“I started training with John Sandberg my junior year in high school, and I have never looked back since. My baseball coach referred me because at 6’2 and 150 pounds, it was obvious I had room for improvement. In just one short year, my senior year of high school, I put on 50 pounds of lean muscle, improved my flexibility, and increased my cardiovascular strength to be competitive at the division I level. In addition to strength training, John has rehabbed me from two major injuries (a spinal L5 fracture and Tommy John surgery). His dedication to his craft is second to none, and his commitment to his client is evident through the elaborate workout routines, nutritional support, and overall fitness advice. John provided a platform to compete and battle the rigors of a division I athlete. The confidence of knowing my body was at a competitive advantage to achieve success led to further skill development and increased performance ability. John has been a constant in my athletic career, and I wouldn’t have it any other way. I would not be where I am today in baseball if it weren’t for John.”
– Max Allen, Georgetown University Baseball
“Training with John has helped me a lot through my hockey career. I started training with him several years ago and the results on and off the ice has been tremendous. Being able to have played in the NAHL and USHL, I’ve learned a lot about how important strength is. This year, playing at UCONN, I feel great about my body’s strength and I’m excited to see the results. Before going to John, I had never Olympic lifted anything or knew how many lifts there actually were. John taught me everything I know about lifting and how it relates to my body in a hockey sense. I feel so much more explosive, stronger, and even more confident when I’m on the ice because of his training style. It’s really helped me in my development and I couldn’t thank him enough.”
– Max Kalter, University of Connecticut Hockey

“I love looking back and remembering where I started off and where I have come. I started off 6’7” 165 pounds before I began working with John and now I am 6’ 9” 230 pounds. John helped me gain muscle while adding several inches to my vertical jump. I have used my strength and conditioning to help make me the best player I could be. I played 2 years with the USA boy’s youth Olympic team. I had gone on after that to play at Pepperdine University and start all four years. John has helped me bring my game to the next level as I recently had a chance to play with the Serbian national team, following which I signed a pro contract with Cannes (French Pro A Volleyball). It’s been amazing to see my progression in the sports of volleyball and I thank John for those gains.”
– Nik Antonijevic, AS Cannes Volleyball

“I started working with John 7 years ago when I was a scrawny high schooler with college and professional hockey aspirations. I did not, however, have the strength to compete at the higher levels. I knew that working on the ice was one thing, but I needed an extra edge to take my game further. After working with John for one year, my success at the AAA midget major level increased drastically and I was offered a spot in an elite junior hockey league. Since then we have continued to work together and my college dreams have been realized and now I am working towards making my professional dreams come true as well. I can honestly say I wouldn’t be anywhere close to where I am today without the help and knowledge of John.”
– Rob Linsmayer, Les Rapaces de Gap, France
“I first started training with John for the purpose of continuing to heal a back injury. John not only helped me recover, but he pushed me to become the strongest version of myself. During my first workout with John, he asked me what goal I wanted to accomplish with my training, to which I replied, “Get my back to 100%.” I have John to thank for helping me come back from the worst injury of my athletic career and for preparing me to be a trainee at the Joffrey Ballet School in NYC. John’s individualized workout programs, extensive knowledge, and enthusiastic dedication ensured steady progress and made for a productive and inspiring environment in which to train. Regardless of if I asked for a 6am or a 4:30pm workout, John was always there, engaged and committed to training me.”
– Sophie Allen, Joffrey Ballet School
“My name is Janet Chapman and I’ve been training with John Sandberg for over 3 years now. I decided to work with him because of the great results my husband and son had from training with John. My training goals were to get stronger, have more energy, and to drop weight.
My goals have been exceeded. I have gained a lot of strength and energy, I have lost over 15 pounds, my nutrition has improved, I sleep much better, and I think much more clearly. In summary, I’m a happier and more energetic person.
John is so knowledgeable and precise regarding every exercise and he knows exactly how far to push me so that I get the best results. He is expert in how the body works and the workouts have reduced the frequency, severity, and length of running and tennis related injuries. John is also very competent regarding nutrition, and has put me on a healthy eating program and supplement regimen that has allowed me to lose weight while increasing my energy level.
I am very satisfied with the results and I have referred friends to John. I look forward to continued training with John.”
– Janet Chapman
“I have been training with John for almost 3 years upon the recommendation of a friend because I developed a bone density issue and was given 1 year to improve my bone density. I needed weight bearing training.
Thanks to John, my bone density improved significantly in 1 year and I did not need to go on medication. Even my doctor was amazed at the improvement. This is a huge development. Besides strength training, John also helps me with balance by working on my core. This is very important to me. Also, I never enjoyed training before and did little exercise other than walking. Because of my experience with John, I look forward to training.
John customizes my workouts to my needs. He knows exactly how hard to push me to do my best and gives me confidence and makes me want to succeed.
I am beyond satisfied with the results. If not for John, I would be on medication that I don’t want to take.
Not only would I recommend John, I did recommend John! And I would recommend him again!”
– Debbie Grodsky