Keith Spennewyn

Keith Spennewyn, MSc, FNIHS, is President and owner of the NIHS, a personal training certification corporation focusing on preparing certified trainers for the future.
Sept. 20 2006
Repetitive strain injuries or RSIs are now the single largest cause of occupational health problems in the United States . RSIs can occur in any activity requiring repetitive motions, but most often affect... View More