• 7022 Citations
  • 46 h-Index
1988 …2019
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Research Output 1988 2019

  • 7022 Citations
  • 46 h-Index
  • 176 Article
  • 11 Conference contribution
  • 4 Chapter
  • 1 Review article
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Article
2008
40 Citations (Scopus)

Establishing a new index of muscle cross-sectional area and its relationship with isometric muscle strength

Akagi, R., Kanehisa, H., Kawakami, Y. & Fukunaga, T., 2008 Jan, In : Journal of Strength and Conditioning Research. 22, 1, p. 82-87 6 p.

Research output: Contribution to journalArticle

Muscle Strength
Muscles
Elbow
Isometric Contraction
Arm
30 Citations (Scopus)

In vivo fascicle behavior of synergistic muscles in concentric and eccentric plantar flexions in humans

Chino, K., Oda, T., Kurihara, T., Nagayoshi, T., Yoshikawa, K., Kanehisa, H., Fukunaga, T., Fukashiro, S. & Kawakami, Y., 2008 Feb, In : Journal of Electromyography and Kinesiology. 18, 1, p. 79-88 10 p.

Research output: Contribution to journalArticle

Muscles
Skeletal Muscle
Joints
Tendons
Ultrasonography
27 Citations (Scopus)

Muscle force per cross-sectional area is inversely related with pennation angle in strength trained athletes

Ikegawa, S., Funato, K., Tsunoda, N., Kanehisa, H., Fukunaga, T. & Kawakami, Y., 2008 Jan, In : Journal of Strength and Conditioning Research. 22, 1, p. 128-131 4 p.

Research output: Contribution to journalArticle

Athletes
Elbow
Muscles
Muscle Strength
Ultrasonography
38 Citations (Scopus)
Achilles Tendon
Torque
Ankle
Skeletal Muscle
Joints
2007
17 Citations (Scopus)

Fascicle behavior of medial gastrocnemius muscle in extended and flexed knee positions

Wakahara, T., Kanehisa, H., Kawakami, Y. & Fukunaga, T., 2007, In : Journal of Biomechanics. 40, 10, p. 2291-2298 8 p.

Research output: Contribution to journalArticle

Tendons
Muscle
Electromyography
Knee
Skeletal Muscle
16 Citations (Scopus)

In vivo behavior of muscle fascicles and tendinous tissues in human tibialis anterior muscle during twitch contraction

Oda, T., Himeno, R., C Hay, D., Chino, K., Kurihara, T., Nagayoshi, T., Kanehisa, H., Fukunaga, T. & Kawakami, Y., 2007, In : Journal of Biomechanics. 40, 14, p. 3114-3120 7 p.

Research output: Contribution to journalArticle

Muscle
Tissue
Muscles
Torque
Isometric Contraction
29 Citations (Scopus)

In vivo behavior of muscle fascicles and tendinous tissues of human gastrocnemius and soleus muscles during twitch contraction

Oda, T., Kanehisa, H., Chino, K., Kurihara, T., Nagayoshi, T., Fukunaga, T. & Kawakami, Y., 2007 Oct, In : Journal of Electromyography and Kinesiology. 17, 5, p. 587-595 9 p.

Research output: Contribution to journalArticle

Skeletal Muscle
Torque
Muscles
2006
46 Citations (Scopus)

Human skeletal muscle size and architecture: Variability and interdependence

Kawakami, Y., Abe, T., Kanehisa, H. & Fukunaga, T., 2006 Nov, In : American Journal of Human Biology. 18, 6, p. 845-848 4 p.

Research output: Contribution to journalArticle

interdependence
skeletal muscle
Skeletal Muscle
muscle
Quadriceps Muscle
12 Citations (Scopus)

Mapping activation levels of skeletal muscle in healthy volunteers: An MRI study

Kinugasa, R., Kawakami, Y. & Fukunaga, T., 2006 Dec, In : Journal of Magnetic Resonance Imaging. 24, 6, p. 1420-1425 6 p.

Research output: Contribution to journalArticle

Healthy Volunteers
Skeletal Muscle
Muscles
Exercise
Polymethyl Methacrylate
39 Citations (Scopus)

New insights into In vivo human skeletal muscle function

Kawakami, Y. & Fukunaga, T., 2006 Jan, In : Exercise and Sport Sciences Reviews. 34, 1, p. 16-21 6 p.

