What question did this study set out to answer?

To noninvasively assess exercise-induced calf muscle hemoglobin oxygen saturation and recovery kinetics in healthy individuals and elderly subjects with mild peripheral vascular disease.

May 1, 1994Journal of Gerontology

Exercise-Induced Changes in Oxygen Saturation in the Calf Muscles of Elderly Subjects With Peripheral Vascular Disease

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Authors

KMKevin K. McCullyUniversity of Georgia CHC. HalberCollege of Physicians of Philadelphia JPJoel D. PosnerStaten Island University Hospital

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Implication

Physiological study demonstrates delayed muscle oxygen re-saturation after exercise in elderly individuals with peripheral vascular disease, indicating the diagnostic potential of optical...

Key Points

To noninvasively assess exercise-induced calf muscle hemoglobin oxygen saturation and recovery kinetics in healthy individuals and elderly subjects with mild peripheral vascular disease.
Assessed young controls (n = 6, 28 ± 6 yrs), healthy older adults (n = 20, 68 ± 7 yrs), and older adults with mild peripheral vascular disease (PVD) (n = 8, 72 ± 4 yrs).
Monitored lateral soleus muscle hemoglobin oxygen saturation using near-infrared spectroscopy (760 and 850 nm) following plantar flexion exercise and during a progressive walking test.
Oxygen saturation recovery time constants (HbO2Tc) were 21.5 ± 8.6 s in young controls, 26.9 ± 13.5 s in healthy older adults, 57.6 ± 42.2 s in PVD less-affected legs, and 104.4 ± 41.1 s in PVD affected legs.
HbO2Tc demonstrated a significant correlation with ankle-arm pressure ratios (r² = 0.63, p < 0.001).
During progressive walking, PVD subjects experienced calf pain and sustained near-maximal muscle deoxygenation compared to progressive deoxygenation in healthy controls.

Cite This Study

McCully et al. (1994) studied this question.

synapsesocial.com/papers/6a1d706873c56dd1bd2fae5d https://doi.org/10.1093/geronj/49.3.b128

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Implication

Physiological study demonstrates delayed muscle oxygen re-saturation after exercise in elderly individuals with peripheral vascular disease, indicating the diagnostic potential of optical...

Exercise-Induced Changes in Oxygen Saturation in the Calf Muscles of Elderly Subjects With Peripheral Vascular Disease

Discussion

Member takes

Implication

Key Points

Cite This Study

Exercise-Induced Changes in Oxygen Saturation in the Calf Muscles of Elderly Subjects With Peripheral Vascular Disease

Discussion

Member takes

Implication

Key Points

Cite This Study

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