Petrus Du Plessis

Professional Rugby Player

“An entire gym and rehabilitation tool that fits in the palm of your hand that will work for all sports teams. This is a great product!”

How It Works

Home Use

An entire gym and rehabilitation tool that fits in your hand that will work for all sports teams.


The GS Trainer is a first of its kind, offering a personalised and data-driven training system that fits in the palm of your hand.Work out at home, in the park or even on holiday. The advanced and patented force transmitter technology, will with your target load entered, monitor every rep you do and counts all the sets.

Design and personalise your training programme according to you desired fitness goals. It’s like having your own personal trainer!

Neck profile graph

Precise Training Programmes

The team at Gatherer Systems have been collecting data for over 15 years from patients and elite athletes using the GS Analyser. Neuro-musculoskeletal data from:

– 1,000 cervical injuries
– 300 upper limb, shoulder, groin, lower limb injuries
– 250 professional and international rugby players
– Racing drivings from Formula One all the way to karting

Other sports including boxing, athletics, equine sports, gymnastics, rowing, shooting, Iron man, football, speedway, aerobatics, skeleton bob, ice skating and NFL.

This data forms the basis of our training programmes which is why we are leaders in data-driven rehabilitation. Now you can use that data to train and rehabilitate patients and athletes alike!

  • Strength Assessment

Switch to test mode to see how strong your muscles are. With this information, begin to craft your personalised training programme. Purchase of the GS Trainer grants you access to GS Online for further guidance on your self assessment.

  • Your Training Programme

Whether your looking to build strength or endurance, the data from the strength assessment will allow you to design a specific training programme.

40 KG


35 KG


55 KG


50 KG



The GS Trainer allows the individual to precisely train each muscle in accordance with fundamental strength and conditioning principles. The GS Trainer allows the individual to test their strength AND to use that data to deliver a maximal physiological stimulus to each muscle. The device is portable and lightweight, therefore you can train anywhere you like, only requiring a fixed point to attach the device to.

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Utilising 15 years of data across the spectrum of rugby at all levels and positions.  Prevent & rehab cervical injuries.

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From concussion prevention to groin injury rehabilitation. Find out how the GS Trainer can help you.

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Data-driven G Force training.  Utilising neck strength data collected over 15 years.  Find out more.

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Prevent serious head and neck injuries with data-driven neck training programmes.  Find out more.

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The neck is considered a crucial shock absorber in MMA. Leave guesswork at the door and train with real data.

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Data-driven neck training to give you a knock-out resistant & bulletproof neck. Find out how we can help.

Data-driven Training

The most effective way to train is to first have an understanding of what your physiological aim is e.g. do you want to become an endurance athlete or power-based athlete. This will determine what training programme you use to obtain your desired physiological profile.

For example, an endurance based training programme typically uses high repetitions with low weights/load and shorter recovery periods.

The amount of weight used is based on the maximum force that individual can generate in one repetition. A percentage of that is taken and this represents the training weight per repetition.

For example, if an individual can generate 50kg of weight on their biceps, an endurance training programme would typically be 40% of this – so 20kg with 15 repetitions, 3 sets with a 30-60 second recovery in-between sets.