German club Bochum have banned supporters from jumping up and down in unison in part of their stadium because the tribune movement makes some spectators feel unwell.
Engineers flag 'trampoline effect'
Engineers investigated the structure as part of a Ruhrstadion upgrade plan and cleared its load-carrying capacity. Their report, however, also highlighted that synchronised jumping during matches created what they called a "trampoline effect" in the tribune that could trigger discomfort among those who are not used to it.
The 2. Bundesliga club said on Wednesday that, from 11 October, any synchronised movement in the East Stand's standing area would be banned. The stadium has a capacity of about 26,000.
Club statement on the ban
"VfL regrets the unavoidable measures but is relieved that the East Stand can be used at full capacity, provided the ban on jumping is observed," a statement read.
"Fortunately, the renovation of the East Stand is already part of the modernisation project, meaning a lengthy planning process can be avoided and the ban on jumping lifted upon completion of the scheduled renovation work in 2028."