INTRODUCTION: In the majority of voluntary life circle models, motivations, restrictions and outcomes, are playing a significant role, which defines the degree and the duration of commitment. In literature is reported that, Greek voluntary sector has been influenced by crisis and after all the voluntary life circle factors. OBJECTIVE: To explore the changes of the volunteer life circle main variables in health sector due to Greek crisis and specially the motivations, the obstructions, the outcomes and the commitment. METHODS: A cross-sectional study was conducted during May-June 2016 in the Municipalities of Komotini and Alexandroupoli. Study population consisted of 213 volunteers (response rate 62.65%) who trade in health sector. Data collection was performed with questionnaires. Data analysis was performed with IBM SPSS version 21.0. RESULTS: Greek crisis caused a subtle increase of motivations and outcomes, a bigger to the commitment and to the temper of volunteering and also left obstructions constant. Correlations were found between changes of volunteering circle main variations with demographic and socio-economic factors, with characteristics of volunteering and voluntary organizations and also with changes of all above due crisis. According to multivariate linear regression analyses, the 17% of variability of motivation score was due to the increment of volunteering time, and the number of wider family that burden household. Also, the 9% of variability of obstruction score was due to the lack of income and the number of wider family that burden household. Moreover, the 17% of variability of outcomes score was due to the decrease of volunteering years and the number of wider family that burden household. CONCLUSIONS: The Greek crisis cause a subtle increase of motivations, outcomes, need for volunteering and a greater increase of commitment and will of mobility. Greater reasons of changes were the urge to satisfy personal and social needs that crises caused and also the changes of attitude towards volunteers own giving and voluntary organizations. The obstructions that caused by the lack of proper policies and the malaise of voluntary sector, do not allow the positive attitude towards volunteer restructure to become a reality. [ABSTRACT FROM AUTHOR]