Doctor of Chiropractic since 1993, graduating cum laude from Northwestern Health Sciences University

Diplomate of the American Clinical Board of Nutrition

Certified Chiropractic Sports Physician

Certified Strength and Conditioning Specialist

Active Release Technique (ART) Certified - Upper Extremity, Lower Extremity, Spine and Masters Certified

Master Strongfirst Certified Instructor, StrongFirst.com

Advanced Strength & Speed Strategies by Dr. Hartle is an educational system dedicated to improving athletes of all ages.

National-level presenter and creator with expertise in developing educational content and training. Distinguished certified S&C specialist and health educator with a Masters in health behavior change. I have designed and delivered online courses for coaches working across various levels – from entry-level coaches and personal trainers to specialists in youth development and high-performance athletes.

Have a respected and proven track record of effectively training coaches (both in-person and virtually) through engaging written, audio, and video content.

This experience, coupled with global seminar leadership across 16 countries and work with diverse populations (young coaches, professional athletes, and even Navy SEALs), demonstrates my ability to connect with a wide range of audiences.

Mindset and Meditation

My final semester of College I was fortunate enough to be an intern Strength and Conditioning Coach at the United States Air Force Academy. Upon completion, as an intern, I pursued my own business. I opened up a personal training studio that I ran for five years. Furthermore, I was interested in corporate management for a large fitness company (24-hour fitness). I became an assistant fitness manager and enjoyed learning more about the corporate world. Here I am today as Strength and Conditioning Coach at Vista Ridge High School. I enjoy the position that I am currently in and look forward to many more years.

A longtime associate of Kill, the relationship between Klein and NM State's head coach stretches back to 1994 when the two were on the same football staff at Saginaw Valley State.

Klein's most recent collegiate stop came at UCONN in Storrs, Conn., where he was the director of football strength & conditioning for a period of time beginning in January of 2017.

From 2010 until the early stages of 2017, Klein's services were called upon by Minnesota of the Big Ten. As the head strength & conditioning coach for the Gophers' football team, the squad made significant strides in strength, agility and endurance which have positively impacted their competitive performances.

For three years prior to joining the Gopher staff, Klein served as the Director of Sports Performance at Northern Illinois, where he oversaw sports performance for all 17 sports.

Klein coached at Southern Illinois from 2001-07. During his time at Southern Illinois, Klein designed the strength and conditioning programs for the five-time Missouri Valley Conference Champion Saluki men's basketball team and the three-time Gateway Conference Champion football team. Klein also helped design a new strength and conditioning center while he was at Southern Illinois.

Prior to taking on the strength and conditioning program, Klein coached the defensive line at SIU in 2000 and 2001. Klein coached the defensive line and implemented the strength and conditioning program at Emporia (Kan.) State from 1999-2000.

The NCAA Division II level is where Klein started as he signed on with Saginaw Valley State to be the Cardinals' assistant coach for both football and track & field from 1994-99. Along with his coaching duties, Klein designed and created the strength & conditioning program for the University Center, Mich., institution.

Klein's certifications include a Strength and Conditioning Specialist from the National Strength and Conditioning Association, a USA Weightlifting Club Coach from USA Weightlifting and Speed and Explosion from the National Association of Speed and Explosion.

A native of Apple Valley, Minn., Klein earned his bachelor's degree from Carleton College in 1993 before secure his master's degree from Emporia State in 2000. He and his wife, Allison, have two daughters, Taegan and Torin.

Professional strength and conditioning coach and sport scientist with over 10 years of experience. I have experience coaching athletes who have been selected in the NHL, MLS, and NFL draft as well as those currently signed by professional teams. As an expert in the field, I have been invited to speak on the topic at clinics for the National Strength and Conditioning Association. Those events include:

2020 Oregon State Clinic - "Post Match Recover: A Quantifiable Approach"

2020 New Brunswick Provincial Clinic - "Hockey Performance Training and Recovery"

2022 Nova Scotia Provincial Clinic - "What Is Sport Science: An Approach to Data Analysis From a Sports Performance Coach"

I am an Executive Council Member for the National Strength and Conditioning Association's Hockey Special Interest Group.

An expert in the field of recovery methods and implementation, I pride myself on developing athletes who have habits of success. My athletes learn how to best prepare and recover, leaving them in the best physical state they can be for competition.

strive to create an environment of success within and around the athlete.

19 years plus in the professional athlete world, both on teams and working directly with the athletes, has given me some pretty amazing experiences and insights on how the human body and mind connect and work together to create success in sports. I have found that success comes when the athlete really knows themselves and can have good safe “conversations” with their own body/mind, coaches and teammates. The culture created in and around the athletes is the key to long term success.

I use my education, experiences and curiosity in human movement and the nervous system paired with my sense and understanding of overall athlete development to help the athletes with their goals and success. Each athlete is different so I’m able to use my tool box of skills in movement, sports performance, visualization, somatic exercise, breath work, muscle therapy and coaching to create a plan with them and their team to become the best version of themselves. I believe strongly that it takes a village type effort for individuals at the top level and I thoroughly enjoy working with others for the betterment of the athlete and team.

I feel I have a unique and natural approach to sports performance because I feel everyone has within themselves the power to be great, it just needs to be molded and supported with science and mindset.

I truly enjoy learning from others and connecting in an authentic way to help the sports performance community grow and support the athletes we get to work with. I live with an open minded approach that has served me well in my career. I’m truly grateful for my colleagues and friends that have taught me so much by being great in their field of knowledge and are open to deep discussion and thoughts.

I strive to create an environment of success within and around the athlete. 19 years plus in the professional athlete world, both on teams and working directly with the athletes, has given me some pretty amazing experiences and insights on how the human body and mind connect and work together to create success in sports. I have found that success comes when the athlete really knows themselves and can have good safe “conversations” with their own body/mind, coaches and teammates. The culture created in and around the athletes is the key to long term success. I use my education, experiences and curiosity in human movement and the nervous system paired with my sense and understanding of overall athlete development to help the athletes with their goals and success. Each athlete is different so I’m able to use my tool box of skills in movement, sports performance, visualization, somatic exercise, breath work, muscle therapy and coaching to create a plan with them and their team to become the best version of themselves. I believe strongly that it takes a village type effort for individuals at the top level and I thoroughly enjoy working with others for the betterment of the athlete and team. I feel I have a unique and natural approach to sports performance because I feel everyone has within themselves the power to be great, it just needs to be molded and supported with science and mindset. I truly enjoy learning from others and connecting in an authentic way to help the sports performance community grow and support the athletes we get to work with. I live with an open minded approach that has served me well in my career. I’m truly grateful for my colleagues and friends that have taught me so much by being great in their field of knowledge and are open to deep discussion and thoughts.

Experienced Professor with a demonstrated history of working in the higher education industry. Strong research professional skilled in Athletic Training, Biomechanics, Lecturing, Athletics, and Instructional Design.