After doing weight lifting or short bursts of intense cardio, your body keeps burning more calories for hours afterward than it does after a long, slow jog—even if you burned the same total calories during each workout.
Scientific Claim
Resistance training and high-intensity intermittent aerobic exercise are associated with higher resting metabolic rate 12 and 21 hours after exercise compared to steady-state aerobic exercise, when all modes are matched for total caloric expenditure and duration in young men.
Original Statement
“At 12 hr postexercise, resting metabolic rate (RMR) was higher after the RT trial (4.7 ± 0.67 mL/kg/min) and IT trial (4.6 ± 0.62 mL/kg/min) compared with their respective baseline measurements (p < .008) and the SS trial (4.3 ± 0.58 mL/kg/min; p < .008). At 21 hr postexercise, RMR was higher after the RT trial (3.7 ± 0.51 mL/kg/min) and IT trial (3.5 ± 0.39 mL/kg/min) compared with the SS trial (3.2 ± 0.38 mL/kg/min; p < .008).”
Evidence Quality Assessment
Claim Status
overstated
Study Design Support
Design cannot support claim
Appropriate Language Strength
association
Can only show association/correlation
Assessment Explanation
The abstract describes an observational comparison without randomization or blinding, so causation cannot be inferred. The conclusion uses 'may be more effective,' implying practical superiority, but the data only show association under controlled conditions. Verb strength must be conservative.
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.
Systematic Review & Meta-AnalysisLevel 1aWhether resistance training and high-intensity intermittent aerobic exercise consistently produce greater post-exercise oxygen consumption than steady-state aerobic exercise across diverse populations when caloric expenditure is matched.
Whether resistance training and high-intensity intermittent aerobic exercise consistently produce greater post-exercise oxygen consumption than steady-state aerobic exercise across diverse populations when caloric expenditure is matched.
What This Would Prove
Whether resistance training and high-intensity intermittent aerobic exercise consistently produce greater post-exercise oxygen consumption than steady-state aerobic exercise across diverse populations when caloric expenditure is matched.
Ideal Study Design
A meta-analysis of 20+ randomized controlled trials involving healthy adults aged 18–40, comparing isocaloric bouts of resistance training, high-intensity intermittent aerobic exercise, and steady-state aerobic exercise, with EPOC measured via indirect calorimetry at 12h and 24h post-exercise as the primary outcome.
Limitation: Cannot establish individual-level causality or account for all confounders across heterogeneous studies.
Randomized Controlled TrialLevel 1bWhether resistance training and high-intensity intermittent aerobic exercise causally increase post-exercise metabolic rate compared to steady-state aerobic exercise in matched conditions.
Whether resistance training and high-intensity intermittent aerobic exercise causally increase post-exercise metabolic rate compared to steady-state aerobic exercise in matched conditions.
What This Would Prove
Whether resistance training and high-intensity intermittent aerobic exercise causally increase post-exercise metabolic rate compared to steady-state aerobic exercise in matched conditions.
Ideal Study Design
A double-blind, crossover RCT with 30+ healthy young men (20–25 yrs), each completing all three isocaloric exercise conditions (RT, IT, SS) in random order with 7-day washouts, measuring EPOC via whole-room calorimetry at 12h and 21h post-exercise, controlling for diet, sleep, and activity.
Limitation: Limited generalizability to women, older adults, or highly trained individuals.
Prospective Cohort StudyLevel 2bWhether habitual use of resistance or high-intensity intermittent training over months leads to greater cumulative daily energy expenditure compared to steady-state aerobic training.
Whether habitual use of resistance or high-intensity intermittent training over months leads to greater cumulative daily energy expenditure compared to steady-state aerobic training.
What This Would Prove
Whether habitual use of resistance or high-intensity intermittent training over months leads to greater cumulative daily energy expenditure compared to steady-state aerobic training.
Ideal Study Design
A 6-month prospective cohort study of 100 sedentary adults randomized to one of three exercise groups (RT, IT, SS), matched for weekly caloric expenditure, with daily energy expenditure measured via doubly labeled water and RMR assessed weekly.
Limitation: Cannot isolate acute EPOC effects from long-term metabolic adaptations.
Cross-Sectional StudyLevel 3Whether individuals who regularly perform resistance or high-intensity intermittent training have higher baseline RMR than those who perform steady-state aerobic training.
Whether individuals who regularly perform resistance or high-intensity intermittent training have higher baseline RMR than those who perform steady-state aerobic training.
What This Would Prove
Whether individuals who regularly perform resistance or high-intensity intermittent training have higher baseline RMR than those who perform steady-state aerobic training.
Ideal Study Design
A cross-sectional comparison of 150 young adult men (20–25 yrs) with 6+ months of consistent training in one of three modes (RT, IT, SS), matched for total weekly energy expenditure, measuring fasting RMR via indirect calorimetry.
Limitation: Cannot determine if exercise mode caused differences in RMR or if individuals self-selected based on metabolic traits.
Evidence from Studies
Supporting (1)
EPOC Comparison Between Isocaloric Bouts of Steady-State Aerobic, Intermittent Aerobic, and Resistance Training
The study found that lifting weights and doing short bursts of intense cardio burned more calories even hours after the workout than steady jogging or cycling, even when all workouts used the same amount of energy. So yes, the claim is right.