“…Several authors have investigated the effects of core muscle training programs on a variety of characteristics of physical fitness. Most studies were related to muscle strength and power, such as leg muscle strength, abdominal muscle strength, and balance in male students of physical education and recreation health ( Firdauz and Setijono, 2018 ), core muscle strength and endurance in school’s football team players ( Boyaci and Tutar, 2018 ), isometric leg and back muscle strength, abdominal muscle strength, back extensor endurance, dynamic balance, flexibility of the lower back and hamstring muscles, thoracic and lumbar spine ROM and lateral bending in male university students ( Yaprak, 2018 ), balance, agility and explosive force in runners ( Dinç and Ergin, 2019 ), neuromuscular control of the trunk and lower limbs during jump landing and single-legged squatting in female collegiate basketball players ( Sasaki et al, 2019 ), core muscle strength in young male cyclists ( Chok, 2020 ), core muscle strength in professional football players ( Etxaleku et al, 2020 ), core muscle strength in junior swimmers ( Marani et al, 2020 ), endurance, strength and balance in female students with trunk defects ( Mohebi Rad and Norasteh, 2020 ), core muscle performance in rhythmic gymnasts ( Esteban-García et al, 2021 ), and neuromuscular control and strength of the trunk muscles in pediatric soccer players ( Kumahara et al, 2021 ). Other studies were related to balance, endurance and flexibility, for instance endurance, strength, flexibility and balance in sedentary women ( Sekendiz et al, 2010 ), dynamic balance, spinal mobility, functional mobility and trunk muscle strength in older adults ( Granacher.…”