Lat pulldowns are highly beneficial for developing strength and definition in the upper body. They chiefly target the latissimus dorsi (large muscles in the back) but also engage the biceps, traps, and shoulders to a lesser degree.

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.