Aerobic exercise capacity and pulmonary function in athletes with and without type 1 diabetes.
OBJECTIVE
To compare the aerobic exercise capacity and pulmonary function between athletes with and without type 1 diabetes.


METHODS
Fifty-one adult age-matched individuals were assessed in random order to the maximum volume of O(2) consumption (Vo(2 peak max)) (ml/kg/min), anaerobic threshold (ml/kg/min), peak pulmonary ventilation (Ve), heart rate (beats per min), time to exhaustion (min), forced vital capacity (FEV) (%), forced expiratory volume in the first second (FEV1) (%), total lung capacity (TLC) (%), and lung diffusion capacity for carbon monoxide (DL(CO)) (%). Individuals were 27 with type 1 diabetes: 15 athletes (ADM) and 12 nonathletes (NADM); and 24 healthy individuals: 12 ADM and 12 NADM. Duration of diabetes was 14.6 ± 6.2 and 15.2 ± 6.7 years in ADM and NADM, respectively.


RESULTS
Vo(2 peak) (max) was higher in ADM than in NADM (P < 0.001). The anaerobic threshold was lower in subjects with type 1 diabetes than in control subjects (P < 0.001). FEV1 was lower in ADM than in other groups (NADM, athletes control, and nonathletes control, P < 0.001).


CONCLUSIONS
Aerobic capacity in subjects with type 1 diabetes with programmed exercise is similar to the capacity of normal athletes despite lower anaerobic threshold and FEV1.
Komatsu
William R
WR
Diabetes Center, Department of Medicine, Endocrinology Division, Federal University of São Paulo, São Paulo, Brazil. william.komatsu@unifesp.br
Barros Neto
Turibio L
TL
Chacra
Antonio R
AR
Dib
Sergio A
SA
D000328:Adult; D015308:Anaerobic Threshold / Q000502:physiology*; D056352:Athletes; D003922:Diabetes Mellitus, Type 1 / Q000503:physiopathology*; D017079:Exercise Tolerance / Q000502:physiology*; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology; D055815:Young Adult
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