You will be shown the abstract of a medical clinical trial report. Your task is to extract all the findings from this report into a JSON array. Each finding should contain the following five elements:

- Intervention: The medical intervention being tested. This should be a text span copied from the input passage.
- Comparator: The baseline against which the intervention is being evaluated. This should be a text span copied from the input passage. If no comparator is reported, set to `null`.
- Outcome: The medical outcome whose effect is being measured. This should be a text span copied from the input passage.
- Effect: The effect of the intervention on the outcome, relative to the comparator. The effect should be one of the following three values: ("significantly increased", "significantly decreased", "no significant difference").
- Evidence: The evidence for the effect. This should be a text span copied from the input passage.

Please format your output as a JSON array. Each entry in the output should be an array containing the 5 elements listed above, in the following order: [<intervention>, <comparator>, <outcome>, <effect>, <evidence>].

For example, an output with two findings might read:
```
[["aspirin", "placebo", "headache severity", "significantly decreased", "Mean headache severity was significantly decreased in the aspirin group compared to the placebo group (p < 0.05)."], ["aspirin", "placebo", "weight loss", "no significant difference", "We did not observe any difference in weight loss between the group given aspirin relative to the control group"]]
```

There are 6 finding(s) in the abstract below. Please extract them. Output only the JSON array with these 6 findings. Do not include any additional text.

Abstract:
ABSTRACT: Abstract <p> Introduction: Cardiac rehabilitation is a way of improving the quality life of heart failure patients.  <p>  Aim: Determining the effect of physical activity on the quality of life of patients with heart failure.  <p>  Methods: This study was conducted on 34 patients affected by heart failure with an ejection fraction of less than 40%. The patients followed both psychological and nutritional consultations in the beginning of the program. The patients participated in 24-32 sessions of physical activity three times a week, each time lasting 1-1.5 h. Each session consisted of 20 min of warming up, 20-40 min of aerobic exercises, 5 min of cooling down, and 20 min of relaxation. Physician's visit, exercise test, echocardiography, fat and blood sugar profile tests were conducted for all patients before and after the rehabilitation program. The Life Quality Form SF-36 was filled out for them and the data were analyzed using the SPSS.  <p>  Results: Our findings showed that there was a statistically significant increase in the mean score of the patients' life quality after rehabilitation. Also, the comparison of the scores of the eight aspects of patients' life quality before and after rehabilitation revealed that life quality improved in the following directions: physical functioning, limitation of physical health, limitation of psychological health, energy, social functioning, and physical pain. All differences were statistically significant yet, the difference regarding the aspects of psychological health and general well-being were not significant.  <p>  Conclusion: Cardiac rehabilitation is effective on improving the life quality of cardiac failure patients. 

Findings:
[["after rehabilitation program", "before rehabilitation program", "physical pain after rehabilitation", "significantly decreased", "Our findings showed that there was a statistically significant increase in the mean score of the patients\u0027 life quality after rehabilitation. Also, the comparison of the scores of the eight aspects of patients\u0027 life quality before and after rehabilitation revealed that life quality improved in the following directions: physical functioning, limitation of physical health, limitation of psychological health, energy, social functioning, and physical pain"], ["after rehabilitation program", "before rehabilitation program", "improvement in the quality life of heart failure patients", "significantly increased", "Our findings showed that there was a statistically significant increase in the mean score of the patients\u0027 life quality after rehabilitation. Also, the comparison of the scores of the eight aspects of patients\u0027 life quality before and after rehabilitation revealed that life quality improved in the following directions: physical functioning, limitation of physical health, limitation of psychological health, energy, social functioning, and physical pain. All differences were statistically significant yet, the difference regarding the aspects of psychological health and general well-being were not significant."], ["after rehabilitation program", "before rehabilitation program", "social functioning", "significantly increased", "Also, the comparison of the scores of the eight aspects of patients\u0027 life quality before and after rehabilitation revealed that life quality improved in the following directions: physical functioning, limitation of physical health, limitation of psychological health, energy, social functioning, and physical pain. All differences were statistically significant yet, the difference regarding the aspects of psychological health and general well-being were not significant."], ["after rehabilitation program", "before rehabilitation program", "limitation of physical health", "significantly increased", "Also, the comparison of the scores of the eight aspects of patients\u0027 life quality before and after rehabilitation revealed that life quality improved in the following directions: physical functioning, limitation of physical health, limitation of psychological health, energy, social functioning, and physical pain. All differences were statistically significant"], ["after rehabilitation program", "before rehabilitation program", "physical performance or functioning", "significantly increased", "the comparison of the scores of the eight aspects of patients\u0027 life quality before and after rehabilitation revealed that life quality improved in the following directions: physical functioning, limitation of physical health, limitation of psychological health, energy, social functioning, and physical pain. All differences were statistically significant"], ["after rehabilitation program", "before rehabilitation program", "energy", "significantly increased", "Also, the comparison of the scores of the eight aspects of patients\u0027 life quality before and after rehabilitation revealed that life quality improved in the following directions: physical functioning, limitation of physical health, limitation of psychological health, energy, social functioning, and physical pain. All differences were statistically significant"]]