Introductions and Objectives
Urolithiasis is a common recurrent condition associated with significant quality of life impairments and personal and societal costs. Modifiable lifestyle risk factors include dehydration and diet. Although prolonged bed rest can also contribute to developing stones, little is known about physical activity patterns and urolithiasis. We explored relationships between Leisure Time Physical Activity (LTPA) and other lifestyle factors for symptomatic urolithiasis.

Methods
Surveys were administered to a convenience sample attending urology clinics at a tertiary care centre. Patients were asked about stone history, smoking, diet and supplement use. The International Physical Activity Questionnaire assessed LTPA in minutes/week of walking (WALK), moderate (MOD) and vigorous (VIG) activity. Regression analysis was used to identify associations between risk factors and history of symptomatic urolithiasis within 6 months.

Results
Out of 167 patients with a mean (SD) age of 56.7 (14.3) years and body mass index (BMI) of 27.3 (5.3) kg/m2, 62% were male and 78% were white. One third (N=57) reported symptomatic urolithiasis. There were no significant (p