A bibliometric analysis of 858 telomere-exercise publications from 2000–2025 documents a field-wide mechanistic pivot: the research landscape shifted from descriptive leukocyte telomere length (LTL) measurements toward redox biology, mitochondrial homeostasis, and epigenetic clock integration. Publication volume grew from 2 papers annually in 2000 to 71 in 2025 (CAGR 15.4%), with oxidative stress and inflammation confirmed as central network hubs. The central mechanistic thesis: aerobic training and HIIT preserve telomeres primarily through hormesis-driven antioxidant upregulation, mitochondrial quality control, and non-canonical telomerase activation beyond simple DNA-end capping.
This analysis arrives at a productive inflection point. The redox-telomere axis is well-supported in cell models, but the bibliometric method here maps intellectual architecture rather than generating new causal evidence — an important distinction. The finding that non-canonical telomerase functions mediate some protective effects aligns with emerging data on TERT's mitochondrial trafficking and NF-κB suppression, making this more than a restatement of the "exercise is good" narrative. Practically, recommending LTL and telomerase activity as clinical biomarkers in preventive medicine remains premature without established reference ranges and standardized assays. The authors' own call for sex-stratified, multi-omics RCTs underscores the key gap: dose-response relationships remain poorly defined. For longevity-focused adults, the mechanistic framing strengthens the case for consistent aerobic and HIIT protocols, but precision prescriptions await harder causal data.