Reduced Variability of Endurance Time in New Protocols for Exercise Tests in COPD [Corrigendum]

This article refers to:

Reduced Variability of Endurance Time in New Protocols for Exercise Tests in COPD

Tufvesson E, Radner F, Papapostolou G, et al. Int J Chron Obstruct Pulmon Dis. 2020;15:3003–3012.

Page 3004, left column, line 2 from the bottom, the sentence “The study also included a new W_MAX test where the participants started biking with a 3-min warm-up at 40% of their predicted W_MAX, followed by an instant increase to 70% and then a linear increase in workload to achieve the predicted W_MAX within 8 min” should read “The study also included a new W_MAX test where the participants started biking with a 3-min warm-up at 40% of their predicted W_MAX, followed by a linear increase in workload to achieve the predicted W_MAX within 8 min”.

Page 3005, left column, line 4 from the bottom, the sentence “The new maximum test included an initial phase of pedalling for 3 min at 40% (Study A) or 30% (Study B) of the predicted W_MAX, followed by an instant increase to 75% (Study A) or 70% (Study B), followed by a stepwise (Study A) or linear (Study B) increase in workload until exhaustion” should read “The new maximum test included an initial phase of pedalling for 3 min at 40% (Study A) or 30% (Study B) of the predicted W_MAX, followed by a linear increase in workload to achieve the predicted W_MAX within 8 min”.

The authors apologize for these errors.