Meet our Personal Trainers

physical rehabilitation in Spring

Meet our Personal Trainers

How do we know The Rehab has the best trainers and coaches around? It’s simple--Dr. Bolz sought out specific collaborations with trainers and coaches with specific skill sets. His top priority was working with people that he trusts and has been a client of himself.

Scott Bolz - Personal Trainer in Spring, TX

Dr. Scott Bolz

Dr. Bolz started Spring Chiropractic more than 17 years ago. The Rehab was born as his passion project to provide a resource to better health and fitness for his patients and the community.

Dr. Bolz treats his patients using various chiropractic and physical medicine techniques, while emphasizing the need to strengthen the whole body through targeted rehabilitative exercises.His passion extends to helping his athlete patients return to play stronger than ever.

Dr. Bolz is certified by the American Chiropractic Board of Sports Physicians as a (CCSP) Certified Chiropractic Sports Practitioner. Dr. Bolz has extensive training in treating injured athletes both on and off the field. Dr. Bolz is a lower extremity certified ART (Active Release Technique) provider and a member of the ART Ironman Provider Network. Dr. Bolz is certified by the National Academy of Sports Medicine (NASM) as a Corrective Exercise Specialist (CES). Dr. Bolz is also certified Graston Technique provider. He has special interests in exercise physiology, sports injury rehabilitation and post-operative rehabilitation. He works closely with some of the top Orthopedics in the area. Dr. Bolz is also a Certified Personal Trainer which also allows him to design specific weight training programs and nutritional programs for his patients.

Aaron Mills - personal trainer in Spring, TX

Aaron Mills

Aaron has dedicated his life to fitness and sports endeavors. His earlier years were spent playing football and baseball. He also found passions for skateboarding, snowboarding, BMX, and mountain biking.

Not content to leave sports behind, he earned his ACE personal training certification. Aaron is continually improving his knowledge and skill set as evident by his additional certifications, including: ACE Orthopedic Exercise Specialist, NASM Fitness Nutrition Specialist, TRX Certification, LMT-1ViPR trainee. He also became a CrossFit L-1 coach.

Aaron has worked for a leading physical therapy clinic in The Woodlands, Texas, utilizing his vast knowledge of the body and his passion for returning patients to play. Aaron has also worked in top personal training gyms in the Woodlands and Spring areas for many years.

Aaron specializes in structuring targeted rehabilitation and personal training programs tailored to each patient’s individual needs. He has extensive experience ranging from young athletes and weekend warriors to those interested in starting to focus on their health and wellness for the first time.

In his spare time, Aaron competes in fitness competitions throughout the greater Houston area with his wife, Jen Mills. He also enjoys spending time with his three children, whether it is at the soccer field, the football field, or playing around at the beach.

Jennifer Mills - Spring personal trainer

Jennifer Mills

Jennifer is an all-around athlete. She grew up playing team sports and grew to love alternative sports with her husband, Aaron Mills. She found her true passion for fitness when she began challenging her own body in the gym and in fitness competitions.

Jennifer earned her ACE personal training certification and became an ACE Orthopedic Exercise Specialist. She also became a CrossFit L-1 coach. Jennifer continues her studies to earn additional certifications in targeted areas of specialization.

Jennifer has utilized her passion to inspire and help people by coaching and personal training at top gyms in the Woodlands and Spring areas for many years. She has vast experience training those that are pushing beyond their athletic and physical limits, and also those that are returning from injury and just getting started with health and wellness for the first time.

Jennifer specializes in customizing training and rehabilitation to meet specific goals—ranging from short and long-term, and beginner to elite athlete. Her love of fitness and her infectious laugh keep her clients engaged, committed, and having fun!

In her spare time, Jennifer competes in fitness competitions throughout the greater Houston area with her husband, Aaron Mills. She also enjoys being a soccer and football mom to her three kids. She is dedicated to family, fitness, and fun!

Jeff Nelms - Spring, TX personal trainer

Jeff Nelms

Jeff, a native of the Spring-area, has been active for most of his life. His earlier years were spent competing in football, basketball, and track. He was also taught the importance of nutrition from a young age by his parents. One thing remains the same for Jeff today--fitness and performance is an important cornerstone of Jeff's life.

