Author: Maria Holland

Goats Defying Gravity

This video describes how mountain goats can influence robot design based on the biomechanical principles that influence their impeccable balance. It explains how a mountain goat’s center of mass, controlled limb force generation, and specialized hoof anatomy can all be mimicked in robotics and why it is relevant.

Credits:

Biomechanics of the Butterfly Position

The butterfly position is the cornerstone of modern ice hockey goaltending. However, many have questioned if it is the cause of increasing non-contact goalie hip and groin injuries. In this Notre Dame Biomechanics in The Wild video, we investigate if the butterfly method is to blame.

References:

  1. Whiteside D, Deneweth JM, Bedi A, Zernicke RF, Goulet GC. Femoroacetabular Impingement in Elite Ice Hockey Goaltenders: Etiological Implications of On-Ice Hip Mechanics. The American Journal of Sports Medicine. 2015;43(7):1689-1697. doi:10.1177/0363546515578251
  2. Frayne, Ryan J., “The Effects of Ice Hockey Goaltender Leg Pads on Safety and Performance” (2016). Electronic Thesis and Dissertation Repository. 4221. https://ir.lib.uwo.ca/etd/4221
  3. Philippon MJ, Ho CP, Briggs KK, Stull J, LaPrade RF. Prevalence of Increased Alpha Angles as a Measure of Cam-Type Femoroacetabular Impingement in Youth Ice Hockey Players. The American Journal of Sports Medicine. 2013;41(6):1357-1362. doi:10.1177/0363546513483448
  4. Wörner T, Clarsen B, Thorborg K, Eek F. Elite Ice Hockey Goalkeepers Have a High Prevalence of Hip and Groin Problems Associated With Decreased Sporting Function: A Single-Season Prospective Cohort Study. Orthopaedic Journal of Sports Medicine. 2019;7(12). doi:10.1177/2325967119892586

Included Photos:

  • Équipe de hockey de Riverbend, Alma (Québec) – Unknown Author (Wikimedia)
  • Princeton hockey team LCCN2014688836 – Bain News Service (Wikimedia)
  • 1911 Coupe de Chamonix – England vs. Belgium – Meurisse M. Williams (Wikimedia)
  • Hockey-vs-rit 30289172813 o – United States Air Force Potographer (Wikimedia)
  • Portillo pd1 5 17 – Jenn G (Wikimedia)
  • FAI Example – From Whiteside [1]
  • Hip Rotations – From Whiteside [1]

Included Videos:

  • NHL Oldest Footage – Delta Highlights (YouTube)
  • Patrick Roy: The Butterfly Effect – Red Hot Hockey (YouTube)
  • Emergency Goalie Steals the Show in Chicago – NHL (YouTube)
  • Business people’s hands doing analysis and planning a business project in an office (Videezy)

Music:

  • Aurora on the Boulevard – National Sweetheart (YouTube Audio Library)