Sorry, Sean, could you explain what cross-sectional means and what longitudinal means in the context of research in weightlifting?

Yeah, so cross-sectional, we essentially was one data point and one point in time.

So we test a series of athletes at a particular time, and then we just ran some cross-sectional correlational analysis.

So we're just looking at relationships or associations between two measures.

It tells you about the magnitude or the strength of the relationship that exists between the two.

And that perhaps is your first point in trying to infer whether there may be some longitude nor association between the two.

So you might see if there's a relationship between, say, isometric mid-thipole peak force and clean and jerk performance that you would suspect that if you improve your mid-thipole peak force, that would translate into a better clean and jerk performance.

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