Faculty Profiles - AKIMA Hiroshi

Papers - AKIMA Hiroshi

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Effects of prolonged vibration to vastus intermedius muscle on force steadiness of knee extensor muscles during isometric force-matching task Reviewed

Saito, A., Ando, R., Akima, H.

J. Electromyogr. Kinesiol. 2016.12

Associations of intramyocellular lipid in vastus lateralis and biceps femoris with blood free fatty acid and muscle strength differ between young and elderly adults. Reviewed Open Access

Hioki M, Kanehira N, Koike T, Saito A, Takahashi H, Shimaoka K, Sakakibara H, Oshida Y, Akima H.

Clin Physiol Funct Imaging Vol. 36 ( 6 ) page： 457-463 2016.11

Neuromuscular Activation of the Vastus Intermedius Muscle during Isometric Hip Flexion. Reviewed Open Access

Saito A, Akima H.

PLoS One Vol. 10 ( 10 ) page： e0141146 2016.10

Age-related changes in motor unit firing pattern of vastus lateralis muscle during low-moderate contraction. Reviewed Open Access

Watanabe K, Holobar A, Kouzaki M, Ogawa M, Akima H, Moritani T

Age (Dordr) Vol. 38 ( 3 ) page： 48 2016.6

Intramuscular adipose tissue determined by T1-weighted MRI at 3T primarily reflects extramyocellular lipids. Reviewed

Akima H, Hioki M, Yoshiko A, Koike T, Sakakibara H, Takahashi H, Oshida Y.

Magn Reson Imaging Vol. 34 ( 4 ) page： 397-403 2016.5

Effects of prolonged patellar tendon vibration on force steadiness in quadriceps femoris during force-matching task Reviewed

Saito, A., Ando, R., Akima, H.

Exp. Brain Res. Vol. 234 ( 1 ) page： 209-217 2016.1

Effect of interelectrode distance on surface electromyographic signals of vastus intermedius muscle in women and men Reviewed

Tomita, A., Ando, R., Saito, A., Watanabe, K.,Akima, H.

J. Electromyogr. Kinesiol. Vol. 25 page： 841-846 2015.12

Non-uniform recruitment along humans rectus femmoris muscle during transcutaneous electrical nerve stimulation. Reviewed

Watanabe, K., Kouzaki, M., Ando, R., Akima, H., Moritani, T.

Eur. J. Appl. Phsyiol. Vol. 115 page： 2159-2165 2015.6

Skeletal muscle size is a major predictor of intramuscular fat content regardless of age Reviewed

Akima, H., Yoshiko, A., Hioki, M., Kanehira, N., Shimaoka, K., Koike, T., Sakakibara, H., Oshida, Y.

Eur. J. Appl. Physiol. page： 000-000 2015

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

Purpose
Skeletal muscles of older individuals have a larger amount of intramuscular adipose tissue (IntraMAT) than those of younger individuals. It is not understood how aging affects the IntraMAT content of individual muscles of the thigh. We assessed the relationship between IntraMAT content and skeletal muscle cross-sectional area (CSA), subcutaneous adipose tissue CSA, biochemical blood profiles, and physical activity.
Methods
Fifteen older (70.7 ± 3.8 years) and 15 younger (20.9 ± 0.3 years) men and women participated in this study. Magnetic resonance imaging of the right thigh was taken to measure IntraMAT content and skeletal muscle CSA for the quadriceps femoris (QF), hamstrings (HM), adductor (AD) muscle groups and subcutaneous adipose tissue CSA of the thigh. Fasting blood samples were collected to measure plasma lipids, adiponectin, and HbA1c levels.
Results
IntraMAT content in QF, HM, and AD for the Older group was significantly higher than in the Younger group. However, skeletal muscle CSA normalized by body weight (skeletal muscle CSA/bw) in the QF (P < 0.001) and total thigh (P < 0.01) were significantly lower in the Older group compared with the Younger group.There were no significant differences in HM and AD. Stepwise regression analysis with IntraMAT content as a dependent variable revealed that skeletal muscle CSA/bw of the thigh was the only predictive variable for IntraMAT content in Older and Younger groups.
Conclusion
These results suggest that skeletal muscle size could be a major determinant of IntraMAT content regardless of age.

DOI： 10.1007/s00421-015-3148-2

Effects of prolonged patellar tendon vibration on force steadiness in quadriceps femoris during force-matching task. Reviewed

Saito, A., Ando, R., Akima, H.

Exp. Brain Res. page： 00-00 2015

Difference in fascicle behaviors between superficial and deep quadriceps muscles during isometric contractions Reviewed

Difference in fascicle behaviors between superficial and deep quadriceps muscles during isometric contractions.

Muscle & Nerve Vol. 999 ( 999 ) page： 999-999 2015

Coordination among thigh muscles including the vastus intermedius and adductor magnus at different cycling intensities. Reviewed

Saito, A., Akima, H.

Human Mov. Sci. page： 000-000 2014.12

Validity of fascicle length estimation in the vastus lateralis and vastus intermedius using ultrasonography Reviewed

Ando, R., Taniguchi, K., Saito, A., Fujimiya, M., Katayose, M., Akima, H.

J. Electromyogr. Kinesiol. Vol. 24 page： 214-220 2014.7

Estimation of muscle atrophy based on muscle thickness in knee surgery patients Reviewed

Hioki, M., Furukawa, T., Akima, H.

Clin. Physiol. Funct. Imaging Vol. 34 page： 183-190 2014.7

Local architecture of the vastus intermedius is a better predictor of knee extension force than that of the other quadriceps femoris muscle heads. Reviewed

Ando, R., Saito, A., Umemura, Y., Akima, H.

Clin. Physiol. Func. Imaging Vol. 9999 page： 9999 2014.6

Coordination among thigh muscles including the vastus intermedius and adductor magnus at different cycling intensities. Reviewed

Saito, A., Watanabe, K., Akima, H.

Human Mov. Sci. page： 000-000 2014

Activation of quadriceps femoris including vastus intermedius during fatiguing dynamic knee extensions Reviewed

Akima, H., Saito, A.

Eur. J. Appl. Physiol. Vol. 113 page： 2829-2840 2013.9

Estimation of muscle atrophy based on muscle thickness in knee surgery patients Reviewed

Hioki, M., Fufukawa, T., Akima, H.

Clin. Physiol. Funct. Imaging 2013.9

Knee joint angle affects EMG-force relationship in the vastus intermedius muscle Reviewed

Saito, A., Akima, H.

J. Electromyogr. Kinesiol. Vol. 23 page： 1406-1412 2013.9

The highest antagonistic coactivation of the vastus intermedius muscle among quadriceps femoris muscles during isometric knee flexion. Reviewed

Saito, A., Akima, H.

J. Electromyogr. Kinesiol. page： 000 2013.5

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Papers - AKIMA Hiroshi