{"ok":true,"nota":{"id":"5eaba1bc6232cfc2","slug":"en-ninos-de-hainan-china-saltar-la-cuerda-y-correr-se-asocian-con-meno-5eaba1","titulo":"En niños de Hainan, China, saltar la cuerda y correr se asocian con menos miopía","resumen":"Midieron la condición física y la refracción de casi 17.000 estudiantes de entre 6 y 18 años en 35 escuelas de la provincia china de Hainan. Analizaron si un mejor rendimiento en saltar la cuerda y en resistencia se relaciona con tener miopía.","fuente":"medrxiv","fuenteNombre":"medRxiv · preprints","color":"#1f7a4d","autor":"Li, A., Xin, L., Zhou, J.","url":"https://www.medrxiv.org/content/10.64898/2026.10.20.26365985v1?rss=1","imagen":"/hoy/portada/5eaba1bc6232cfc2","tema":"salud","subtemas":["miopía infantil","actividad física","salud visual","condición física","escolares"],"entidades":["Hainan","China"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-22T00:00:00.000Z","indexTs":"2026-10-23T06:48:38.804Z","hash":"e867058c289d1ecd26ad00fcc63f99c2be85388e5c4506ff7563839430bd2635","tsa":{"time":"Oct 23 06:49:13 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"La miopía en chicos aumentó fuerte en las últimas décadas y para muchos empieza en la infancia y no se corrige sola. Si el ejercicio se vincula con menos miopía, la educación física deja de ser solo una cuestión de salud general y pasa a tener un argumento visual concreto para padres y escuelas. Como el estudio es transversal, muestra asociación y no prueba que el ejercicio sea la causa.","quienFirma":"Provincia de Hainan, China (escuelas y autoridades sanitarias locales)","confianza":"preprint","consulta":null},"sello":{"hash":"e867058c289d1ecd26ad00fcc63f99c2be85388e5c4506ff7563839430bd2635","sello":"b86528f5cc26c9334691be89ef43ed3a482c0bd93f88d3cd473d769bdcefd9ed","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6576904,"aleatorio":"de1eb2202a8740188a6d548b82b02c9bf5670ff757e153d72f50c165d7d681b3","tiempo":"2026-10-23T06:49:00.000Z"},"nist":{"cadena":2,"pulso":1995651,"salida":"AA82134D649B7B25F10D77FD67053808011261EF94B49E048C931DF7D357E824C95C66604E50CE6E37F934A39EE493177DEA66983586EA3E4667145C3C8919D6","tiempo":"2026-10-23T06:48:00.000Z"},"noAntes":"2026-10-23T06:49:00.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 23 06:49:13 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Associations of rope-skipping and endurance running performance with myopia and spherical equivalent refraction in children and adolescents: a cross-sectional study","descripcion":"Objective To examine nonlinear associations and reference thresholds between physical fitness performance and refractive outcomes in children and adolescents. Methods We surveyed 17235 students aged 6-18 years from 35 schools in seven counties or cities in Hainan Province in December 2023. Cycloplegic autorefraction was used, and spherical equivalent refraction averaged between the two eyes (SEmean) of [≤]-0.50 diopters was classified as myopia. Models adjusted for age, sex, ethnicity, urban-rural residence, near-work duration, outdoor activity time, parental myopia history, BMI, and a centered BMI-squared term, with school-clustered robust standard errors. Waist-to-height ratio was exami","pubDate":"2026-10-22","url":"https://www.medrxiv.org/content/10.64898/2026.10.20.26365985v1?rss=1"},"indexado":"2026-10-23T06:48:38.804Z"}}