Summary
The present study was undertaken to investigate the respiratory system as an exercise limiting factor. Breathing and cycle endurance (i.e. the time until exhaustion at a given performance level) as well as physical working capacity 170 (i.e. the exercise intensity corresponding to a heart rate of 170 beats -min−1 on a cycle ergometer) were determined in four healthy sedentary subjects. Subsequently, the subjects trained their respiratory system for 4 weeks by breathing daily about 901 · min−1 for 30 min. Otherwise they continued their sedentary lifestyle. Immediately after the respiratory training and 18 months later, all performance tests carried out at the beginning of the study were repeated. The respiratory training increased breathing endurance from 4.2 (SD 1.9) min to 15.3 (SD 3.8) min. Cycle endurance was improved from 26.8 (SD 5.9) min to 40.2 (SD 9.2) min whereas physical working capacity 170 remained essentially the same. During the endurance cycling test in the respiratory untrained state, the subjects continuously increased their ventilation up to hyperventilation [ventilation at exhaustion = 96.9 (SD 23.6) 1 · min−1] while after the respiratory training they reached a respiratory steady-state without hyperventilation [ventilation at exhaustion = 63.3 (SD 14.5) 1 · min−1]. The absence of this marked hyperventilation was the cause of the impressive increase of cycle endurance in normal sedentary subjects after respiratory training. The effects gained by the respiratory training were completely lost after 18 months. Our results indicated that the respiratory system was an exercise limiting factor during an endurance test in normal sedentary subjects.
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References
Akabas SR, Bazzy AR, di Mauro S, Haddad GG (1989) Metabolic functional adaptation of the diaphragm to training with resistive loads. J Appl Physiol 66: 529–535
Anholm JD, Stray-Gundersen J, Ramanathan M, Johnson RL Jr (1989) Sustained maximal ventilation after endurance exercise in athletes. J Appl Physiol 67: 1759–1763
Beaver WL, Wasserman K, Whipp BJ (1973) On-line computer analysis and breath-by-breath graphical display of exercise function tests. J Appl Physiol 34: 128–132
Belman MJ, Gaesser GA (1988) Ventilatory muscle training in the elderly. J Appl Physiol 64: 899–905
Boutellier U, Farhi LE (1986) Influence of breathing frequency and tidal volume on cardiac output. Respir Physiol 66: 123–133
Boutellier U, Gomez U, Koller EA (1982) Verbessertes Atmungsanalysesystem: Anwendung am Beispiel der Sauerstoffaufnahmekinetik (\(\dot VO_2 \)). Swiss Med 4: 31–33
Boutellier U, Kündig T, Gomez U, Pietsch P, Koller EA (1987) Respiratory phase detection and delay determination for breath-by-breath analysis. J Appl Physiol 62: 837–843
Bradley ME, Leith DE (1978) Ventilatory muscle training and the oxygen cost of sustained hyperpnea. J Appl Physiol 45: 885–892
Bühlmann A (1965) Klinische Funktionsprüfung des Herzens. Schweiz Med Wochenschr 95: 1327–1332
Bye PTP, Farkas GA, Roussos C (1983) Respiratory factors limiting exercise. Ann Rev Physiol 45: 439–451
Davies SF, Iber C, Keene SA, McArthur CD, Path MJ (1986) Effect of respiratory alkalosis during exercise on blood lactate. J Appl Physiol 61: 948–952
Demedts M, Anthonisen NR (1973) Effects of increased external airway resistance during steady-state exercise. J Appl Physiol 35: 361–366
Dempsey JA (1986) Is the lung built for exercise? Med Sci Sports Exerc 18: 143–155
Dempsey JA, Hanson PG, Henderson KS (1984) Exercise-induced arterial hypoxaemia in healthy human subjects at sea level. J Physiol (Lond) 355: 161–175
di Prampero PE, Ferretti G (1990) Factors limiting maximal oxygen consumption in humans. Respir Physiol 80: 113–128
Ferretti G, Boutellier U, Pendergast DR, Moia C, Minetti AE, Howald H, di Prampero PE (1990) Oxygen transport system before and after exposure to chronic hypoxia. Int J Sports Med 11 [Suppl 1]: S15-S20
Freedman S, Cooke NT, Moxham J (1983) Production of lactic acid by respiratory muscles. Thorax 38: 50–54
Grassino A, Macklem PT (1984) Respiratory muscle fatigue and ventilatory failure. Ann Rev Med 35: 625–647
Hagberg JM, King DS, Rogers MA, Montain SJ, Jilka SM, Kohrt WM, Heller SL (1990) Exercise and recovery ventilatory and\(\dot VO_2 \) responses of patients with McArdle's disease. J Appl Physiol 68: 1393–1398
Huckabee WE (1958) Relationships of pyruvate and lactate during anaerobic metabolism. I. Effects of infusion of pyruvate or glucose and of hyperventilation. J Clin Invest 37: 244–254
Jardim J, Farkas G, Prefaut C, Thomas D, Macklem PT, Roussos C (1981) The failing inspiratory muscles under normoxic and hypoxic conditions. Am Rev Respir Dis 124: 274–279
Jeyaranjan R, Goode R, Duffin J (1989) Role of lactic acidosis in the ventilatory response to heavy exercise. Respiration 55: 202–209
Keens TG, Krastins IRB, Wannamaker EM, Levison H, Crozier DN, Bryan AC (1977) Ventilatory muscle endurance training in normal subjects and patients with cystic fibrosis. Am Rev Respir Dis 116: 853–860
Leith DE, Bradley M (1976) Ventilatory muscle strength and endurance training. J Appl Physiol 41: 508–516
Lieberman DA, Faulkner JA, Craig AB Jr, Maxwell LC (1973) Performance and histochemical composition of guinea pig and human diaphragm. J Appl Physiol 34: 233–237
Martin B, Heintzelman M, Chen H-I (1982) Exercise performance after ventilatory work. J Appl Physiol 52: 1581–1585
Martin BJ, Stager JM (1981) Ventilatory endurance in athletes and non-athletes. Med Sci Sport Exerc 13: 21–26
Morgan DW, Kohrt WM, Bates BJ, Skinner JS (1987) Effects of respiratory muscle endurance training on ventilatory and endurance performance of moderately trained cyclists. Int J Sports Med 8: 88–93
Ouellet Y, Poh SC, Becklake MR (1969) Circulatory factors limiting maximal aerobic exercise capacity. J Appl Physiol 27: 874–880
Sjöstrand T (1960) Functional capacity and exercise tolerance in patients with impaired cardiovascular function. In: Gordon BL, Kory RC (eds), Clinical cardiopulmonary physiology. Grune and Stratton, New York, pp 201–219
Tarasiuk A, Scharf SM, Miller MJ (1991) Effect of chronic resistive loading on inspiratory muscles in rats. J Appl Physiol 70: 216–222
Tenney SM, Reese RE (1968) The ability to sustain great breathing efforts. Respir Physiol 5: 187–201
Wagner PD (1987) The lungs during exercise. News Physiol Sci 2: 6–10
Williams JH, Powers SK, Stuart MK (1986) Hemoglobin desaturation in highly trained athletes during heavy exercise. Med Sci Sports Exerc 18: 168–173
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Boutellier, U., Piwko, P. The respiratory system as an exercise limiting factor in normal sedentary subjects. Europ. J. Appl. Physiol. 64, 145–152 (1992). https://doi.org/10.1007/BF00717952
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DOI: https://doi.org/10.1007/BF00717952