Rehabilitation Is the Main Topic in Virtual and Augmented Reality and Physical Activity Research: A Bibliometric Analysis.

Researchers' interest in finding practical applications for virtual reality (VR) and augmented reality (AR) technologies has increased as new devices have become cheaper and more accessible, being used in entertainment, healthcare, and rehabilitation fields, among others. This study aims to provide an overview of the current state of scientific literature related to VR, AR, and physical activity (PA). A bibliometric analysis of studies published between 1994 and 2022 was conducted using The Web of Science (WoS), applying the traditional bibliometric laws and using the VOSviewer software for data and metadata processing. The results revealed an exponential increase in scientific production between 2009 and 2021 (R2 = 94%). The United States (USA) was the country/region with the most relevant co-authorship networks (72 papers); the most prolific author was Kerstin Witte, and the most prominent was Richard Kulpa. The most productive journal's core was composed of high-impact and open access journals. A great thematic diversity was found according to the most used keywords by the co-authors, highlighting concepts such as rehabilitation, cognition, training, and obesity. Then, the research related to this topic is in an exponential development phase, with great interest in the rehabilitation and sports sciences fields.

Effects of Equine-Assisted Therapies or Horse-Riding Simulators on Chronic Pain: A Systematic Review and Meta-Analysis.

Background and objectives: Chronic pain is a complex global public health problem that affects the health status, quality of life, activities of daily living, and different work-related variables. Riding a horse may lead to some benefits in chronic pain patients through the improvement of postural control and other biopsychosocial processes. Therefore, this systematic review and meta-analysis aimed to evaluate the effects of horse riding (with real or simulated horses) on chronic pain. Materials and methods: A systematic literature search was carried out in accordance with PRISMA guidelines in Web of Science (WOS) and PubMed (Medline) electronic databases. Eleven articles (seven randomized controlled trials) were selected to be included in the review. Due to some risk of bias concerns, two meta-analyses (using postintervention or change-from-baseline measures) were conducted utilizing Review Manager Software (RevMan 5.3). Results: Horse-riding simulators significantly reduced the pain levels of patients with low back pain (p = 0.03, with a SMD of -1.14 and a 95% CI from -2.16 to -0.11) using change-from-baseline measures. However, the p-value in the meta-analysis with the postintervention measures was 0.06. Regarding interventions with real horses, it was not possible to conduct a meta-analysis due to the low number of studies. Conclusion: Horse riding could be a useful exercise to reduce pain, but more studies are needed to make evidence-based recommendations and to compare the effects of horse-riding with real and simulated horses.

Influence of Body Composition on Physical Fitness in Adolescents.

Background and objectives: Childhood obesity is one of the main public health issues facing advanced societies. The Spanish population presents 28.6% overweight or obese adolescents, and Extremadura, 22.3%. Physical fitness is considered one of the most important health markers and a common predictor of morbidity and mortality caused by cardiovascular diseases. Thus, fitness tests are needed for health monitoring, especially in overweight and obese adolescents. Therefore, this study aimed to explore the relationship between body composition and physical fitness in adolescents and to analyse if there are differences in physical condition and body composition between the sexes, as well as to compare the different body mass index (BMI) categories to each other. This project also tried to find regression equations to predict the physical fitness test results. Materials and Methods: A total of 225 adolescents were recruited. Weight status was classified according to WHO 2007 standards. Body composition variables (i.e., BMI, fat mass (FM), FM percentage (FM%), and fat-free mass (FFM)) and physical fitness (standing long jump (SLJ), speed-agility (SA), cardiorespiratory fitness (CF), and handgrip strength (HS)) were assessed. Results: Significant differences were found between the sexes in body composition (FM%, FM, and FFM) and physical fitness (SLJ, SA, CF, and HS) (p < 0.001) in favour of males. Significant differences were also found in speed (p = 0.002), CF (p < 0.001), and SLJ (p = 0.004) in favour of normal-weight adolescents compared to overweight and obese adolescents. Contrarily, the outcomes revealed a significantly greater HS (p = 0.014) in favour of overweight and obese participants compared to normal-weight adolescents. Moreover, the results showed that CF and SLJ correlated inversely with BMI, FM%, and total FM. There was also a direct relationship between SA and FM percentage, as well as between HS and FFM. Finally, four fitness test predictive models are proposed based on body composition, age, sex, and BMI. Conclusions: Overweight and obese adolescents have lower levels of physical fitness than their normal-weight peers, regardless of their sex. Normal-ranged body composition values are related to a greater physical fitness in adolescents. Furthermore, this study presents several equations that can help to predict the performance of different fitness tests in adolescents.

