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A widely cited recommendation is that to elicit valid maximal oxygen uptake (V̇O_2max) values, incremental exercise tests should last between 8 and 12 minutes. However, this recommendation originated from the findings of a single experimental study conducted by Buchfuhrer et al. in 1983. Although this study is an important contribution to scientific knowledge, it should not be viewed as sufficient evidence to support the recommendation for eliciting valid V̇O_2max values.

At least eight studies have reported that durations as short as 5 minutes and as long as 26 minutes elicit V̇O_2max values similar to those derived from tests of 8–12 minutes’ duration. Two studies reported that the shorter test protocols elicited significantly higher V̇O_2max V̇O_2max values determined during tests of 8–12 minutes than during more prolonged tests, the prolonged tests were associated with maximal treadmill …