GoPerform

Our Resting metabolic rate & Body composition services

Resting metabolic rate test

For individuals wanting to understand their daily caloric needs. If you want to lose, gain, or maintain weight, a scientifically accurate understanding of your resting metabolic rate is essential. 

Price £80
Duration

Approximately 45 minutes

Details

Before completing the test, we start with a short <10-minute consultation with one of our team to understand your goals and explain the process. The test involves wearing a gas sampling mask and being sat in a reclined position in a quiet room for 15-20 minutes.

To complete this test as accurately as possible, please arrive in a fasted state (only water for 8 hours prior to the test). 

Following significant weight loss and/or an increase in exercise, it is important to have your RMR retested. The body adapts to changes in weight and exercise by increasing or decreasing your RMR. A consistent, accurate measure of your RMR is crucial for establishing an appropriate calorie intake for a desired goal and allows further programmes to adjust for the variations in RMR caused by the change in body weight. 

What you'll get
  • Measured Resting Metabolic Rate (RMR) - kcal/day
  • Estimated total daily energy expenditure breakdown (RMR, digestion or TEF, and activity)
  • Information about energy balance

All information is included in a report you receive following the test.

Ready to book?

This test should be completed early in the morning, however, appointments before 9 AM will not be visible on our booking system.

Please call to book so that we can book your test in one of our early slots.

Body Composition Assessment

Using girth and skinfold measurements to understand body composition and estimate body fat %

Price £40
Duration

Approximately 30 minutes

Details

Using the ISAK (International Society for the Advancement of Kinanthropometry) methods for obtaining measurements, a pinch of skin (subcutaneous body fat) is taken and measured for its thickness using skinfold calipers at various sites across the body. 

Objectively assessing body composition can provide you with baseline information that can be used, following reassessment, to show the effectiveness of an intervention or training programme. Individual skinfold measurements, girth measurements, and sum of skinfolds (4 site or 7 site) are also useful to look at when comparing pre- and post-intervention. 

To obtain the measurements, we require access to the bicep, tricep, upper back, hip, thigh, abdomen, and calf. Please wear appropriate clothing so that this is possible.

What you'll get
  • Body fat %
  • Lean mass %
  • Girth measurements

All information is included in a detailed report you will receive following the test.

Ready to book?

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Resting Metabolic Rate Test & Body Composition Assessment

For individuals wanting to understand their daily caloric needs, and understand more about their body composition to optimise weight loss efforts.

Price £110
Duration

Approximately 60 minutes

Details

See above individual tests for information

What you'll get
  • Measured Resting Metabolic Rate (RMR) - kcal/day
  • Estimated total daily energy expenditure breakdown (RMR, digestion or TEF, and activity)
  • Body fat %
  • Lean mass %
  • Girth measurements
  • Detailed weight-loss plan (required kcal/day intake to achieve target weight)
    • Macronutrient (carbohydrate, fat, and protein) breakdown for required kcal/day intake
  • Information about energy balance

All information is included in a detailed ~12-page report you will receive following the test.

Ready to book?

This test should be completed early in the morning, however, appointments before 9 AM will not be visible on our booking system.

Please call to book so that we can book your test in one of our early slots.

Our experts

Tristan Baker | Head of Performance at GoPerform

Tristan Baker

Head of Performance

BSc, MSc (Strength & Conditioning), ASCC, CSCS

Tristan heads up our athletic performance department, he is a Loughborough University Sports Science graduate with an MSc in Strength and Conditioning from St Mary's University. 

Tristan has coached national and international athletes competing in Football, Formula 1, Athletics and Lacrosse as well as amateurs and professionals in Mixed Martial Arts, Rugby and Tennis. He is an accredited member of the UK Strength and Conditioning Association and the National Strength and Conditioning Association. He is also a certified nutrition coach. 

Jonny Nicholson

Jonny Nicholson

Performance Coach | Physiological Testing Lead

BSc (Hons) Sport & Exercise Science

Jonny has a desire to improve the accessibility of high-level physical training and testing support to enhance the performance and rehabilitation of everyday recreational athletes, young people, and training enthusiasts.

He currently leads the development and delivery of our physiological testing and young athlete programmes, and works as a performance coach offering 1-1 training and coaching on our Elevate and Rehab Programmes. 

Jonny holds a first class degree in (BSc) Sport and Exercise Science from the University of Bath. He has been coaching and delivering our services at GoPerform since 2020.

Robbie Wilde

Robbie Wilde

Performance Coach

BSc (Hons) Health & Exercise Science, MSc Strength & Conditioning

Robbie grew up in Crowthorne and competed at long jump with Bracknell Athletics Club in his youth. Following school he studied Health & Exercise Science (BSc) at Bath University followed by an MSc in Strength & Conditioning at Loughborough University. 

On completion of his studies in 2022, Robbie came to GoPerform for a 12 month internship in which he excelled. He then worked full-time positions at gyms in London & Winnersh before returning to join the GoPerform team full-time in early 2025.

Robbie specialises in Olympic Lifting and developing speed, acceleration & power with athletes. He has a strong athletics background and a particular interest in developing youth athletes and group training.

Heidi Zymela-Sandy

Heidi Zymela-Sandy

Sports Therapist | Performance & Nutrition Coach

BSc, MSc, MSc, Dip. IOPN

Heidi Zymela-Sandy is a post graduate Sports Therapist with an MSc from Buckinghamshire New University where she continues to work as an Associate Lecturer. Prior to Sports Therapy she had lots of experience as a Personal Trainer and Exercise Referral Specialist. She is great at combining high quality hands on treatment with an effective rehabilitation plan. Most recently Heidi has trained with the Institute of Performance Nutrition and qualified in Sports Nutrition, she is our resident expert.