Describe Why You Should View Evidence on the Benefits of Exercise

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The Answer is Many studies, for instance, are epidemiological in nature and reveal correlation rather than causality. Correlation does not equal causation. Methodological limitations are also common among exercise studies. For example:
Many of these studies utilize unrepresentative samples, often relying on volunteers;
They lack randomization between treatment and control groups;
The studies are unblinded (do not restrict awareness of who is a treatment group member versus a control group member);
They employ inadequate measurement tools, especially a reliance on self-reports; and
Several studies report high dropout rates or do not include dropouts in the data analysis (this would be a more rigorous type of study called intention-to-treat analysis). Some of the exercise in these studies, therefore, may not be producing the results reported.

Describe Why You Should View Evidence on the Benefits of Exercise

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Describe Why You Should View Evidence on the Benefits of Exercise

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