I have been working with David for over a year and its been one of the best experiences in physical training that I have ever had. David possesses the specialized knowledge to tailor my workouts to deal with my specific needs and personal issues. In addition to the cardiovascular, strength and stamina training, he has been able to help with specific soft tissue joint problems. I would highly recommend him to anyone who is seriously interested in improving their overall mental and physical health, particularly those of us over 60.