Cognitions determine questionnaire answering behaviour, so if 'disability' is measured with a questionnaire, it can be the same underlying factor affecting both scores - it is a meaningless association.
Yes and no... If this is going to be used to determine specificity of diagnosis for example (when used in scientific studies investigating the illness), comparisons with other fatiguing neurological conditions for example is necessary, otherwise this may be a non-specific association of...
Exactly. Studies like these cannot generalise anything about the underlying characteristics of patients, rather they reflect the referral and diagnostic biases in practise.
Not necessarily, she has involved in drug trials and systematic reviews for a wide range of conditions.
For her reviews of CBT, the studies have been rated as low/very low quality. For "Psychosocial interventions for the prevention of relapse in bipolar disorder", the conclusion was...
Edwards' statement is not consistent with current understanding of effort perception and is inconsistent with the relationship between effort perception and performance at the ventilatory thresholds in more recent 2 day CPET studies...
The equivocal association of deconditioning and performance...
Mostly unrelated to the study. This is one of the key reasons why control groups are used...
Politely, I'd say the difference in reported adverse effects is certainly in part due to methodological differences.
Most data actually shows fewer autoimmune adverse events for young childhood vaccines versus adults, so it may actually be beneficial to give at younger age vs older age.
The same goes for combination vaccines - less actual injections lower the risk. People who suggest that the combination...
I think that is the most likely scenario - selection bias... Chronic fatigue is a common long term consequence of certain autoimmune diseases, even once the primary symptoms are attenuated/improve.
POTS is about blood flow based on body orientation. When climbing stairs, the body is not really changing in orientation besides maybe a bit of lean. It is the legs that are doing all the work moving the body against gravity, hence the major difference is simply the metabolic demands of the...
The main issue with inclines is simply that it takes substantially more power to climb than walking on a flat plane. Otherwise there is nothing particularly special.
A graded CPET on a treadmill can simulate specific gradients by requiring a specific amount of power.
I haven't looked into it in any depth, he believes exercise intolerance in POTS patients is due to pre-load failure.
But I don't see why the central veins would fail to constrict with the peripheral veins also failing to dilate at the same time?
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