Subject: Effects of exercise and physical activity on circulating inflammaging- and immunosenescence-related biomarkers in older adults and adults with chronic diseases: an umbrella review
What this means
Possibly a little for TNF-alpha and CRP, inconsistent for IL-6, and certainty is very low for every marker.
C · Interpret with caution. Limited, mixed or hard-to-translate evidence. Useful as direction, not as a rule.
This umbrella review pools 21 reviews on exercise or physical activity and circulating inflammatory biomarkers in older adults and adults with chronic diseases; 14 fully matched the research question and drove the conclusions. Exercise was associated with small reductions in TNF-alpha (point estimates −1.42 to −0.05; two of five confidence intervals excluding the null) and CRP (−0.65 to −0.47; two of three). IL-6 estimates were inconsistent (−0.81 to +0.09; two of five). Heterogeneity was frequently high (I² up to 94%). GRADE certainty was very low for every biomarker. Effects on immunosenescence markers remain an evidence gap.
Older adults and adults with chronic diseases. The abstract reports no separate outcomes for people aged 40 to 70.
21 reviews, of which 14 contributed to the conclusions.
The authors state that this evidence alone is insufficient to justify prescribing exercise to lower inflammatory biomarkers, and that it does not alter physical-activity recommendations based on clinical and functional outcomes.
The library had no source yet on exercise and inflammatory markers. A common argument is that exercise 'reduces inflammation'; this research shows the evidence for that is thin. REZA therefore does not use it as a reason to train. The reasons remain strength, fitness and everyday function, for which the evidence is much stronger. Anyone with an elevated inflammatory marker discusses that with their GP.
Umbrella review of systematic reviews and meta-analyses
Methodological quality (AMSTAR-2) was critically low in 11 reviews, low in nine and moderate in one. A sensitivity analysis excluding critically low reviews attenuated the signal. No new meta-analysis was performed; this is a structured narrative synthesis of review-level estimates. Populations differ, with high primary-study overlap within the multiple sclerosis reviews.
This information is general education about scientific research. It is not personal medical advice and does not replace diagnosis or treatment by a doctor or other healthcare professional. If you have symptoms, a medical condition or take medication, consult your GP or treating professional before changing your training or nutrition.
