Highlights Neck circumference can be used in clinical evaluation for health monitoring. The prevalence of increased neck circumference is high and is associated with relative muscular strength in men and level of moderate and vigorous physical activity and relative muscular strength in women. Neck circumference is an important predictor of low moderate and vigorous physical activity and relative muscular strength in men, and the results are more pronounced in adult and older adult women. We suggest implementing exercise programs to […]