What are the differences between back extensions and deadlifts in terms of their benefits and effectiveness for strengthening the lower back muscles?

Back extensions primarily target the erector spinae muscles in the lower back, while deadlifts engage multiple muscle groups including the lower back, glutes, and hamstrings. Deadlifts are generally more effective for overall lower back strength and muscle development due to the heavier loads that can be lifted. However, back extensions can be beneficial for isolating and targeting the lower back muscles specifically. Both exercises can be effective for strengthening the lower back, but deadlifts are often considered more comprehensive in terms of muscle engagement and overall strength development.