What does physically fit mean?
To some degree. On the plane, you may be seated with several others which may require you to keep your knees bent for the ride to altitude. When you land, you will be required to lift your legs up so that your instructor can land the canopy for you. Due to the nature of skydiving, it is recommended that if you have a serious heart condition, epillepsy, or if you are pregnant, that you refrain from this activity.