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Changes in cerebral oxygenation during and following short‐term maximal aerobic exercise assessed during cognitive assessment
Author(s) -
BueEstes Christine Lo,
Burton Harold W,
Leddy John J,
Willer Barry S,
Horvath Peter J
Publication year - 2008
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.22.1_supplement.877.4
Subject(s) - oxygenation , medicine , aerobic exercise , treadmill , cognition , cardiology , physical therapy , incremental exercise , vo2 max , physical medicine and rehabilitation , anesthesia , heart rate , blood pressure , psychiatry
The purpose was to determine if brain oxygenation changed during and following short‐term maximal aerobic exercise with cognitive function measurement. Apparently healthy females using birth control (21.8 ± 2.7 yrs) with an average VO 2 max of 51.3 ± 6.8 ml/kg/min, completed two visits: 1) exercise, with a discontinuous short‐term maximal treadmill exercise protocol and cognitive assessment before, during breaks in, and after exercise and, 2) non‐exercise, with cognitive assessments timed to match testing in the exercising visit. Oxygenation in the left frontal lobe was measured by near infrared spectroscopy using a SensorMedics INVOS 5000 cerebral oximeter. Cerebral oxygenation (62–67%) did not change during the non‐exercise condition. Oxygenation was 3–6% higher after exercise, compared to before and after recovery. Cerebral oxygenation was 3–7.5% higher after exercise compared to the same time point without exercise, varying based on cognitive function. Our study suggests that short‐term maximal aerobic exercise coupled with cognitive tasks is enough to increase cerebral oxygenation and that exercise intensity is a significant factor in the observed changes in oxygenation. Exercise at 75% of VO 2 max and greater resulted in increased cerebral oxygenation, which extended into post exercise assessment, but not into the later recovery time point. MDRF Grant, Univ. at Buffalo