Using mhealth technology to maintain patients' post-surgery rehabilitation adherence: A test of self-determination theory

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Lee, Alfred SY
Yung, Patrick SH
Ong, Michael TY
Lonsdale, Chris
Hagger, Martin S
Chan, Derwin KC
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2021
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Abstract

Background/purpose: The current study aims to examine the effectiveness of a smartphone application drive by self-determination theory, namely “ACL-Well”, on the maintenance of post-surgery rehabilitation adherence among patients of anterior cruciate ligament (ACL) rupture. Methods: Our study was a 4-month randomised control trial with three waves of assessments (i.e., baseline, 2-month, and 4-month). We recruited 95 outpatients (Mage=27.81 ± 8.67, range=18 to 53; Male=60.82%) who underwent ACL reconstruction surgery within 2 weeks. Participants were randomly assigned into intervention group (who received “ACLWell”) and control group (who did not receive “ACL-Well”). They completed measures of motivations and rehabilitation adherence. Growth mixture modeling with intent-to-treat principle by Mplus was used for data analysis. Results: The growth models showed that two classes-solution (i.e., high and low initial status) was the most appropriate. For the intervention effects, there was significant decline for the treatment motivation in the two classes of control group (Mslope=-.39 to -.12, p<.01) but not in the intervention group (Mslope=-.10 to -.08, p>.05). The two latent classes in control group had significant drops in rehabilitation adherence (Mslope= -.25 to -.15, p<.01). In intervention group, the class with higher initial status also decreased in rehabilitation adherence (Mslope=-.50, p<.01) but no decline was found in the class with lower initial status of rehabilitation adherence (Mslope=.04, p>.05). Conclusions and implications: The current study supported that “ACLWell” was effective in maintaining patients’ self-determined motivation and rehabilitation adherence for patients who had lower initial status of rehabilitation adherence.

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International Journal of Behavioral Medicine

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28

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Suppl 1

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Psychology

Social Sciences

Psychology, Clinical

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Lee, ASY; Yung, PSH; Ong, MTY; Lonsdale, C; Hagger, MS; Chan, DKC, Using mhealth technology to maintain patients' post-surgery rehabilitation adherence: A test of self-determination theory, International Journal of Behavioral Medicine, 2021, 28 (Suppl 1), pp. S158-S159