Personal Training

Colleen has been strengthening athletes for over 20 years. During her undergrad at The University of Michigan she played on the Women's Ice Hockey team and worked as an intern Strength & Conditioning Coach for Michigan Olympic teams. Colleen worked as a Graduate Assistant Strength & Conditioning coach while she completed her Master's Degree in Exercise Science from Eastern Michigan University. She then worked as a full time Assistant Strength coach at The University of Michigan, training collegiate, Olympic and professional athletes.

Since 2010 Colleen has been running her own company, Leenfitness, providing strength training for athletes and sports teams. Her training physiology has always been to have fun while aligning and strengthening the athlete, with a focus on injury prevention. Her interests are in creating the healthiest athletes through proper skeletal alignment, sleep and nutrition.

Fun facts about Colleen: she is one of nine children. Her and her Dalmatian, Valentino, love to go on bike rides.

A fitness professional since 1999, Mike O'Brien's mission is to serve the community by providing coaching, programming and customer service of the highest quality. He demands continuous improvement in these areas, from himself and his staff. Mike has coached over 100,000 athletes and has logged over 100,000 hours training others. To develop and refine his skills as a fitness trainer, Mike has worked with over twenty established personal trainers, group fitness instructors and coaches. But Mike has never settled in his study-he is always working to learn new coaching skills, new methods of injury prevention and new ideas for fitness programming. Prior to his career in athletic training, Mike was an early childhood educator for a decade, until a back injury inspired him to learn about human physiology. That study ignited a passion to teach others about injury prevention, and prompted Mike to shift his educational focus to athletics. His keen interest in injury prevention has never died, and Mike is known for taking great interest in his clients' injuries, demonstrating specific stretching and strengthening techniques to assist in recovery and developing modifications of exercises to allow clients to continue making fitness strides without exacerbating existing injuries.

Relevant Certifications:

• CPR and First Aid
• CrossFit Level 1 and 2
• CrossFit Coaches Prep Course
• CrossFit Endurance
• CrossFit Gymnastics
• CrossFit Kettlebell
• CrossFit Kids
• CrossFit Powerlifting
• USAW Level 1

I played competitive travel soccer from 12-18 years old. I started lifting weights after tearing my ACL and meniscus and having knee surgery at 19. I had spent 8 years working out with a focus on powerlifting and bodybuilding before finding CrossFit in 2017. I have been a part of Wolverine Strength & Conditioning since mid-2017, and in March 2021 I took the CrossFit Level 1 Certificate course. I have been coaching at WSC since November 2021 and have been doing private Personal Training since April 2022. For clients, I offer personalized training focused on strength development and general fitness through the use of functional movements and muscular hypertrophy, with an emphasis on movement quality and safety.