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This week we examine increased vertical oscillation. • Firstly to measure this displacement we can take a line through the pelvis at the highest point during flight phase, and then a line at lowest point during mid-stance. • Runners that have excessive vertical oscillation are can often be heard with a heavy landing. They also tend to show over striding and a low cadence. At toe off they possess angle of propulsion too vertical, which results in an increased vertical movement rather than a more preferable horizontal propulsion. • From the research we know those with an increased vertical oscillation also can experience • Increased peak knee extensor moment, peak vertical ground reaction force and braking impulse (Wille 2014) • Increased vertical displacement has been associated with low running economy (Moore 2016) (Folland, Allen et al. 2017) • Increased knee extensor moment, increased peak vertical GRF, increased AP GRF- (Heiderscheit, Chumanov et al. 2011) • How to address this. The two most effective cues to help with this include: • Increasing cadence (Heiderscheit 2011) • Lighter landing • Follow Enhance Running on Instagram @Enhance_Running and Facebook / enhancerunning • Disclaimer: Before attempting to change your technique, it is important to discuss with your Enhance running technician, or your health professional, if changes to your running technique may assist you. • References • • Heiderscheit, B. C., et al. (2011). Effects of step rate manipulation on joint mechanics during running. Med Sci Sports Exerc 43(2): 296-302. • • Folland, J. P., et al. (2017). RUNNING TECHNIQUE IS AN IMPORTANT COMPONENT OF RUNNING ECONOMY AND PERFORMANCE. Med Sci Sports Exerc. • • Moore, I. S. (2016). Is There an Economical Running Technique? A Review of Modifiable Biomechanical Factors Affecting Running Economy. Sports Med

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