Vol. 19 No. 2 2010 297 301 H Λ1 Λ1 Λ1 Λ1 Λ1 Λ1 8 Treadmill Walking TW 20% Body Weight Supported Treadmill Walking BWSTW 2 4 km/h10 H M H/M IEMG %IEMG TW BWSTW H/M BWSTW %IEMG TW BWSTW %IEMG H/M H/M ff 20% Body Weight Supported Treadmill Training BWSTT 1) BWSTT 2 4;6;10 11) Hesse 2) 7 BWSTT Bobath BWSTT Visintin 3) 100BWSTT Werner 4) BWSTT BWSTT Λ1 701-0193 288 E-Mail: osaka@mw.kawasaki-m.ac.jp 297
298 5) BWSTT BWSTT BWSTT Werner 4) Modified Ashworth Scale MAS ff H 7;8) ff H BWSTT 1 8 3 5 24.9±2.2 2 T650MSTreadmill Walking TWBIODEX BDX-UWSZ 20% Body Weight Supported Treadmill Walking BWSTW 2 BWSTW 1 TW BWSTW 4 km/h 10 H M Hmax/Mmax ratio H/M 1 BWSTW M H Neuropack ± H 0.2ms 1Hz 16TWBWSTW H/M H/M / H/M 100 Vital Recorder 2 1kHz Blue Sensor Ambu 2.5cm BIMUTAS II 20 500Hz 50 60Hz Integrated ElectroMyoGram IEMG 2 100% %IEMG EMG 1 9) 1 10% 0 100% 10%%IEMG EMG
H 299 1 4 9 3 1 3 %IEMG 2 1 3 SPSS for Windows Ver.15J H/M TW BWSTW H/M %IEMG Wilcoxon 5% H/M TW 0.38±0.230.25±0.17 BWSTW 0.32±0.180.28±0.17 TW BWSTW TW BWSTW H/M %IEMG 2 3 TW BWSTW 0 10%51 60% 2 3 %IEMG MVC IEMG %IEMG 100% 0 100 %IEMG MVC IEMG %IEMG 100% 0 100 TW BWSTW 21 30%41 50%51 60% %IEMG TWBWSTW BWSTW TW H/M H ff ff 12) H ff a 13) BWSTW TW ff BWSTW TW %IEMG 1) BWSTW TW BWSTW %IEMG BWSTW TW 1) 59.9±2.9% 20%57.7±2.9% BWSTW Aaslund 14) BWSTW
300 BWSTW TW H/M Lavoie 15) H/M EMG H BWSTW TW H/M BWSTWTW Hesse 6) 18 EMG Werner 4) 15 2 MAS BWSTW TW ff BWSTW ff H BWSTW 20% BWSTT H 20% H/M ff 20% 131283 2902004 2Hesse S, Bartelt C, Jahnke MT, Schaffrin A, Baake P, Malezic M andmauritz KHTreadmill training with partial body weight support comparedwith physiotherapy in nonambulatory hemiparetic patients. Stroke, 26, 976 981, 1995. 3Visintin M, Barbeau H, Korner-Bitensky N andmayo NEA new approach to retrain gait in stroke patients through body weight support andtreadmill stimulation. Stroke, 29, 1122 1128, 1998. 4Werner C, Frankenberg SV, Treig T, KonradM andhesse STreadmill training with partial body weight support andan electromechanical gait trainer for restoration of gait in subacute stroke patientsa randomized crossover study. Stroke, 33, 2895 2901, 2002. 5MedReha, 43, 1 72004 6Hesse S, KonradM anduhlembrock DTreadmill walking with partial body weight support versus floor walking in hemiparetic subject. Archives of Physical Medicine and Rehabilitation, 80, 421 427, 1999. 7Brain and Nerve601409 14142008 8Pizzi A, Carlucci G, Falsini C, Verdesca S and Grippo AEvaluation of upper-limb spasticity after stroke a clinical andneurophysiologic study. Archives of Physical Medicine and Rehabilitation, 86, 410 415, 2005. 9wavelet 2756 652006 10Proras EJ, Holmes SA, Qureshy H, Johnson A, Lee D andsherwoodamsupportedtreadmill ambulation training after spinal cordinjurya pilot study. Archives of Physical Medicine and Rehabilitation, 82, 825 831, 2001. 11
H 301 5 20 222005 129 1 19 2002 1353241 2472003 14AaslundMK andmoe-nilssen RTreadmill walking with body weight support effect of treadmill, harness andbody weight support systems. Gait and Posture, 28, 303 308, 2008. 15Lavoie BA, Devanne H andcapaday CDifferential control of reciprocal inhibition during walking versus postural andvoluntary motor tasks in humans. Journal of Neurophysiology, 78, 429 438, 1997. 211116 Effect of Body Weight Supported Walking on H-reflex of Soleus Muscle and Electromyogram of Lower Extremity Hiroshi OSAKA, Kenichi KOBARA, Daisuke FUJITA, Hiroshi ISHIDA, Yosuke YOSHIMURA andsusumu WATANABE (AcceptedNov. 16, 2009) Key words : H-reflex, body weight support, electromyogram Abstract Eight healthy subjects walked on a treadmill (TW) unaided and then walkedon a treadmill with 20% of their body weight supported(bwstw). The maximum amplitude ratio of H-wave to M-wave of the soleus muscleh/m ratiowas measuredbefore andafter both TW andbwstw. Furthermore, surface electromyogram of the tibialis anterior andsoleus muscle was measuredandcalculated%iemg during TW andbwstw; the results were compared. The H/M ratio showeda significant decrease before andafter both TW andbwstw. The change rate before andafter walking was not significant between TW andbwstw. In BWSTW, %IEMG of the tibialis anterior showeda significant decrease during the initial contact phase comparedwith that in TW. %IEMG of the soleus muscle showeda significant decrease during the terminal stance phase. The decrease in the ratio of soleus muscle H/M before andafter BWSTW was similar to that in TW. Because the effect of reciprocal inhibition to the soleus muscle was demonstrated in both BWSTW and TW, this indicates that BWSTW might be as effective in TW patients who have the spasticity inthe triceps surae. Correspondence to : Hiroshi OSAKA Department of Rehabilitation Faculty of Health Science andtechnology Kawasaki University of Medical Welfare Kurashiki, 701-0193, Japan E-Mail: osaka@mw.kawasaki-m.ac.jp (Kawasaki Medical Welfare Journal Vol.19, No.2, 2010 297 301)