Upper Limb Anaerobic Metabolism Capacity is Reduced in Mild and Moderate COPD Patients.

Limited information is available regarding the role of anaerobic metabolism capacity on GOLD 1 and 2 COPD patients during upper limb exercise. We aimed to compare the upper limb anaerobic power capacity, blood lactate concentration, cardiovascular and respiratory responses, in male COPD patients versus healthy subjects during the 30-s Wingate anaerobic test (WAnT). The rate of fatigue and time constant of the power output decay (, tau) were also calculated and a regression analysis model was built to assess the predictors of in these patients.

Critical power for the upper limb in patients with chronic obstructive pulmonary disease: A pilot study.

Purpose: To investigated the impact of the ventilatory constraints in the power-duration relationship for upper limbs exercise in patients with chronic obstructive pulmonary disease (COPD).

Methods: Eight patients with COPD and eight healthy subjects performed an arm incremental test on cycle ergometer and four constant workload tests (100%, 90%, 80% and 70% of peak workload). The power-duration (or critical power - CP) estimative was determined.

Upper limb exercises using varied workloads and their association with dynamic hyperinflation in patients with COPD.

Background: Increased ventilation during upper limb exercises (ULE) in patients with COPD is associated with dynamic hyperinflation (DH) and a decrease in inspiratory capacity (IC). The best level of ULE load training is still unknown. Our objective was to evaluate the dynamic hyperinflation development during ULE using three constant workloads.