Functional exercise capacity in maximal and submaximal activities of individuals with polio sequelae.

de Lira CAB; Minozzo FC; Costa TG; de Oliveira VN; Costa GCT; Oliveira ASB; Quadros AAJ; Vancini RL; Sousa BS;
da Silva AC; Andrade MS;

European journal of applied physiology [Eur J Appl Physiol] 2022 Nov 19.
Date of Electronic Publication: 2022 Nov 19.

Purpose: Poliomyelitis is an infectious disease that can cause total paralysis. Furthermore, poliomyelitis survivors may develop new signs and symptoms, including muscular weakness and fatigue, years after the acute phase of the disease, i.e., post-polio syndrome (PPS). Thus, the objective was to compare the functional exercise capacity during maximal and submaximal exercises among individuals with polio sequelae (without PPS diagnosis), PPS, and a control group.
Methods: Thirty individuals participated in three groups: a control group (CG, n = 10); a group of individuals with polio sequelae but without PPS diagnosis (PG, n = 10); and a PPS group (PPSG, n = 10). All participants underwent (i) a cardiopulmonary exercise test to determine their maximal oxygen uptake ([Formula: see text]) and (ii) a series of functional field tests (i.e., walking test, sit-to-stand test, and stair climbing test).
Results: [Formula: see text]O 2 max was 30% lower in PPSG than in CG and PG. Regarding functional field tests, walking and stair climbing test performances were significantly different among all groups. The PPSG sit-to-stand performance was lower than CG.
Conclusion: The sequelae of paralytic poliomyelitis impair functional exercise capacity obtained from maximal and submaximal tests, especially in patients with PPS. Furthermore, submaximal variables appear to be more negatively impacted than maximal variables.