YOUR
LONGEVITY
PARTNER.

Nelson founded FTI and created the R4 Method. With 27 years in functional training and fitness, he supports people with acute and chronic musculoskeletal pain, sports injuries, pre- and post-surgery rehabilitation, and movement through every stage of life.

As FTI's co-founder and managing director, Karen sits at the heart of its daily operations and long-term growth. She brings more than two decades of personal-training experience to her leadership of the institute.

Karen has helped people with chronic pain and movement difficulties live with greater comfort and confidence. Her areas of specialisation include post-surgery and trauma rehabilitation, pre-, post- and perinatal programmes, medical rehabilitation Pilates, and weight-management programmes.

Her coaching is intuitive and responsive. Depending on what a client needs that day, she brings a listening ear, a refined training strategy, firm encouragement, or a combination of all three.

Jack is a soft-spoken, detail-oriented and patient coach whose driving purpose is helping clients live with less pain. He is known for bringing steady encouragement and close attention to every stage of a client’s progress.

His work spans weight management, resistance training, prehabilitation and rehabilitation, behavioural change, senior fitness, athletic training, body transformation and nutrition coaching. He is also recognised within FTI for his work with scoliosis.

After COVID-19 and subsequent lung infections led to the removal of one lung in 2022, Jack rebuilt his own health and returned to coaching. That experience adds personal perspective to the technical knowledge and perseverance he brings to clients working through difficult recoveries.

FTI's longest-serving trainer, Joseph is a Master Rehab and Functional Training Specialist who works with clients across age groups. Clients value his knowledge, humility, compassion and warm personality.

His areas of expertise include sports rehabilitation, nutrition, sports training and weight management. Joseph previously reduced his own weight from about 97kg to 67kg, a transformation that motivated his move from accounting into personal training.

That lived experience helps him understand what sustained change requires, whether a client is managing weight, working through pain or training for performance. His sessions combine practical strategy with the challenge and encouragement appropriate to each person.

Jia Yao began his movement journey as a competitive Judo athlete, developing a deep interest in performance and the foundations that help people stay active over the long term.

His dedication to the sport earned him the Sports Excellence Award, the Singapore School Sports Council Colours Award and multiple medals at national level. While studying Sports Coaching, he developed expertise in kinesiology, injury prevention and injury management.

Today he applies that background across rehabilitation, strength and conditioning, martial arts and functional training. He supports both athletes pursuing performance and people who want sustainable strength, confident movement and fewer setbacks from pain or injury.

With a foundation in Sports and Exercise Science, Boston specialises in functional training and rehabilitation. He holds a Diploma in Sports and Exercise Science from Republic Polytechnic, where he was placed on the Director’s Roll of Honour.

His qualifications span personal training, sports massage, injury prevention and therapy techniques, including NCSF Certified Personal Trainer and ISA-Qinetic Rehab Exercise Specialist credentials. His experience includes military, clinical and educational settings.

As a Platoon Sergeant and qualified trainer in the Singapore Armed Forces, Boston led more than 250 trainees in physical conditioning and injury prevention. A chiropractic internship also gave him experience supporting rehabilitation exercise and wellness education.

Inspired by his own recovery from training injuries and his grandmother’s experience of knee pain, Boston focuses on building strength, restoring movement and preventing injury. He brings an educational, empathetic coaching style to clients of different ages and starting points.

As a movement enthusiast and specialist certified under the Gray Institute, Brookbush Institute, Stott Pilates, and Alex Effer's Resilient Biomechanics, Herzy thrives in the outdoors, exploring diverse movement patterns as a form of therapy while keeping himself lithe and nimble.

Having navigated his own struggles with movement years ago, Herzy now channels that journey into helping others move with greater body awareness pain-free and stronger for years to come. In the aspects of working out, biomechanics and corrective exercise remain the pillars of his practice, complementing his dedication to weight training and martial arts, namely silat and taekwondo.

In his free time, Herzy enjoys being outdoors or cozying up in a café, whether losing himself in a good book or performing at a spoken word poetry slam.