The Study
Can back exosuits simultaneously increase lifting endurance and reduce musculoskeletal disorder risk?
This study watched 8 soldiers lift heavy boxes with and without a special back brace and saw that most lifted more times when wearing it and felt less strain. But it didn't test if the brace actually prevents injuries in real life or if it would work for other people.
Analysis score
Maximum 30 for a case report.
Where the score came from
A special elastic back suit helped soldiers lift heavier boxes more times without getting as tired — and their backs took less damage too.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 530 / 100
Quality score
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1This means the suit lets workers do more work safely — but only if they don’t make the loads heavier.
- 288% of soldiers lifted 28–75% more times with the suit.
- 3Their back damage dropped by 27–93%, even though they lifted more.
- 4But if they lifted just 6% heavier, the suit’s benefit disappeared.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Wearable Technologies
Year
2024
Authors
K. Rodzak, P. R. Slaughter, D. Wolf, C. Ice, S. Fine, K. Zelik
Related Content
Claims (6)
Healthy young adult males who wear a passive elastic back exosuit while performing 10 heavy lifts per minute (45–55 kg) experience a 28–75% increase in lifting endurance, but the device does not eliminate the reduction in cumulative low back damage.
A passive elastic back exosuit that delivers 15–42 Nm of lumbar support reduces low back damage by 27–93% during heavy lifting, even when the number of lifts increases by up to 75%.
Wearing a passive elastic back exosuit reduces cumulative low back damage during lifting. Doing more repetitions with the exosuit does not remove this protection, but increasing the weight by 6% removes all protection.
Wearing a passive elastic back exosuit increases the number of lifting repetitions a person can perform, and performance drops when the device is removed, indicating the device directly affects lifting endurance.
Back-assist exosuits allow human workers to lift for longer periods and experience fewer injuries.
A back exosuit that provides 15–42 Nm of support during heavy lifting reduces the maximum force on the lower back and is linked to lower estimated long-term back damage in healthy young adult males.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.