Table 1 Search strategy

Web of Science

(“postur*” OR “postural control” OR “postural sway” OR “postural stability” OR "postural steadiness” OR balance OR equilibrium OR sway) AND (fatig* OR lassitude OR exhaustion) AND (“multiple sclerosis”)

PubMed

(“postural control“[Title/Abstract] OR “postural sway“[Title/Abstract] OR "postural stability“[Title/Abstract] OR “postural steadiness“[Title/Abstract] OR balance[Title/Abstract] OR equilibrium[Title/Abstract] OR sway[Title/Abstract]) AND (fatigue[Title/Abstract] OR lassitude[Title/Abstract] OR exhaustion[Title/Abstract]) AND (“multiple sclerosis“[Title/Abstract]) AND ((fft[Filter]) AND (humans[Filter]))

Scopus

TITLE-ABS-KEY(“postur*” OR “postural control” OR “postural sway” OR “postural stability” OR “postural steadiness” OR balance OR equilibrium OR sway) AND TITLE-ABS-KEY(fatig* OR lassitude OR exhaustion) AND TITLE-ABS-KEY(“multiple sclerosis”)