David Menhennett

Principal Trainer


Originally from a Martial Arts background, David became a full-time fitness professional in 1999, and hasn’t looked back since, thriving on the challenges of introducing people from all walks of life to intelligent movement. Based in Sydney, Australia, he then moved to Thailand for Personal Training with the Aman Resort Group at the end of 2002. From 2005 to 2010, David took on the role of Training Manager with Pure Fitness, responsible for the continuing education of Pure’s Personal Trainers. David is a master trainer with TRX, a master trainer with the National Academy of Sports Medicine, (NASM), and an apprentice master trainer with the Personal Training Academy Global, (PTA Global).



  • 2nd Dan Black belt – Zen Do Kai Karate System

  • ISSA Certified Personal Trainer

  • Fitness NSW Qualified Personal Trainer

  • AGSHSS Levels 1-4 Graduate & Mediball Pro Instructor

  • NASM Certified Personal Trainer and Educator

  • NASM Correctional Exercise Specialist

  • NASM Performance Enhancement Specialist

  • PTA Global Master Trainer

  • BOSU Instructor Course Graduate

  • Certified Les Mills RPM Instructor

  • TRX Master Trainer

  • Power Plate Level 1

  • Kettle Bell Level 2 Certification under Steve Cotter

  • STOTT Pilates Trained

David is an excellent instructor. Since commencing my sessions with LGN my core, upper and lower body strength and stamina have improved significantly. - L.G


I am proud of what I have achieved through LGN’s fitness sessions and I would highly recommend LGN to those of you who wish to challenge yourselves mentally whilst in the pursuit of a fitter, healthier physique.  - M.M

2010 - present

2010 - present