Objective: This study investigates the relationship between lower limb strength and postural stability in single-leg stance using the Balance Master system. Methods: The research involved 64 participants divided into sedentary and physically active groups based on metabolic equivalents of task (METs) values, normal weight, overweight, and obese according to body composition. Postural control was evaluated using the Sensory Organization Test. Results: The results showed that there were no significant differences in mean and maximum lower limb strength between the groups. Furthermore, postural stability in open and closed eyes conditions did not show significant differences between the groups. However, a significant positive correlation was observed between lower limb strength and stability in single-leg stance with eyes open. Conclusions: These findings suggest that lower limb muscle strength is essential for postural stability, especially when vision is available to aid balance. The study highlights the importance of interventions focused on strengthening muscles to improve physical functionality in adults.

Objective: The objective of the study was to investigate the relationship between the level of physical activity and body composition, and the levels of motor skills and strength in overweight and obese men. Methods: The research involved 64 men. Body composition, physical activity, motor control, Motor Control Test (MCT), and strength variables were evaluated. Body composition was assessed by DXA, and the participants were classified into two groups according to the percentage of total fat mass: greater and less than 27.65%. Physical activity was assessed using accelerometry, and motor control was measured with posturography, which provided a composite score of motor performance and postural control effectiveness. Strength was assessed using hand, leg, and back dynamometers. Results: The participants with a higher percentage of body fat had a lower DSI (Dynamic Strength Index) (p < 0.001) and significantly reduced PAL (physical activity level) and energy expenditure (p < 0.001). No significant differences were found in the muscle strength of the upper limbs (p = 0.06) and lower limbs (p = 0.419). With regard to MCT, there was a significant difference between groups in the backward direction (p = 0.041), with the group with the highest percentage of body fat showing lower values. Conclusions: Individuals with a higher percentage of body fat tend to have lower levels of strength, physical activity, and energy expenditure, which can lead to impaired balance. The findings highlight the need for targeted interventions to improve body composition and levels of strength and physical activity, with a positive impact on general health and quality of life. Emphasis should be placed on improving physical activity levels in male individuals with a higher percentage of fat mass to improve their body composition and dynamic strength levels, which are beneficial to life, particularly to help improve postural control.

Background/Objectives: Childhood and adolescence are important stages of life for acquiring healthy habits. There is a high prevalence of sedentary lifestyles worldwide during these ages, which negatively impacts health. This is attributed, in part, to excessive time spent engaging in sedentary behaviors. The aim of this study was to assess the time spent on sedentary behaviors and their relationship with physical activity levels in children and adolescents in the Community of Madrid. Methods:A total of 26,729 participants aged 10–17 from various schools and institutes took part in this study. The International Physical Activity Questionnaire Short Form (IPAQ-SF) was used, and they were asked about the time they spent on different leisure time habits (specific sedentary behaviors and organized physical activity). A generalized linear model was used to analyze the association between the time spent in sedentary activities and the time spent in physical activity. Results: The results revealed that children and adolescents engage in low levels of physical activity and most of them spend considerable time in sedentary behaviors such as studying, watching television, or using social media. Completing school homework (Coef: 1.23, 95% CI: −0.51 to 2.97, p = 0.167) or using social media for more than 2 h (Coef: 1.29, 95% CI: −2.98 to 0.40, p = 0.133) compared to not dedicating time to them did not show a significant association with daily physical activity time. Watching television for more than 2 h was associated with a decrease of 2.60 min (95% CI: −4.41 to −0.78, p = 0.005). Thus, no or only irrelevant associations were found between time spent in sedentary activities and physical activity time. Conclusions: Despite the drawbacks of spending time engaging in sedentary behaviors, they seem to be compatible with physical activity levels. Therefore, it is important to continue research on physical activity adherence strategies to promote overall health and well-being.

