The Team - South West

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Simon Grodentz - Gloucestershire

Simon established Gfitness back in 2008. He began his professional career in fitness as a Personal Trainer. However, after working with vulnerable adults in some lines of his work; he turned his focus towards helping people stay well and happy within the care setting.

Simon is qualified in a wide range of fitness and wellbeing disciplines and runs many training courses for team members and care homes. He is committed to ensuring Gfitness provides the best possible service to as many people as possible. He can be contacted directly at for any questions or issues you may want help with.

Matthew Harris - Gloucestershire

Matthew Joined Simon as the second member of Gfitness back in 2015. Matthew showed that there was a demand for the services that Gfitness provides, not only in Gloucestershire but in other counties too.

Running his own classes for several years Matt is now also helping out with growth across the country and provides support for Gfitness instructors in terms of helping new instructors set up and marketing for the business. Matthew provides many of our falls prevention classes in Gloucestershire.

Matthew Harris
Tanya Gennaio

Tanya Gennaio - Gloucestershire

Tanya specialises in chair-based exercise classes in care and nursing homes as well as in the community. She can also supply massage therapy whether it be in Care or nursing homes or for individual clients.

Matthew Coopey - Gloucestershire

Matt has over 10 years in the fitness industry and specialises in chair-based exercise classes in care and nursing homes as well as in the community. He can also provide fun and entertaining sessions whether it be in Care homes or for individual clients on a 1-2-1 basis.


Matt also has a wide range of experience working in gyms and specialises in boxing padwork training. Matt is committed to provide the best service for his clients and represent Gfitness in the best way possible.

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Sarah Burford

Sarah Burford - Gloucestershire

Sarah Is an experienced member of the Gfitness team with a history in personal training. She is also a qualified lower back specialist.

Sarah is our main supplier of exercise for people with learning disabilities in care and nursing homes throughout Gloucestershire.

Alex Lambert - Bristol

Alex has been working in the health and fitness industry since 2012 after graduating from the University of Gloucestershire with a degree in Sports Education and has a real passion for delivering exercise for all ages and abilities.

Since then, he has managed a local health club, taught swimming lessons to children and adults, provided football coaching, including to those with disabilities and taken a variety of exercise classes including those for older adults. This is something he continues to do today having been a Level 3 Personal Trainer for since 2016.

I have a wealth of experience in the fitness industry and I'm now looking to use those skills to provide first class chair-based exercise to care and nursing homes and older adults to help improve their quality of life.

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Alion Smith

Ali Smith - Bristol

Ali is our Bristol based instructor.

She is a Level 3 Qualified Personal Trainer and Chair Based Exercise Instructor. Ali can provide exercise for older adults and people with disabilities

Michael Stockman - South Devon

Mike has been involved in sports and fitness from an early age and has been part of a variety of sports teams over the years.

Mike’s experience in the fitness industry has included teaching swimming and leading fitness classes as well as personal training, he is now working with Gfitness to focus his experience in exercise within care and nursing homes for older adults and people with disabilities.

Mike Stockman

Lee Leppington - East Devon/West Dorset

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Lee is a qualified Personal Trainer with many years experience in fitness training, he also has a background in Support work for adults with physical disabilities, learning disabilities and Autism, caring for the elderly, and is a former Royal Marine Commando. Lee works with people of all ages with varying abilities and backgrounds.


"I thoroughly enjoy my work and I will always go the extra mile to ensure that everyone feels included in order to help improve their health, feeling of general wellbeing and to give each individual a sense of purpose and achievement. I feel that exercise should be fun and enjoyable whilst effective and gratifying for both my clients and myself whether in groups or individually".

Lee also provides group or one to one Training Sessions, Chair Based Exercise and other exercise-based activities.

William Donohue - East Devon

As an Instructor and Exercise Specialist at G-Fitness, my focus is providing our audience with outstanding exercise and activity classes. I have established an ability to encourage and engage with all populations to optimise, and effectively improve their quality of life.


Previously a health and exercise scientist, running GP referral exercise programmes for chronic back pain and cancer, whilst applying well-developed knowledge as a practicing personal trainer/fitness class instructor. I completed a sports therapy qualification and begun delivering soft tissue treatments. Though endeavoured progression of the highest level, consequently completing a MSc in Sports Rehabilitation.


I now possess an extensive and complete exercise specialist and physical rehabilitation profile, with significant applicable training and experience in exercise prescription for all populations. As your G-Fitness Instructor and Exercise Specialist, I will implement my

entire expertise to achieve your state of optimal health.

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Ben Smith

Ben Smith - East Dorset

Ben has experience working with the elderly in a mental health setting since 2008. During this time, he has worked alongside Physiotherapists to help residents with fall prevention and passive movement exercises.

Ben is qualified in chair-based exercise and has been running a variety of classes such as upbeat exercise with music and props, chair based Tai Chi and Chinese self-massage to help with mindfulness through movement meditation.

“I have a passion for exercise and I believe that it should be fun, enjoyable and accessible to all. Exercise is not just for physical health it is also great for mental health and well-being.”

Antony Passmore - East Dorset

Antony has 20 years experience as a secondary school teacher, specialising in Physical Education and has worked with a wide range of age groups and with people with a variety or different disabilities. His more recent work has been in the care sector including domiciliary care, supported living with people with learning disabilities and residential care with people with dementia, as a support worker and activity coordinator.

Antony Is a Level 3 Personal Trainer and has Level 3 GP referral therefore can work with clients with chronic illness. Antony believes being active at some level should be accessible to anyone no matter their Ability and is essential to maintaining a good quality of life both physically and emotionally. 

Antony Passmore
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Karen Dowden - Cornwall

Karen is a qualified Level 3 Personal Trainer and Level 3 in Adapting Exercise for Independently Active Older People. Karen works within care and nursing homes throughout Cornwall with Gfitness as well as running chair-based exercise classes and classes for more mobile older adults in the local community. 


"I am passionate about helping older adults exercise whilst including fun activities in the classes, it is so rewarding to see how much people benefit from my sessions." 

Become a Gfitness Instructor