![Christa Kaizer on Twitter: "A 10km run and a 17km walk within 24 hours, all within 8 months of a slipped disc injury. Not sure my body is happy with me 😬 Christa Kaizer on Twitter: "A 10km run and a 17km walk within 24 hours, all within 8 months of a slipped disc injury. Not sure my body is happy with me 😬](https://pbs.twimg.com/media/FK2I96DXEAI1roF.jpg:large)
Christa Kaizer on Twitter: "A 10km run and a 17km walk within 24 hours, all within 8 months of a slipped disc injury. Not sure my body is happy with me 😬
![Second 10km run tried a track instead of streets. Fair to say no hills drastically improved time, and wear on my feet! Happy running : r/Strava Second 10km run tried a track instead of streets. Fair to say no hills drastically improved time, and wear on my feet! Happy running : r/Strava](https://i.redd.it/0rc0xxgrx8j51.jpg)
Second 10km run tried a track instead of streets. Fair to say no hills drastically improved time, and wear on my feet! Happy running : r/Strava
![Health status of recreational runners over 10-km up to ultra-marathon distance based on data of the NURMI Study Step 2 | Scientific Reports Health status of recreational runners over 10-km up to ultra-marathon distance based on data of the NURMI Study Step 2 | Scientific Reports](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41598-022-13844-4/MediaObjects/41598_2022_13844_Fig1_HTML.png)