Abstract:An International Health, Racquet and Sportsclub Association's report (2013) recently referred to Cyprus as an emerging market in the fitness industry. Although Cypriot fitness agencies appear to be a growing business that both demands the acquisition of new members and, most importantly, the upkeep of the existing ones, not such research seems to have ever taken place in the country. This study's aim was to examine the patterns of service quality and satisfaction that may be used as safe predictors of members' psychological commitment to fitness industry, as psychological commitment has been suggested as one of the attitudinal components of loyalty. Four hundred and twenty questionnaires were distributed and 315 were completed and able to be used. Service quality was measured using the Brady and Cronin's (2001) scale, adjusted by Alexandris, Zahariadis, Tsorbatzoudis and Grouios (2004) in a Greek population of fitness centers' participants. Satisfaction was measured using a six-item scale proposed by Oliver (1997) while for Psychological commitment the three out of the four items forming the scale created by Scanlan, Simons, Carpenter, Schmidt and Keeler's (1993) was used. Alpha coefficients for all scales indicated their reliability. Linear Regression analysis through the stepwise method was performed in order to study whether: i) Service quality may predict satisfaction, ii) Satisfaction may predict psychological commitment and iii) Service quality may directly predict psychological commitment. The dimension "Employees" derived to be the key for the achievement of satisfaction and psychological commitment of Cyprian fitness centres members. Staff's recruitment and training strategies appear to be of great importance in order to succeed customer retention.