Effects of Exergames on Quality of Life, Pain, and Disease Effect in Women With Fibromyalgia: A Randomized Controlled Trial.

OBJECTIVE: To evaluate the effects of an exergame-based intervention on a population sample of women with fibromyalgia. DESIGN: Single-blinded, randomized controlled trial with 8-week intervention. SETTING: Fibromyalgia center. PARTICIPANTS: Participants (all women) (N=83) were divided into 2 groups: an exercise group (n=42; mean age ± SD, 52.52±9.73y) and a nonexercise group (n=41; mean age ± SD, 52.47±8.75y). INTERVENTIONS: Women in the exercise group completed an 8-week exergame-based training program, which was focused on postural control and coordination of the upper and lower limbs, aerobic conditioning, strength, and mobility. Women (groups of 3) were encouraged to exercise for 120 minutes (over 2 sessions) per week. MAIN OUTCOME MEASURES: Main outcome measures included pain and disease effect, which were assessed with the Fibromyalgia Impact Questionnaire (FIQ), a specific measure for fibromyalgia. Secondary outcome measure included quality of life, which was assessed with the EuroQoL-5 Dimensions-5 Levels (EQ-5D-5L) generic instrument. RESULTS: The results showed that 97.62% of participants in the exercise group completed the 8-week intervention. The exercise group showed a significant improvement (P<.05) in the EQ-5D-5L utility index, and in 3 of 5 dimensions. For the FIQ, significant improvements were observed in the dimensions of pain, stiffness, anxiety, and feel good. The FIQ score was also reduced. The mean between-group improvement was 8.25 (95% confidence interval, 2.85-13.65). CONCLUSIONS: The results and levels of compliance/adherence suggest this exergame-based training program is an effective intervention for reducing pain and increasing health-related quality of life in women with fibromyalgia.

[Health-related quality of life in Chilean patients with chronic obstructive pulmonary disease]. / Calidad de vida relacionada con la salud en personas chilenas con enfermedad pulmonar obstructiva crónica.

BACKGROUND: Chronic obstructive pulmonary disease (COPD) has a relevant impact on health-related quality of life (HRQoL). Short Form 6 dimensions (SF-6D) quality of life tool allows researchers to calculate preference-based utilities using data from SF-12 or SF-36 questionnaires. AIM: To provide normative values of SF-6D derived from SF-12 for Chilean patients with COPD. MATERIAL AND METHODS: SF-6D utility index was calculated using data from the 2009/2010 Chilean National Health Survey. Sixty-nine male and 120 female patients with COPD participated in the survey. Data was stratified by gender, age, region, marital status, smoking status, monthly incomes, educational level and area. RESULTS: The mean (± SD) SF-6D utility index for Chilean patients with COPD was 0.65 ± 0.15. The scores for men and women were 0.68 ± 0.15 and 0.64 ± 0.15, respectively. Patients with high incomes and educational level reported higher SF-6D scores. Ceiling effect was not a limitation when SF-6D was used in these Chilean patients. CONCLUSIONS: The current study provides normative values of SF-6D derived from SF-12 for Chilean patients with COPD.

Validation and comparison of 15-D and EQ-5D-5L instruments in a Spanish Parkinson's disease population sample.

