Nombre: ALANA KOCK FERREGUETTI COSTA
Fecha de publicación: 29/07/2024
Junta de examinadores:
Nombre |
Papel |
|---|---|
| LUCIANA CARLETTI | Presidente |
| RICARDO AUGUSTO BARBIERI | Examinador Externo |
| WELLINGTON LUNZ | Examinador Externo |
Sumario: Introduction: The Cardiopulmonary Exercise Test with Elastic Resistance (CPxEL) proposes an incremental test in which a back-and-forth sprint with an elastic tube attached to the body at a mat demarcated by standardized distances at a determined frequency. This low-cost alternative requires a small physical space for a sprinting/walking training program with elastic resistance. CPxEL showed good reproducibility when applied to healthy young people. Goal: To evaluate the reproducibility of CPxEL in older and/or elderly people. Methods: It assessed 36 people (30 to 65 years old, 7 men), and each participant performed two tests; the first one (CPxEL) was applied with progressions of 30 cm every minute, maintaining the rhythm determined by a metronome (132 bpm) until exhaustion be reached. In the second test (called by retest), the protocol was repeated, and the verification phase was added, which is related to increasing the metronome rhythm and remaining at the last stage until exhaustion. Statistical treatment has included normality analysis (Shapiro-Wilk), paired t-test, Wilcoxon test, typical error (TE), effect size (ES), coefficient of variation (CV%), intraclass correlation coefficient (ICC), standard error of measurement (SEM) and minimum detectable change (MDC). Results: No significant differences were found in the test vs. retest comparison for V O2, HR, ventilation, cadence, test time, and lactate variables. The intensities of ventilatory thresholds and maximum effort (p between 0.14 and 0.82), with an effect size ranging from negligible to small, except for lactate (ES = 0.34 – moderate). On the other hand, the RER showed a statistical difference in maximum effort (0.97 ± 0.05 vs. 1.00 ± 0.06; ES = 0.53 – large). The ICC for V O2 and HR was from very-high to high at all intensities, and the CV (%) was from 1.85 to 5.88. Conclusion: The results show high reproducibility for the CPxEL in older adults and the elderly as well, making evaluating effects on maximal and submaximal cardiorespiratory fitness possible.
Keywords: Cardiopulmonary Exercise Test; Oxygen Consumption; Physical Fitness; Anaerobic Threshold.
