Term
Dump (seat slope)
“Dump” (seat slope) means the back of the seat is lower than the front. It can help with stability and pelvic positioning — but too much can create discomfort, pressure risk, or transfer difficulty.
In simple terms
A little dump can make a user feel more stable and “seated” in the chair. It changes how the pelvis sits, which influences posture up the chain.
What it affects
- Pelvic position and trunk posture
- Feeling “stable” vs. feeling “perched”
- Pressure distribution and skin risk
- Transfer mechanics (some setups make transfers harder)
- Comfort over long sitting time
Common tradeoffs
- More dump: can increase stability, but may increase pressure, limit movement, or complicate transfers.
- Less dump: can feel easier for transfers and movement, but may feel less stable for some users.
The “right” amount depends on posture, comfort, and daily tasks — not a single universal number.