PURPOSE: To contribute to the ongoing discussion on the choice of a preference-based health-related quality of life (HRQoL) instrument to be used in cost-effectiveness analysis by studying and comparing the validity, sensitivity and relative efficiency of 15-D and EuroQol 5D 5L (EQ-5D-5L) in a Spanish Parkinson's disease (PD) population sample. METHODS: One hundred and thirty-three volunteers were asked to complete an interview using 15-D and EQ-5D-5L. Spearman's rank correlation coefficient (r) was used to test the convergent validity of these instruments with specific PD measures. Sensitivity and efficiency were compared using receiver operating characteristic (ROC) curves and relative efficiency statistic, respectively. RESULTS: A strong correlation (r > 0.65; p < 0.001) was found between both 15-D and EQ-5D-5L utilities with the summary score of the PDQ-8, and a strong correlation (r > 0.50; p < 0.001) was found between 15-D and EQ-5D-5L utilities with the EQ-VAS. The areas under the ROC of both instruments all exceeded 0.5 (p < 0.001). The 15-D instrument was 4.1-29.8 % less efficient at detecting differences between patients with optimal HRQoL, while this instrument was 11 % more efficient at detecting differences between patients at mild and moderate to strong severity of the PD symptoms. CONCLUSIONS: 15-D and EQ-5D-5L are showed to be valid and sensitivity generic HRQoL measures in Spanish PD patients with both instruments showing similar HRQoL dimension coverage and ceiling/floor effects. The 15-D has better efficiency and greater sensitivity to detect clinical changes in PD severity of the symptoms meanwhile the EQ-5D-5L is better to detect clinical HRQoL changes. Additionally, the EQ-5D-5L questionnaire requires less time than 15-D to be administered, and it might be more appropriate for studies conducted in Spain, since a country-specific "value set" is available for this instrument and not for the 15-D.

Validation of a Questionnaire to Analyze Teacher Training in Inclusive Education in the Area of Physical Education: The CEFI-R Questionnaire.

Inclusive education is a right that has captured the attention of public institutions, researchers, and teaching professionals around the world. The beliefs and perceptions of teachers are a fundamental axis in knowing the state of these professionals regarding this ethical principle, allowing them to develop and implement different strategies. This study aims to explore the reliability and factor structure of the Evaluation of Teachers' Preparation for Inclusion (CEFI-R) questionnaire among physical education teachers. The sample consisted of 789 Spanish in-service teachers who completed the questionnaire to assess their readiness for inclusion in this subject. Exploratory and confirmatory factor analyses as well as reliability testing were carried out. A factor structure with four dimensions (conception of diversity, methodology, support, and community participation) was obtained. These dimensions consisted of 17 items with good and excellent goodness-of-fit values. In addition, a high reliability was obtained (Cronbach's Alpha = 0.71-0.93). Therefore, the CEFI-R could be considered a valid and reliable tool to analyze physical education teachers' perceptions of their preparedness for inclusive education.

A Cross-Sectional Study on the Associations between Depression and Anxiety, Medication Use for These Diseases and Physical Activity Level in Spanish People with Hypertension.

Hypertension (HTN) has a high prevalence in the overall population, affecting people's mental health. Physical Activity (PA) has proven to be an effective tool to improve mental health. This study analyzed the associations between Depression and Anxiety prevalence, medication use for these disorders (antidepressants and anxiolytics) and Physical Activity Level (PAL) in people with HTN. A cross-sectional study was conducted with data from the Spanish National Health Survey 2017 (ENSE2017) with a final sample of 3228 individuals over 15 years of age with HTN who resided in Spain. Data normality was assessed through the Kolmogorov-Smirnov test. Associations between Depression and Anxiety prevalence, antidepressant and anxiolytic use and PAL were studied using a chi-square test. Possible differences between Depression and Anxiety prevalence and medication use according to the PAL were analyzed with a z-test for independent proportions. Depression or Anxiety and antidepressant and anxiolytic use odds ratios (OR) were calculated for every PAL group, taking the "Very Active" group as a reference. Risk factors were evaluated using multiple binary logistic regression. Dependency relationships were found between Depression and Anxiety prevalence, antidepressant and anxiolytic use and PAL (p < 0.001). The Inactive group displayed the highest prevalence and medication use according to their PAL (p < 0.05). Higher ORs for Depression or Anxiety and pharmacological treatments used were also found in the Inactive group compared to the other PAL groups.

Is Psychological Distress Associated with Self-Perceived Health, Perceived Social Support and Physical Activity Level in Spanish Adults with Diabetes?

