Jack Daniels Articles

The Wheel Concept

Despite its apparent simplicity, the wheel is a complex mechanism with three mechanical properties that have significant implications for human movement

File under: Running,Speed,Technique
Tagged with: 180, Alberto Salazar, cadence, COM, concept, GCM, human movement, Jack Daniels, New York City Marathon, Rodolfo Margaria, Salazar Shuffle, The Lore of Running, Tim Noakes, vertical oscillation, wheel

Stride frequency

Stride frequency is one of the most important parameters of running technique. What is the optimal stride frequency in running and why?

File under: Health,Running,Science,Technique
Tagged with: 180, Daniels' Running Formula, force of gravity in running, hip joint, hip loading, Jack Daniels, knee joint, knee loading, running stride, stride frequency, stride length, stride rate