title: [Ventilatory response to upper limb exercise alter training in COPD].
abstract: There are scarce studies evaluating the modification of ventilatory response to upper limb exercise (ULE) post-training in COPD patients. A prospective, randomized, controlled study was performed comparing two groups: training lower limbs (LL), vs. LL plus upper limb training (UL), in relation to their pre and post-training ventilatory response to ULE. A total of 43 COPD patients were included; 84% male, 6 (14%) GOLD moderate stage (II), 15 (35%) severe stage (III), and 22 (51%) very severe (IV); 28 patients completed the study. After ULE, in UL group (N = 14) a training increased isotime VT (p < 0.0001) was observed, as well as an increase in the inspiratory capacity isotime percentage (IC, 8.8%, p = 0.001), in the Ti isotime (29.3%, p = 0.022) and in the Ti/Tot isotime (37.4%, p = 0.0004). Also, Te isotime was reduced (26%, p = 0.009) and IC isotime was increased (p = 0.01) after ULE. In LL group (N = 14), training increased VT/Ti isotime (66.86%, p = 0.0005) after ULE. Also, after ULE a decrease in Ti isotime (27.9%, p = 0.015) and in Ti/Tot isotime (22.74%, p = 0.00016) were observed. A moderate correlation was observed between Δ respiratory rate and ΔIC after ULE, only for post-training in UL group (r = -0.53 , p < 0.001). Comparing both groups in relation to their responses to ULE, only in the UL group was a reduction observed in Te isotime (p = 0.049) and VT/Ti (p = 0.0015), higher Ti isotime (p = 0.0019), Ti/tot isotime (p = 0.000076) and IC isotime (% predictive, p = 0.01). UL training modified ventilatory response to ULE and it also reduced air trapping in COPD patients.
authors: Unidad de Neumotisiología, Hospital de Agudos Dr. J. M. Ramos Mejía, Argentina. sivorimartin@yahoo.com
authors: Martín
authors: M
authors: Sívori
authors: Edgardo
authors: E
authors: Rhodius
mesh_terms: D000368:Aged; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D053580:Muscle Strength; D011446:Prospective Studies; D029424:Pulmonary Disease, Chronic Obstructive / Q000378:metabolism / Q000534:rehabilitation*; D012123:Pulmonary Ventilation / Q000502:physiology*; D012132:Respiratory Muscles / Q000502:physiology*; D012720:Severity of Illness Index; D034941:Upper Extremity / Q000502:physiology*