Depressive and anxiety symptoms are common in people with type 1 and type 2 diabetes mellitus. Physical activity and social support may prevent or reduce psychological distress in this population. This study aimed to analyse the associations between psychological distress, self-perceived health (SPH), perceived social support (PSS) and physical activity level (PAL) in adults with a diabetes mellitus diagnosis from Spain. A cross-sectional study based on data from the Spanish National Health Survey (ENSE2017) with a final sample of 1006 individuals with diabetes mellitus aged between 15 and 70 years, who completed the Adult Questionnaire. Some of the items from this survey were taken from existing questionnaires: the Goldberg General Health Questionnaire (GHQ-12) for Mental Health status and psychological distress, the Duke-UNC-11 Functional Social Support Questionnaire for PSS and the International Physical Activity Questionnaire (IPAQ) for PAL. A descriptive analysis and non-parametric statistical tests were carried out, including correlation analysis, multiple binary logistic regression and linear regression model calculations. It was found that SPH was related to PAL (p < 0.001): positive SPH prevalence was higher in the Active and Very Active groups (p < 0.05). Weak inverse correlations were found between the GHQ-12 and the PAL (rho: -0.230; p < 0.001) and PSS (rho: -0.234; p < 0.001). Physical inactivity and lower PSS were risk factors for negative SPH and worst physiological outcomes. Thus, higher PAL and PSS were positively correlated with SPH and lower psychological stress in Spanish adults with diabetes mellitus.

Depression, Anxiety and Antidepressants and Anxiolytics Use in Spanish Informal Caregivers according to the Physical Activity Frequency: EHSS 2014-2020.

Depression and anxiety are two of the most common mental diseases both in formal and nonformal caregivers. Physical activity during leisure time seems to have benefits on their practitioner's mental health. This study aimed to analyze the associations between physical activity frequency (PAF) and depression and anxiety status, as well as antidepressant and anxiolytic use in Spanish nonformal caregivers. A cross-sectional study with data from the 2014 and 2020 European Health Interview Surveys in Spain (EHSS) including 4520 Spanish nonformal caregivers was carried out. The PAF was found to be related to depression and anxiety, as well as antidepressants and anxiolytics use (p < 0.001), with the highest proportions of these variables found in the inactive population (p < 0.05), while the active and very active populations showed the lowest proportions (p < 0.05). Weak but statistically significant correlations were found between all variables of interest (p < 0.001). Being female, older, and dedicating more hours per week to caregiving and caring for nonfamily members were found to have increased risks of depression, anxiety and antidepressants or anxiolytics use. Nonformal caregivers who were not physically active during their leisure time had higher mental disorders and psychotropic drug use proportions than the active and very active caregivers. Thus, increasing nonformal caregivers' PAF could be a protective tool.

Attitudes towards Peers with Disabilities among Schoolchildren in Physical Education Classes.

All children, including those living with disabilities, have the right to be provided with Inclusive Education (IE) together with appropriate support in scholarly settings. A key factor for educational inclusion is peers' attitudes towards disabilities, which impact disabled students' social participation and learning. Physical Education (PE) classes represent an opportunity for students with disabilities to get psychological, social, health, and educational benefits. This study aimed to assess Spanish students' attitudes regarding their peers with disabilities during PE lessons and to explore possible differences between gender, school location, and age group. The sample consisted of 1437 students from public schools in Extremadura (Spain) from the primary and secondary stages. Participants completed the Attitude towards Students with Disabilities in Physical Education (EAADEF-EP) Questionnaire. The Mann-Whitney U test was carried out to establish differences in scores according to sex, school location, age group, and correlations between age and item scores using the Spearman's Rho test. The results displayed significant differences in the total and item scores considering sex and centre location, with good reliability values (Cronbach's alpha = 0.86). The EAADEF-EP Questionnaire has proven to be a quick, easy, and inexpensive tool to assess attitudes. Girls and participants whose school was in a rural setting had better attitudes towards inclusion. This study's results highlight the importance of carrying out educational actions and programs to improve students' attitudes towards their peers with disabilities considering the influences of the studied variables.

Association between GHQ-12, Duke-UNC-11, Physical Activity, and Self-Perceived Health in Spanish Adults with Cancerous Tumours: A Cross-Sectional Study.

Background: In Spain, people who have overcome some type of cancer have significantly worse self-perceived health (SPH) and higher rates of depression than people who have never suffered any type of cancer. Objective: to explore the relationships among physical activity levels (PAL), perceived social support (PSS), and SPH in terms of mental health and its dimensions in Spanish adults with cancerous tumours. Methods: A correlational study rooted in the National Health Survey 2017 for adults was carried out, including 627 Spanish residents who reported having malignant tumours. Results: A dependent association was found between PAL and SPH (p < 0.001). The mental health mean score decreased as PAL increased for the total sample and for both sexes, separately (p < 0.001). Low reverse associations were also observed between PAL and mental health (rho: −0.274; p < 0.001), successful coping (rho: −0.239; p < 0.001) and self-confidence (rho: −0.264; p <0.001). Moreover, PSS weakly and inversely correlates with mental health (r: −0.225; p < 0.001), successful coping (r: −0.218; p < 0.001) and self-confidence (r: −0.231; p < 0.001). A binary logistic model showed that active and very active people presented less threat of poor SPH, as did people with higher PSS (p < 0.001). Conclusions: Greater levels of physical activity are associated with larger mean scores in the three dimensions of mental health, perceived social support and self-perceived health in people with cancerous tumours.

