Research Institute of National Rehabilitation Center for the Disabled (NRCD)

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2008

  1. Nakazawa K, Kawashima N and Akai M. Effect of different preparatory states on the reflex responses of ankle flexor and extensor muscles to a sudden drop of support surface during standing in humans. J Electromyography & Kinesiol. (in press)

  2. Kawashima N, Nozaki D, Abe OM, and Nakazawa K. Shapping appropriate locomotive motor output through interlimb neural pathway within spinal cord in humans. J Neurophysiol. 99: 2946-2955, 2008

  3. Takahashi M, Kamibayashi K, Nakajima T, Akai M, Nakazawa K. Changes in corticospinal excitability during observation of walking in humans. Neuroreport. 19(7):727-31, 2008

  4. Nakajima T, Kamibayashi K, Takahashi M, Komiyama T, Akai M, and Nakazawa K. Load-related modulation of cutaneous reflexes in the tibialis anterior muscle during passive walking in humans. Eur J Neurosci. 27: 1566-1576, 2008

  5. Kawashima N and Nakazawa K. Characteristice of the locomotor-like muscle activity during orthotic gait in complete paraplegic patients. Neurol Res. 30(1):36-45, 2008

  6. Nakajima T, Kamibayashi K, Takahashi M, Komiyama T, Akai M, and Nakazawa K. Phase-dependent modulation of cutaneous reflexes in tibialis anterior muscle during passive walking. Neurol Res. 30(1): 46-51, 2008

  7. Yu E, Abe OM, Masani K, Kawashima N, Eto F, Haga N, Nakazawa K. Evaluation of postural control in quiet standing using the center of mass acceleration: comparison among the young, the elderly and individuals with stroke. Arch Phys Med Rehabil. 89(6):1133-9, 2008

  8. Jiggid E, Kawashima N, Ogata H, Nakazawa K, Akai M, Eto F, and Haga N.  Effects of the passive leg movement on the oxygenation level of lower limb muscle in the chronic stroke patients. Neurorehabilitation & Neural Repair. 22: 40-49, 2008

2007

  1. Miyoshi T, Hiramatsu K, Yamamoto SI, Nakazawa K, Akai M. Robotic gait trainer in water: Development of an underwater gait-training orthosis. Disability & Rehabilitation. 4:1-7, 2007

  2. Kakihana W, Akai M, Nakazawa K, Naito K, Torii S. Inconsistent knee varus moment reduction caused by a lateral wedge in knee osteoarthritis. Am J Phys Med Rehabil. 86(6):446-54, 2007

  3. Sayenko DG, Vette AH, Kamibayashi K, Nakajima T, Akai M, Nakazawa K. Facilitation of the soleus stretch reflex induced by electrical excitation of plantar cutaneous afferents located around the heel. Neurosci Lett. 415(3):294-8, 2007

  4. Sekiguchi H, Kohno Y, Hirano T, Akai M, Nakajima Y, Nakazawa K. Modulation of corticospinal excitability during lengthening and shortening contractions in the first dorsal interosseus muscle of humans. Exp Brain Res. 178(3):374-84, 2007

  5. Ohta Y, Yano H, Suzuki R, Yoshida M, Kawashima N, Nakazawa K. A two-degree-of-freedom motor-powered gait orthosis for spinal cord injury patients. Proc Inst Mech Eng. 221(6):629-39, 2007

2006

  1. Nakazawa K, Kawashima N, Akai M. Enhanced stretch reflex excitability of the soleus muscle in persons with incomplete rather than complete chronic spinal cord injury. Arch Phys Med Rehabil 87:71-75, 2006

  2. Kawashima N, Taguchi D, Nakazawa K, and Akai M. Effect of lesion level on the orthotic gait performance in individuals with spinal cord injuries. Spinal Cord 44: 487-494, 2006

  3. Miyoshi T, Nakazawa K, Tanizaki M, Sato T, Akai M. Altered activation pattern in synergistic ankle plantarflexor muscles in a reduced-gravity environment. Gait and Posture 24(1):94-9, 2006

  4. Miyoshi T, Hotta K, Yamamoto SI, Nakazawa K, Akai M. Somatosensory graviception inhibits soleus H-reflex gain in humans during walking. Exp Brain Res. 169(1):135-8, 2006

  5. Kawashima N, Yano H, Ohta Y, and Nakazawa K. Stretch reflex modulation during imposed static and dynamic hip movements in standing humans. Exp Brain Res 174: 342-350, 2006 

2005

  1. Kawashima N, Nozaki D, Akai M, Nakazawa K. Alternate leg movement amplifies locomotor-like muscle activity in spinal cord injured persons. J Neurophysiol. 93:777-785, 2005

