Ricardo Manuel Santos Labrador

Dr. Ricardo Manuel Santos Labrador


Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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Julius BurkauskasJulius Burkauskas
Julius Burkauskas
NFNaomi Fineberg
Naomi Fineberg
KIKonstantinos Ioannidis
Konstantinos Ioannidis
SCSamuel R. Chamberlain
Samuel R. Chamberlain
HBHenrietta Bowden-Jones
Henrietta Bowden-Jones
OCOrnella Corazza
Ornella Corazza
This cross-sectional study aimed to explore specific online behaviours and their association with a range of underlying psychological and other behavioural factors during the COVID-19 pandemic. Eight countries (Italy, Spain, the United Kingdom, Lithuania, Portugal, Japan, Hungary, and Brazil) participated in an international investigation involving 2223 participants (M = 33 years old; SD = 11), 70% of whom were females. Participants were surveyed for specific type of Internet use severity, appearance anxiety, self-compassion, and image and use of performance-enhancing drugs (IPEDs). Results were compared cross-culturally. The mean time spent online was 5 h (SD = ±3) of daily browsing during the pandemic. The most commonly performed activities included social networking, streaming, and general surfing. A strong association between these online behaviours and appearance anxiety, self-compassion, and IPEDs use was found after adjustment for possible confounders, with higher scores being associated with specific online activities. Significant cross-cultural differences also emerged in terms of the amount of time spent online during the initial stages of the COVID-19 pandemic.

6 September 2023 in Retos
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RLRicardo Manuel Santos Labrador
Ricardo Manuel Santos Labrador
AVAlejandra Rebeca Melero Ventola
Alejandra Rebeca Melero Ventola
La práctica de actividad física produce beneficios a nivel físico, psíquico y social. Sin embargo, muchos adolescentes llevan un estilo de vida inactivo. El objetivo de este estudio fue conocer los motivos de práctica de actividad física de los adolescentes de la provincia de Salamanca (España) y su relación con el género, localidad de procedencia, nivel de práctica de actividad física y estado de peso. La muestra estuvo compuesta por 867 adolescentes de entre 12-16 años (14.04±1.191), siendo el 46.1% chicas (n=400) y el 53.9% (n=467) chicos. Los motivos de práctica de actividad física fueron medidos mediante la escala Physical Activity and Leisure Motivation (PALMS-e) (versión validada al contexto adolescente español), y el nivel de práctica de actividad física con el International Physical Activity Questionnaire for Adolescents (IPAQ-A). Los resultados mostraron que el factor que suscitó mayor motivación hacia la práctica de actividad física fue la condición física (3.99). El factor menos motivante fue el de expectativas ajenas (2.49). Todos los factores de la PALMS-e se correlacionaron entre sí, positivamente. Los chicos presentaron mayor nivel de motivación y los sujetos de localidades urbanas manifestaron más motivación global. Asimismo, los escolares más activos evidenciaron mayor motivación que los inactivos. El tener sobrepeso u obesidad se asoció positivamente con el factor apariencia y con el factor expectativas ajenas, mientras que presentó asociaciones negativas con el factor diversión. Como conclusión, se considera necesario conocer cuáles son los motivos de realización de AF del adolescente, con el fin de fomentar la práctica de AF entre esta población, a través de estrategias adaptadas y focalizadas en grupos reducidos, prestando especial atención al aumento de la motivación intrínseca y extrínseca del sujeto. Palabras Clave: PALMS-e; IPAQ-A; Actividad física; Motivación. Physical activity has physical, mental and social benefits. However, many adolescents lead an inactive lifestyle. The aim of this study was to find out the reasons for physical activity among adolescents in the province of Salamanca (Spain) and its relationship with gender, place of origin, level of physical activity and weight status. The sample consisted of 867 adolescents aged 12-16 years (14.04±1.191), 46.1% girls (n=400) and 53.9% (n=467) boys. The motives for physical activity were measured using the Physical Activity and Leisure Motivation scale (PALMS-e) (version validated for the Spanish adolescent context), and the level of physical activity with the International Physical Activity Questionnaire for Adolescents (IPAQ-A). The results showed that the factor that elicited the highest motivation towards physical activity was physical fitness (3.99). The least motivating factor was the factor of others' expectations (2.49). All factors of the PALMS-e correlated positively with each other. Boys showed a higher level of motivation and subjects from urban locations showed more overall motivation. Also, more active schoolchildren showed higher motivation than inactive ones. Being overweight or obese was positively associated with the appearance factor and with the external expectations factor, while it had negative associations with the fun factor. In conclusion, it is considered necessary to know the reasons why adolescents do PA, in order to encourage the practice of PA among this population, through adapted strategies focused on small groups, paying special attention to increasing the intrinsic and extrinsic motivation of the subject. Key Words: PALMS-e; IPAQ-A; Physical activity; Motivation.

