The older runners in the study maintained roughly the same stride frequency as their younger counterparts (about 165 strides/minute). But they suffered from significantly shorter strides, which reduced their speed. The report revealed that stride length and running speed slowed by about 20 percent from age 20 to 59, and the loss of ankle power during this time frame was almost 48 percent.
Considering that achilles and calf strain are pretty typical complaints among older runners, this study makes some pretty good points. Although the authors admit that they’re not strength and conditioning coaches and therefore don’t make any specific recommendations, they concluded that masters runners might be able to run faster if they do more lower-leg strength and power training.