  2. Miyoshi T, Shirota T., Yamamoto SI, Nakazawa K, Akai M. Functional roles of lower limb joint moments: a biomechanical study in young, healthy subjects comparing walking in water and on land. Clin Biomec. 20:194-201, 2005

  3. Nozaki D, Nakazawa K, Akai M. Uncertainty of knee joint muscle activity during knee joint torque exertion: the significance of controlling adjacent joint torque. J Appl Physiol 99:1093-1103, 2005

  4. Nozaki D, Nakazawa K, Akai M. Muscle activity determined on the basis of cosine tuning with a nontrivial preferred direction during isometric force exertion by the lower limb. J Neurophysiol. 93:2614-2624, 2005

  5. Kakihana W, Torii S, Akai M, Nakazawa K, Fukano M, Naito K. Effect of a lateral wedge on joint moments during gait in subjects with recurrent ankle sprain. Am J Phys Med Rehabil. 84(11):858-64, 2005

  6. Kakihana W, Akai M, Nakazawa K, Takashima T, Naito K, Torii S. Effects of laterally wedged insoles on knee and subtalar joint moments. Arch Phys Med Rehabil. 86:1465-1471, 2005

  7. Kawashima N., Nakazawa K, Akai M. Muscle oxygenation of the paralyzed lower limb in spinal cord injured persons. Med Sci Sport Exer. 37:915−921, 2005

2004

  1. Nakazawa K, Kawashima N, Akai M, Yano H. On the reflex co-activation of ankle flexor and extensor muscles induced by a sudden drop of support surface during walking in humans. J Appl Physiol. 96:604-611, 2004

  2. Nakazawa K, Miyoshi T, Sekiguchi H, Nozaki D, Akai M, Yano H. Effects of joint loading and unloading of lower limb joints on the soleus H-reflex in standing humans. Clin Neurophysiol. 115(6):1296-1304, 2004

  3. Miyoshi T, Shirota T, Yamamoto SI, Nakazawa K, Akai M. Effect of the walking speed to the lower limb joint angular displacements, joint moments and ground reaction forces during walking in water. Disability & Rehabilitation 26:724-732, 2004

  4. Kawashima N, Nakazawa K, Ishii N, Akai M, Yano H. Potential impact of orthotic gait exercise on natural killer cell activities in thoracic level of spinal cord injured patients. Spinal Cord. 42:420-424, 2004

  5. Kawashima N, Nakazawa K, Yamamoto S-I. Nozaki D, Akai M, Yano H. Stretch reflex excitability of the antigravity ankle extensor muscle in humans. Acta Physiol Scand. 180:99-105, 2004

  6. Kudo K, Miyazaki M, Kimura T, Yamanaka K, Kadota H, Hirashima M, Nakajima Y, Nakazawa K, Ohtsuki T. Selective activation and deactivation of the human brain structures between speeded and precisely timed tapping responses to identical visual stimulus: an fMRI study. Neuroimage 22:1291-1301, 2004

  7. Nakazawa K, Kakihana W, Kawashima N, Akai M, Yano H. Induction of locomotor-like EMG activity in paraplegic persons by orthotic gait training. Exp Brain Res. 157:117-123, 2004

  8. Kuramochi R, Kimura T, NakazawaK, Akai M, Torii S, Suzuki S. Anticipatory modulation of neck muscle reflex response induced by mechanical perturbations of the human forehead. Neurosci Lett. 366:206-210, 2004

  9. Kakihana W, Akai M, Yamasaki N, Takashima T, Nakazawa K. Changes of joint moments in the gait of normal subjects wearing laterally wedged insoles. Am J Phys Med Rehabil. 83:273-288, 2004

2003

  1. Nakazawa K, Kawashima N, Obata H, Yamanaka K, Nozaki D, Akai M. Facilitation of both stretch reflex and corticospinal pathways of the tibialis anterior muscle during standing in humans. Neurosci Lett. 338:53-56, 2003

  2. Masani K, Popovic MR, Nakazawa K, Kouzaki M, Nozaki D. Importance of body sway velocity information in controlling ankle extensor activities during quiet stance. J Neurophysiol. 90:3774-3782, 2003

  3. Nozaki D, Kawashima N, Aramaki Y, Nakajima Y, Akai M, Yano H, Nakazawa K. Sustained muscle contractions maintained by autonomous neuronal activity within the human spinal cord. J Neurophysiol. 90:2090-2097, 2003

  4. Miyoshi T, Nozaki D, Sekiguchi H, Kimura T, Sato T, Komeda T,Nakazawa K, Yano H. Somatosensory graviception inhibits soleus H-reflex during erect posture in humans as revealed by parabolic flight experiment. Exp Brain Res. 150:109-113, 2003

