Our Story in Full Detail

New times require new projects and goals. Lifestyle changes don't happen in a day; you need to have a conscious effort and willingness to make those changes. If you have experienced an injury or have had pain, it's hard to know what to do. This can be frustrating and can end in anxiety. 

Knowing there was a better alternative, byrizz™ started already in 2010 with educational programs offering industry-leading certifications. The physiotherapist provided courses together with a team of coaches and therapists that increased the level of quality when it comes to certifications in the field of fitness.

Marcus and Frank started to build the byrizz™ Rehab & Performance App in 2019, even though the App was something they wanted to develop since years back. They both wanted to ensure that their patients and athletes got a better system to be followed up. The main goal is to deliver individualized programs designed to get patients out of pain, prevent injury, and improve athletes' performance. The byrizz™ App will offer personalized and customized training and rehabilitation programs that optimize your health with an intuitive approach.

The journey has just started. 

Past - Present - Future


Marcus and Frank got to know each other at Umeå University, Sweden. They both study Physiotherapy and courses in manual therapy and sports medicine at a higher level. As students, they spent lots of time at IKSU Sportcenter, the largest sports facility in Scandinavia. Frank worked there as a Personal Trainer and indoor cycling instructor while studying.


The curiosity and willingness to learn continued while they started their effective practices; Marcus in Östersund, Sweden, and Frank in Bodø, Norway. 


In June 2010, after being working with educational material for almost a year, their Training program got European accredited. They have educated Personal Trainers and certified hundreds of instructors.


Marcus got his first international appearance with golf elite athletes. He was responsible for the physical fitness of 10 top golfers from different nationalities at the European Golf Tour for three consecutive years while Frank started his second year with FK Bodø Glimt. The team plays today at the top tier in Norway and has become one of the best football teams in Scandinavia. Frank worked with the team in between 2010-2019 - The last three years as Head of Performance. 


Summer sports got changed with winter sports - Marcus joined The Swedish National Biathlon Team and introduced new ways of thinking regarding prehab and rehab for the athletes. Marcus works today with World and Olympic champions in both Cross Country Skiing and Biathlon. 


Headhunted by the National Head Coach, Marcus got the opportunity to be Head of Physiotherapy and S&C for The Swedish Cross-Country National Team. Marcus has followed athletes through several World Championships and  Olympic Games. Frank worked with the Cross-Country National Team between 2019-2020 and is now one of the physiotherapists following The Swedish Biathlon Team.


Several years of planning ended in the byrizz™ Rehab & Performance App. The application has a solid ground with many years working with clients and athletes at different levels. The byrizz™ app customizes your training throughout based on science and gained clinical experience.  

The saga continues...

Marcus Bystedt

BPT, CSCS, Founder & Partner

byrizz™ Coach Marcus is a Physiotherapist and Strength & Conditioning coach. He has studied Sports Physiology, Manual Therapy, and Sports Medicine at a higher level and has biomechanics, motor control, and neurodynamics as his main fields of interest. He has over 15 years of experience working with national and international athletes. Marcus is Head of Physiotherapy for The Swedish National Team in Biathlon and Head Contact for winter sports for The Swedish Olympic Committee.

“Keep moving forward and never stop developing skills”

Marcus Bystedt



Marcus completed his Physical Therapy degree at Umeå University in Sweden. He has several courses in Manual Therapy, biomechanics, and Sports Medicine. He is also a Strength & Conditioning coach. 

Favorite Topics

  • Human kinesiology
  • Biomechanics
  • Neurodynamics
  • Manual Therapy
  • Sports Medicine

Favorite Exercises

Marcus practices strength training, running and cross-country skiing. He is also a decent indoor Floor-ball player. 


