It is well recorded in UK literature. The goal is to actively manage the broody goose which should be healthy before incubation. Encourage a daily break for food, water, exercise etc. This maintains health during this period.
Some are great incubators and instinctively know when to take breaks. Others take the behaviour to extremes to the extent they lose condition and succumb to ill health and starve. Its often very hard to stimulate these birds to regain appetite and they require sound care to recover. Another related example is incubating for an excessive period past the anticipated hatch date. If the clutch is wasted then break up the nest and concentrate on helping the goose regain health.
The instinct to breed is one of the most powerful behaviours in nature and in some cases it's to the detriment of the parent.
Thats my 2 cents worth and opinion, hope it helps.
Pete