Although evidence for a threshold intensity was not strong, this analysis of training studies supports the use of 45% VO(2R) as a minimal effective training intensity for higher fit subjects and 30% VO(2R) for lower fit subjects.
No takes yet. Share an insight, caveat, or question.
Swain et al. (2002) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: