Adherence
Standard, unvalidated diet quality (HEI-C) and fitness measures fail to correlate with clinical metabolic syndrome reversal, whereas factor-analytically derived latent models of these constructs demonstrate excellent measurement equivalence and validity.
If you are tracking diet or fitness progress to manage metabolic health, standard off-the-shelf scores (like basic HEI-C) may not accurately reflect your clinical improvements. To truly link your lifestyle changes to health outcomes, use validated, multi-component assessments that account for measurement error, rather than relying on single, unvalidated metrics.
The model fit for the original HEI-C was poor and could account for the lack of associations in the primary study. A reduced HEI-C and a 4-item fitness model demonstrated excellent model fit and measurement equivalence across time, sex, and diabetes status.
Why this rating
Robust structural equation modeling (SEM) with large sample (N=293) and longitudinal data, though it is a secondary analysis of a feasibility study.
Source
Evaluation of Latent Models Assessing Physical Fitness and the Healthy Eating Index in Community Studies: Time-, Sex-, and Diabetes-Status Invariance
Scott B. Maitland et al. · Nutrients · 2021
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