Faculty Profiles - KOIKE, Teruhiko

Papers - KOIKE, Teruhiko

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Age-related changes in muscle volume and intramuscular fat content in quadriceps femoris and hamstrings

Hioki Maya, Kanehira Nana, Koike Teruhiko, Saito Akira, Shimaoka Kiyoshi, Sakakibara Hisataka, Oshida Yoshiharu, Akima Hiroshi

EXPERIMENTAL GERONTOLOGY Vol. 132 2020.4

Electromyostimulation Induced Changes In Intramyocellular Lipid Of Vastus Lateralis In Older Adults

Hioki Maya, Kanehira Nana, Koike Teruhiko, Saito Akira, Takahashi Hideyuki, Shimaoka Kiyoshi, Sakakibara Hisataka, Oshida Yoshiharu, Akima Hiroshi

MEDICINE AND SCIENCE IN SPORTS AND EXERCISE Vol. 51 ( 6 ) page： 717 - 717 2019.6

Electromyostimulation Induced Changes In Intramyocellular Lipid Of Vastus Lateralis In Older Adults

Hioki Maya, Kanehira Nana, Koike Teruhiko, Saito Akira, Takahashi Hideyuki, Shimaoka Kiyoshi, Sakakibara Hisataka, Oshida Yoshiharu, Akima Hiroshi

MEDICINE AND SCIENCE IN SPORTS AND EXERCISE Vol. 51 ( 6 ) page： 717 - 717 2019.6

Skeletal muscle oxidative capacity related to intramyocellular lipid in young but not in older individuals. International journal

Akito Yoshiko, Kana Shiozawa, Shiori Niwa, Hideyuki Takahashi, Teruhiko Koike, Kohei Watanabe, Keisho Katayama, Hiroshi Akima

Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme Vol. 50 page： 1 - 9 2025.1

Language：English Publishing type：Research paper (scientific journal)

Skeletal muscles contain lipids inside and outside cells, namely intramyocellular lipids (IMCL) and extramyocellular lipids (EMCL), respectively; lipids have also been found to be interspersed between these muscles as adipose tissue, namely intermuscular adipose tissue (IMAT). Metabolized IMCL has been recognized as an important substrate for energy production and their metabolism is determined by the muscle oxidative capacity. Therefore, it has been speculated that muscle oxidative capacity is related to muscle lipid content. Excessive accumulation of EMCL and IMAT has been confirmed in older individuals, leading to metabolic disorders and a decline in muscle strength. However, whether EMCL and IMAT contribute to muscle lipid metabolism remains unknown. This study aimed to investigate whether muscle oxidative capacity is related to IMCL, EMCL, and IMAT in young and older individuals. A total of 18 young and 14 older individuals were included and their muscle oxidative capacity was assessed based on the recovery rate of muscle oxygen saturation after exercise, using near-infrared spectroscopy of the medial gastrocnemius. IMCL, EMCL, and IMAT were assessed using magnetic resonance spectroscopy and imaging. A relationship between muscle oxidative capacity and IMCL was confirmed in young (r = -0.47, P < 0.05) but not older individuals (r = 0.22, P = 0.45). Muscle oxidative capacity was not related to EMCL or IMAT in either young or older individuals. These results suggest that IMCL in young individuals can contribute to muscle lipid metabolism, but not EMCL and IMAT, and this relationship differs with aging.

DOI： 10.1139/apnm-2024-0272

Web of Science

PubMed

Association of skeletal muscle oxidative capacity with muscle function, sarcopenia-related exercise performance, and intramuscular adipose tissue in older adults. International journal

Akito Yoshiko, Kana Shiozawa, Shiori Niwa, Hideyuki Takahashi, Teruhiko Koike, Kohei Watanabe, Keisho Katayama, Hiroshi Akima

GeroScience Vol. 46 ( 1 ) page： 517 - 530 2024.2

Language：English Publishing type：Research paper (scientific journal)

