It's widely speculated that the trunk should remain constantly still, in a permanent state of contraction throughout the running cycle. At first glance, it might appear this way when the bare torso of an international athlete is on display. It certainly looks as if their trunk barely moves.
On paper, Jordan Hasay has had an incredibly straightforward marathon career including a 2:25:20 third in this year's Boston Marathon. But Hasay's career has been anything but straightforward.
Of course, the half-marathon is attractive to marathon runners because of its ease of recovery and to classic road runners because of its role as a springboard to the full marathon. But the half marathon (at 13.1 miles) is perhaps even more relevant to the 10K (at 6.2 miles) than the marathon (at 26.2 miles).
It's that time of year when 50,000 runners and walkers take the streets for Boulder's Memorial Day Tradition. Some people will achieve performances far superior to their previous bests, far better, even than their most optimistic expectations. How does this happen?
Last January, Jasmin Paris became the first woman to win Britain’s grueling 268-mile Montane Spine Race. What makes her feat more remarkable is that the 35-year-old smashed the course record, set by a male runner, by 12 hours - while stopping to pump breast milk for her 14-month old at aid stations along the route!