At Pittman PT’s new Performance Center we offer revolutionary strength and agility speed training for middle/high school students in Collierville.

The 10 domains of fitness

The various aspects of physical health and performance. These domains are often used in fitness assessments to provide a comprehensive view of an individual’s overall fitness level.

  1. Cardiovascular Endurance: This refers to the ability of the heart and lungs to supply oxygen-rich blood to the working muscles during sustained physical activity.
  2. Muscular Strength: The maximum amount of force a muscle or muscle group can generate during a single contraction.
  3. Muscular Endurance: The ability of muscles to perform repetitive contractions over an extended period without fatigue.
  4. Flexibility: The range of motion available at a joint or group of joints. Good flexibility can enhance performance and reduce the risk of injury.
  5. Body Composition: The proportion of fat, muscle, and other tissues in the body. It’s not just about weight but also about the distribution of mass throughout the body.
  6. Power: The ability to exert maximal force in the shortest time possible. Power combines both strength and speed.
  7. Speed: The ability to move quickly across a distance or to perform a movement in a short period of time.
  8. Agility: The ability to change direction quickly and effectively while maintaining control and balance.
  9. Balance: The ability to maintain equilibrium while stationary or moving. It involves coordination of various muscle groups.
  10. Coordination: The ability to integrate multiple movements smoothly and efficiently. It encompasses the synchronization of body movements and muscle actions.

The secret to Parvin’s success lies in his emphasis on mechanics, consistency, and intensity. “We don’t go heavy, fast, or hard until proper mechanics are displayed,” he explains. This method has yielded remarkable results, with one athlete increasing their back squat from 125 to 265 pounds annually. Parvin’s goal is not just physical prowess but also to instill a sense of discipline and dedication that transcends sports.

“Lifting weights is crucial psychologically,” he notes. “It also leads to dedication in school. We aim to be role models for these kids, showing them the right and wrong ways to do things.”

Parvin’s journey to this point is as compelling as his coaching philosophy. A 20-plus-year veteran of the United States Air Force, he piloted the A-10 Warthog and commanded a squadron in Missouri. His military background instills a disciplined yet nurturing approach to coaching.

Pittman PT’s Performance Center

Co-run by Parvin and Jeremy from Pittman PT

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Class Schedule

Jeremiah Parvin

A Certified CrossFit Trainer with three levels of certification under his belt.

Parvin brings a unique combination of experience and expertise to this role. From his days as head coach at Wildcat CrossFit in Tucson, Arizona, to his recent endeavors at his company, Between Seasons Training, Parvin has honed a methodology tailored to boost strength, speed, endurance, and agility in young athletes.

Jeremiah Parvin is a retired Air Force Fighter Pilot and Certified CrossFit Trainer / CF-L3. Jeremiah’s CrossFit journey began in 2012 and functional fitness has captivated him ever since. In 2018, he completed his CrossFit Level 1 and CrossFit Weightlifting Certificates. Jeremiah began his coaching career on staff at WildCat CrossFit in Tucson, AZ. Upon completing the CrossFit Level 2 certificate, Jeremiah became the head coach, where he led the trainers and athletes through the challenging times of COVID. In 2021, he retired from the Air Force, accepted a job with FedEx, and moved to Collierville. Once settled in Collierville, Jeremiah continued his CrossFit journey as an athlete, and part time coach, at Battle Axe CrossFit and currently as athlete and part time coach at CrossFit Collierville. In 2022, Jeremiah established Between Seasons Training LLC to help kids find a love of functional fitness. Most recently, Jeremiah completed the CrossFit Level 3 certification in 2024

“Functional fitness is perfect for middle schoolers to gain speed, strength, and power,” Parvin shares. His approach is strategic and empathetic, focusing on his trainees’ holistic development. “In my garage, I could train up to four at a time. Now, we can handle twelve, allowing a broader impact on young talent.”


“We wanted Lawson to have strength and agility training for competitive and school baseball. He wanted to greatly improve his overall strength and speed to help him pitch, play shortstop, and catch for both teams. We have been very impressed with Jeremiah, as he has gone above and beyond to help Lawson. He has even helped him optimize his performance by creating an individual nutrition plan.” 

-Melissa Green

“We started Colt working out with Jeremiah because we wanted him to get stronger and faster. He plays 3 sports, and we wanted him to have an edge over others by gaining strength and speed. He wanted to work out and train, but with his age and accessibility to facilities, that was difficult. Working out with Jeremiah solved that problem since he works with young athletes. Also, it is more affordable than most training facilities. The number one hope is that he continues to grow stronger and faster. He has grown tremendously in his time with him, and I can only see him gaining more. He works out alone when he doesn’t have a slot with Jeremiah because he sees the results and benefits. We want that desire to be fit and healthy to be something he keeps with him throughout his life.”

-Christa Hankins

“I feel like Sutton has been playing catchup for 5 years. The infection took some things from him that he still hasn’t returned. As we move into a more competitive environment for sports (football and baseball), I am trying to give him a head start on physical conditioning/strength conditioning. For what he lacks in certain areas (speed), trying to develop in other areas that offset that weakness.” 

-Coleman Smith