Straps might let you move the bar farther or with more effort during deadlifts, but we don’t know if that actually helps you get stronger or fitter.
Scientific Claim
Lifting straps may increase mechanical work performed during the deadlift, but the functional significance of this increase is unknown.
Original Statement
“LS may increase mechanical work in the deadlift”
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 word 'may' is appropriately cautious, but the claim implies a measurable biomechanical effect without citing data or methodology. As a narrative review, it cannot substantiate this claim with evidence.
More Accurate Statement
“Some anecdotal or preliminary observations suggest lifting straps may increase mechanical work during the deadlift, but no controlled data confirm this effect or its training relevance.”
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.
Randomized Controlled TrialLevel 1bWhether lifting straps increase total mechanical work (force × distance) during the deadlift compared to bare-handed lifting.
Whether lifting straps increase total mechanical work (force × distance) during the deadlift compared to bare-handed lifting.
What This Would Prove
Whether lifting straps increase total mechanical work (force × distance) during the deadlift compared to bare-handed lifting.
Ideal Study Design
A within-subject RCT with 20 trained lifters performing 5 repetitions of 80% 1RM deadlifts with and without straps, using force plates and motion capture to calculate total work output, with counterbalanced order and 72-hour rest between sessions.
Limitation: Measures acute work output only; does not assess whether increased work translates to strength or hypertrophy gains.
Prospective Cohort StudyLevel 2bWhether increased mechanical work with straps correlates with greater long-term strength gains in a real-world training population.
Whether increased mechanical work with straps correlates with greater long-term strength gains in a real-world training population.
What This Would Prove
Whether increased mechanical work with straps correlates with greater long-term strength gains in a real-world training population.
Ideal Study Design
A 12-month cohort study tracking 100 lifters who use straps consistently vs. those who don’t, measuring monthly changes in deadlift 1RM and calculating total mechanical work per session via wearable sensors and training logs.
Limitation: Cannot isolate mechanical work as the causal factor due to confounding variables like training volume and recovery.
Evidence from Studies
Supporting (1)
The study found that lifting straps might make you do more work during deadlifts, but it doesn’t know if that extra work actually helps you get stronger or better — just like the claim says.