Q&A: Frequency/Consistency/Strength Advice

For beginner runners consistency is key, but is there a certain aspect of running (sessions per week, distance per session, mobility, strength work) that you feel should take a high priority?

What are the advantages & disadvantages of running shorter distances more often vs longer distances less often for injury risk and preparing for a marathon?

What would you recommend for strength training in the last 8 weeks before a marathon? What exercises, how often and at what intensity?

What are your best strength exercises if we are short of time?