About
What does Treun mean?
“Treun” is a Scottish Gaelic word meaning brave.
Treun Performance Consulting believes that bravery is at the heart of personal growth and elite performance. It takes courage to pursue ambitious goals, to reflect honestly, and to make meaningful changes—especially when they push you outside your comfort zone.
Bravery means facing your biggest challenges, thinking differently, and showing up when it’s easier to step back. It’s what separates those who quit from those who grow and excel.
That’s why Treun’s mission is simple:
To help you train the brave within.
A Canadian Company with Scottish Ancestral Roots
Treun Performance Consulting is proudly Canadian—founded by Cassandra, who has had the honour of serving her country through sport and as a civilian with the Canadian Armed Forces.
Cassandra also draws deep pride from her Scottish heritage. Through exploring her family’s lineage, she discovered stories of service—in war, medicine, and community—that shaped the generations before her.
Naming the company Treun is a tribute to that legacy. It’s a way to honour the resilience, courage, and sacrifice of her ancestors—qualities that continue to inspire the work she does today.
Meet Your CMPC
Cassandra Seguin, PhD
Cassandra is a Certified Mental Performance Consultant (CMPC) with over a decade of experience helping elite performers reach their potential. She is also a Professional Member and Approved Mentor with both the Canadian Sport Psychology Association (CSPA) and the Association for Applied Sport Psychology (AASP).
Her clients have included Olympic and professional athletes, elite teams, high-readiness military units, performing artists, executives, and academics. Cassandra specializes in elite performance optimization and the psychosocial aspects of sport-related concussion.
She studied at both Princeton University and the University of Ottawa, where she earned degrees in psychology and mental performance. She completed her Master’s in Human Kinetics (Mental Performance) in 2016 and completed her PhD (Mental Performance) in 2023, with award-winning research recognized by AASP, including the 2020 Student Award for Excellence in Science-Practitioner Endeavours.
Cassandra’s passion for mental performance began on the ice. A goaltender at the highest level, she competed for Team Canada, Team Ontario, and Princeton University, earning provincial and national championships and multiple top-goalie honours. These experiences taught her the power of mindset, resilience, and preparation—and inspired her mission to help others do the same.
Today, Cassandra brings that same high-performance mindset to her clients. Her approach combines evidence-based strategies with lived experience, helping you stay focused, adaptable, and mentally strong when it counts most.
