The chest press is a staple upper body exercise prominently used in strengthening and toning the chest muscles. Primarily targeting the pectoralis major, the workout also engages the anterior deltoids (front of the shoulders) and the triceps (back of arms), fostering a balanced and robust upper body physique.

Twist trainers are effective tools for developing core strength and muscle endurance. They primarily target the obliques (sides of your abdomen), abdominals (belly muscles), and lower back muscles while also engaging muscles in your hips to some extent.