«How ancient Greeks trained for war» (en anglès). BBC Reel, 02-04-2019. ISSN: 0458-3035 [Consulta: 15 gener 2021]. «"Calisthenics is based on how ancient Greek warriors trained. It uses bodyweight exercises to maximize strength, flexibility, equilibrium and neuromuscular coordination. The result is incredible muscle control and the ability to pose in gravity-defying positions."»
britannica.com
«calisthenics». Britannica. [Consulta: 4 abril 2020].
«How ancient Greeks trained for war» (en anglès). BBC Reel, 02-04-2019. ISSN: 0458-3035 [Consulta: 15 gener 2021]. «"Calisthenics is based on how ancient Greek warriors trained. It uses bodyweight exercises to maximize strength, flexibility, equilibrium and neuromuscular coordination. The result is incredible muscle control and the ability to pose in gravity-defying positions."»