People feel much more tired after doing weightlifting with only 1 minute of rest between sets than with 2 minutes of rest, no matter if they’re at high altitude or breathing oxygen-poor air.
Scientific Claim
Perceived exertion (RPE-30) is significantly higher after resistance training with 60-second inter-set rest compared to 120-second rest in all environmental conditions, with effect sizes ranging from 1.26 to 1.82, indicating greater subjective fatigue regardless of hypoxia type.
Original Statement
“As expected, ratings of perceived exertion displayed much higher values in 60 s of inter-set rest intervals with respect to 120 s in all conditions (ES: 1.43, 1.33 and 1.26 for N, HH and NH, respectively).”
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 standardized RPE measurement and large, consistent effect sizes across all conditions supports definitive causal language for perceptual outcomes.
Evidence from Studies
Supporting (1)
The study found that lifting weights with only 60 seconds of rest between sets made people feel much more tired than with 120 seconds of rest, no matter if they were at high altitude or not.