Introducción: el aprendizaje cooperativo (AC) es una metodología activa que pretende desarrollar la competencia de trabajo en equipo y favorecer la implicación del alumnado en su aprendizaje. Objetivo: conocer la percepción del alumnado de implementar estrategias metodológicas que favorezcan el AC en la educación superior. Metodología: se llevó a cabo un Proyecto de Innovación Educativa con alumnos de asignaturas de Educación Física de los grados de Educación Primaria y Educación Infantil de la Universidad Rey Juan Carlos. El diseño de la investigación fue cualitativo, realizándose entrevistas semiestructuradas y grupos de discusión cuyas transcripciones fueron analizadas mediante el software MAXQDA. Resultados y discusión: entre las dificultades percibidas en los equipos de trabajo destacan los problemas con la gestión de los tiempos, con la toma de decisiones consensuadas y el diferente nivel de implicación entre sus integrantes. Entre los facilitadores percibidos destacan la posibilidad de aprendizaje entre iguales y la posibilidad de especialización. Conclusiones: a pesar de las dificultades percibidas, trabajar cooperativamente parece favorecer el desarrollo de competencias sociales en los futuros docentes.

Background: Regular physical activity (PA) is a cornerstone of public health; however, participation rates remain below recommended levels worldwide. Understanding PA preferences across demographic groups can support the development of more engaging and sustainable interventions. Methods: This systematic review followed PRISMA 2020 guidelines and was prospectively registered in PROSPERO (CRD420250650308). Systematic searches were conducted in PubMed, Scopus, PsycINFO, and Web of Science (WoS) from inception to September 2025. Studies were included if they assessed PA preferences using validated instruments in general populations and excluded if they were qualitative, clinical, or lacked explicit preference assessment. Two reviewers independently extracted data on demographics, preference patterns, instruments, and study quality using a standardized template. Methodological quality was evaluated with the AXIS tool. Given heterogeneity across studies, subgroup analyses were conducted by age, gender, and socioeconomic status. Results: Twenty-two studies met inclusion criteria. Younger individuals preferred high-intensity, competitive, and social activities, whereas older adults favored low-impact, health-oriented, and independent forms of exercise. Males preferred competitive and strength-based activities, while females favored endurance and group-based options. Socioeconomic factors influenced choices, with lower-income groups more often engaging in community-based and supervised activities. Validated instruments, including the Activity Preference Assessment (APA), Decisional Preference in Exercising Test (DPEX), and Questionnaire on Physical Activity Preferences (QPAP), showed strong reliability and validity. Conclusion: Integrating preference assessment into public health strategies can enhance participation and long-term adherence to active lifestyles. Tailoring interventions to demographic-specific preferences may improve the effectiveness and equity of physical activity promotion. Systematic review registration: https://www.crd.york.ac.uk/PROSPERO/view/CRD420250650308 , Identifier: CRD420250650308.

Background: Nowadays, not only is a high, long life expectancy desired, but also longevity with quality. Quality of life in adulthood is a multidimensional construct related to the perception of one’s own health, psychological and socio-emotional factors, functionality for daily activities, and body composition. Objective: This study evaluates the effects of physical activity level (PAL), strength, balance, and body composition on perceived health in healthy adults. Methods: An observational, cross-sectional study with consecutive, non-probabilistic inclusion of cases was conducted. Body fat percentage (BFP) was measured by DXA. Physical activity level was assessed using accelerometry. The strength index (S_Index) was estimated using dynamometry. Postural control was assessed through posturography. The composite equilibrium score from the Sensory Organization Test (SOT_CES) was conducted to measure postural stability under various sensory conditions using dynamic posturography. Perceived health was calculated using the SF36 questionnaire, which detects health states, both positive and negative. A linear regression model was generated between each domain of SF36 with SOT_CES, BFP, PAL, and S_Index. Results: A total of 64 males with a mean age of 55 ± 5 years and a mean body mass index of 27 ± 4 kg/m² were recruited. Results showed a negative correlation between physical function (ß = −0.7; t = −3.163; p = 0.003; R² = 23.7%) and general health (ß = −0.227; t = −3.425; p = 0.001; R² = 17.4%) with BFP. Also, it showed a negative correlation between physical function (ß = 0.047; t = −2.643; p = 0.011; R² = 17.5%) and general health (ß = 0.016; t = −3.044; p = 0.004; R² = 14.6%) with S_Index. On the other hand, no relation was observed between SF36 and SOT_CES. Finally, only the emotional role showed a positive correlation (ß = −0.02; t = −2.629; p = 0.011; R² = 23.1%) with PAL. Conclusion: A lower BFP and higher S_Index are associated with increased physical function and general health. Also, the higher the PAL, the greater the emotional health. On the other hand, no relation was observed between SF36 and the balance detected from SOT_CES.