  5. Miyoshi T, Shirota T, Yamamoto SI, Nakazawa K, Akai M. Lower limb joint moment during walking in water. Disability & Rehabilitation 25:1219-1223, 2003

  6. Kawashima N, Sone Y, Nakazawa K, Akai M, Yano H. Energy expenditure during walking with weight-bearing control (WBC) orthosis in thoracic level of paraplegic patients. Spinal Cord 41:506-510, 2003

  7. Kawashima N, Sekiguchi H, Miyoshi T, Nakazawa K, Akai M. Inhibition of the human soleus Hoffman reflex during standing without descending commands. Neurosci Lett. 347:25-28, 2003

  8. Sekiguchi H, Nakazawa K, Akai M. Recruitment gain of antagonistic motoneurons is higher during lengthening contraction than during shortening contraction in man. Neurosci Lett. 342:69-72, 2003

  9. Kimura T, Nozaki D, Nakazawa K, Akai M, Ohtsuki T. Gradual increment/decrement of isometric force modulates soleus stretch reflex response in humans. Neurosci Lett. 347:25-28, 2003

  10. Kimura T, Yamanaka K, Nozaki D, Nakazawa K, Miyoshi T, Akai M, Ohtsuki T. Hysteresis in corticospinal excitability during gradual muscle contraction and relaxation in humans. Exp Brain Res. 152:123-132, 2003

2002

  1. Yamanaka K, Kimura T, Miyazaki M, Kawashima N, Nozaki D, Nakazawa K, Yano H, Yamamoto Y. Human cortical activities during Go/NoGo tasks with opposite motor control paradigms. Exp Brain Res. 142:301-307, 2002

 2001

  1. Aramaki Y, Nozaki D, Masani K, Sato T, Nakazawa K, Yano H. Reciprocal angular acceleration of the ankle and hip joints during quiet standing in humans. Exp Brain Res. 136:463-473, 2001.

  2. Nakazawa K, Yamamoto SI, Ohtsuki T, Yano H, Fukunaga T. Neural control: novel evaluatin of stretch reflex sensitivity. Acta Physiol Scand. 172:257-268, 2001

-2000

  1. Yamamoto SI, Nakazawa K, Yano H, Ohtsuki T. Differential angle-dependent modulation of the long-latency stretch reflex responses in elbow flexion synergists. J Electromyography & Kinesiol. 10:135-142, 2000

  2. Kojima N, Nakazawa K, Yano H. Effects of limb loading on the lower-limb electromyographic activity during orthotic locomotion in a paraplegic patient. Neurosci Lett. 274:211-213, 1999

  3. Yamanaka K, Yamamoto SI, Nakazawa K, Yano H, Suzuki Y, Fukunaga T. The effects of long-term bed rest on H-reflex and motor evoked potential in the human soleus muscle during standing. Neurosci Lett. 266:101-104, 1999

  4. Kojima N, Nakazawa K, Yamamoto SI, Yano H. Phase-dependent electromyographic activity of the lower-limb muscles of a patient with clinically complete spinal cord injury during orthotic gait. Exp Brain Res. 120:139-142, 1998

  5. Nakazawa K, Yano H, Satoh H, Fujisaki I. Differences in stretch reflex responses of elbow flexor muscles during shortening, lengthening and isometric contractions. Eur J Appl Physiol. 77:395-400, 1998

  6. Yano H, Kaneko S, Nakazawa K, Yamamoto SI, Bettoh A. A new concept of dynamic orthosis for paraplegia: the weight bearing control (WBC) orthosis. Prothetics and Orthotics Int. 21:222-228, 1997

  7. Nakazawa K, Yamamoto SI, Yano H. Short- and long-latency reflex responses during different motor tasks in elbow flexor muscles. Exp Brain Res. 116:20-28, 1997

  8. Nozaki D, Nakazawa K, Yamamoto Y. Supraspinal effects on the fractal correlation in human H-reflex. Exp Brain Res. 112:112-118, 1996

  9. Nozaki D, Nakazawa K, Yamamoto Y. Fractal correlation in human H-reflex. Exp Brain Res. 105:402-410, 1995.

  10. Kawakami Y, Nakazawa K, Fujimoto T, Nozaki D, Miyashita M, Fukunaga T. Specific tension of elbow flexor and extensor muscles based on magnetic resonance imaging. Eur J Appl Physiol. 68:139-147, 1994

  11. Nakazawa K, Kawakami Y, Fukunaga T, Yano H, Miyashita M. Differences in activation patterns in elbow flexor muscles during isometric, concentric and eccentric contractions. Eur J Appl Physiol. 66:214-20, 1993
　

contact: knaka@rehab.go.jp