45-year-old woman comes to the physician because of a 3-month history of difficulty walking. Physical examination shows an erratic, reeling, imbalanced, and broad based gait. Attempted compensatory movements exaggerate her state of imbalance. A lesion or primary dysfunction in which of the following structures Is the most likely cause of the abnormal gait in this patient?   A) Anterior columns of spinal cord B) Anterior horn cells C) Basal ganglion D) Parietal lobes E) Posterior columns of spinal cord  F) Vermis

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Spheres of physical activity

The spheres of physical activity experience include aspects of everyday life where physical activity is important. In general, the spheres recognize various purposes of physical activity in different contexts. The spheres of physical activity provide a broad basis for assessing the significance and prevalence of physical activity. There are seven spheres of physical activity experience.