Research output: Contribution to journalArticle

Skeletal Muscle
Muscles
Mechanics
Tendons
23 Citations (Scopus)

Quantitative assessment of skeletal muscle activation using muscle functional MRI

Kinugasa, R., Kawakami, Y. & Fukunaga, T., 2006 Jun, In : Magnetic Resonance Imaging. 24, 5, p. 639-644 6 p.

Research output: Contribution to journalArticle

skeletal muscle
muscles
Muscle
Skeletal Muscle
Chemical activation
2005
16 Citations (Scopus)

Modeling and simulating the deformation of human skeletal muscle based on anatomy and physiology

Lemos, R. R., Rokne, J., Baranoski, G. V. G., Kawakami, Y. & Kurihara, T., 2005 Jul, In : Computer Animation and Virtual Worlds. 16, 3-4, p. 319-330 12 p.

Research output: Contribution to journalArticle

Physiology
Muscle
Chemical activation
Ultrasonics
Acoustic waves
47 Citations (Scopus)

Muscle activation and its distribution within human triceps surae muscles

Kinugasa, R., Kawakami, Y. & Fukunaga, T., 2005 Sep, In : Journal of Applied Physiology. 99, 3, p. 1149-1156 8 p.

Research output: Contribution to journalArticle

Muscles
Skeletal Muscle
Electromyography
Leg
Knee
2004
157 Citations (Scopus)

The accuracy of volume estimates using ultrasound muscle thickness measurements in different muscle groups

Miyatani, M., Kanehisa, H., Ito, M., Kawakami, Y. & Eukunaga, T., 2004 Mar, In : European Journal of Applied Physiology. 91, 2-3, p. 264-272 9 p.

Research output: Contribution to journalArticle

Muscles
Extremities
Elbow
Knee
Magnetic Resonance Imaging
2003
22 Citations (Scopus)

Effect of gender on mechanical power output during repeated bouts of maximal running in trained teenagers

Yanagiya, T., Kanehisa, H., Kouzaki, M., Kawakami, Y. & Fukunaga, T., 2003 May, In : International Journal of Sports Medicine. 24, 4, p. 304-310 7 p.

Research output: Contribution to journalArticle

Running
Lower Extremity
Track and Field
Muscles
Electric Impedance
19 Citations (Scopus)

Fascicle arrangements of vastus lateralis and gastrocnemius muscles in highly trained soccer players and swimmers of both genders

Kanehisa, H., Muraoka, Y., Kawakami, Y. & Fukunaga, T., 2003 Feb, In : International Journal of Sports Medicine. 24, 2, p. 90-95 6 p.

Research output: Contribution to journalArticle

Soccer
Quadriceps Muscle
Skeletal Muscle
Muscles
Athletes
59 Citations (Scopus)

Resistance training during unweighting maintains muscle size and function in human calf

Akima, H., Ushiyama, J. I., Kubo, J., Tonosaki, S. I., Itoh, M., Kawakami, Y., Fukuoka, H., Kanehisa, H. & Fukunaga, T., 2003 Apr 1, In : Medicine and Science in Sports and Exercise. 35, 4, p. 655-662 8 p.

Research output: Contribution to journalArticle

Bed Rest
Resistance Training
Muscles
Skeletal Muscle
Torque
2002
34 Citations (Scopus)

Effect of series elasticity on isokinetic torque-angle relationship in humans

Kawakami, Y., Kubo, K., Kanehisa, H. & Fukunaga, T., 2002, In : European Journal of Applied Physiology. 87, 4-5, p. 381-387 7 p.

Research output: Contribution to journalArticle

Quadriceps Muscle
Elasticity
Torque
Tendons
Muscles
39 Citations (Scopus)

Effects of equivolume isometric training programs comprising medium or high resistance on muscle size and strength

Kanehisa, H., Nagareda, H., Kawakami, Y., Akima, H., Masani, K., Kouzaki, M. & Fukunaga, T., 2002 Jun, In : European Journal of Applied Physiology. 87, 2, p. 112-119 8 p.

Research output: Contribution to journalArticle

Torque
Muscle Strength
Elbow
Education
Muscles
87 Citations (Scopus)

In vivo determination of fascicle curvature in contracting human skeletal muscles

Muramatsu, T., Muraoka, T., Kawakami, Y., Shibayamaand, A. & Fukunaga, T., 2002, In : Journal of Applied Physiology. 92, 1, p. 129-134 6 p.

Research output: Contribution to journalArticle

Skeletal Muscle
Muscles
Isometric Contraction
Muscle Contraction
Ankle
148 Citations (Scopus)

In vivo muscle fibre behaviour during counter-movement exercise in humans reveals a significant role for tendon elasticity

Kawakami, Y., Muraoka, T., Ito, S., Kanehisa, H. & Fukunaga, T., 2002 Apr 15, In : Journal of Physiology. 540, 2, p. 635-646 12 p.

Research output: Contribution to journalArticle

Elasticity
Ankle
Tendons
Foot Joints
Exercise
47 Citations (Scopus)

Length change of human gastrocnemius aponeurosis and tendon during passive joint motion

Muraoka, T., Muramatsu, T., Takeshita, D., Kawakami, Y. & Fukunaga, T., 2002, In : Cells Tissues Organs. 171, 4, p. 260-268 9 p.

Research output: Contribution to journalArticle

Tendons
Joints
Ankle Joint
Ultrasonography
Skeletal Muscle
63 Citations (Scopus)

Measurement of viscoelastic properties of tendon structures in vivo

Kubo, K., Kawakami, Y., Kanehisa, H. & Fukunaga, T., 2002, In : Scandinavian Journal of Medicine and Science in Sports. 12, 1, p. 3-8 6 p.

Research output: Contribution to journalArticle

Tendons
Architectural Accessibility
Skeletal Muscle
Elastic Modulus
Compliance
93 Citations (Scopus)

Muscle and tendon interaction during human movements

Fukunaga, T., Kawakami, Y., Kubo, K. & Kanehisa, H., 2002, In : Exercise and Sport Sciences Reviews. 30, 3, p. 106-110 5 p.

Research output: Contribution to journalArticle

Tendons
Muscles
Ultrasonography
5 Citations (Scopus)

Muscle and tendon relations in humans: Power enhancement in counter-movement exercise

Fukunaga, T., Kawakami, Y., Muraoka, T. & Kanehisa, H., 2002, In : Advances in Experimental Medicine and Biology. 508, p. 501-505 5 p.

Research output: Contribution to journalArticle

Tendons
Muscle
Exercise
Muscles
Fibers
26 Citations (Scopus)

Superficial aponeurosis of human gastrocnemius is elongated during contraction: Implications for modeling muscle-tendon unit

Muramatsu, T., Muraoka, T., Kawakami, Y. & Fukunaga, T., 2002, In : Journal of Biomechanics. 35, 2, p. 217-223 7 p.

Research output: Contribution to journalArticle

Tendons
Muscle
Muscles
Elongation
Skeletal Muscle
2001
28 Citations (Scopus)

Changes in aponeurotic dimensions upon muscle shortening: In vivo observations in man

Maganaris, C. N., Kawakami, Y. & Fukunaga, T., 2001, In : Journal of Anatomy. 199, 4, p. 449-456 8 p.

Research output: Contribution to journalArticle

shortenings
muscle
contraction
Muscles
muscles
120 Citations (Scopus)

Changes in muscle size, architecture, and neural activation after 20 days of bed rest with and without resistance exercise

Kawakami, Y., Akima, H., Kubo, K., Muraoka, Y., Hasegawa, H., Kouzaki, M., Imai, M., Suzuki, Y., Gunji, A., Kanehisa, H. & Fukunaga, T., 2001, In : European Journal of Applied Physiology. 84, 1-2, p. 7-12 6 p.

Research output: Contribution to journalArticle

Bed Rest
Exercise
Muscles
Quadriceps Muscle
Muscle Strength
55 Citations (Scopus)

Effects of repeated muscle contractions on the tendon structures in humans

Kubo, K., Kanehisa, H., Kawakami, Y. & Fukunaga, T., 2001, In : European Journal of Applied Physiology. 84, 1-2, p. 162-166 5 p.

Research output: Contribution to journalArticle

Muscle Fatigue
Muscle Contraction
Tendons
Muscles
Quadriceps Muscle
70 Citations (Scopus)

Growth changes in the elastic properties of human tendon structures

Kubo, K., Kanehisa, H., Kawakami, Y. & Fukanaga, T., 2001, In : International Journal of Sports Medicine. 22, 2, p. 138-143 6 p.

