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Wu Tsai Human Performance Alliance Seminar
Speaker: Alex Gonzalez, Stanford University
Finding the Impulse: Measuring the Endurance Training Response Curve from Wearable Data
Abstract:
How will today’s workout affect your performance in the days that follow? Traditional approaches model performance as fitness minus fatigue, typically relying on a single metric like distance to represent training load. We extend current models of training response with a data-driven framework that estimates training response given not only training load, but also heat and altitude adaptations and activity covariates like route and time of day. Using 2.5 years of smartwatch data from 200 runners, we isolate how both light and heavy training affect subsequent performance – defined as heart rate for a given speed. For example, we found a long-lasting aerobic benefit and a short-term 2-day performance penalty from high heart rate sessions. Finally, we propose a framework for adding other signals, such as sleep, to better monitor an athlete’s changing physiological condition and optimize training.
Speaker: Yu Song, Kansas University
ACL Injury: Looking Beyond the Knee
Abstract:
Anterior cruciate ligament (ACL) injury is one of the most common and serious knee injuries in sports. While often thought of as a “knee injury,” the story does not stop at the knee. In fact, most ACL injuries happen without direct contact to the knee itself. Video studies report that in about 8–60% of cases, athletes experienced contact involving the trunk just before or around the time of injury. This presentation will highlight current evidence on how trunk motion and unexpected mid-air trunk perturbations affect lower-limb biomechanics during landing and change-of-direction movements, two situations commonly associated with ACL injury.
About the Seminar Series
The seminar series features speakers from across the institutions that make up the Alliance, covering topics related to our mission of uncovering the principles of performance and translating them to improved performance and care of athletes and all people.
The goal of the seminar series is to foster scientific exchange and the formation of new research collaborations through a set of research talks that are clear and compelling to researchers from a broad range of fields.
Please contact humanperformance@stanford.edu with any questions.