KULG now detects running injury risk
Research involving over 5,200 runners, titled “How much running is too much? Identifying high-risk running sessions in a 5200-person cohort study”, examined whether an increase in running distance during a single session or over the course of a week, compared with the preceding period, was linked to a higher risk of running-related overuse injuries.
Published in 2025, this 18-month cohort study is the largest of its kind to date. It analysed Garmin data from adult runners who self-reported running-related overuse injuries and found that the risk of injury increases significantly when a single run exceeds 10% of the longest run in the past 30 days.
To address this, KULG app now offers an injury risk detection insight, making it easier for runners to monitor their run volume and progress safely. For longer runs (15+ km), KULG flags three levels of risk:
⚡ Low: 10–30% longer
🔥 Average: 31–100% longer
🚨 High: more than 100% longer
Collaborating with scientists, KULG turns fragmented wearable data into science-based, easy-to-understand personal training insights, helping runners balance effort and recovery while reaching their goals healthy.
We aim to make running smart, safe, and sustainable. One step at a time.
* Schuster Brandt Frandsen J, et al. Br J Sports Med 2025;59:1203–1210.
doi:10.1136/bjsports-2024-109380
