Postural Control After a Prolonged Treadmill Run at Individual Ventilatory and Anaerobic Threshold

The objective of the study was to verify whether young males’ balance was affected by 30min prolonged treadmill running (TR) at individual ventilatory (IVT) and anaerobic (IAT) thresholds in recovery time. The VO2max, IAT and IVT during an
incremental TR were determined. Mean displacement amplitude (Acp) and velocity (Vcp) of center of pressure were recorded before (pre) and after (0min post; 5min post; and 10min post)
prolonged TR at IAT and IVT, through posturographic trials
performed with eyes open (EO) and closed (EC). Significant
differences between IVT and IAT for Vcp, between EO and EC
for Acp and Vcp, were observed. The IAT induced higher destabilizing
effect when postural trials were performed with EC. The
IVT intensity produced also a destabilizing effect on postural control immediately after exercise. An impairment of postural control after prolonged treadmill running exercise at IVT and IAT intensity was showed. However, destabilizing effect on postural control disappeared within 10min after IAT intensity
and within 5min after IVT intensity.