RT journal article
T1 Criterion-related validity and reliability of the 2-km walk test and the 20-m shuttle run test in adults: The role of sex, age and physical activity level
A1 Marín Jiménez, Nuria
A1 Sánchez Parente, Sandra
A1 Expósito Carrillo, Pablo
A1 Jiménez Iglesias, José
A1 Álvarez Gallardo, Inmaculada Concepción
A1 Cuenca García, María Magdalena
A1 Castro Piñero, José
A2 Didáctica de la Educación FísicaPlástica y Musical
K1 Fields tests
K1 Cardiorespiratory fitness test
K1 Validity
K1 Reproducibility
K1 Adults
AB Objectives: To analyze the criterion-related validity and the reliability of fitness field tests for evaluating cardiorespiratory fitness in adults, by sex, age, and physical activity level.Design: Cross-sectional.Methods: During 3 weeks, sociodemographic, anthropometric measurements, a treadmill maximal test, the 2-kmwalk test, and the 20-m SRT were performed in 410 adults aged 18–64 years. Measured and estimated VO2max(by Oja's and Leger's equations) were analyzed.Results: Measured VO2max was associated with estimated VO2max by the 2-km walk test and 20-m SRT (r = 0.784and r = 0.875, respectively; both p < 0.01). Bland–Altman analysis showed a mean difference of −0.30 ml* kg−1* min−1 (p < 0.001, d = −0.141) in the 2-km walk test, and 0.86 ml* kg−1 * min−1 (p = 0.051) in the 20-mSRT. Significant mean differences between test and retest were found in the time to complete the 2-km walk test(−1.48 ± 0.51 s, p = 0.004, d = −0.014) and in the final stage reached in the 20-m SRT (0.04 ± 0.01, p =0.002, d = 0.015). Non-significant differences were found between test and retest in the estimated VO2max byOja's (−0.29 ± 0.20 ml* kg−1 * min−1, p > 0.05) and Leger's eqs. (0.03 ± 0.04 ml* kg−1 * min−1, p > 0.05).Moreover, both test results and estimated VO2max equations showed a high test–retest reliability.Conclusions: Both tests were valid and reliable for evaluating cardiorespiratory fitness in adults aged 18–64 years,regardless of sex, age, and physical activity level.
PB Elsevier
SN 1440-2440
YR 2023
FD 2023-03
LK http://hdl.handle.net/10498/28760
UL http://hdl.handle.net/10498/28760
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026