calisthenic
/ˌkælɪsˈθɛnɪk/ or /ˌkælɪˈstɛnɪk/Definitions
1. adjective
relating to or characteristic of calisthenics; requiring or involving exercise without the use of equipment
“The calisthenic exercises she performed in her backyard were an excellent way to stay fit and healthy.”
2. noun
a person who practices calisthenics
“She is a skilled calisthenic and has been featured in several fitness magazines.”