Runna, the app-based coaching platform owned by Strava since April 2025, has announced a partnership with Loughborough University to review how its training plans are built. Dr Richard Blagrove, Reader in Applied Exercise Physiology in the university's School of Sport, Exercise and Health Sciences, is leading the work, which was announced on August 25. The company says the review will focus on three areas that have been linked to reported injuries among users: pace and distance progression, the distribution of training intensity, and recovery protocols.
The announcement follows months of scrutiny. In February, the Wall Street Journal reported that physical therapists were seeing multiple Runna-related injury cases a week, and clinicians have pointed to stress fractures, shin splints and Achilles tendinopathy as the problems most often associated with fast-growing, app-guided novices. Strava also announced a separate research collaboration with Stanford on June 30, suggesting the wider group is trying to build an evidence base rather than rely on its own user data.
Runna's own defence rests on self-reported figures. It says its injury rate is 43 per cent below a 2015 Sports Medicine benchmark per 1,000 hours of training. That comparison should be read with caution: self-reported injury data collected inside an app is not equivalent to independently verified clinical records, and the benchmark population and definition of injury may differ. The Loughborough review is the first step towards testing such claims externally.
Dr Blagrove said the partnership would fold research on training load, progression and recovery into the logic Runna's coaches have already developed, producing something he argued generic AI-generated plans cannot replicate. That framing matters commercially as much as scientifically. As chatbots and large language models make free running plans trivially easy to generate, human-designed and academically reviewed programmes become a point of differentiation for paid platforms.
The practical test will be whether the review leads to visible changes, such as more conservative week-to-week progression for new runners, clearer guidance on easy running, or stricter recovery weeks. Injury prevention research has repeatedly shown that sudden jumps in load are among the more consistent risk factors, and readers who follow any app-generated plan may still benefit from treating pain that persists for several days as a signal to reduce load rather than a reason to push on.