Does walking count as physical activity and is it healthier than long distance running?

From a musculoskeletal perspective, depends on joint. For hip & Achilles, walking is an important step when starting return to run process; for patellofemoral jt., walking is a good break... but also shows why so many get knee pain when doing a start to run program. pic.twitter.com/eSjAAbU7fD

— Rich Willy (@rwilly2003) August 25, 2019

Wie wirkt das Marathontraining auf das Knie?

Zwei Studien: aerzteblatt.de - Kniegelenkbeschwerden: Marathon belastet die Kniegelenke stark, die langfristigen Risiken sind aber unklar

bmjopensem.bmj.com - Can marathon running improve knee damage of middle-aged adults? A prospective cohort study: "Improvement to damaged subchondral bone of the tibial and femoral condyles was found following the marathon in novice runners, as well as worsening of the patella cartilage although asymptomatic".

ncbi.nlm.nih.gov - Magnetic Resonance Imaging Findings of Knees and Spines in Recreational Runners who Completed 1000 Marathons: "It is unclear whether degenerative changes in the spine are derived from running or aging".