Research output: Contribution to journalArticle

Tendons
Growth
Muscles
Thigh
Compliance
232 Citations (Scopus)

Influence of static stretching on viscoelastic properties of human tendon structures in vivo

Kubo, K., Kanehisa, H., Kawakami, Y. & Fukunaga, T., 2001, In : Journal of Applied Physiology. 90, 2, p. 520-527 8 p.

Research output: Contribution to journalArticle

Muscle Stretching Exercises
Tendons
Architectural Accessibility
Skeletal Muscle
Elasticity
59 Citations (Scopus)

Influences of repetitive muscle contractions with different modes on tendon elasticity in vivo

Kubo, K., Kanehisa, H., Kawakami, Y. & Fukunaga, T., 2001, In : Journal of Applied Physiology. 91, 1, p. 277-282 6 p.

Research output: Contribution to journalArticle

Isometric Contraction
Elasticity
Muscle Contraction
Tendons
Muscles
360 Citations (Scopus)

In vivo behaviour of human muscle tendon during walking

Fukunaga, T., Kubo, K., Kawakami, Y., Fukashiro, S., Kanehisa, H. & Maganaris, C. N., 2001 Feb 7, In : Proceedings of the Royal Society B: Biological Sciences. 268, 1464, p. 229-233 5 p.

Research output: Contribution to journalArticle

Tendons
human behavior
tendons
walking
Walking
7 Citations (Scopus)

In vivo mechanical properties of proximal and distal aponeuroses in human tibialis anterior muscle

Muramatsu, T., Muraoka, T., Takeshita, D., Kawakami, Y. & Fukunaga, T., 2001, In : Cells Tissues Organs. 170, 2-3, p. 162-169 8 p.

Research output: Contribution to journalArticle

Muscles
Aponeurosis
Torque
Ultrasonography
166 Citations (Scopus)

Mechanical properties of tendon and aponeurosis of human gastrocnemius muscle in vivo

Muramatsu, T., Muraoka, T., Takeshita, D., Kawakami, Y., Hirano, Y. & Fukunaga, T., 2001, In : Journal of Applied Physiology. 90, 5, p. 1671-1678 8 p.

Research output: Contribution to journalArticle

Tendons
Achilles Tendon
Skeletal Muscle
Torque
Muscle Contraction
41 Citations (Scopus)

Muscle fiber and tendon length changes in the human vastus lateralis during slow pedaling

Muraoka, T., Kawakami, Y., Tachi, M. & Fukunaga, T., 2001, In : Journal of Applied Physiology. 91, 5, p. 2035-2040 6 p.

Research output: Contribution to journalArticle

Quadriceps Muscle
Tendons
Foot
Muscles
Knee
265 Citations (Scopus)

Muscle volume is a major determinant of joint torque in humans

Fukunaga, T., Miyatani, M., Tachi, M., Kouzaki, M., Kawakami, Y. & Kanehisa, H., 2001, In : Acta Physiologica Scandinavica. 172, 4, p. 249-255 7 p.

Research output: Contribution to journalArticle

Torque
Joints
Muscles
Elbow
Sports
2000
44 Citations (Scopus)

Architecture of contracting human muscles and its functional significance

Kawakami, Y., Ichinose, Y., Kubo, K., Ito, M., Imai, M. & Fukunaga, T., 2000 Feb, In : Journal of Applied Biomechanics. 16, 1, p. 88-97 10 p.

Research output: Contribution to journalArticle

Muscles
Skeletal Muscle
Joints
Muscle Contraction
Ultrasonics
56 Citations (Scopus)

Changes in muscle size and architecture following 20 days of bed rest.

Kawakami, Y., Muraoka, Y., Kubo, K., Suzuki, Y. & Fukunaga, T., 2000, In : Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology. 7, 3, p. 53-59 7 p.

Research output: Contribution to journalArticle

Bed Rest
Muscles
Quadriceps Muscle
Extremities
Exercise
66 Citations (Scopus)

Changes in the elastic properties of tendon structures following 20 days bed-rest in humans

Kubo, K., Akima, H., Kouzaki, M., Ito, M., Kawakami, Y., Kanehisa, H. & Fukunaga, T., 2000, In : European Journal of Applied Physiology. 83, 6, p. 463-468 6 p.

