VDOT O2 Community Home Forums Message Board Purpose of TIR training

  • Author
  • Amos
    Post count: 0

    Hi, there are TIR 15-10-5 minutes or TIR 20-20-10 minutes, in the 18wks marathon training of the Dr. Daniels’ book. What’s the training purpose? For T, I, R or just speed training? Thank you.

Reply To: Purpose of TIR training
Your information: