Take it easy and give your body time to learn new movement patterns. (bodybuilding.com)
The zero gravity environment allows dogs to increase range of motion in their joints by introducing new movement patterns. (nulo.com)
However, with calisthenics, to increase difficulty, you might have to learn the completely new movement pattern, which most of the time will feel way harder comparing to a 2.5 kg barbell increase. (onnit.com)