Abstract
Both pulmonary function and respiratory muscle strength decrease following exercise in healthy humans. The alterations in respiratory muscle are not the same following exercise and voluntary isocapnic hyperpnea that simulates that exercise. Therefore, in this study we measured pulmonary and respiratory muscle function following maximal exercise or hyperpnea that simulated the ventilation seen during exercise. Forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV1.0), maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP) and handgrip strength were measured before and following voluntary hyperpnea in which minute ventilation and breathing frequency were controlled to levels identical to those obtained during the exercise test, and before and following a period of rest of equal duration to the exercise and hyperpnea tests. FVC decreased by 400 ml (7%, p < 0.05) immediately post-exercise. MIP decreased by 12 mmHg (15%, p < 0.005) following exercise and remained depressed for 15 minutes. Neither MEP nor FEV1.0 decreased following exercise, and none of the variables were altered following the control or hyperpnea bouts. These data indicate that pulmonary function and respiratory muscle strength are altered following exercise but not by similar bouts of hyperpnea without accompanying exercise. Therefore, exercise affects pulmonary function independent of the respiratory muscle work done.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 470-475 |
| Number of pages | 6 |
| Journal | International Journal of Sports Medicine |
| Volume | 20 |
| Issue number | 7 |
| DOIs | |
| State | Published - 1999 |
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Keywords
- Exercise
- Exertion
- Fatigue
- Respiratory muscles
- Spirometry
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation
Cite this
Alterations in pulmonary function following exercise are not caused by the work of breathing alone. / Coast, Richard J; Haverkamp, H. C.; Finkbone, C. M.; Anderson, K. L.; George, S. O.; Herb, R. A.
In: International Journal of Sports Medicine, Vol. 20, No. 7, 1999, p. 470-475.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Alterations in pulmonary function following exercise are not caused by the work of breathing alone
AU - Coast, Richard J
AU - Haverkamp, H. C.
AU - Finkbone, C. M.
AU - Anderson, K. L.
AU - George, S. O.
AU - Herb, R. A.
PY - 1999
Y1 - 1999
N2 - Both pulmonary function and respiratory muscle strength decrease following exercise in healthy humans. The alterations in respiratory muscle are not the same following exercise and voluntary isocapnic hyperpnea that simulates that exercise. Therefore, in this study we measured pulmonary and respiratory muscle function following maximal exercise or hyperpnea that simulated the ventilation seen during exercise. Forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV1.0), maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP) and handgrip strength were measured before and following voluntary hyperpnea in which minute ventilation and breathing frequency were controlled to levels identical to those obtained during the exercise test, and before and following a period of rest of equal duration to the exercise and hyperpnea tests. FVC decreased by 400 ml (7%, p < 0.05) immediately post-exercise. MIP decreased by 12 mmHg (15%, p < 0.005) following exercise and remained depressed for 15 minutes. Neither MEP nor FEV1.0 decreased following exercise, and none of the variables were altered following the control or hyperpnea bouts. These data indicate that pulmonary function and respiratory muscle strength are altered following exercise but not by similar bouts of hyperpnea without accompanying exercise. Therefore, exercise affects pulmonary function independent of the respiratory muscle work done.
AB - Both pulmonary function and respiratory muscle strength decrease following exercise in healthy humans. The alterations in respiratory muscle are not the same following exercise and voluntary isocapnic hyperpnea that simulates that exercise. Therefore, in this study we measured pulmonary and respiratory muscle function following maximal exercise or hyperpnea that simulated the ventilation seen during exercise. Forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV1.0), maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP) and handgrip strength were measured before and following voluntary hyperpnea in which minute ventilation and breathing frequency were controlled to levels identical to those obtained during the exercise test, and before and following a period of rest of equal duration to the exercise and hyperpnea tests. FVC decreased by 400 ml (7%, p < 0.05) immediately post-exercise. MIP decreased by 12 mmHg (15%, p < 0.005) following exercise and remained depressed for 15 minutes. Neither MEP nor FEV1.0 decreased following exercise, and none of the variables were altered following the control or hyperpnea bouts. These data indicate that pulmonary function and respiratory muscle strength are altered following exercise but not by similar bouts of hyperpnea without accompanying exercise. Therefore, exercise affects pulmonary function independent of the respiratory muscle work done.
KW - Exercise
KW - Exertion
KW - Fatigue
KW - Respiratory muscles
KW - Spirometry
UR - http://www.scopus.com/inward/record.url?scp=0032831666&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032831666&partnerID=8YFLogxK
U2 - 10.1055/s-1999-8828
DO - 10.1055/s-1999-8828
M3 - Article
VL - 20
SP - 470
EP - 475
JO - International Journal of Sports Medicine
JF - International Journal of Sports Medicine
SN - 0172-4622
IS - 7
ER -