About Us

O.n.S Health Studio (Oliver & Schroder), situated in Sea Point, was founded in 2014 by Kevin Oliver and Hermann Schroder. Our studio offers offers personal training services and has a range of cardiovascular equipment; 2 treadmills, Concept2 Skierg & Rower, Krankcycle, Arc Trainer; to challenge your cardiovascular fitness.

We have a variety of free weight strength equipment and a smaller room inside where group class, called Hectic Indoor small group Bootcamp classes, are presented. We offer 2 x showers and changing room facilities.

All trainers are qualified in CPR and the studio is equipped with an automated external defibrillator (AED)

Our Team

Herman Schroder (Large)

Sport Scientist

Hermann Schroder

+27 82 496 4694

Currently Sport Scientist at O.n.S Health Studio in Seapoint, Cape Town, with nine years’ experience in fitness training.


N.Dipl. Sport and Exercise Technology, Sport Scientist, Spinning Instructor, Internationally certified Master Trainer in Kettlebells, Suspension Training, Powerbag and BOSU.

Previous experience:
  • Fitness testing on SA men and women hockey teams, PTA
  • Conditioning coach for Cape Technicon netball and rugby -2001
  • Fitness and conditioning for Western Province Netball u/19 and u/21
  • Instructor at Constantia Virgin Active – 2001
  • Started Rowing Classes at Constantia Virgin Active, Aqua aerobics instructor, Boot camp and Functional training instructor.
  • Lecturer at ETA in 2001
  • Played provincial rugby: Western Province u/18 Cravenweek and Vodacom Cup
  • Blue Bulls 7’s, u/19, u/21, Vodacom Cup, SA u/19 & Currie Cup Boland Cavaliers
  • Specialist in Kettlebell, Powerbag, Suspension trainer.
  • S.W.E.A.T class group instructor
  • Was on Espresso morning show for 2 years and Dagbreek Kyknet (now Ontbytsake) as exercise specialist
  • The American Academy of Health and Fitness – JrFit Youth Fitness Specialist
  • Specialize in functional training – guarantee results in toning, fitness and weight loss.
  • CPR certified
Kevin Oliver (Large)


Kevin Oliver

+27 83 321 4336

Kevin studied at the University of Stellenbosch and obtained his BSc in Sport Science in 2005, and an Honours degree in Biokinetics in 2006.


BSc. (Hons. Biokinetics) Sport Science

After his honours degree he completed his internship at the Sport Science Institute of South Africa (SISSA). He has gained knowledge and expierence in all the different fields of Biokinetics, incl orthopaedic and cardiac rehabilitation, special population groups as well as high performance sport. He has also been the team biokineticist for a few rugby clubs.

Currently Kevin is in private practice in Sea Point. Here he manages a variety of patients, working with sports injuries, orthopeadic and cardiac rehabilitation, special population groups and high-performance athletes. Kevin is also a contributing editor in biokinetics for eCPD Healthcare. eCPD offers approved online courses for professionals across industries and specialisations.

Kevin is Selective Functional Movement Assessment (SFMA) and Y-balance certified and currently busy getting certified as Applied Movement Neurology practitioner.

  • CPR certified
  • Willem


    Willem Pieters

    BSc. (Hons. Biokinetics) Sport Science

    Willem obtained his Sport Science and Honours degree in Biokinetics at the University of Stellenbosch.

    He completed his internship at the Sport Science Institute of South Africa (SISSA) in 2014. He joined Kevin Oliver Biokineticists in 2015 and has since been a part of the team at O.n.S health Studio.

    He is dedicated to the science of movement and the application of exercise in rehabilitation and performance. His areas of expertise include injury prevention, orthopaedic rehabilitation, sport performance, geriatrics and the promotion of physical health.

    Willem also has a passion for a variety of sports, including mountain biking, ultra-running/trail running and long distance triathlon. Willem also enjoys helping others to prepare physically for such endurance events. 

    Jané Maritz (Large)

    Jané Maritz


    Highly motivated, goal orientated, and results driven accredited Biokineticist, Jané prides herself on maintaining a high standard of quality care with a unique patient focus approach. She strives to establish individualised rehabilitation programs to achieve desired goals and health management solutions.

    Jané originally comes from Plettenberg Bay and obtained her Sport Science and Honours degree at the University of Stellenbosch. Thereafter she completed her internship at The Sport Science Institute of South Africa (SSISA). It was at SSISA that she developed her passion for treating and assisting patients with orthopaedic injuries. Jané joined Kevin Oliver Biokinetics at O.N.S Health Studio in 2018.

    She is a certified Pilates, Step & Tone and Aerobic instructor. In her free time she will be found outdoors as adventure sports make up a big part of her approach to a healthy lifestyle. Her background as a ballet dancer has contributed to Jané embracing her creative side where she brings something new and inspiring to each patient that she treats.

    Jessica Hamilton (Large)

    Personal Trainer

    Jessica Hamilton

    After achieving her nutrition and personal training qualifications, Jessica came across Electro-Muscular Stimulation (EMS) training. The efficiency, intensity, safety and brilliant results of this alternative form of training inspired her to dedicate her passion of training people to be the best they can be through this form of training.

    FIT IN is a platform from which we all can achieve optimum health, strength and thus fullness of life. Exercise is a necessity and with all of our lively demands, exercise often gets put aside. Workouts require an extensive expenditure of time to enhance even one single ability, however by using Electro-muscular technology (EMS), one can achieve a genuine, full body workout with low stress on joints, in just 20 minutes.

    Jessica loves that EMS technology is applicable to all age groups and fitness levels, it is safe and works with individual ability. Everybody is different and Jessica believes in looking at the individual and guides them towards their physical and fitness goals through EMS training.

    “EMS has changed my way of training, my body and my life. Give me 20 minutes and let me help you change yours”. - Jessica Hamilton

    Carina Calitz (Large)

    Carina Calitz

    Personal Trainer

    Currently a Registered Biokineticist working at O.n.S Health Studio for Kevin Oliver Biokinetcists. Focussing on clients with sports injuries, specialized in orthopeadic and cardiac rehabilitation as well as special population (geriatrics & children) and high performance athletes.

    Carina also enjoys working with people to improve physical health through individual Biokinetics sessions and group fitness classes

    She is a Qualified Basi Pilates Instructor that give specific pilates classes & use pilates based exercises to complement the rehabilitation process. Carina completed her BSc Biokinetics Honours Degree at North-West University in 2016 after completing a Honours in Cardiovascular & Neuro Physiology in 2015.

    Working as a Biokineticist she coached & conditioned Hockey & Netball Teams at High School level. She enjoys working with young people and believe this is where she can motivate & encourage healthy lifestyle habits.

    In her free time she enjoys any outdoor and high adrenalin activities. She is a dancer & have done ballet, jazz, contemporary and hip hop for 20 years and enjoy cultural events and the theatre.

    “The body achieves what the mind believes.” - Carina Calitz

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