Muscle function and exercise performance measures, such as muscle endurance capacity, maximal strength, chair stand score, gait speed, and Timed Up and Go score, are evaluated to diagnose sarcopenia and frailty in older individuals. Furthermore, intramuscular adipose tissue (IntraMAT) content increases with age. Skeletal muscle oxidative capacity determines muscle metabolism and maintains muscle performance. This study aimed to investigate the association of skeletal muscle oxidative capacity with muscle function, exercise performance, and IntraMAT content in older individuals. Thirteen older men and women participated in this study. Skeletal muscle oxidative capacity was assessed by the recovery speed of muscle oxygen saturation after exercise using near-infrared spectroscopy from the medial gastrocnemius. We assessed two muscle functions, peak torque and time to task failure, and four sarcopenia-related exercise performances: handgrip strength, gait speed, 30-s chair stand, and Timed Up and Go. The IntraMAT content was measured using axial magnetic resonance imaging. The results showed a relationship between skeletal muscle oxidative capacity and gait speed but not with muscle functions and other exercise performance measures. Skeletal muscle oxidative capacity was not related to IntraMAT content. Skeletal muscle oxidative capacity, which may be indicative of the capacity of muscle energy production in the mitochondria, is related to locomotive functions but not to other functional parameters or skeletal fat infiltration.

DOI： 10.1007/s11357-023-01043-6

Web of Science

PubMed

Factors related to trunk intramuscular adipose tissue content - A comparison of younger and older men. Reviewed International journal

Funa Kitagawa, Madoka Ogawa, Akito Yoshiko, Yoshiharu Oshida, Teruhiko Koike, Hiroshi Akima, Noriko I Tanaka

Experimental gerontology Vol. 168 page： 111922 - 111922 2022.10

Language：English Publishing type：Research paper (scientific journal)

The present study investigated factors related to trunk intramuscular adipose tissue (IntraMAT) content in younger and older men. Twenty-three healthy younger (20 to 29 years) and 20 healthy older men (63 to 79 years) participated in this study. The trunk IntraMAT content was measured using magnetic resonance imaging at the height of the 3rd lumbar vertebra. In addition to blood properties and physical performance, dietary intake was assessed by a self-administered diet history questionnaire. The dietary intake status was quantified using the nutrient adequacy score for the intake of 10 selected nutrients by summing the number of items that met the criteria of dietary reference intakes for Japanese individuals. The results obtained revealed that the trunk IntraMAT content was significantly higher in the older group than in the younger group (p < 0.05). In the younger group, the trunk IntraMAT content significantly correlated with systolic and diastolic blood pressure and HbA1c (rs = 0.443 to 0.464, p < 0.05). In the older group, significant and negative correlations were observed between the trunk IntraMAT content and 5-m usual walking speed, handgrip strength, and nutrient adequacy scores (rs = -0.485 to -0.713, p < 0.05). These results indicate that factors associated with the trunk IntraMAT content differed in an age dependent manner. In the younger group, the trunk IntraMAT content correlated with the metabolic status such as blood pressure and HbA1c. In the older group, physical performance and the dietary intake status negatively correlated with the trunk IntraMAT content.

DOI： 10.1016/j.exger.2022.111922

Web of Science

PubMed

Eicosapentaenoic acid enhances skeletal muscle hypertrophy without altering the protein anabolic signaling pathway. Reviewed

Siriguleng, T. Koike, Y. Natsume, H. Jiang, L. Mu, Y. Oshida.

Physiol Res Vol. 17 ( 70(1) ) page： 55 - 65 2021.3

Comparison of fascicle behaviors between superficial and deeper muscles of triceps brachii during isometric contractions Reviewed

Hiroshi Akima, Hisashi Maeda, Teruhiko Koike, Koji Ishida, Ryosuke Ando

Journal of Electromyography and Kinesiology Vol. 54 page： 102452 - 102452 2020.10

Comparing intramuscular adipose tissue on T1-weighted and two-point Dixon images Reviewed International journal

Madoka Ogawa, Akito Yoshiko, Noriko Tanaka, Teruhiko Koike, Yoshiharu Oshida, Hiroshi Akima

PLoS One Vol. 15 ( 4 ) 2020.4

Muscle deoxygenation and neuromuscular activation in synergistic muscles during intermittent exercise under hypoxic conditions. Reviewed

Yoshiko A, Katayama K, Ishida K, Ando R, Koike T, Oshida Y, Akima H

Scientific Reports Vol. 10 ( 1 ) 2020.1

HIGHER AND LOWER MUSCLE ECHO INTENSITY IN ELDERLY INDIVIDUALS IS DISTINGUISHED BY MUSCLE SIZE, PHYSICAL PERFORMANCE AND DAILY PHYSICAL ACTIVITY

