[Tolerance test to an inspiratory resistive load and resistive training of respiratory muscles. Preliminary critical study in kyphoscoliotic patients].
Is increased tolerance to an additional inspiratory load after resistive training always due to respiratory muscle endurance? To answer this question, 5 kyphoscoliotic subjects were subjected to ventilation through a Y-shaped tube 3.2 cm in diameter during 10 minutes three times a day for 3 months. The subjects were divided into 3 groups. Group 1 (n = 3) trained with a non-linear resistance placed in the inspiratory branch of the tube during the first and third months and without additional load during the second month. Group 2 (n = 2) trained without inspiratory resistance during the first and third months and with an additional load during the second month. The load selected for the initial tolerance test (R1) was an inspiratory orifice with a diameter 0.5 mm wider than that of the orifice not tolerated during 3 min (R2). In each subject, ventilatory mode and time of tolerance on R1 were determined. This time was 10.8 +/- 6.8 min for the whole group. The tolerance test was repeated after each month of resistive or placebo training on R1 and R2. By grouping together the results of tolerance tests at 2 months after placebo training (4 measurements) and after resistive training (5 measurements), we found that the gain in endurance was similar without concomitant changes in volumes, air flows, VO2 max and time of endurance at 70% of VO2 max.(ABSTRACT TRUNCATED AT 250 WORDS)
Vandevenne
A
A
Service de Pneumologie, Hôpital de Hautepierre, CHRU de Strasbourg.
Ducolone
A
A
D000222:Adaptation, Physiological; D000368:Aged; D000403:Airway Resistance; D001945:Breathing Exercises; D005260:Female; D006801:Humans; D007738:Kyphosis / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D012129:Respiratory Function Tests; D012132:Respiratory Muscles / Q000503:physiopathology*; D012600:Scoliosis / Q000503:physiopathology*; D013997:Time Factors
Test de tolérance à une charge résistive inspiratoire et entraînement résistif des muscles respiratoires. Etude critique préliminaire chez 5 sujets cyphoscoliotiques.