRODUCCIÓN: Antecedentes: la adherencia a la dieta mediterránea (DM), los patrones de actividad física (AF) y la condición física están asociados a la salud física, social y psicológica de los niños. Objetivo: el propósito de este estudio fue determinar la asociación entre ítems de adherencia a la DM, componentes de la condición física y el estilo de vida con la salud psicológica y social de los escolares chilenos. Material y métodos: este estudio transversal incluyó a 615 escolares, niñas (n = 271, 11,7 ± 1,00 años) y niños (n = 344, 11,8 ± 1,1 años). Se midieron parámetros antropométricos, componentes de la condición física, estilo de vida, calidad de vida relacionada con la salud (CVRS) y autoestima. Resultados: la CVRS mostró asociación con la capacidad cardiorrespiratoria (ß: 0,12, p < 0,001) y la PA (ß: 0,32, p = 0,023). La autoestima, por su parte, se relacionó de manera inversa con el tiempo frente a la pantalla (ß: -1,35, p < 0,001). Además, la salud social presentó una asociación positiva con la AF después de la escuela (ß: 0,06, p = 0,037). En relación a los ítems de adherencia a la DM, la CVRS se vinculó a los ítems "Toma una fruta o jugo de fruta todos los días" (ß: 1,93, p = 0,004) y "Consume verduras frescas o cocidas ˃ 1 vez/día" (ß: 1,12, p = 0,018). La autoestima se asoció a "Consume un producto lácteo ˃ 1 vez/día" (ß: 3,30, p = 0,030). La salud social se vinculó inversamente con "Come en un restaurante de comida rápida ≥ 1 vez/semana" (ß: -0,26, p = 0,003) y positivamente con "Consume pasta o arroz casi todos los días" (ß: 0,35, p = 0,049). Conclusión: los ítems de adherencia a la DM, la condición física y el estilo de vida se relacionaron con la salud psicológica y social de los escolares, por lo que es necesario desarrollar estrategias preventivas para modificar de manera positiva estas conductas de estilo de vida modificables.

Lifestyle and Sociodemographic Parameters Associated with Mental and Physical Health during COVID-19 Confinement in Three Ibero-American Countries. A Cross-Sectional Pilot Study.

BACKGROUND: The aim of the present study was to determine the association between the health-related quality of life (HRQoL) with sociodemographic parameters and lifestyle during COVID-19 confinement in Mexico, Chile, and Spain. METHODS: A cross-sectional pilot study, with 742 observations of online surveys in 422, 190, and 130 individuals from Mexico, Chile, and Spain, respectively. Sociodemographic data, presence of comorbidities, food habits, and physical activity (PA) patterns were evaluated. The HRQoL was evaluated according to the SF-36 Health Survey. The multilinear regression analysis was developed to determine the association of variables with HRQoL and its physical and mental health dimensions. RESULTS: The female sex in the three countries reported negative association with HRQoL (Mexico: ß -4.45, p = 0.004; Chile: ß -8.48, p < 0.001; Spain: ß -6.22, p = 0.009). Similarly, bad eating habits were associated negatively with HRQoL (Mexico: ß -6.64, p < 0.001; Chile: ß -6.66, p = 0.005; Spain: ß -5.8, p = 0.032). In Mexico, PA limitations presented a negative association with HRQoL (ß -4.71, p = 0.011). In Chile, a sedentary lifestyle (h/day) was linked negatively with HRQoL (ß -0.64, p = 0.005). In Spain, the highest associations with HRQoL were the presence of comorbidity (ß -11.03, p < 0.001) and smoking (ß -6.72, p = 0.02). Moreover, the PA limitation in Mexico (ß -5.67, p = 0.023) and Chile (ß -9.26, p = 0.035) was linked negatively with mental health. CONCLUSIONS: The bad eating habits, PA limitations, female sex, comorbidity presence, and smoking were parameters linked negatively with HRQoL.