Yoshiko Akito, Natsume Yukie, Makino Taeko, Hayashi Takahiro, Umegaki Hiroyuki, Yoshida Yasuko, Cheng Xian Wu, Kuzuya Masafumi, Ishida Koji, Koike Teruhiko, Oshida Yoshiharu, Akima Hiroshi

ULTRASOUND IN MEDICINE AND BIOLOGY Vol. 45 ( 9 ) page： 2372 - 2380 2019.9

Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCIENCE INC

This study was performed to identify factors that discriminate muscle echo intensity (EI) among parameters of body composition, physical function and daily physical activity in elderly individuals. A total of 209 men and women (73.7 +/- 2.8 y) were evaluated. EI was measured on ultrasonographic axial thigh muscle images. The participants were categorized into the low, mid and high EI groups. We measured the skeletal muscle mass index (SMI) and physical functions. The high EI group exhibited a significantly lower SMI, slower 5-m walking time and shorter 6-min walking distance than the low EI group and had a shorter moderate-intensity activity time than the mid EI group. As a result of the discriminant analysis, elderly individuals were categorized into EI groups by SMI, daily activity and physical function. The data indicate that morphologic and functional parameters and the daily activity level help to discriminate higher and lower muscle EI. (C) 2019 World Federation for Ultrasound in Medicine & Biology. All rights reserved.

DOI： 10.1016/j.ultrasmedbio.2019.05.029

Web of Science

Twenty-four months’ resistance and endurance training improves muscle size and physical functions but not muscle quality in older adults requiring long-term care. Reviewed

Yoshiko A, Kaji T, Sugiyama H, Koike T, Oshida Y, Akima H

The Journal of Nutrition, Health & Aging Vol. 23 ( 6 ) page： 564 - 570 2019.6

Relationship between physical activity and intramyocellular lipid content is different between young and older adults

Hioki Maya, Kanehira Nana, Koike Teruhiko, Saito Akira, Takahashi Hideyuki, Shimaoka Kiyoshi, Sakakibara Hisataka, Oshida Yoshiharu, Akima Hiroshi

EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY Vol. 119 ( 1 ) page： 113 - 122 2019.1

Effects of 10-week walking and walking with home-based resistance training on muscle quality, muscle size, and physical functional tests in healthy older individuals. Reviewed

Yoshiko A, Tomita A, Ando R, Ogawa M, Kondo S, Saito A, Tanaka N.I, Koike T, Oshida Y, Akima H

European Review of Aging and Physical Activity Vol. 15 ( 13 ) 2018.11

Effects of post-fracture non-weight-bearing immobilization on muscle atrophy, intramuscular and intermuscular adipose tissues in the thigh and calf Reviewed

Akito Yoshiko, Koun Yamauchi, Takayuki Kato, Koji Ishida, Teruhiko Koike, Yoshiharu Oshida, Hiroshi Akima

Skeletal Radiology Vol. 47 ( 11 ) page： 1541 - 1549 2018.11

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Springer Verlag

Objective: Disuse and/or a non-weight-bearing condition changes muscle composition, with decreased skeletal muscle tissue and increased fat within (intramuscular adipose tissue, IntraMAT) and between (intermuscular adipose tissue, InterMAT) given muscles. Excessive adipose tissue contributes to dysfunctional and metabolically impaired muscle. How these adipose tissues change during orthopedic treatment (e.g., cast immobilization, daily use of crutches) is not well documented. This study aimed to quantify changes in IntraMAT, InterMAT, and thigh and calf muscle tissue during orthopedic treatment. Materials and methods: We studied 8 patients with fifth metatarsal bone or fibular fractures. The ankle joint involved underwent plaster casting for approximately 4 weeks, with crutches used during that time. Axial T1-weighted MRI at the mid-thigh and a 30% proximal site at the calf were obtained to measure IntraMAT and InterMAT cross-sectional areas (CSAs) and skeletal muscle tissue CSA before treatment and 4 weeks afterward. Results: Thigh and calf muscle tissue CSAs were significantly decreased from before to after treatment: thigh, 85.8 ± 7.6 to 77.1 ± 7.3 cm2
calf, 53.3 ± 5.5 to 48.9 ± 5.0 cm2 (p &lt
0.05). None of the IntraMAT or InterMAT changes was statistically significant. There was a relation between the percentage change of thigh IntraMAT CSA and muscle tissue CSA (rs = −0.86, p &lt
0.01). Conclusions: The 4 weeks of treatment primarily induced skeletal muscle atrophy with less of an effect on IntraMAT or InterMAT. There is a risk of increasing IntraMAT relatively by decreasing skeletal muscle tissue size during orthopedic treatment.

