Balance maintenance relies on a complex interplay between many different sensory modalities. Although
optimal multisensory processing is thought to decline with ageing, inefficient integration is particularly
associated with falls in older adults. We investigated whether improved balance control, following a
novel balance training intervention, was associated with more efficient multisensory integration in older
adults, particularly those who have fallen in the past. Specifically, 76 healthy and fall-prone older adults
were allocated to either a balance training programme conducted over 5 weeks or to a passive control
condition. Balance training involved a VR display in which the on-screen position of a target object
was controlled by shifts in postural balance on a Wii balance board. Susceptibility to the sound-induced
flash illusion, before and after the intervention (or control condition), was used as a measure of multisensory
function. Whilst balance and postural control improved for all participants assigned to the Intervention
group, improved functional balance was correlated with more efficient multisensory processing in
the fall-prone older adults only. Our findings add to growing evidence suggesting important links
between balance control and multisensory interactions in the ageing brain and have implications for
the development of interventions designed to reduce the risk of falls.