@resilient_sc says hybrid training will fade

Strength coach @resilient_sc used a recent X post to argue that hybrid training is a “diluted” blend of running and lifting and predicted the trend would fade within a few years. The post, which remained pinned on the account as of May 20, did not include data, links or a longer explanation of the claim. The comment landed as hybrid training has become a broader fitness label used by recreational runners, lifters and race formats such as Hyrox. Published research on concurrent training — the sports-science term closest to the hybrid model — shows tradeoffs can exist, but not in the sweeping terms used in the post. ### What did @resilient_sc actually say? The X post from @resilient_sc described hybrid training as a diluted combination of running and lifting and said it would fade in a few years. The account kept the post pinned on its timeline within the last 48 hours, signaling the comment was meant to stand as a headline view rather than a passing remark. (x.com) The post itself did not attach studies, training logs, before-and-after comparisons or performance data. That leaves the claim as an opinion statement rather than a documented finding. ### What do coaches and researchers usually mean by “hybrid training”? Sports-science literature generally refers to this approach as concurrent training: combining endurance work and resistance training in the same program. (x.com) In practice, that can mean a runner adding serious lifting, a lifter building race capacity, or an athlete training both qualities at once for an event format that demands them. Recent fitness coverage shows the term has also spread well beyond academic language. Consumer fitness outlets now use “hybrid training” and “hybrid athlete” to describe plans that mix strength work with running or conditioning, and competition formats such as Hyrox have added visibility to that model. ### Does the research say combining running and lifting is “diluted”? (link.springer.com) A 2023 systematic review and meta-analysis in *Sports Medicine* examined 59 studies with 1,346 participants and found a more conditional picture. The review reported small interference for lower-body strength adaptations in males, but not in females, and said untrained endurance athletes — but not trained or highly trained ones — showed impaired VO2max improvement under concurrent training. (runtothefinish.com) A separate 2023 systematic review and meta-analysis in *Frontiers in Physiology* found training order did not change VO2max outcomes, while doing strength before endurance produced somewhat better lower-limb strength gains. That points to programming effects, not a blanket conclusion that combining the two modes is inherently ineffective. (link.springer.com) A 2025 review in the *Journal of Functional Morphology and Kinesiology* said hybrid competition formats depend on integrating strength and endurance capacities and framed concurrent training as a central challenge for those events. That paper described the issue as one of balancing demands, not proving the category will disappear. ### Why are people arguing about this now? (pmc.ncbi.nlm.nih.gov) Hybrid training has become a visible part of online fitness culture as more recreational athletes try to build both strength and endurance instead of specializing early. Training guides, coaching content and event coverage now present the model as a mainstream option for people who want to run, lift and compete across formats in the same season. (mdpi.com) That popularity has also produced backlash from coaches who favor narrower specialization. The disagreement is often less about whether mixed training exists than about whether athletes should expect top-end results in two competing domains at once. ### What is the concrete next step for readers watching this debate? (runtothefinish.com) The pinned X post remained the clearest public statement from @resilient_sc on May 20, 2026. Any fuller explanation would most likely appear in a follow-up thread, a linked coaching post or a later pinned update on the same account, while the research base readers can check now is the concurrent-training literature cited above. (x.com) (liftstrong.com)