Higher physical activity level and perceived social support is associated with less psychological distress in people with anxiety.

Introduction: Anxiety is one of the most prevalent mental illnesses in first world societies, generating discomfort in the people who suffer from it, and high expenses and economic losses in the society. The physical activity (PA) performed, together with the perceived social support (PSS) by people with anxiety could be related to the psychological distress of people with anxiety. Objectives: To study the relationships between mental health and its dimensions, through Golberg's General Health Questionnaire (GHQ12), and the level of PA (PAL) and the PSS in the Spanish adult population with anxiety. Hypothesis: A higher PAL, and a higher PSS, is related to a lower psychological distress in this population. Design and Methodology: This study included 1,661 adults with anxiety, residents in Spain. It was a cross-sectional study with data obtained from the Spanish National Health Survey. A Kolmogorov-Smirnov test was applied to examine the data distribution of the variables. The median and interquartile range were used to characterize the sample for continuous variables, and absolute and relative frequencies were used for categorical variables. The Mann-Whitney U test was used to examine the differences between sexes. Dependence between PAL and sex was studied using the chi-square statistic. A Krustal-Wallis test was used to evaluate the existence of differences in the baseline medians on the GHQ-12, according to PAL level. Finally, the correlations between mental health and its dimensions with PAL and the Duke-UNC-11 scores were analysed, obtaining Spearman's rho and Pearson's correlation coefficient. Results: Moderate inverse correlations were found between the GHQ-12 and: PAL (rho: -0.219); PSS (r: -0.347). PAL and PSS presented moderate inverse correlations with successful coping (rho: -0.206 and r: -0.325), self-esteem (rho: -0.222 and r: -0.333) and stress (rho: -0.158 and r: -0.288). Conclusions: Greater PAL and social support are associated with reduced psychological distress in people with anxiety.

A Cross-Sectional Study on Physical Activity and Psychological Distress in Adults with Asthma.

Physical Activity (PA) could contribute to decreasing psychological distress and improving Self-Perceived Health (SPH) in adults with Asthma. The main objective of this study was to analyse the associations between the Physical Activity Level (PAL) Perceived Social Support (PSS) and Mental Health, using the Goldberg General Health Questionnaire (GHQ-12), and SPH in the adult population with Asthma. This descriptive cross-sectional study is based on data from the 2017 Spanish National Health Survey, including 1040 participants with Asthma in the study. The Kruskal-Wallis test was performed to study the hypothetical differences between the PAL and the different variables derived from the GHQ-12. In addition, correlations between the variables generated and the items of the GHQ-12, together with the PAL and the Duke-UNC-11, were analysed using Spearman's rho correlation coefficients. Inverse correlations were found between Mental Health and PSS (rho: -0.351) and between Mental Health and PAL (rho: -0.209), as well as in the rest of the GHQ-12 items: successful coping (rho: -0.197), self-esteem (rho: -0.193) and stress (rho: -0.145). The more active subjects had better SPH. Therefore, the research showed how higher PAL and positive SPH are related to lower psychological distress in adults with Asthma.

Effects of Ganoderma lucidum and Ceratonia siliqua on blood glucose, lipid profile, and body composition in women with fibromyalgia.

INTRODUCTION: Introduction: fibromyalgia (FM) is a chronic rheumatic disorder that is related to high levels of cholesterol, high values of diastolic pressure, higher waist-to-hip-ratio (WHR), and higher body mass index. Objectives: the aim of this study was to evaluate the effects of Ganoderma lucidum (GL) and Ceratonia siliqua (CS) on blood parameters and anthropometrical measures in women with fibromyalgia. Methods: a double-blind randomized pilot trial was carried out. One group took 6 g/day of micro-milled carpophore powder of GL for 6 weeks, while the second group took the same dose of CS flour. Fasting glucose, cholesterol, triglycerides levels, weight, fat mass, muscular mass, waist-hip ratio, and blood pressure were assessed. Results: our results did not show any statistically significant differences in any of the outcome measures, even if there was a CS tendency to reduce fasting glucose levels and increase WHR. Conclusions: our results did not support the utility of both GL and CS as nutritional supplements to control blood parameters and anthropometric measures as assessed in women with fibromyalgia. Due to the limitations of the research, additional studies will be necessary to confirm our findings.

