Faster Backstroke Starts



Swim Science Newsletter
April 2021
Request for Help in Academic Survey Research
Melanie Spiegel is a doctoral candidate in psychology and is asking for help from coaches. “As a part of my doctoral dissertation research, I am seeking participants for an anonymous online survey (15 minutes) about coaches’ attitudes and experiences regarding LEGAL coach-athlete intimate relationships. The anonymous nature of the survey means that there will be no way to access specific information about you. While responses will be recorded, the identity of the respondents will remain unknown.”
You can contact Melanie at
Faster Backstroke Start: Extend Hips Then Knees
A recent study compared backstroke start joint extension sequences (Nara, Ikeda, Shimojo, Sato , Ichikawa, Baba & Shimoyama, 2021). Male and female, adult, national caliber swimmers were tested using three different leg extension protocols:
  1. extend the hips before the knees,
  2. extend the hips and knees simultaneously, and
  3. extend the knees before the hips.
Extending the knees before the hips was significantly slower than the other two options, as shown in the graph below. The graph also shows the angles at the hip and knee when the toes left the wall. The data support the value of extending the hips before the knees.
Webinar on Strategies to Improve Arm Entry
The next ISCA webinar will address the arm entry in freestyle, backstroke, and butterfly and include information about how to minimize wasted time and shoulder stress. It will be on Zoom at am New York Time, March , 2021. Presenters include:
  • Coach Kathleen Prindle, Performance Aquatics
  • Coach Miller Albury
  • Dr. Rod Havriluk, ISCA Education Committee
Participants can ask questions via the chat room.
Podcast on Swimming Shoulder Injuries
ISCA Education Committee member Dr. Rod Havriluk was recently interviewed about the biomechanics of swimming shoulder injuries on Dr. Les Podlog’s Mettle Minds Podcast. Click to see the video on Youtube.
Former Olympians Needed For Study
A study of Olympians is being conducted to help retired athletes effectively cope with body changes. Contact for more info.
ISCA Membership
ISCA Certification Courses
ISCA Social Media
ISCA Science Partners

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