Lyle graduated from Loma Linda University in 1969 with a Bachelors Degree in Physical Therapy. He started his physical therapy career with Memorial Hospitals Association in Modesto, California as a Director of Physical Therapy until 1996. In 1977, he became co-owner of Andersen and Baim Physical Therapy, which later became Andersen Physical Therapy in 2006. Lyle obtained his certification of Work Capacity Evaluator, CWCE, in 1998 and as a result specializes in occupational injury and prevention. He manages programs with connections to local industries. Programs include: On-site Ergonomic Evaluation, Pre-Work Testing, and Functional Capacity Evaluations.