1. You are a track coach and one of your fi rst-year distance runners has a physical prior to the start of training and has a low hematocrit. Would you be concerned about this athlete’s low...

1. You are a track coach and one of your fi rst-year distance runners has a physical prior to the start of training and has a low hematocrit. Would you be concerned about this athlete’s low hematocrit?

2. During exercise, how can blood flow be increased to active muscle tissue?