When Paul Lachance began radiation and chemotherapy for lip cancer, he had one question for his radiologist: How soon after treatment can I start training to crawl under barbed wire and run through the mud? Mr. Lachance, now 77 and cancer-free, competes in Spartan races. The popular obstacle-course events combine trail running with grueling challenges like climbing up cargo nets and scaling inverted walls. Spartan offers three core race distances: sprint (3 miles and 20 obstacles), super (8 miles and 25 obstacles) and beast...

Source: Wall Street Journal April 27, 2019 09:56 UTC