Given the followng: " The patient states she lives in a single-level home with her husband, who is in good health and is able to assist with any tasks or activities the patient is having difficulty with. The patient rates her general health as excellent and denies any smoking and reports very occasional alcohol consumption. The patient does state that she has completed exercises on a daily basis of one to one and a half hours a day. However, has not been able to complete these exercise routine since approximately June 2008, secondary to back pain. The patient is working full-time as a project manager, and is required to do extensive walking at various periods during a workday.

MEDICAL IMAGING: The patient states that she has had an MRI recently performed; however, the results are not available at the time of the evaluation. The patient states she is able to bring the report in upon next visit.

SUBJECTIVE: The patient rates her pain at 7/10 on a Pain Analog Scale, 0 to 10, 10 being worse. The patient describes her pain as a deep aching, primarily on the right lower back and gluteal region. Aggravating factors include stairs and prolonged driving, as well as general limitations with home tasks and projects. The patient states she is a very active individual and is noticing extreme limitations with ability to complete home tasks and projects she used to be able to complete."  Question: What is the patient's level of physical function? Please use JSON format in your answer.
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