Ab Crunch And Back Extension Machine JF01

Train your back and abs efficiently in one compact unit. The rotary flywheel mechanism offers full control over your starting position, and shifting between back extensions and ab crunches is effortless—just insert the quick-release pin. Ideal for targeted core development and saving both space and cost. Customize your setup with 8 adjustable footrest positions (31.4″ to 36.3″) for secure footing and improved muscle isolation. The seat height is also adjustable across 5 levels (20.8″ to 24.7″), making the machine suitable for users of different sizes. A well-trained core improves posture, reduces back pain, and enhances overall athletic performance. This machine bridges the gap between bodyweight exercises and weighted core training, helping you build functional strength and stability efficiently.