Rowing warm-up plus respiratory warm-up (RWUplus).
RWUplus was a combined protocol consisting of a RWU and a specific respiratory warm-up. The specific respiratory warm-up consisted of two sets of 30 breaths using a POWERbreathe® inspiratory muscle trainer (IMT Technologies Ltd.) at 40% of the MIP measured before the start of the protocol. Between the two sets, there was a short rest interval while an inter-