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Authors

Introduction:


The one-minute sit-to-stand test (1min-STST) is a practical assessment tool for measuring functional ability. Reference values are currently unavailable for populations residing at high altitudes.


Aims:


To establish reference values for the 1min-STST in people living at high altitudes by sex and age range. Additionally, we correlate the variables analyzed with the number of repetitions obtained in the tests.


Methods:


Multicenter cross-sectional research was conducted, collecting data from two cities at high altitudes. Healthy adults between 18 and 80 years old were recruited. Anthropometric measurements, physical activity levels, smoking habits, and the number of repetitions during the 1min-STST were recorded. A multiple linear regression was performed to determine the predictive equations by sex. The stepwise method was used to generate the predictive model.


Results:


As many as 400 healthy subjects (58% women) were included. Participants had a median (P25-P75) height of 1.62 (1.56-1.68) cm, a weight of 63.0 (57.8-70.1) kg, and a BMI of 24.2 (22.5-26.0) kg/m2. The predictive equations were: 1minSTSTMen=19.833 - (age* 0.168) + (height * 0.204) - (weight * 0.122); 1minSTSTWomen= 27.845 - (age * 0.198) + (height * 0.145) - (weight* 0.094).


Conclusion:


The reference values for 1min-STST were determined for the healthy population aged 18-80 years living at high altitudes.

Mauricio Morales-Satan, Hospital General Docente de Calderon, Quito, Ecuador; Universidad Tecnológica Equinoccial, Quito, Ecuador; Pontificia Universidad Católica del Ecuador, Quito, Ecuador

Hospital General Docente de Calderon; Universidad Tecnológica Equinoccial; Pontificia Universidad Católica del Ecuador, Quito, Ecuador

Sofía Dávila-Oña, Pontificia Universidad Católica del Ecuador, Manabi, Ecuador

Facultad  de Enfermería, Pontificia Universidad Católica Del Ecuador, Manabi, Ecuador.

Rodrigo Torres-Castro, Departmento de Kinesiología, Facultad de Medicina, Universidad de Chile, Santiago, Chile

Departmento de Kinesiología, Facultad de Medicina, Universidad de Chile, Santiago, Chile.

Cristhel Hidrovo-Moreno, Pontificia Universidad Católica del Ecuador, Quito, Ecuador

Facultad  de Enfermería, Pontificia Universidad Católica Del Ecuador, Quito, Ecuador.

Matías Otto-Yáñez, Universidad Autónoma de Chile, Facultad de Ciencias de la Salud, Grupo de Investigación en Salud, Funcionalidad y Actividad Física (GISFAF), Santiago, Chile

Grupo de Investigación en Salud, Funcionalidad y Actividad Física (GISFAF), Kinesiología, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Santiago, Chile.

Wilmer Esparza, Universidad Tecnológica Indoamerica, Carrera de Medicina, Facultad de Ciencias de la Salud y Bienestar Humano, Ambato, Ecuador

Facultad de Ciencias de la Salud y Bienestar Humano, Carrera de Medicina, Universidad Tecnológica Indoamérica, Ambato, Ecuador.

Camila Madera, Pontificia Universidad Católica del Ecuador, Manabí, Ecuador.

Pontificia Universidad Católica del Ecuador, Manabí, Ecuador.

Carlos Moreta-Núñez, Universidad Central del Ecuador, Carrera de Fisioterapia,  Quito, Ecuador

Universidad Central del Ecuador, Carrera de Fisioterapia,  Quito, Ecuador

Pamela Serón, Universidad de La Frontera, Facultad de Medicina, Departamento de Ciencias de la Rehabilitación,   Temuco, Chile;  Universidad de La Frontera, Centro de Excelencia CIGES, Temuco, Chile

Universidad de La Frontera, Facultad de Medicina, Departamento de Ciencias de la Rehabilitación,   Temuco, Chile

 Universidad de La Frontera, Centro de Excelencia CIGES, Temuco, Chile

Lilian Solis-Navarro, Departmento de Kinesiología, Facultad de Medicina, University of Chile, Santiago, Chile

Departmento de Kinesiología, Facultad de Medicina, University of Chile, Santiago, Chile.

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Received 2025-02-17
Accepted 2025-05-07
Published 2025-03-30