> Baseline self-reported frequency of VPA was categorized into low VPA (<1 session/week), and high VPA (≥1 session/week). So yeah, this is a mere correlational

> Baseline self-reported frequency of VPA was categorized into low VPA (<1 session/week), and high VPA (≥1 session/week). So yeah, this is a mere correlational study, and a self-reported one at that. So technically, it could even be that people who think they exercise harder have better health outcomes.