Runners usually focus on nutrition, training, and recovery routines, but many forget about one key factor for avoiding injuries: sleep. A new study in Applied Sciences found that poor sleep can greatly raise a runner’s risk of getting hurt.
About 50 million Americans run, and almost half get injured each year. Knowing about this hidden risk is more important than ever.
Study Links Sleep Patterns to Injuries
Researchers studied 425 recreational runners to determine how their sleep habits might affect their risk of injury. They tracked:
- Sleep duration
- Sleep quality
- Insomnia symptoms
- Frequency of sleep interruptions
Based on the data, they found four types of sleepers:
- Steady sleepers: get good, restful sleep every night
- Poor sleepers: have low-quality sleep and don’t sleep long enough
- Efficient sleepers: sleep fewer hours but still get good-quality rest
- Fragmented sleepers: wake up often during the night and have broken sleep
The results stood out: Poor sleepers were 1.78 times more likely to get injured than steady sleepers. This means they had a 68% higher chance of injury over a year.
Why Sleep Matters for Runners
Lead researcher Dr. de Jonge says sleep is key for the body to repair itself. Muscles recover, tissues heal, and the nervous system resets during sleep. When runners don’t sleep well, their bodies have a harder time recovering from training stress, which makes injuries more likely.
“Sleep is a vital biological process… When sleep is disrupted, the risk of injury increases,” Dr. de Jonge explained.
This study shows that performance depends not only on miles run or strength gained, but also on rest. Poor sleep can cause:
- Slower recovery
- Weaker muscles
- Reduced focus
- Higher fatigue
- Increased risk of overuse injuries
For runners with long-term goals, sleep can be just as important as training or recovery plans.
