Creatine Kinase
Respondent sequence number
Strenuous exercise in the past 3 days?
Did exercise make muscles sore/painful
Past 3 days muscle injury, bruise, injct
Injury/injct made muscles sore/painful
Other muscle pain/soreness last 3 days
Quantity: how long pain/aching/soreness
Unit: how long pain/aching/soreness