TY  - JOUR
AU  - Liu, Di
AU  - Maimaitijiang, Remina
AU  - Gu, Jing
AU  - Zhong, Shuyi
AU  - Zhou, Mengping
AU  - Wu, Ziyue
AU  - Luo, Ao
AU  - Lu, Cong
AU  - Hao, Yuantao
PY  - 2019
DA  - 2019/9/10
TI  - Using the Unified Theory of Acceptance and Use of Technology (UTAUT) to Investigate the Intention to Use Physical Activity Apps: Cross-Sectional Survey
JO  - JMIR Mhealth Uhealth
SP  - e13127
VL  - 7
IS  - 9
KW  - intention
KW  - physical activity apps
KW  - university students
KW  - UTAUT
AB  - Background: Many university students are lacking adequate physical exercise and are failing to develop physical activity (PA) behaviors in China. PA app use could improve this situation. Objective: The aim of this study was to use the unified theory of acceptance and use of technology (UTAUT) to investigate the intention to use PA apps among university students in Guangzhou, China, and how body mass index (BMI) moderates the effects of UTAUT in explaining PA app use intention. Methods: A cross-sectional study was conducted among 1704 university students from different universities in Guangzhou, China. The UTAUT model was used to measure the determinants of intention to use PA apps. Results: Of the participants, 41.8% (611/1461) intended to use PA apps. All three UTAUT-related scales (performance expectancy, effort expectancy, and social influence) were positively associated with the intention to use PA apps after adjusting for background variables (adjusted odds ratio 1.10-1.31, P<.001). The performance expectancy scale had stronger associations with the intention to use PA apps among those whose BMI were beyond normal range compared with those whose BMI were within normal range (P<.001). Conclusions: UTAUT is useful for understanding university students’ intention to use PA apps. Potential moderating effects should be kept in mind when designing UTAUT-based interventions to improve PA via app use. 
SN  - 2291-5222
UR  - https://mhealth.jmir.org/2019/9/e13127
UR  - https://doi.org/10.2196/13127
UR  - http://www.ncbi.nlm.nih.gov/pubmed/31507269
DO  - 10.2196/13127
ID  - info:doi/10.2196/13127
ER  -