The Dynasty Fitness DDR038 Sissy Squat is a compact quad isolation trainer that anchors the lower body in a fixed supported position to allow controlled deep knee flexion through the sissy squat movement, delivering direct rectus femoris and vastus muscle activation that compound squats and leg presses distribute across multiple muscle groups. By locking the shins and calves against the leg rollers and anchoring the feet against the foot pad, the DDR038 removes hip, glute, and hamstring contributions from the movement and concentrates the entire loading demand on the quadriceps through the full squat arc. A five-position leg pad adjusts the shin roller for different user heights and leg proportions, a five-position foot pad adjusts squat depth and foot support level, and a PVC rubber base keeps the unit stable on any floor surface during both bodyweight and lightly loaded reps. Built from 1.97" × 3.94" commercial-grade rectangular steel at just 40.4" × 28.7" × 18.6" and 73 lbs, the DDR038 is built for commercial gyms, personal training studios, and home gym setups where dedicated quad isolation through the sissy squat pattern is a programming priority.

• Dedicated sissy squat trainer that anchors the shins, calves, and feet to isolate the quadriceps through deep knee flexion, training the rectus femoris and vastus muscles directly without hip, glute, or hamstring distribution of the load
• Five-position leg pad adjustment sets the shin roller position for different user heights and leg lengths so the knee anchor point is correct for each individual's proportions, keeping the squat mechanics precise across a diverse training population
• Five-position foot pad adjustment controls squat depth and foot support level, allowing beginners to limit range of motion during technique development and advanced users to maximise full-depth quad stretch for the greatest hypertrophy stimulus
• Compact 40.4" × 28.7" footprint at 73 lbs fits into corner stations, small commercial areas, or home gym spaces where dedicated quad isolation equipment would otherwise be impractical