Despite Van der Breggen's crash, she put in a great performance on this difficult XCO course, and with fourth place on the day managed to hold onto her overall lead and claim victory in the Afxentia Stage Race.
The top-end power of the XCO race was always going to be a test for the Czech, for whom illness has set back his training over the first part of the year.
According to a study by a German university, using the XCO tubes can result in a 25 per cent increase in energy use and a 33 per cent higher calorie burn.
The XCO, which was invented by Dutch physiotherapists, is also being hailed as a fitness saviour for time-poor exercisers.
For celebrity personal trainer Elise Lindsay, the XCO offers the ideal training aid for her clients.
Lindsay, who was behind Coleen McLoughlin's pre-wedding fitness regime, said: "I find the XCO delivers quick, effective results, which is important for many of my clients.
The next step is to walk while holding the XCO tubes in the hands.
The XCO effect gets to work straight away, and new users shouldn't be surprised if they have tired upper body muscles the day after a workout.
Maggie Scott, who has been using her XCO tubes for two months, has found the greatest benefits in her biceps, triceps and abs.