1 September 2019 in Revista de Salud Pública
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RLRicardo Manuel Santos Labrador
Ricardo Manuel Santos Labrador
Objetivos Conocer la relación existente entre el nivel de práctica de actividad física y el consumo máximo de oxígeno (VO2 máx.); y analizar el nivel de práctica de AF y su relación con el género, la localidad de residencia, el porcentaje que suponen las clases de Educación Física (EF) en dicha práctica y el Índice de Masa Corporal (IMC). Métodos Participaron 89 sujetos de la provincia de Salamanca (España), de 12 a 16 años (14±1,18 años), siendo el 55,1% (n=49) hombres y el 44,9% (n=40) mujeres. Los instrumentos utilizados fueron: acelerómetro Actigraph GT3X; Test Course Navette; monitor de composición corporal Tanita MC780MA; y se recogió información sobre el género y la localidad de residencia. Resultados Únicamente, el 18% de los sujetos cumplía con las recomendaciones mínimas de AF, establecidas por la Organización Mundial de la Salud (OMS). Los chicos y los sujetos de localidades urbanas realizaban mayor cantidad total de AF. Los sujetos con menor IMC y los de género masculino poseían mejores niveles de VO2 máx. Y las clases de EF no contribuyeron de manera sustancial al total de AF semanal. Conclusiones Estos resultados pueden considerarse relevantes, con el fin de orientar programas específicos de fomento de la AF y de prevención del sobrepeso y la obesidad en adolescentes, haciendo hincapié en la población femenina, del ámbito rural y aquella con mayor IMC.

10 July 2021 in Sustainability
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RLRicardo Manuel Santos Labrador
Ricardo Manuel Santos Labrador
AMAlejandra R. Melero-Ventola
Alejandra R. Melero-Ventola
MRMaría Cortés Rodríguez
María Cortés Rodríguez
MSMercedes Sánchez-Barba
Mercedes Sánchez-Barba
EAEVA MARIA Arroyo-Anlló
EVA MARIA Arroyo-Anlló
The aim of this study was to translate and adapt the physical activity and leisure motivation scale (PALMS) into Spanish, and to analyse its validity and reliability. The sample comprised 867 adolescents, with a mean age of 14.04 ± 1.19 years, 53.9% of whom were male. During the translation process, some of the items in the instrument were modified slightly, improving its comprehensibility. On the other hand, the exploratory factor analysis did not present an adequate factor structure, so a more in-depth analysis was carried out, using item response theory and confirmatory factor analysis; the conclusion was that it would be appropriate to eliminate several items from the scale. From this, a final shortened version, consisting of 25 items, was produced, with adequate fit indices—CFI = 0.933, TLI = 0.918, SRMR = 0.042, RMSEA = 0.052 (90% CI 0.048; 0.056)—and good reliability for each of the dimensions, ranging from 0.625 to 0.835. It can be concluded that the abbreviated version of the PALMS instrument, adapted for Spanish adolescents (PALMS-e), is a valid and reliable instrument for assessing their motives for doing physical activity.

12 June 2026 in Journal of Behavioral Addictions
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ADArtemisa Dores
Artemisa Dores
Julius BurkauskasJulius Burkauskas
Julius Burkauskas
ASAgne Stanyte
Agne Stanyte
APAiste Pranckeviciene
Aiste Pranckeviciene
ICIrene P. Carvalho
Irene P. Carvalho
OCOrnella Corazza
Ornella Corazza
Background and aims: Social media increasingly shapes body image by promoting often unattainable beauty ideals. Concurrently, targeted online marketing of image- and performance-enhancing drugs (IPEDs) exploits these vulnerabilities, intensifying anxiety and fostering maladaptive behaviours such as problematic usage of the internet (PUI), compulsive exercise, and IPEDs consumption. This study explores these behaviours across nine countries and examines how PUI, excessive exercise, and IPEDs use predict appearance anxiety, aiming to inform targeted prevention strategies for at-risk populations. Methods: A total of 3,514 participants from nine countries completed a web-based survey assessing sociodemographic data, appearance anxiety (AAI), problematic internet use (PIUQ-9), excessive exercise (EAI-R), and IPEDs intake. Results: Appearance-related anxiety was observed in 12% of the participants, with the highest prevalence in Mexico (20.7%), Japan (13.8%) and Italy (13.6%). Median PUI scores were highest in Mexico (22.57) and Singapore (21.59). Excessive exercise was reported by 3.6% with no significant country differences. IPEDs use was reported by 28.3% of the sample, with the highest rates in Japan (60.6%). Logistic regression analyses revealed that PUI, excessive exercise and IPEDs use were significant predictors of appearance-related anxiety. Discussion and conclusions: The strong associations between PUI, excessive exercise, IPEDs use, and appearance anxiety underscore the complex interplay between online exposure, body image concerns and mental health. Cross-country differences suggest that socio-cultural factors influence appearance-related anxiety. These findings highlight the need for culturally sensitive interventions and policy measures that address the impact of digital media on body image, particularly to protect vulnerable populations.

30 August 2015 in Sportis. Scientific Journal of School Sport, Physical Education and Psychomotricity
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RLRicardo Manuel Santos Labrador
Ricardo Manuel Santos Labrador
En este trabajo, se presentan los datos obtenidos a través del análisis bibliométrico, de los artículos encontrados sobre la utilización del acelerómetro para la medición de la actividad física, tanto a nivel nacional como internacional, entre los años 2010 y 2014. El objetivo principal, es conocer cuál ha sido la producción científica sobre la utilización del acelerómetro, como instrumento de cuantificación de la actividad física. Los datos han sido extraídos de la base de datos: Scopus y, el número de artículos encontrados en la misma es de 2207. Las palabras clave utilizadas en la búsqueda fueron: accelerometer y physical activity. Se ha analizado la producción científica por años, revistas, autores, instituciones, países y áreas, identificando aquellos más productivos. Los resultados a nivel nacional e internacional, indican como aspectos más relevantes: la utilización del acelerómetro en gran cantidad de áreas científicas diferentes, así como que algunos organismos, autores, revistas y países, se están afianzando como referentes. Por otro lado, es importante destacar la diferencia en la productividad científica por años a nivel nacional e internacional, ya que, en la segunda se observa un crecimiento regular que no aparece en la primera.