Changes in Adiposity, Muscular Strength, and Functional Capacity Following a National Holiday Break in Chilean Students with Intellectual Disabilities Attending Special-Education Schools.
8 affiliations
- 1Escuela de Ciencias de la Actividad Física, el Deporte y la Salud, Universidad de Santiago de Chile (USACH), Santiago 9170022, Chile.
- 2Department of Physical Education, Faculty of Education, Federal University of Bahia, Salvador 40170-110, Bahia, Brazil.
- 3Vicerrectoría de Investigación e Innovación, Universidad Arturo Prat, Iquique 1110939, Chile.
- 4Escuela de Ciencias de la Actividad Física, Facultad de Ciencias de la Rehabilitación y Calidad de Vida, Universidad San Sebastián, Santiago 7510141, Chile.
- 5Escuela de Ciencias de la Actividad Física, Universidad de Las Américas, Santiago 8320000, Chile.
- 6Facultad de Educación y Humanidades, Escuela de Ciencias del Deporte, Universidad Andrés Bello, Las Condes, Santiago 7550000, Chile.
- 7Grupo de Investigación en Educación Física, Salud y Calidad de Vida (EFISAL), Facultad de Educación, Universidad Autónoma de Chile, Temuco 4780000, Chile.
- 8Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás, Santiago 9170022, Chile.
Abstract
Background
National holiday breaks may involve less structured daily routines and cultural practices that favor excess energy intake, yet short-term changes in youth with intellectual disability (ID) following these breaks remain underexplored. This study examined changes in adiposity, muscular strength, and functional capacity following Chile's national holiday break among students with ID.Methods
In this observational, single-group pre-post study, 49 students with mild-to-moderate ID (35 males, 14 females; 15.9 ± 4.0 years) were assessed before and after the holiday break. Anthropometric and adiposity indicators (body weight, waist [WC] and neck [NC] circumference, BMI, waist-to-height ratio [WHtR], submandibular skinfold [SS]), handgrip strength (absolute, relative) and functional capacity (countermovement jump, five-repetition sit-to-stand, timed up-and-go) were evaluated. Sex-differential changes were assessed using the time-by-sex interaction in mixed-model ANOVA, with Holm correction applied across outcomes within each domain. Within-sex pre-post comparisons were also adjusted using the Holm procedure.Results
No time-by-sex interaction remained significant after correction (all adjusted p ≥ 0.137). Significant time effects remained for SS (adjusted p = 0.012) and handgrip strength (adjusted p < 0.001), but not for NC. In secondary analyses, only the increase in SS (+15.6%; adjusted p = 0.025) and the increases in absolute (+8.0%) and relative (+7.6%) handgrip strength in males (both adjusted p = 0.002) remained significant. Changes in females were not statistically significant and were therefore interpreted descriptively (all adjusted p ≥ 0.31), and no significant changes in functional capacity were detected.Conclusions
The national holiday break was associated with a small increase in SS and an increase in handgrip strength, with the latter potentially reflecting a familiarization effect rather than a true physiological gain in strength. After correction for multiple comparisons, the findings do not support sex-specific conclusions; the observed pattern among females should therefore be considered hypothesis-generating and requires confirmation in larger, controlled studies.
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BibTeX
@article{fariasvalenzuela2026changes,
title = {{Changes in Adiposity, Muscular Strength, and Functional Capacity Following a National Holiday Break in Chilean Students with Intellectual Disabilities Attending Special-Education Schools.}},
author = {Claudio Farías-Valenzuela and Rafael Kons and Paloma Ferrero-Hernández and Emilio Jofré-Saldía and Cristian Cofré-Bolados and Joaquín Hernández-Soto and Enzo Pavez-Castro and Benjamín Pavez-Pavez and Carlos Poblete-Aro and Josivaldo de Souza-Lima and Andrés Godoy-Cumillaf and Matías Henríquez},
journal = {Healthcare (Basel, Switzerland)},
year = {2026},
month = oct,
doi = {10.3390/healthcare14193325},
url = {https://europepmc.org/article/MED/42881765},
note = {CC BY},
}
RIS
TY - JOUR
TI - Changes in Adiposity, Muscular Strength, and Functional Capacity Following a National Holiday Break in Chilean Students with Intellectual Disabilities Attending Special-Education Schools.
AU - Claudio Farías-Valenzuela
AU - Rafael Kons
AU - Paloma Ferrero-Hernández
AU - Emilio Jofré-Saldía
AU - Cristian Cofré-Bolados
AU - Joaquín Hernández-Soto
AU - Enzo Pavez-Castro
AU - Benjamín Pavez-Pavez
AU - Carlos Poblete-Aro
AU - Josivaldo de Souza-Lima
AU - Andrés Godoy-Cumillaf
AU - Matías Henríquez
PY - 2026
DA - 2026/10/06
JO - Healthcare (Basel, Switzerland)
DO - 10.3390/healthcare14193325
UR - https://europepmc.org/article/MED/42881765
AB - Background National holiday breaks may involve less structured daily routines and cultural practices that favor excess energy intake, yet short-term changes in youth with intellectual disability (ID) following these breaks remain underexplored. This study examined changes in adiposity, muscular strength, and functional capacity following Chile's national holiday break among students with ID.Methods In this observational, single-group pre-post study, 49 students with mild-to-moderate ID (35 males, 14 females; 15.9 ± 4.0 years) were assessed before and after the holiday break. Anthropometric and adiposity indicators (body weight, waist [WC] and neck [NC] circumference, BMI, waist-to-height ratio [WHtR], submandibular skinfold [SS]), handgrip strength (absolute, relative) and functional capacity (countermovement jump, five-repetition sit-to-stand, timed up-and-go) were evaluated. Sex-differential changes were assessed using the time-by-sex interaction in mixed-model ANOVA, with Holm correction applied across outcomes within each domain. Within-sex pre-post comparisons were also adjusted using the Holm procedure.Results No time-by-sex interaction remained significant after correction (all adjusted p ≥ 0.137). Significant time effects remained for SS (adjusted p = 0.012) and handgrip strength (adjusted p < 0.001), but not for NC. In secondary analyses, only the increase in SS (+15.6%; adjusted p = 0.025) and the increases in absolute (+8.0%) and relative (+7.6%) handgrip strength in males (both adjusted p = 0.002) remained significant. Changes in females were not statistically significant and were therefore interpreted descriptively (all adjusted p ≥ 0.31), and no significant changes in functional capacity were detected.Conclusions The national holiday break was associated with a small increase in SS and an increase in handgrip strength, with the latter potentially reflecting a familiarization effect rather than a true physiological gain in strength. After correction for multiple comparisons, the findings do not support sex-specific conclusions; the observed pattern among females should therefore be considered hypothesis-generating and requires confirmation in larger, controlled studies.
SN - 2227-9032
ER -