Exploration of Possible Reasons for the Discrepancy Between Expectation and Indication of Subjective Perceived Exertions

Study Overview
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Brief Summary
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The 6-minute walk test is a test of physical performance in physiotherapy with lungs and heart patients (Pollentier 2010). However, only 8 and 11% of patients in everyday test situations report a score of 7 or higher on a scale of 0-10 for effort (Jehn 2009). This study is intended to explore, based on grounded theory, why the majority of patients do not assess themselves according to the almost maximum performance.

Official Title
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Exploration of Possible Reasons for the Discrepancy Between Expectation and Indication of Subjective Perceived Exertions of Patients Over 55 Years of Age With Coronary Heart Disease in 6-min Walking Test in Cardiorespiratory Physiotherapy

Conditions
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Coronary Disease, Exercise Test, Physical Exertion, Cardiac Rehabilitation, Physical Therapy

Intervention / Treatment
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* Other: Questionnaire, Interview
* Other: Focus Group


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients with coronary artery disease undergoing in-patient cardiovascular rehabilitation; over 55 years of age. Patients underwent a 6-minute walk test with assessment of the intensity of the exercise Exclusion Criteria: no understanding of the German language Patients would not be able to perform a 6-minute walk test, e. g. surgery on the large joints of the lower extremities, unstable heart disease or predominant neurological symptoms.

Ages Eligible for Study
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Minimum Age: 55 Years
Maximum Age: 90 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Patients over 55 Years with coronary heart disease<br>Questionnaire and semistructured Interview 45 -60 minutes | Other: Questionnaire, Interview<br>* During the stay, a study visit is arranged with the patient after the 6-minute walk test has been performed. This consists of filling out the questionnaire and an interview, which lasts about 45-60 minutes. This is carried out by the investigator on at least 5 subjects. After each interview, a list of influencing factors is kept. If new aspects continue to appear in the 5th interview, the interviews are continued (up to a maximum of the 10th subject). If no new aspects appear in the interviews from number 6 onwards, the interviews are discontinued and no further patients are recruited. The conversations are recorded with an audio recording.<br>|
| physical therapists working with patients with coronary heart disease<br>Focus group 60 -90 minutes | Other: Focus Group<br>* The focus group is carried out first in order to identify influencing variables that may be relevant for the interview (duration 60-90 minutes).<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| semi-structured interview about reasons, that could influence the rating of patients | Patients were asked in a semi-structured interview about other reasons, that could influence their rating. | during inpatient rehabilitation after the 1st six-minute-walking test within 3 weeks | 
| reasons, what might patients influence for ratings of patients given from physical therapist | physical therapists identify reasons in a focus group, that influence the patients. | with the beginning of the study within 4 weeks, before the patients' questionnaire and interview |