Universidad del Desarrollo

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Frequency of Injury and Illness in the Final 4 Weeks before a Trail Running Competition
(2021)
Rubén Gajardo-Burgos
;
Manuel Monrroy-Uarac
;
René Mauricio Barría-Pailaquilén
;
Yessenia Norambuena-Noches
;
Dina Christa Janse van Rensburg
<jats:p>We aimed to (i) determine self-reported injury and illness frequency in trail runners 4 weeks preceding competition; (ii) compare athletes with and without injury/illness by sex, age, body mass index (BMI) and competition distance; (iii) describe mechanism of injury, anatomical region (injury)/organ system (illness) involved, consequences of injury on preparation and self-perception of injury severity; (iv) compare anatomical region (injury) and organ system (illness) by sex. A total of 654 trail runners (age 36.2, IQR 30.6–43.0; 36.9% females) participated in this retrospective cross-sectional study by completing a self-reported questionnaire. Injury and illness frequency rates were 31.3% (n = 205, CI:27.7–35.0%) and 22.3% (n = 146, CI:19.1–25.7%), respectively. No significant difference was found between injured vs. non-injured or ill vs. non-ill study participants by sex, age, BMI and competition distance. Regarding injuries, gradual onset (41.6%) and knee (33.2%) were the most indicated mechanism and anatomical region of injury. At least 85.4% of trail runners changed their training following injury and 79% indicated that their injury would affect their competition performance. Regarding illness, the respiratory tract was the most frequent organ system involved (82.9%). Male and female participants reported similar proportions of anatomical regions (injury) and organ systems (illness) affected. These results could help to generate education strategies and appropriate medical support before and during these competitions.</jats:p>
4Scopus© Citations 13
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Seroprevalence of Natural and Acquired Immunity against the SARS-CoV-2 Virus in a Population Cohort from Two Chilean Cities, 2020–2022
(2023)
Loreto Núñez-Franz
;
Muriel Ramírez-Santana
;
RUBILAR RAMIREZ, PAOLA
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Macarena Said
;
VIAL COX, MARIA CECILIA
<jats:p>Background: Chile has achieved the highest coverage for vaccines against the SARS-CoV-2 virus worldwide. Objective: To assess the progression of immunity (natural and acquired by vaccine) in a cohort from two Chilean cities. Methods: Individuals (n = 386) who participated in three phases of population-based serial prevalence studies were included (2020–2021 and 2022). Presence of SARS-CoV-2 antibodies was measured in serum. Data including time of vaccination and type of vaccine received were analysed with descriptive statistics. Results: Seroprevalence was 3.6% in the first round and increased to 96.9% in the second and 98.7% in the third. In the third round, 75% of individuals who had received the basal full scheme were seropositive at 180 days or more since their last dose; 98% of individuals who received one booster dose were seropositive at 180 days or more, and 100% participants who received two boosters were seropositive, regardless of time since their last dose. Participants receiving mRNA vaccines had higher seroprevalence rates over time. Conclusions: The high vaccination coverage in Chile enabled the population to maintain high levels of antibodies. Vaccination boosters are essential to maintain immunity over time, which also depends on the type of vaccine administered.</jats:p>
1Scopus© Citations 12
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Prácticas y preferencias alimentarias y de actividad física en niños y niñas: Una aproximación desde los Parlamentos Escolares en establecimientos educacionales
(2023)
Tito Pizarro
;
Macarena Jara
;
Daisy Margarit
;
José Luis Palacios
;
PINHEIRO FERNANDES, ANNA CHRISTINA
<jats:p>En Chile la malnutrición por exceso continúa en aumento, afectando especialmente a la población infantil. Solucionar esta problemática de salud pública requiere desarrollar estrategias de promoción y prevención que consideren las propuestas de las comunidades, especialmente la de los propios niños y niñas. Objetivo: Conocer las opiniones y sugerencias de niños y niñas de tercero y cuarto básico de escuelas de la zona sur de Santiago de Chile, respecto de sus prácticas alimentarias y de actividad física, en el marco del proyecto FONDEF IT 1810016. Sujetos y Método: Se desarrollaron siete parlamentos escolares en siete escuelas mediante una metodología cualitativa participativa, recogiendo las opiniones de 176 niños y niñas acerca de sus hábitos y preferencias tanto de alimentos como de actividad física. Resultados: Los alimentos más consumidos y preferidos son aquellos fáciles de preparar y de alta disponibilidad, como pan, tallarines y leche. Los alimentos que requieren preparación, como pescado, legumbres, frutas, verduras y preparaciones caseras, son menos consumidos y tienen menos preferencia. En las actividades físicas recreativas destacan los videojuegos y el fútbol. Los estudiantes proponen aumentar las horas de educación física, los recreos y mejorar la disponibilidad y acceso a alimentos saludables en los entornos escolares como estrategia de solución al problema de la malnutrición por exceso. Conclusiones: Los Parlamentos Escolares como estrategia participativa aportan en la generación conjunta de conocimiento. La necesidad de incluir a las comunidades como partes interesadas en las iniciativas de salud, reconoce a través de su participación, a los niños y las niñas como actores sujetos de derechos.</jats:p>
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