Dr. Carlstedt is true pioneer in the field of sport psychology. Over the past 20 years he has validated the gold standard for athlete assessment and mental toughness training. His system is unique in that he has developed macro and micro analytic protocols to assess efficacy of the system through proper classification of confounding variables. Rather than anecdotal interpretation of results he he uses quantifiable measures such as heart rate to show changes in mental toughness. Dr. Carlstedt has been a former professional player and full-time consultant and coach on the professional tennis tours. He has coached or consulted with national tennis federations, professional players and numerous top-ranked junior competitors. He is a licensed clinical psychologist, board-certified sport psychologist, and board certified in applied clinical psychophysiology and biofeedback.