Research output: Contribution to journalArticle

Bed Rest
Tendons
Quadriceps Muscle
Torque
Muscles
81 Citations (Scopus)

Effect of short-duration spaceflight on thigh and leg muscle volume

Akima, H., Kawakami, Y., Kubo, K., Sekiguchi, C., Ohshima, H., Miyamoto, A. & Fukunaga, T., 2000, In : Medicine and Science in Sports and Exercise. 32, 10, p. 1743-1747 5 p.

Research output: Contribution to journalArticle

Space Flight
Thigh
Leg
Muscles
Bed Rest
91 Citations (Scopus)

Elasticity of tendon structures of the lower limbs in sprinters

Kubo, K., Kanehisa, H., Kawakami, Y. & Fukunaga, T., 2000, In : Acta Physiologica Scandinavica. 168, 2, p. 327-335 9 p.

Research output: Contribution to journalArticle

Quadriceps Muscle
Elasticity
Tendons
Lower Extremity
Skeletal Muscle
82 Citations (Scopus)

Elastic properties of muscle-tendon complex in long-distance runners

Kubo, K., Kanehisa, H., Kawakami, Y. & Fukunaga, T., 2000 Feb, In : European Journal of Applied Physiology and Occupational Physiology. 81, 3, p. 181-187 7 p.

Research output: Contribution to journalArticle

Tendons
Muscles
Compliance
Quadriceps Muscle
Knee
76 Citations (Scopus)

Fatigue responses of human triceps surae muscles during repetitive maximal isometric contractions

Kawakami, Y., Amemiya, K., Kanehisa, H., Ikegawa, S. & Fukunaga, T., 2000, In : Journal of Applied Physiology. 88, 6, p. 1969-1975 7 p.

Research output: Contribution to journalArticle

Isometric Contraction
Torque
Fatigue
Skeletal Muscle
Muscles
40 Citations (Scopus)

Interaction between series compliance and sarcomere kinetics determines internal sarcomere shortening during fixed-end contraction

Kawakami, Y. & Lieber, R. L., 2000 Oct, In : Journal of Biomechanics. 33, 10, p. 1249-1255 7 p.

Research output: Contribution to journalArticle

Sarcomeres
Compliance
Muscle
Kinetics
Muscles

Introduction: Specificity and plasticity of skeletal muscle architecture

Kawakami, Y. & Fukunaga, T., 2000, In : Journal of Applied Biomechanics. 16, 1, p. 68-69 2 p.

Research output: Contribution to journalArticle

Skeletal Muscle
Muscles
Sarcomeres
60 Citations (Scopus)

In vivo dynamics of human medial gastrocnemius muscletendon complex during stretch-shortening cycle exercise

Kubo, K., Kanehisa, H., Takeshita, D., Kawakami, Y., Fukashiro, S. & Fukunaga, T., 2000, In : Acta Physiologica Scandinavica. 170, 2, p. 127-135 9 p.

Research output: Contribution to journalArticle

Plyometric Exercise
Tendons
Muscles
Toes
Posture
55 Citations (Scopus)

In vivo estimation of contraction velocity of human vastus lateralis muscle during 'isokinetic' action

Ichinose-Muraoka, Y., Kawakami, Y., Ito, M., Kanehisa, H. & Fukunaga, T., 2000 Mar, In : Journal of Applied Physiology. 88, 3, p. 851-856 6 p.

Research output: Contribution to journalArticle

Quadriceps Muscle
Knee
Muscles
Articular Range of Motion
Ultrasonics
1999
199 Citations (Scopus)

Influence of elastic properties of tendon structures on jump performance in humans

Kubo, K., Kawakami, Y. & Fukunaga, T., 1999 Dec, In : Journal of Applied Physiology. 87, 6, p. 2090-2096 7 p.

Research output: Contribution to journalArticle

Tendons
Plyometric Exercise
Muscles
Architectural Accessibility
Quadriceps Muscle
3 Citations (Scopus)

Visco-elastic properties of tendon structures in human medial gastrocnemius muscle

Kubo, K., Kawakami, Y., Kanehisa, H. & Fukunaga, T., 1999 Oct, In : Japanese Journal of Physical Fitness and Sports Medicine. 48, 5, p. 597-606 10 p.

Research output: Contribution to journalArticle

Tendons
Skeletal Muscle
Architectural Accessibility
Elastic Modulus
Linear Models