Sahrmann test score and frequency of Exercise-related transient abdominal pain were significantly different between groups(p = 0.002) with asymptomatic runners having significantly higher Sahrmann test scores (stronger muscles) than weekly and yearly Exercise-related transient abdominal pain groups (p = 0.001, p = 0.02).
There were significant between group differences for resting transversus abdominis thickness (p = 0.034) butnot for transversus abdominis thickness change (p = 0.555).
Conclusions: Participants who had stronger trunk muscles and larger resting Transversus abdominis size experienced Exercise related transient abdominal pain less.