  • Bachelors Degree in Physiotherapy (BPT)

  • Higher education in Manual Therapy and Sports Medicine

  • Certified Strength & Conditioning Coach (CSCS)

  • Advance courses in Human Kinesiology

Frank Rizzo

MSc, BPT, CSCS, Founder & Partner

byrizz™ Coach Frank finished his Master's Degree in Sports Medicine in February 2021 and has a bachelor's degree in Sports Science and Physiotherapy. He is a Specialist title in Physical Activity and Sports Medicine earned in 2022 and has been working with novice to elite athletes since 2006 with an intuitive mind to keep developing skills. Frank has worked as Head of Performance for FK Bodø Glimt at the top tier in Norway and is now one of the physiotherapists following elite level athletes in both Cross-Country and Biathlon. 

“Consistency in what ever you want or may do is Key”

Frank Rizzo



Frank has a Master's of Medical Science in and a Bachelors degree in Physiotherapy. He has several courses in human movement, functional training, and Strength & Conditioning training. 

Favorite Topics

  • Human Physiology
  • Training Load in Sports
  • Sports Medicine 
  • Strength & Conditioning training
  • Manual Therapy

Favorite Exercises

Running, cycling and strength training are the main activities that Frank likes the most. He`s also a recriational Tennis player.


  • Specialist title in Physical Activity and Sports Medicine (SPASM)

  • Master of Medical Science (MSc)

  • Bachelors Degree in Physiotherapy (BPT)

  • Higher education in Manual Therapy 

  • Certified Strength & Conditioning Coach (CSCS)

  • Several courses in Human movement & Screening 

What People say


Team Head Coach XC Sweden 2013-2019

"Marcus and Frank are two physiotherapists who work specific and purposefully, with good knowledge and experience at the core of their work! They are skilled in dialogue when they operate with athletes and involve trainers and coaches in the daily process around prehab or rehab".

Johan Granath

Womens Head Coach XC Sweden 2013-2018

"Frank and Marcus have been hugely important to me as a coach. Through their knowledge and personalities we've had a very close, rewarding and evolving dialogue all year round. This is something that result in putting the athlete in focus at all times. Their ability to translate strength, mobility, power and torsional rigidity in a professional way into the ski track, with an incredible feeling for further develop the athletes that I work with, is something that I have rarely seen."

Stina Nilsson

XC World and Olympic Champion

"As an elite athlete, you are constantly looking for new ways to develop yourself. You're often on the limit, and you cannot stop and find internal weaknesses and inequalities in the body because you are so focused only on performing. Then it is incredibly important to have good people around you that can detect weaknesses before it becomes an injury. Marcus is awesome at this!"


Mattias Nilsson

Coach Swedish Biathlon National Team

"Marcus and Frank have been a great help to the team. Fast help combined with great knowledge to rehab injuries - That´s a winning combination."


Martin Bjørnbak

Molde FK, Eliteserien

"Never during my football career have I met such a committed and aspiring physical therapist like Frank. He had a sincere feeling that you could count on him at any time of the day, always ready. I have worked with him for two periods and, I can say with certainty that he has helped me to get where I am today."

Amor Layouni

Tunisia National Team

"I have a lot to thank Frank during my time at FK Bodø Glimt where I developed tremendously as a football player. He was always there with his support and professionalism. Everything he did was bulletproof. I came as a Fiat and left as a Ferrari with Frank's help".

Zarek Valentin

Minnesota United MLS, Puerto Rico National Team

"Tearing my Achilles was the worst injury I’ve ever had in my life. I questioned my career and didn’t know how I’d ever recover. Thankfully from the first moment, until I stepped onto the pitch, Frank was there for me. His expertise, compassion and work rate helped me get back faster than anybody thought possible. I owe a lot to Frank".

Håkon Evjen

AZ Alkmaar, Eredivisie

"Frank helped med getting back from a bad groin injury and without his help I would have a hard time believing that I could have played today as a pro in Holland".

Mathias normann

FC Dynamo Moscow

"Frank helped me during a groin and knee injury and got me back stronger than before - He's a truly professional".