The aim of this trial is to develop and evaluate a web app to teach patients about how to correctly perform a tailored program of shoulder exercises. The exercise program will be evidence based, and there will be two groups in the study, both exercising. The follow up will be of 6 months.
The web app will consist of 3D multimedia animations (video and audio) which the patient will be able to access from any device with internet connection (cell phone included). The trial will include patients with shoulder pain because of rotator cuff tendinopathy. The investigators will carry on a pilot study with 100 patients randomly distributed into two groups, with 6 months follow up. Both groups will perform the same treatment, but the control group won´t use the exercise app. There will be four dependent variables: correct exercise performance, compliance degree, satisfaction with the treatment and expectations to improve with treatment. As secondary dependent variables will be analyzed pain (at rest, with movement and at night), functional disability (SPADI questionnaire), and patient´s assessment of app video characteristics (usability, utility and satisfaction) and co-interventions.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
100
Exercise on an evidence based program for shoulder pain with web app animations to improve performance and adherence
Exercise on an evidence based program for shoulder pain
Correctness in exercise performance
25% of patients enrolled will be checked by video recording of 3 exercise performance, and the videos will be graded by two blinded assessors with a 6 points scale, 4 evaluating motor memory and 2 evaluating declaratory memory. Every exercise recording will be form 0 to 6, so the total score will range from 0 to 18.
Time frame: 6 weeks
Compliance degree
It will be measured by a simple monthly diary where the patient will have to register everyday if has done or not the exercises and the degree of pain every week. Total score will correspond to the percentage of days exercising over the total expected.
Time frame: 6 months
Treatment satisfaction: numerical visual scale
This outcome will be measured with a numerical visual scale of 11 points, where on the right will be "10" as completely satisfied, and on the left "0" absolutely unsatisfied.
Time frame: 6 months
Expectancy of improvement with treatment
This outcome will be measured using a modified question from the "Credibility/expectancy Questionnaire", that will be pointed on a numerical visual scale of 11 points having on the right "10" as complete recovery, and on the left "0" as "no improvement". The question that will be made is "how much improvement do you think you will reach in your limitations because of the shoulder pain?"
Time frame: 2 weeks
Pain intensity: numerical scale
Measured with a numerical scale with 11 points. 0 means "without pain" and 10 "worst pain". A 2 points change will be the minimum relevant clinical change.
Time frame: 6 months
Functional limitation
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Measured with the SPADI questionnaire adapted to spanish. Consists of 13 items, 5 evaluating pain and 8 disability. The total score ranges between 0 and 130, and the final score is a percentage. Higher scores mean a higher pain and disability degree. The minimal clinical change is 8 points. A 20 points change is needed for the patient to perceive an important change.
Time frame: 6 months
Evaluation of the app and videos
A 12 points questionnaire, referred to usability, perceived usefulness and satisfaction. It´s a Likert type scale to express agreement on each question over 5 points, from complete disagreement to complete agreement. The total score is over 0- 100.
Time frame: 3 months