Impact of Problematic Smartphone Use and Instagram Use Intensity on Self-Esteem with University Students from Physical Education Romero Rodríguez, José María Aznar Díaz, Inmaculada Marín Marín, José Antonio Soler Costa, Rebeca Rodríguez Jiménez, Carmen Problematic smartphone use Instagram use intensity Physical Education University students Self-esteem Mobile devices are a revolutionary element that offer many possibilities, although they can also cause problems for users. This is the case with the development of addictive behaviors that can affect personal well-being. The purpose of this paper has been to analyze the influence of smartphone addiction and Instagram use intensity on the self-esteem of Physical Education students. A cross-sectional research design was adopted by applying an online survey to a sample of undergraduate students (n = 385). The results showed that gender and age were factors that influenced the problematic use of the smartphone. In turn, there was a significant positive correlation between smartphone addiction and Instagram use intensity. The influence of smartphone addiction on students’ self-esteem was also highlighted. In contrast, Instagram use intensity did not affect self-esteem. Finally, the findings are discussed, and the main implications of the study are established, where physical education students take on a special role in order to avoid the improper use of smartphones and Instagram through sport. 2020-09-11T09:36:12Z 2020-09-11T09:36:12Z 2020-06-17 journal article Romero-Rodríguez, J. M., Aznar-Díaz, I., Marín-Marín, J. A., Soler-Costa, R., & Rodríguez-Jiménez, C. (2020). Impact of problematic smartphone use and instagram use intensity on self-esteem with university students from physical education. International journal of environmental research and public health, 17(12), 4336. [doi:10.3390/ijerph17124336] http://hdl.handle.net/10481/63385 10.3390/ijerph17124336 eng http://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España MDPI