Compression Garments for Recovery: Why There Is Almost No Evidence
A fresh meta-analysis in endurance athletes found a shift in favour of compression for muscle soreness, but the confidence interval crosses zero, the risk of bias is high in 10 assessments out of 11, and the effect on performance could not be pooled at all.
Compression socks and tights have become an almost obligatory piece of kit: people put them on for long runs, pull them on right after the finish, sleep in them before the second stage of a multi-day race. The logic sounds convincing — compression supports venous return, reduces muscle vibration, speeds up the clearance of metabolic by-products. The problem is that when someone tried to confirm that logic with measurements specifically in endurance athletes, the picture turned out to be far paler.
What exactly was tested
A systematic review with meta-analysis (Frontiers in Physiology, 2026) took a narrow and well-posed question: does compression clothing worn after exercise improve subsequent endurance performance and reduce delayed-onset muscle soreness in adult endurance athletes.
The analysis included nine studies and 158 participants — six with a crossover design, three with parallel groups. Compression was compared with no compression, ordinary clothing, a sham, passive recovery or lower-pressure variants.
The results, read honestly
Delayed-onset soreness at 24 hours (four studies): Hedges' g = 0.62, but the 95% confidence interval runs from −0.57 to 1.82, with heterogeneity I² = 74.0%.
There is a direction in favour of compression. But the interval confidently crosses zero: it allows for both a noticeable benefit and a noticeable harm. This is exactly the situation where the mean value looks encouraging while almost nothing can be said about the real effect.
Acute soreness in the first two hours (three studies): g = 0.38, 95% CI from −0.67 to 1.42, I² = 51.0%. Same story.
Effect on subsequent performance: the results could not be pooled at all — because of heterogeneity and because the recovery effect in these studies could not be isolated separately. The authors state outright that the question remains unresolved.
Overall quality assessment: very low certainty of evidence, with a high risk of bias in 10 assessments out of 11.
The problem that cannot be worked around
The authors single out the thing that makes the whole field shaky: blinding here is either limited or implausible.
Think about it: you know perfectly well whether you have compression tights on or not. You feel it physically. That means a classic placebo is impossible, while the main measured outcome — subjective soreness — is maximally sensitive to expectations. Someone who believes in compression and feels it on their skin will rate their legs as fresher. This is not deception, it is how the mind works.
That is exactly why the authors call the soreness ratings "vulnerable to expectancy effects". And the one outcome that expectations influence less — objective performance — is precisely the one that resisted analysis.
To be fair: a separate 2025 meta-analysis (27 studies) in a broader sample reported a significant recovery effect of compression for strength and power, particularly in the window from 1 to 24 hours after exercise. But that is a different population and different outcomes — you cannot transfer them directly to a long-distance runner.
What to do with this
Don't throw them out, but don't expect miracles either.
- There is no harm. Not one of the studies showed a worsening. If you are more comfortable in compression, wear it.
- A subjective effect is still an effect. If your legs "feel fresher" and you head out the next day more relaxed, that has practical value even if the mechanism sits in your head.
- But not at the expense of the basics. Compression does not replace sleep, nutrition and recovery days — and those are where your attention and money should go first.
- Flights are a separate scenario. Compression garments on long flights are used on different, medical grounds (venous stasis during many hours of immobility), and that is not the question this review examined.
- Do not confuse it with medical compression. Medical compression hosiery with a prescribed pressure class is a different story with different indications.
Key points
- The 2026 meta-analysis in endurance athletes: 9 studies, 158 participants.
- Soreness at 24 hours: g = 0.62, but the CI runs from −0.57 to 1.82 — zero is inside the interval, so the conclusion is indeterminate.
- Acute soreness: g = 0.38, CI from −0.67 to 1.42 — the same thing.
- The effect on subsequent performance could not be pooled — the question is open.
- Very low certainty of evidence, high risk of bias in 10 assessments out of 11.
- The root of the problem is the impossibility of blinding: subjective soreness cannot be separated from expectations.
- In practice: harmless, possibly pleasant, but the priority is sleep, nutrition and recovery days.
Sources: “Effects of Post-Exercise Compression Garments on Subsequent Endurance Performance and Delayed-Onset Muscle Soreness in Endurance Athletes: A Systematic Review and Meta-Analysis”, Frontiers in Physiology, 2026. https://doi.org/10.3389/fphys.2026.1908148. “Effects of Compression Garments on Muscle Strength and Power Recovery Post-Exercise: A Systematic Review and Meta-Analysis”, Life, 2025. https://www.mdpi.com/2075-1729/15/3/438. “Compression Garments and Recovery from Exercise: A Meta-Analysis”, Sports Medicine. https://doi.org/10.1007/s40279-017-0728-9