Adding the clinical framing, because it changes how the question reads. Worth answering the question that was asked rather than the one behind it. The narrow version usually has an answer; the broad version usually does not, and answering the broad one is how a thread stops being useful.
Dr.SportsMedIN said:Worth answering the question that was asked rather than the one behind it.
This matches mine closely enough to be worth saying so out loud. I had assumed I was the exception until I read this.
Dr.SportsMedIN said:Worth answering the question that was asked rather than the one behind it.
Adding the part of the answer the thread has not reached. The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either. Those three things can all be true at once, and most arguments here are two people holding different parts of that.
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Shop Reference StandardsAdding the numbers, since they settle part of this. If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way. Most of the apparent contradictions in these threads dissolve at that step.
One thing that is still open after Dr.SportsMedIN’s answer:
What would you measure differently if you were starting again?