INTRODUCCIÓN: Introducción: la fibromialgia (FM) es una afección reumática crónica que está relacionada con altos niveles de colesterol, altos valores de presión diastólica, una mayor relación cintura-cadera y un mayor índice de masa corporal. Objetivos: el objetivo de este estudio fue evaluar los efectos de Ganoderma lucidum (GL) y Ceratonia siliqua (CS) sobre los parámetros sanguíneos y antropométricos de mujeres con fibromialgia. Métodos: se realizó un ensayo piloto aleatorizado con doble ciego. Un grupo tomó 6 g/día de carpóforos micromolidos de GL durante 6 semanas, mientras que el segundo grupo tomó la misma dosis de harina de CS. Se evaluaron los niveles de glucosa, colesterol y triglicéridos, el peso, la masa grasa, la masa muscular, la relación cintura-cadera y la presión arterial. Resultados: los resultados no han evidenciado ninguna diferencia estadísticamente significativa entre el GL y la CS en ninguna de las medidas analizadas, aunque hubo tendencia de la CS a reducir los niveles de glucosa y aumentar la relación cintura-cadera. Conclusiones: los resultados obtenidos indican que la suplementación de la dieta con GL y CS no tiene efectos positivos sobre los parámetros sanguíneos y antropométricos analizados en las mujeres con fibromialgia. Debido a las limitaciones del estudio, será necesario confirmar estos datos con ulteriores investigaciones.

Influence of Body Composition on Physical Literacy in Spanish Children.

BACKGROUND: Childhood obesity is a major health challenge in modern societies; therefore, prevention and management policies are needed. This study aims to establish the level of Physical Literacy (PL) in overweight and non-overweight children in Extremadura (Spain), analysing the potential differences between them and exploring their relationships with body composition. METHODS: A single-measure cross-sectional study was performed with 135 children, who were taken anthropometric measurements and administered The Canadian Assessment of PL Development (CAPL-2) to assess their level of PL. The CAPL-2 covers four domains and participants to be classified into four levels: beginning, progressing, achieving, and excelling. Statistical analysis included descriptive and correlations. RESULTS: Significant differences between overweight and non-overweight participants were found. Non-overweight participants had higher scores in all the domains included in PL, with the PL level of overweight children mainly being in the two lowest levels. Inverse correlations between body composition variables and PL in all domains (r from -0.223 to -0.507) were found, except for the knowledge domain. CONCLUSIONS: Most of the non-overweight children had higher levels of PL than their overweight counterparts. The PL of overweight children was significantly lower compared to non-overweight children. Healthier body composition values were associated with a better PL.

Spanish Translation and Cultural Adaptation of the Fibromyalgia Knowledge Questionnaire.

INTRODUCTION: Fibromyalgia (FM) translates into a reduction in the quality of life of people who suffer from it, being a chronic disease of unknown etiology. One of the most widespread treatments includes the combination of patient education, along with other components. At the educational level, the Fibromyalgia Knowledge Questionnaire (FKQ) is a tool that assesses knowledge of fibromyalgia. OBJECTIVE: To obtain the translation and cultural adaptation of the FKQ questionnaire into Spanish, as well as its readability, in addition to knowing the relationship between knowledge of the disease and the level of disability. METHOD: In phase one, a translation-back translation and an evaluation of the readability of the questionnaire was carried out from INFLESZ, while in phase two, the questionnaire was passed to women with FM to detect their knowledge of the disease. A total of 49 women participated, with a mean age of 54.48 years. RESULTS: The Spanish version of the FKQ questionnaire was rated by the participants in all its items as "clear and understandable". The readability obtained by the questionnaire was similar to its original version, with both totals being in the "normal" range, following the INFLESZ ranges. Regarding the patients' knowledge about FM, the component in which the highest score was obtained was physical activity (80% correct), while the one that obtained the worst score was knowledge about medication (50% correct). In addition, an inverse correlation was obtained between the FKQ and the FIQ (Fibromyalgia Impact Questionnaire) (r = -0.438; p < 0.01). CONCLUSIONS: The FKQ has been translated and culturally adapted, obtaining a correct understanding by the participants, as well as a degree of readability similar to the original questionnaire. Furthermore, it was obtained that, the lower the level of knowledge of the sick person, the greater the disability.

