If you are new to an activity, it is better to:
AWork at a slower speed for more days a week
BWork at a lower intensity level for a longer period of time.
CWork at a higher intensity level for a shorter period of time.
DWork at a faster speed for fewer days a week.
AWork at a slower speed for more days a week
BWork at a lower intensity level for a longer period of time.
CWork at a higher intensity level for a shorter period of time.
DWork at a faster speed for fewer days a week.