About us

SG Private Trainers, or SGPT, is a group of four personal trainers.

All of our trainers are certified and have many years of experience helping others who wish to achieve the best for their body.

Instead of having to go to a gym, wasting time and paying money for your fitness plan, why not try a personal trainer with you at home that can get you the same results?

Here is the profile of our trainers:


Doug is a fitness and sports enthusiast all his life. Now, he is finally able to fulfill his goal of being a personal trainer and start helping others achieve their goals while at the same time do something he thoroughly enjoys and is greatly passionate about. His rational approach to weight loss/muscle gain coupled with high levels of motivation makes him one of the best candidates to help you fulfill your goals of building a better body.

A four-time Ironman Triathlon finisher, Doug currently competes internationally in paddling events in dragon boating, and outrigger canoe. He specializes in weight management as well as designing custom, functional, movement based exercise programs to enhance athletic performance in both competitions and everyday life. 


  • ACE Personal Trainer Certification
  • TRX Certified Trainer
  • Adv. First Aid CPR & AED
  • Certified personal trainer - ISSA
  • Certified Fitness Instructor and Personal Trainer – Asian Academy for Sports and Fitness
  • Certified Trainer, for Integrated Corrective Exercise – Australia Graduate School of Health and Sport Science

Ethan C. Liu

Ethan is an experienced trainer whose specialties lie in clinical rehabilitation and sports medicine.

He has worked alongside renown physiotherapists, chiropractors and osteopaths assisting them in the area of exercise rehabilitation and sports medicine.

He also specializes in working with clients who have histories of shoulder, spine or knee problems.

Edith Cowan University (ECU) - Australia
Bachelor of Science- (Exercise & Sports Science)
Nanyang Polytechnic (NYP) - Singapore 
Diploma in Sports & Wellness 
Australian Graduate School of Health & Sports Science (AGSHSS) 
Integrated Corrective Exercise Practitioner
    • MediBall (Level 1)
    • Corrective Exercise (Level 2)
    • Integrated Stability Training (Level 3)

Atvin Chen

A personal trainer with more than 10 years of experience, Atvin previously ran his own training business in Australia. Prior to being a freelance personal trainer, Atvin was Personal Training Manager at the well known Singapore fitness chain Planet Fitness.
Atvin works with his clients to incorporate bodyweight exercises, bands, cables and medicine balls with traditional resistance training for the best possible results. Every session is different and clients can look back through the extensive records of their workout to see progression and results. Atvin also prides himself on getting to know his clients and making workouts enjoyable and interactive.
Bachelor of Sport Science, Edith Cowan University (Australia)
First Aid/CPR Certification, St John’s Ambulance Singapore
Fitness Leader and Advanced Aerobic Conditioning, Fitness Industry Australia
Level 6 Certification Pilates (Polestar Studio Series)

Melezze B

Melezza has 8 years of experience in the health and fitness industry, having worked with athletes, de-conditioned individuals, the physically challenged, children and pre and post natal women.

She specialises in postural correction, injury rehabilitation and sports specific training. During one to one tailored personal training sessions with Catherine, she will address all physical issues, ensuring targets are met and goals achieved. Eg: Weight loss, bodysculpting, performance enhancement, total health benefit.
UK YMCA & REPS Advanced Gym Instructor
OPTIMUM FITNESS Personal Trainer & Rehabilitation Specialist
ARAD & AISTD Ballet Teacher
Traditional Thai Yoga Massage Practitioner