Abstract:
:In assessing the effectiveness of lower-limb and upper-limb nonspecific physical training, we have considered 3 objectives in this study: (1) determination of clinical and functional actual state in patients with chronic airway obstruction (CAO), before and after training; (2) determination of the tests, level of work, and duration of the session training as well as how to increase the training load throughout the training program; and (3) the "particular" upper-limb exercise training in patients with CAO. Many personal factors such as psychologic (personality, degree of patient motivation), alcohol and smoking habits, physical activity, malnutrition, as well as routine tests, at rest and maximal exercise, including the control of metabolic acidosis (lactate) and arterial blood gases (or at least of SaO2), should be considered. Exercise training has the potential to improve exercise tolerance in those who develop metabolic acidosis. The pattern of lactates during exercise represents a good criterion on the selection of patient's training. Two ergospirometric strategies, at high intensity exercise, established from the anaerobic threshold (AT) are described: (a) the above AT 45 min constant exercise (high work rate), at 60% of the difference between AT and maximum VO2 or 80% of the maximal tolerated power (MTP), and (b) the "45 min square-wave endurance exercise test" (SWEET), simulating an interval training session, established from the MTP and the AT. To the SWEET's base (% MTP from AT or aerobic training), a peak of 60 s at MTP (anaerobic training) is added every 5 min. While those 2 protocols, after 6 to 8 weeks of training, lactate and ventilation were lower for identical work rate. In addition, endurance (time in "a" and total physical work in "b") increased up to 60%. Further, maximal exercise ventilation and maximum VO2 increased after SWEET training. Roughly every 7 training sessions, a 10% to 15% reduction in heart rate (HR), during the training program, allows the patient to increase the work rate of the sessions. Evaluation of training the upper limb in patients with CAO requires measurements of MTP and maximum VO2. With the upper limb (wheelchair ergometer), Wmax, maximum VO2, and HR represent 30%, 65%, and 95%, respectively, of the lower limb (ergometer). Further, some expiratory and inspiratory accessory muscles show electromyographic fatigue at the MTP upper-limb level. This may contribute to the rationale for training respiratory muscles.(ABSTRACT TRUNCATED AT 400 WORDS)
journal_name
Chestjournal_title
Chestauthors
Gimenez M,Predine E,Marchand M,Servera E,Ponz JL,Polu JMdoi
10.1378/chest.101.5_supplement.279ssubject
Has Abstractpub_date
1992-05-01 00:00:00pages
279S-288Sissue
5 Suppleissn
0012-3692issn
1931-3543pii
S0012-3692(16)32916-6journal_volume
101pub_type
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