The PAY test: a new approach for assessing functional performance in children and adolescents with asthma

Fernanda C Lanza; Jenifer Santos; Jessyca P Selman; Ariane O Crispim; Karina S Nascimento; Giovanna M Souza; Danila V B Cano; Anne E Holland; Dirceu Solé; Simone Dal Corso

doi:10.1016/j.jped.2023.05.002

The PAY test: a new approach for assessing functional performance in children and adolescents with asthma

J Pediatr (Rio J). 2023 Nov-Dec;99(6):597-603. doi: 10.1016/j.jped.2023.05.002. Epub 2023 May 23.

Affiliations

¹ Universidade Federal de Minas Gerais (UFMG), Departamento de Fisioterapia, Belo Horizonte, MG, Brazil; Universidade Nove de Julho, Programa de Pós-Graduação em Ciências da Reabilitação, São Paulo, SP, Brazil. Electronic address: lanzafe@gmail.com.
² Universidade Nove de Julho, Programa de Pós-Graduação em Ciências da Reabilitação, São Paulo, SP, Brazil.
³ Monash University, Central Clinical School, Department of Allergy, Clinical Immunology and Respiratory Medicine, Melbourne, Victoria, Australia; Alfred Health, Physiotherapy Department, Melbourne, Victoria, Australia.
⁴ Universidade Federal de São Paulo (UNIFESP), Departamento de Pediatria, Disciplina de Alergia, Imunologia Clínica e Reumatologia, São Paulo, SP, Brazil.

Abstract

Objective: To develop, validate, and test the reproducibility of a new test capable of assessing functional performance in children and adolescents (PAY test: Performance Activity in Youth).

Methods: participants without and with asthma were included in the development and validation phases, respectively. The PAY test includes five activities: transition from sitting to standing, walking 10 m, step climbing, shoulder extension and flexion, and star jumps. Participants underwent the Pediatric Glittre test (TGlittre-P test time), modified shuttle test (MST), and cardiopulmonary exercise test (CPET).

Outcomes: PAY test and TGlittre-P test times, oxygen uptake (VO_2peak), and distance walked in the MST.

Results: 8 healthy volunteers, aged 12 (7 - 15) years old were included in the development phase and 34 participants with asthma, aged 11 (7 -14) years old, in the validation phase. The PAY test elicited greater physiological responses (VO_2peak 33.5 ± 6.9 mL/kg) than the TGlittre-P (VO_2peak: 27.4 ± 9.0 mL/kg), but lower than the MST (VO_2peak: 48.9 ± 14.2 mL/kg) and CPET (VO_2peak: 42.0 ± 8.8 mL/kg), p < .05. Moderate correlation between the PAY test time and the TGlittre-P time (r = 0.70, p < .001) and distance walked in the MST (r = -0.72, p < .001). The PAY test time was longer in participants with asthma than in healthy participants (3.1 [3.0 - 3.3] min vs. 2.3 [2.1 - 2.4 min]), p < .001.; and the test was reproducible (ICC 0.78, CI 95% 0.55-0.90, p < .001).

Conclusions: The PAY test is a valid and reproducible tool for assessing functional performance in children and adolescents with asthma.

Keywords: Asthma; Children; Exercise; Functional capacity; Reproducibility; Validation.

MeSH terms

Adolescent
Asthma* / diagnosis
Child
Exercise Test*
Humans
Oxygen Consumption
Reproducibility of Results
Walking