as you told in the comments, it's not, that the players body was moved, instead you moved the sprite alone ;-)
moving the player by the sensor event, you could use something like
playerBody.setLinearVelocity (float vX, float vY)
with the x value depending on your sensor, the y value should be something like your jump-speed imho
then you don't need to move the sprite anymore, since it will be moved with the bodies moving