CHU9D Normative Data in Peruvian Adolescents.

BACKGROUND: Due to the vulnerability to protective and risk factors during adolescence, there is a growing interest in the study of health-related quality of life (HRQoL) at this stage. The CHU9D is a generic and practical HRQoL instrument that provides values on all dimensions of self-perceived health, in addition to providing utilities and a cost-utility assessment fee, unlike other instruments. This study was conducted with an adolescent population in Peru. The main objective of this article is to report the normative values of the CHU9D questionnaire in Peruvian adolescents. METHODS: The CHU9D questionnaire was administered to Peruvian adolescent students. A total of 1229 young people participated in the survey. The CHU9D score was reflected as a function of gender, age, weight, height, and educational level. RESULTS: The mean CHU9D utility index for the total sample was 0.890; this rating was significantly better for boys with 0.887 and girls with 0.867. The ceiling effect was higher for male adolescents with 32.6 than for female adolescents. CONCLUSIONS: The results of the present study show that adolescents in school show a positive perception of HRQoL. It is also concluded that the CHU9D instrument can be effectively applied to economic evaluations for interventions to improve the quality of life of adolescents.

Bibliometric Analysis of Studies on Coffee/Caffeine and Sport.

This article provides an empirical overview of coffee/caffeine studies in relation to sport worldwide, an incipient but growing relationship that has existed since 1938, although systematized over time since 1999. The extracted articles were examined using a bibliometric approach based on data from 160 records stored in the Web of Science (JCR) between 1938 and August 2021, applying traditional bibliometric laws and using VOSviewer for data and metadata processing. Among the results, these articles highlight an exponential increase in scientific production in the last two decades, with a concentration in only 12 specific journals, the hegemony of the USA among the co-authorship networks of worldwide relevance, and the thematic and temporal segregation of the concepts under study. This article concludes a high fragmentation of the authors with the highest level of scientific production and an evolution of almost 20 years in relevant thematic topics, and a concurrent concentration in three large blocks: (1) coffee consumption and risk factors, (2) health and coffee consumption, and (3) metabolism and sport correlated with the intake of coffee, which are distanced in time, providing evidence of an evolution that gives way to the irruption of alternative visions in the relationship of coffee and caffeine with sport.

Normative Values of Height, Bodyweight and Body Mass Index of 12-17 Years Population from Extremadura (Spain).

Background: Growth charts constitute an essential tool for monitoring adolescents' development. In Extremadura, the percentile growth charts by Faustino Orbegozo Foundation are used. However, they are based on Basque Country population data. Considering socioeconomic differences between Spanish regions, growth chart data could not be appropriate. Aims: to describe the percentile distribution of adolescents from Extremadura and compare these percentiles with those proposed by the Faustino Orbegozo Eizaguirre Foundation that are currently applied in the Extremadura Health Service. Methods: A descriptive cross-sectional study was conducted. A total of 4130 adolescents (12-17 years) participated into the study. Bodyweight and height were assessed. Results: Significant differences were found comparing real measured values with commonly used reference tables for bodyweight at all ages between 12 and 13 years and at 14 years in both gender (p < 0.05). Differences were also found in boys at 15, 16.5 and 17 years (p < 0.05). Regarding height, significant differences were reported at 12, 13, 14.5, 15, 16.5 and 17 years old (p < 0.05) in males; while females' results only revealed differences at 12, 12.5, 14.5 and 15.5 years (p < 0.05). BMI outcomes showed differences in both gender at 12, 12.5, 13, 14 and 15 years old (p < 0.05). Differences were also found at 16 and 14.5 years for boys and girls, respectively (p < 0.05). Conclusion: Bodyweight, height and BMI of adolescents from Extremadura differ of the reference values currently applied. Hence, this study's outcomes suggest the need to use new indicators, adapted to the physical and anthropometric reality of children and young people to avoid the possible normalisation of situations of thinness, overweight or obesity.