I would like to invite you to participate a survey to examine the relationship between personal psychological capitals, stress level, and running performance. You may find the link at https://docs.google.com/forms/d/1_XQvvZ7pE_1cg0akOUAN22ydDoiWuDPwRqmShUWIAgo/viewform and I would be very appreciate if you all can help me to fill the form and spread it to your running peers.