Who are we? The team behind GPC Performance

The GPC Team

Lukasz Kirszenstein

Lukasz has been involved in the physical preparation of field-based and individual athletes for the past 15 years.

He has worked with a variety of hurling teams at all levels (club, U17, U21 and intercountry) winning multiple league, provincial and All- Ireland titles.

His experience isn’t only limited to the GAA athletes. In the past, Lukasz worked within Munster academy set up as well as martial artists and endurance athletes.

He holds a Degree in Exercise science and masters in anthropometry. He is also an accredited strength and conditioning coach through UKSCA and a certified strength and conditioning specialist with NSCA.

Teams that Lukasz worked in the past:

Clare Senior Hurling (All-Ireland Champions)
Galway Senior Hurling (All-Ireland Champions)
Tipperary Senior Hurling (All-Ireland Champions)
Glenstal Rugby (Senior Cup Champions)
Irish Women’s Rugby team (Six Nations Champions)
Munster Rugby (Academy)
Munster U18 provincial team
Clare minor hurling
Limerick U21 hurling

Education and certifications:

Degree in Physical Education and Sport
MSc in Anthropometry
UKSCA – ASCC - accredited strength and conditioning coach
NSCA – CSCS - certified strength and conditioning specialist
Certified Functional Movement Screen (FMS) professional

Brendan Egan

Since starting in the industry back in 2012, Brendan has been involved with the physical preparation of multiple athletes from field based teams to individual athletes.

Since 2015, Brendan has been involved with numerous GAA teams including club, U17, U21, Senior Inter-County and Camogie.

Brendan also works with a number of individual athletes including professional boxer, Kieran Molloy, and a number of motorsport drivers through the Williams Racing Formula 1 Academy.

In September 2018, Brendan was a Intern with The Citadel, a Division 1 College in South Carolina, working with eleven sports in total from D1 College Football to Golf.

Brendan completed his Degree in Strength and Conditioning in 2016 and is currently completing a PhD investigating the running and technical demands of Senior Inter-county hurling.

Teams that Brendan has worked with:

Williams Racing Driver Academy Programme
Lead S&C Dublin Senior Hurling 2023-Present
Lead S&C Offaly Senior Hurling 2022
Lead S&C Westmeath Senior Hurling 2021 (Joe McDonagh Champions)
Lead S&C Galway Minor Hurling 2019 (All-Ireland Champions)
Lead S&C Galway U21 Hurling 2017/18
Assistant S&C Galway Senior Hurling 2016 + 2019
Lead S&C Padraig Pearses Football (Roscommon Senior Champions 2021)
The Citadel Strength and Conditioning 2018

Education and Certifications:

BSc Sports Strength and Conditioning
IRB Level 1 Strength and Conditioning Coach
EXOS Performance Specialist

Niall Kierse

With nearly a decade of experience at the highest level of professional sport, Niall has helped elite athletes recover, perform, and return to peak condition.

His career has taken him from the rugby pitches of Munster, Harlequins, and London Irish, to the championship intensity of the Clare Senior Hurlers, and into the heart of the NHS—supporting patients from all walks of life.

Now, he brings that same expertise directly to you through our online physiotherapy rehab service.

Every programme is personalised, backed by years of hands-on clinical experience, and designed to help you recover faster, move better, and feel stronger—whether you’re aiming to get back on the pitch or simply live pain-free.

Gavin Rackard

Gavin Rackard is a highly credentialed Sport and Exercise Nutritionist with nine years of experience in elite sports. His background makes him well-suited for providing evidence-based online nutrition coaching.

Top-Tier Qualifications: Holds an MSc in Sport and Exercise Nutrition and is a registered SENR Practitioner.

Elite Athlete Experience: As Lead Performance Nutritionist for Connacht Rugby and other top-tier teams, he has extensive experience educating athletes and creating individualized nutrition programs.

Diverse Clientele: Has successfully worked with a wide range of athletes, from professional rugby players to senior GAA players with varying ages, lifestyles, and nutritional knowledge.

Evidence-Informed Practice: Currently a PhD researcher, ensuring his coaching is based on the latest scientific findings in nutrition