Abstract
Objective: During maximal incremental exercise, the ability to work in the anaerobic condition, expressed by the respiratory exchange ratio, is associated with physical performance. Further, peak respiratory exchange ratio is regarded as the best non-invasive measure of a patient's actual exercise effort. This study examined whether ability to work in the anaerobic condition is also associated with physical performance in submaximal constant work rate exercise. Subjects and methods: A total of 75 older patients (51 men, 24 women), mean age 71.1 years (standard deviation 6.7 years), who had recently undergone cardiac surgery, performed cardiopulmonary exercise testing in a 6-min walk test before and after rehabilitation. Results: The distance walked, steady-state oxygen uptake, carbon dioxide output and respiratory exchange ratio increased significantly after rehabilitation (p <0.001 for all). In multivariable models predicting the distance walked before and after rehabilitation, higher steady-state respiratory exchange ratio was independently associated with longer distance (p <0.001 for both). Conclusion: In older patients receiving post-acute cardiac rehabilitation the ability to work in the anaerobic condition is associated with physical performance in submaximal constant work rate exercises. Thus the steady-state respiratory exchange ratio might be regarded as a measure of the patient's actual exercise effort. This information may prove useful in customizing exercise prescription and assessing the effects of rehabilitation.
| Original language | English |
|---|---|
| Pages (from-to) | 472-477 |
| Number of pages | 6 |
| Journal | Journal of Rehabilitation Medicine |
| Volume | 47 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 1 2015 |
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Keywords
- 6-minute walk test.
- Cardiac rehabilitation
- Cardiopulmonary exercise testing
- Elderly
- Respiratory exchange ratio
ASJC Scopus subject areas
- Rehabilitation
- Physical Therapy, Sports Therapy and Rehabilitation
Cite this
Ability to work in Anaerobic condition is associated with physical performance on the six-minute walk test in older patients receiving cardiac rehabilitation. / Pasquini, Guido; Vannetti, Federica; Molino-Lova, Raffaele.
In: Journal of Rehabilitation Medicine, Vol. 47, No. 5, 01.05.2015, p. 472-477.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ability to work in Anaerobic condition is associated with physical performance on the six-minute walk test in older patients receiving cardiac rehabilitation
AU - Pasquini, Guido
AU - Vannetti, Federica
AU - Molino-Lova, Raffaele
PY - 2015/5/1
Y1 - 2015/5/1
N2 - Objective: During maximal incremental exercise, the ability to work in the anaerobic condition, expressed by the respiratory exchange ratio, is associated with physical performance. Further, peak respiratory exchange ratio is regarded as the best non-invasive measure of a patient's actual exercise effort. This study examined whether ability to work in the anaerobic condition is also associated with physical performance in submaximal constant work rate exercise. Subjects and methods: A total of 75 older patients (51 men, 24 women), mean age 71.1 years (standard deviation 6.7 years), who had recently undergone cardiac surgery, performed cardiopulmonary exercise testing in a 6-min walk test before and after rehabilitation. Results: The distance walked, steady-state oxygen uptake, carbon dioxide output and respiratory exchange ratio increased significantly after rehabilitation (p <0.001 for all). In multivariable models predicting the distance walked before and after rehabilitation, higher steady-state respiratory exchange ratio was independently associated with longer distance (p <0.001 for both). Conclusion: In older patients receiving post-acute cardiac rehabilitation the ability to work in the anaerobic condition is associated with physical performance in submaximal constant work rate exercises. Thus the steady-state respiratory exchange ratio might be regarded as a measure of the patient's actual exercise effort. This information may prove useful in customizing exercise prescription and assessing the effects of rehabilitation.
AB - Objective: During maximal incremental exercise, the ability to work in the anaerobic condition, expressed by the respiratory exchange ratio, is associated with physical performance. Further, peak respiratory exchange ratio is regarded as the best non-invasive measure of a patient's actual exercise effort. This study examined whether ability to work in the anaerobic condition is also associated with physical performance in submaximal constant work rate exercise. Subjects and methods: A total of 75 older patients (51 men, 24 women), mean age 71.1 years (standard deviation 6.7 years), who had recently undergone cardiac surgery, performed cardiopulmonary exercise testing in a 6-min walk test before and after rehabilitation. Results: The distance walked, steady-state oxygen uptake, carbon dioxide output and respiratory exchange ratio increased significantly after rehabilitation (p <0.001 for all). In multivariable models predicting the distance walked before and after rehabilitation, higher steady-state respiratory exchange ratio was independently associated with longer distance (p <0.001 for both). Conclusion: In older patients receiving post-acute cardiac rehabilitation the ability to work in the anaerobic condition is associated with physical performance in submaximal constant work rate exercises. Thus the steady-state respiratory exchange ratio might be regarded as a measure of the patient's actual exercise effort. This information may prove useful in customizing exercise prescription and assessing the effects of rehabilitation.
KW - 6-minute walk test.
KW - Cardiac rehabilitation
KW - Cardiopulmonary exercise testing
KW - Elderly
KW - Respiratory exchange ratio
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UR - http://www.scopus.com/inward/citedby.url?scp=84928266843&partnerID=8YFLogxK
U2 - 10.2340/16501977-1956
DO - 10.2340/16501977-1956
M3 - Article
VL - 47
SP - 472
EP - 477
JO - Journal of Rehabilitation Medicine
JF - Journal of Rehabilitation Medicine
SN - 1650-1977
IS - 5
ER -