Running Gait Analysis

The Boulder Center’s test, administered in a facility customized for sports medicine and athletic rehabilitation, adds a complexity not possible in a running shop. My evaluation began in an exam room, where Hilden performed strength tests and surveyed me on running habits.

Tim Hilden, an exercise physiologist, analyzes stop-motion video of the author’s stride

He scribbled notes as we walked a few hundred feet down a hall toward a lab. Inside, a video camera was aimed at a treadmill, ready to capture my stride to the fraction of a second. “Take a couple minutes to get your pace,” Hilden said, motioning toward the machine.

I came to Boulder with no outright issue. Unlike many test takers, I was injury-free and for the most part content with my technique. But the chance to make myself a better runner was alluring.

Hilden said many clients come with knee troubles, foot ailments like plantar fasciitis, or Achilles tendon problems. His test offers clinical conclusions for runners who may have long suffered with a compromised form.

On the treadmill, I started slow then kicked up to a 6:45-mile pace. Hilden and an assistant aimed lights and camera my way and launched a software program to analyze my stride.

In less than five minutes, Hilden had me jump off and come over to a monitor. He slowed the video down, and each subtle motion of my feet, ankles, knees, hips, and back became discernable on the screen.

“Look at your hip angle,” Hilden said, tracing a line on the monitor’s glass. His assistant annotated on a computer, measurements and angles popping onscreen. “Too much motion in that hip,” Hilden said.

Onscreen analyzation at the Boulder Center for Sports Medicine

The test quantified my feet’s pronation or the amount of inward roll, which measured 7.3 degrees with my right foot and 8.2 degrees for the left. My arm position was fine, Hilden said. But I was leaning too far forward. My stance width was too narrow on some strides.

I tried inserts and different shoes to better correct the pronation. Hilden measured the angles again, the stop-motion video letting him see my foot interact with varying shoe types.

After an hour of tests, my diagnosis was nothing dramatic. Hilden said my gait was good overall, though a few tweaks might improve efficiency and lessen wear and tear to keep me running longer.

He said my off-the-shelf footwear prescription is a stability shoe, which is the same recommendation a running shop has given me — for free — after two minutes on a treadmill.

But I left Boulder with in-depth knowledge of how I run. I also went away with a four-week plan on correcting subtle technique issues to improve my gait. On my quest for the perfect stride, every little thing counts.

—Stephen Regenold writes about outdoors gear at

Stephen Regenold

Stephen Regenold is Founder of GearJunkie, which he launched as a nationally-syndicated newspaper column in 2002. As a journalist and writer, Regenold has covered the outdoors industry for two decades, including as a correspondent for the New York Times. A father of five, Regenold and his wife live in Minneapolis.