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Observations report physiological responses during a 750 m swim, suggesting caution in interpreting exercise intensity based on estimation methods.
The protocol used to determine CV significantly influences estimated values. Importantly, all findings related to physiological and perceptual responses during the 750 m swim are specific to the CV determined by the three-parameter protocol and should not be generalized to other CV determination methods. Under this protocol, CV may be associated with an exercise intensity approaching the severe domain; however, this interpretation should be made with caution.
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Souza et al. (2026) studied this question.
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