Table 3.

Definitions of functional fitness.

References	Definition of functional fitness
Thompson (2021) and Tibana et al. (2019)	A trend toward using strength training to improve balance, coordination, muscular strength, and endurance to improve activities of daily living typically for older adults and in clinical populations.
Tibana et al. (2019)	A relatively new form of exercise (also known as HIFT; extreme conditioning programs) that is currently being marketed to a wide range of active (athletes, military) and inactive populations. The competitive functional fitness (e.g., CrossFit®) often consists of a variety of training methods, such as weightlifting/powerlifting, repeated gym bodyweight exercises, cardiovascular exercises, sprints, and flexibility mixed to achieve a high global performance.
Peterson (2017)	Functional fitness is a by-product of the synergistic integration of the various components of fitness (physical and neuromuscular) and the muscle groups and joints involved in a movement activity or training effort.

ADLs, activities of daily living; HIFT, high-intensity functional training; HIIT, high-intensity interval training.