Abstract
The effects of dynamic plantar flexion exercise [40, 60, and 80 contractions·min-1 (cpm)] on calf and shin muscle oxygenation patterns and common femoral artery blood flow (Qfa) were examined in six female subjects [mean age 21 (SD 1) years] who exercised for 1 min at 33% of their maximal voluntary contraction at ankle angles between 90° and 100°. Spatially resolved near-infrared spectroscopy was used to measure medial gastrocnemius, lateral soleus (synergist) and anterior tibialis (antagonist) muscle oxygen saturation (SO2, %). Qfa was measured by ultrasound Doppler. The SO2 changed significantly only in the medial gastrocnemius and its decrease (up to about 30%) was independent of the contraction frequencies examined. The increase in Qfa, at the end of exercise, was highest at 80 cpm. When the exercise at 60 cpm was prolonged until exhaustion [mean 2.7 (SD 1.1) min], medial gastrocnemius SO2 decreased, reaching its minimal value [mean 30 (SD 10)%] within the 1st min, and had partially recovered before the end of the exercise with concomitant increases in total haemoglobin content and Qfa. These results suggest that the medial gastrocnemius is the muscle mostly involved in dynamic plantar flexion exercise and its oxygen demand with increases in contraction frequency and duration is associated with an up-stream increase in Qfa.
| Original language | English |
|---|---|
| Pages (from-to) | 387-394 |
| Number of pages | 8 |
| Journal | European Journal of Applied Physiology |
| Volume | 84 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2001 May |
| Externally published | Yes |
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Keywords
- Leg blood flow
- Muscle metabolism
- Muscle oxygen saturation
- Near-infrared spectroscopy
- Non-invasive measurements
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
- Physiology
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation
Cite this
Calf and shin muscle oxygenation patterns and femoral artery blood flow during dynamic plantar flexion exercise in humans. / Quaresima, V.; Homma, S.; Azuma, K.; Shimizu-Okuyama, Shizuyo; Chiarotti, F.; Ferrari, M.; Kagaya, A.
In: European Journal of Applied Physiology, Vol. 84, No. 5, 05.2001, p. 387-394.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Calf and shin muscle oxygenation patterns and femoral artery blood flow during dynamic plantar flexion exercise in humans
AU - Quaresima, V.
AU - Homma, S.
AU - Azuma, K.
AU - Shimizu-Okuyama, Shizuyo
AU - Chiarotti, F.
AU - Ferrari, M.
AU - Kagaya, A.
PY - 2001/5
Y1 - 2001/5
N2 - The effects of dynamic plantar flexion exercise [40, 60, and 80 contractions·min-1 (cpm)] on calf and shin muscle oxygenation patterns and common femoral artery blood flow (Qfa) were examined in six female subjects [mean age 21 (SD 1) years] who exercised for 1 min at 33% of their maximal voluntary contraction at ankle angles between 90° and 100°. Spatially resolved near-infrared spectroscopy was used to measure medial gastrocnemius, lateral soleus (synergist) and anterior tibialis (antagonist) muscle oxygen saturation (SO2, %). Qfa was measured by ultrasound Doppler. The SO2 changed significantly only in the medial gastrocnemius and its decrease (up to about 30%) was independent of the contraction frequencies examined. The increase in Qfa, at the end of exercise, was highest at 80 cpm. When the exercise at 60 cpm was prolonged until exhaustion [mean 2.7 (SD 1.1) min], medial gastrocnemius SO2 decreased, reaching its minimal value [mean 30 (SD 10)%] within the 1st min, and had partially recovered before the end of the exercise with concomitant increases in total haemoglobin content and Qfa. These results suggest that the medial gastrocnemius is the muscle mostly involved in dynamic plantar flexion exercise and its oxygen demand with increases in contraction frequency and duration is associated with an up-stream increase in Qfa.
AB - The effects of dynamic plantar flexion exercise [40, 60, and 80 contractions·min-1 (cpm)] on calf and shin muscle oxygenation patterns and common femoral artery blood flow (Qfa) were examined in six female subjects [mean age 21 (SD 1) years] who exercised for 1 min at 33% of their maximal voluntary contraction at ankle angles between 90° and 100°. Spatially resolved near-infrared spectroscopy was used to measure medial gastrocnemius, lateral soleus (synergist) and anterior tibialis (antagonist) muscle oxygen saturation (SO2, %). Qfa was measured by ultrasound Doppler. The SO2 changed significantly only in the medial gastrocnemius and its decrease (up to about 30%) was independent of the contraction frequencies examined. The increase in Qfa, at the end of exercise, was highest at 80 cpm. When the exercise at 60 cpm was prolonged until exhaustion [mean 2.7 (SD 1.1) min], medial gastrocnemius SO2 decreased, reaching its minimal value [mean 30 (SD 10)%] within the 1st min, and had partially recovered before the end of the exercise with concomitant increases in total haemoglobin content and Qfa. These results suggest that the medial gastrocnemius is the muscle mostly involved in dynamic plantar flexion exercise and its oxygen demand with increases in contraction frequency and duration is associated with an up-stream increase in Qfa.
KW - Leg blood flow
KW - Muscle metabolism
KW - Muscle oxygen saturation
KW - Near-infrared spectroscopy
KW - Non-invasive measurements
UR - http://www.scopus.com/inward/record.url?scp=0035008024&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035008024&partnerID=8YFLogxK
U2 - 10.1007/s004210100390
DO - 10.1007/s004210100390
M3 - Article
C2 - 11417425
AN - SCOPUS:0035008024
VL - 84
SP - 387
EP - 394
JO - European Journal of Applied Physiology
JF - European Journal of Applied Physiology
SN - 1439-6319
IS - 5
ER -