After lifting weights, your heart rate comes back down to normal at about the same speed whether you rested 1 minute or 2 minutes between sets, or whether you trained at real altitude or with a mask.
Scientific Claim
Heart rate during the 30-minute recovery period after resistance training is not meaningfully different between 60-second and 120-second inter-set rest intervals or between hypobaric and normobaric hypoxia conditions in active men, indicating that post-exercise cardiovascular recovery is not significantly altered by these variables.
Original Statement
“There were no differences in the perception of the effort between both modalities of hypoxia. ... HR30 responses showed no significant differences between conditions (ES < 0.7, p > 0.19).”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
The RCT design with continuous HR monitoring and statistical analysis supports definitive conclusions about the absence of an effect on post-exercise recovery heart rate.
Evidence from Studies
Supporting (0)
Contradicting (1)
The study found that resting less between sets or breathing thinner air (like at high altitude) makes your heart work harder and take longer to calm down after exercise — so the claim that it doesn’t matter is wrong.