DOI： 10.1007/s00256-018-2985-6

Web of Science

Scopus

Muscle quality characteristics of muscles in the thigh, upper arm and lower back in elderly men and women Reviewed

Akito Yoshiko, Takashi Kaji, Hiroki Sugiyama, Teruhiko Koike, Yoshiharu Oshida, Hiroshi Akima

European Journal of Applied Physiology Vol. 118 ( 7 ) page： 1385 - 1395 2018.7

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Springer Verlag

Purpose: The ratio of fat within skeletal muscle is an important parameter that is indicative of muscle quality, and can be assessed using ultrasonography to measure echo intensity (EI). Muscle EI indicates muscle strength and risk of physical dysfunction
however, this observation was determined following examinations of only selected muscle. The purpose of this study was to investigate the EI characteristics of muscles in several regions in elderly men and women, using physical function tests and serum cholesterol levels. Methods: Twenty-two men and women (age 78 ± 8 years) participated in this study. The EIs were calculated from rectus femoris (RF), biceps femoris (BF) triceps brachii (TB) and multifidus (MF) using B-mode transverse ultrasound images. Seven functional tests (isometric knee-extension peak torque, functional reach, sit-to-stand, 5-m normal/maximal speed walking, handgrip strength and timed up-and-go) and blood lipid components including adipocytokines were measured in all participants. Results: A statistically significant correlation between EI of the RF, TB and BF was observed (r = 0.46–0.50, P &lt
0.05), but not between EI of the MF and that of other muscles. EI of muscles of the limbs, which was averaged EI for RF, TB and BF, was negatively correlated with leptin levels (adjusted R2 = 0.27, P &lt
0.01), and EI of the MF was correlated with muscle mass and performance in the timed up-and-go test (adjusted R2 = 0.61, P &lt
0.01). Conclusion: These results suggest that EI might be influenced by specific parameters depending on the location of the muscle.

DOI： 10.1007/s00421-018-3870-7

Web of Science

Scopus

Effects Of 24 Months Resistance And Endurance Training On Muscle Quality, Quantity And Physical Functions In Elderly With Long-term Care

Yoshiko Akito, Kaji Takashi, Sugiyama Hiroki, Koike Teruhiko, Oshida Yoshiharu, Akima Hiroshi

MEDICINE AND SCIENCE IN SPORTS AND EXERCISE Vol. 50 ( 5 ) page： 209-209 2018.5

Blunted Sympathetic Vasomotor Outflow To Inspiratory Resistive Breathing During Exercise In Women Compared to Men

Katayama Keisho, Smith Joshua R., Goto Kanako, Shimizu Kaori, Saito Mitsuru, Ishida Koji, Koike Teruhiko, Iwase Satoshi, Harms Craig A.

MEDICINE AND SCIENCE IN SPORTS AND EXERCISE Vol. 50 ( 5 ) page： 284-285 2018.5

Blunted Sympathetic Vasomotor Outflow To Inspiratory Resistive Breathing During Exercise In Women Compared to Men

Katayama Keisho, Smith Joshua R, Goto Kanako, Shimizu Kaori, Saito Mitsuru, Ishida Koji, Koike Teruhiko, Iwase Satoshi, Harms Craig A

MEDICINE AND SCIENCE IN SPORTS AND EXERCISE Vol. 50 ( 5 ) page： 284-285 2018.5

Effects Of 24 Months Resistance And Endurance Training On Muscle Quality, Quantity And Physical Functions In Elderly With Long-term Care

Yoshiko Akito, Kaji Takashi, Sugiyama Hiroki, Koike Teruhiko, Oshida Yoshiharu, Akima Hiroshi

MEDICINE AND SCIENCE IN SPORTS AND EXERCISE Vol. 50 ( 5 ) page： 209-209 2018.5

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Papers - KOIKE, Teruhiko