Jeff was called to a career in fitness and rehabilitation from a young age. After he fractured his L-4 vertebrae in high school, he became determined to gain a better understanding of the human body and how it worked. Through this process of educating himself, he learned the value of helping people improve their lives through fitness. He has been happily doing it ever since!

Jeff earned his first training certification in 2007 and has continually expanded upon his knowledge and education base to assist a diversified group of dedicated clients over the years. He currently holds certifications in NCSF and ISSA. He is also TRX certified. In addition to personal training, Jeff has worked for the leading physical therapy clinic in The Woodlands, Texas, where he received additional training by the outstanding staff of PTs. Jeff's experience in physical therapy has enabled him to continue to expand and improve his knowledge base, particularly in the area of injury rehabilitation and return-to-play.

During the last few years, Jeff has closely worked with a diverse array of athletes, including high-level fencers, martial artists, football players, and track athletes. Over his career, Jeff has worked with clients ranging in ages from 12-88. He loves helping people achieve their goals, no matter the age they begin!

Jeff's passion extends beyond the superficial-he is passionate about his clients. For the early half of his career, Jeff worked very closely with those that were injured and sick. Many of his clients have battled cancer and were either going through treatments or had just completed treatments. As a show of support, Jeff would often dress up as a superhero along with his client and they would attend chemo sessions together.

In his spare time Jeff loves to spend time with his wife, Kelly Nelms, whom he met as a fellow trainer 5 years ago. He also loves to spend time with (and spoil) his nephews by finding new and fun ways to keep himself fit, challenged, and healthy. He is dedicated to helping people improve their life through fitness and making it fun along the way!

William Featherson - Spring personal trainer

William Featherston

William is a 6-time Ironman. He has competed in more than 60 triathlons, 45 marathons, and 10 ultramarathons. He has placed in the top five of competitors 12 times.

William has coached countless athletes, encouraging each client to reach their maximum potential while still having fun! He also hosts an annual kids’ biathlon in The Woodlands, Texas.

His passion is clear—run, bike, swim. Repeat.

While not running, biking, and swimming, he loves to spend time with his teenage son, friends and family.

Debbie Madden - personal trainer in Spring, TX

Debbie Madden

Debbie is a Registered Dietitian with a Masters in Nutrition and Board Certifications in Diabetes Education and Sports Nutrition. She has over 24 years of experience as a Registered Dietitian.

Debbie is passionate about helping others understand and manage their nutrition needs. She takes care to help others make life changes that work to improve overall health.

In her spare time, Debbie is an avid swimmer and triathlete. She is a member of FCST Masters Swim Team and has long worked with adult and student athletes. Debbie also a member of USA Triathlons. Debbie has a long history volunteering with Boys Scouts of America, FBISD VIPS, St Laurence Catholic Church, First Colony Gators and Clements Swim Teams.

Wild Spirit Yoga @ The Rehab

The Rehab is excited to offer private and small group yoga sessions in collaboration with Wild Spirit Yoga. 

Jennifer Carmack - yoga instructor in Spring, TX

Wild Spirit Yoga in Spring, TX

Jennifer Carmack, founder of Wild Spirit Yoga, has been teaching Hatha and Vinyasa yoga

for over 9 years and practicing yoga for over 17 years. She studied Yoga with 200 hours at the Shambhava School of Yoga in Colorado in 2008. She is also a Certified Master Teacher in Reiki (2006), Certified Pilates instructor (2010), and she teaches Nia and creative flow dance.

Uniting action of the body, the intention of the mind, to experience the energy that is moving within us, is the core to her yoga approach. Jennifer works one on one and with small groups in prenatal/postnatal and traditional yoga practice. Jennifer’s classes gently flow while offering step by step instruction in alignment and deepening your connection. A light-hearted class with a spiritual focus, Jennifer wants you to feel Yoga from the inside out. Her passion for yoga drives her day, every day!

In her spare time, Jennifer loves spending time with her family and the rest of her tribe. She also hosts countless workshops on all topics of yoga.


We look forward to hearing from you


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Office Hours

Our Regular Schedule

Spring Office


7:45 am-12:00 pm

2:00 pm-6:00 pm


7:45 am-12:00 pm

2:00 pm-5:00 pm


7:45 am-12:00 pm

2:00 pm-6:00 pm


7:45 am-12:00 pm


7:45 am-12:00 pm

2:00 pm-6:00 pm


9:00 am-12:00 pm