1
general::
Phrase(s): in condition [and] in(to) shape
in good health; strong and healthy; fit. • Bob exercises frequently, so he’s in condition. • If I were in shape, I could run faster and farther. • I’m really overweight. I have to try to get into shape.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Also, in good condition or shape;in shape. Physically fit; also, in a state of readiness. For example, I've got to get in condition before the next road race, or This project's in good shape now, or Is this report in shape to show to the president? The first expression dates from the late 1700s; the use of shape for "a state of health or repair" dates from the mid-1800s. The antonyms of these expressions, out of condition and out of shape, date from the mid-1800s. For example, Their stock was out of condition and not suitable for selling, or I'm so out of shape that I can barely run a mile.
American Heritage Idioms