1. A strength training exercise that involves extending the back muscles by hyperextending the spine, typically performed on a specialized machine or bench
The athlete performed back extensions to strengthen her lower back muscles.
A atleta realizou extensões de costas para fortalecer os músculos da região lombar.
2. The movement or action of straightening or extending the back from a flexed position
Proper form during back extensions prevents injury and maximizes effectiveness.
A forma correta durante as extensões de costas previne lesões e maximiza a eficácia.