Flexibility training and working your TFL, hamstrings, and hip flexors help prevent injury and chronic pain in runners. The barre classes included a warm-up followed by a full body workout that included abdominal floor work and the use of props and a savasana. After asking why barre classes are recommended for runners, an instructor commented that “runners are notorious for having weak glutes and tight hamstrings, but some struggle to engage their abdominals.” These issues can hinder a runner’s performance and efficiency, as well as create a more injury prone environment.
Source: https://www.runnersworld.com/uk/training/cross-training/a30527579/barrecore-challenge/