An ABC presenter has lost her bid for workers' compensation after she broke her hip while jogging near her home in Sydney's inner west two years ago.

Catalyst host Maryanne Demasi claimed she was entitled to be compensated by federal workplace insurer Comcare because she was working from home on the day she was injured.

But the insurer denied liability, arguing that Dr Demasi's definition of "place of work" was too broad and that taxpayers should not be liable for a sporting injury.

Comcare has paid-out in the past to public servants injured in lunch breaks or even jogging to and from work, but has cracked down hard in recent years on such claims.