Browsing by Author "Cerda-Vega, Enrique"

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    Anthropometric Parameters, Physical Activity, Physical Fitness, and Executive Functions among Primary School Children
    (2022) Contreras-Osorio, Falonn; Guzman-Guzman, Iris Paola; Cerda-Vega, Enrique; Chirosa-Rios, Luis; Ramirez-Campillo, Rodrigo; Campos-Jara, Christian
    Physical activity during childhood and adolescence favors brain development and cognitive functioning, particularly the executive functions. This study aimed to assess potential associations between anthropometric parameters, physical activity, physical fitness, and executive functions among elementary school children returning to school after the COVID-19 lockdown in Chile. School-age male and female participants (n = 90; age, 10-12 years) participated in the study. To determine the association between variables, a multivariable linear regression analysis was performed. Higher fat-related anthropometric indexes were associated with lower working memory, cognitive flexibility, planning, and attention (r = -0.55 to -0.22; p = 0.031 to <0.001). In contrast, higher physical activity levels, better sprint performance, higher lower-body muscular power, and greater upper-body muscular strength were associated with better working memory, cognitive flexibility, inhibition, planning, and/or attention (r = 0.19 to -0.54; p = 0.04 to <0.001). Current results consistently suggest the need for adequate levels of physical activity, physical fitness, and anthropometric parameters among the school-age population to promote healthy and adequate executive functions.
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    Effects of the Type of Sports Practice on the Executive Functions of Schoolchildren
    (2022) Contreras-Osorio, Falonn; Paola Guzman-Guzman, Iris; Cerda-Vega, Enrique; Chirosa-Rios, Luis; Ramirez-Campillo, Rodrigo; Campos-Jara, Christian
    There is a close relationship between the development of complex motor skills and executive functions during childhood. This study aimed to analyze the differences in different dimensions of executive functions in children practicing an open-skill sport (handball) and a closed-skill sport (athletics) and controls who did not participate in sports activities after a 12-week intervention period. School-aged male and female subjects (n = 90; mean +/- standard deviation = 11.45 +/- 0.68 years) participated in a non-randomized controlled study. Data analysis was performed using the STATA V.15 statistical software. The athletics intervention promoted semantic fluency (p = 0.007), whereas handball increased inhibition (p = 0.034). Additionally, physical activity improved in both intervention groups (p = < 0.001), whereas sprint performance improved in the handball group following intervention (p = 0.008), lower body muscular power improved in athletics (p = 0.04), and evidence of improvement in upper body muscular strength was noted in handball (p = 0.037). In turn, an increase in the Physical Activity Questionnaire for older Children score showed an association with the Standard Ten scores of executive functions. In conclusion, compared to controls, both athletics and handball induced meaningful improvements in physical activity and executive functions. However, sport-specific adaptations were noted after athletics (i.e., semantic fluency and lower body muscular power) and handball (i.e., inhibition, sprint, and upper-body muscular strength).