対象と方法 ± ±5 cm 54±7 kg max max 30 max 40 max 60 max 80 max 100 max

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なつきあさぶき
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1 Online publication October 8, 2010 原著第 15 回医用近赤外線分光法研究会最大位までの多段階ストレッチングが筋の循環に与える影響要旨 : 10 MG SOL OxyHb DeoxyHb TotalHb B TotalHb MG max p<0.05 SOL 40 max p<0.05 SOL 40 max MG 80 max J Jpn Coll Angiol, 2010, 50: Key words: calf muscle stretching, blood volume, medial gastrocnemius and soleus muscle 序言 THE JOURNAL of JAPANESE COLLEGE of ANGIOLOGY Vol. 50 No

05 SOL 40 max MG 80 max J Jpn Coll Angiol, 2010, 50: 483 488 Key words: calf muscle stretching, blood volume, medial

2 対象と方法 ± ±5 cm 54±7 kg max max 30 max 40 max 60 max 80 max 100 max max max 100 max 3 MG SOL GE Healthcare Japan Vivid7pro OxyHb DeoxyHb TotalHb NIRO200 MG 30 SOL 60 4 cm MG 0.6±0.1 cm SOL 0.8±0.1 cm OxyHb Deoxy- Hb TotalHb = exp{-(h/a 1) 2 }-A 2G(a,b) G(a,b) A 1 A 2 a b 6 OxyHb DeoxyHb TotalHb 5 B GE Healthcare Japan Vivid7pro = ( /2 2 π ± one-way ANOVA Dunnet 結果 64.6± ±1.5 Table 1 MG SOL p<0.05 = / 100 MG 187 SOL 139 MG p<0.05 MG SOL OxyHb DeoxyHb TotalHb Fig. 1 MG OxyHb TotalHb 40 max 80 max p<0.05 DeoxyHb 60 max 100 max p<0.05 SOL DeoxyHb TotalHb 484 脈管学 Vol. 50, 2010

Healthcare Japan Vivid7pro OxyHb DeoxyHb TotalHb NIRO200 MG 30 SOL 60 4 cm MG 0.6±0.1 cm SOL 0.8±0.

3 6 Table 1 Fascicle length of MG and SOL at comfortable maximal position without pain and maximal dorsiflexion Rest Comfortable maximal position without pain Maximal position MG 42.6 ± ± 3.6 * 78.1 ± 3.1 * SOL 37.2 ± ± 2.8 * 51.8 ± 3.0 * mean ± SE, * p<0.05 vs. rest, (mm) Figure 1 Muscle oxygenation in MG and SOL during passive dorsiflexion to maximal extent. * p<0.05, ** p<0.01 vs. baseline. 40 max p<0.05 OxyHb Fig. 2 考察 MG 80 max TotalHb OxyHb SOL 40 max TotalHb DeoxyHb 2 脈管学 Vol. 50,

05 vs. rest, (mm) Figure 1 Muscle oxygenation in MG and SOL during passive dorsiflexion to maximal extent. * p<0.05, ** p<0.01 vs.

4 7 TotalHb OxyHb DeoxyHb OxyHb DeoxyHb 8 TotalHb OxyHb DeoxyHb 2 2 MG TotalHb OxyHb MG 80 max MG TotalHb MG SOL 40 max MG TotalHb 80 max TotalHb MG SOL TotalHb 1 MG 187 SOL 139 MG Figure 2 Popliteal artery blood flow during incremental stretching to maximal extent. 1, 10 Poiseuille Q=πr 4 /8ηlΔP Q r η l P 4 R=P/πr 4 ΔP R 4 MG MG SOL MG SOL DeoxyHb MG 60 max 100 max SOL 30 max MG TotalHb OxyHb SOL TotalHb OxyHb MG SOL Deoxy- Hb 486 脈管学 Vol. 50, 2010

flow during incremental stretching to maximal extent.

5 6 11 MG TA 結論 SOL 40 max MG 80 max 謝辞文献 1 Poole DC, Musch TI, Kindig CA: In vivo microvascular structural and functional consequences of muscle length changes. Am J Physiol, 1997, 272: H Kagaya A, Muraoka Y: Muscle architecture and its relationship to muscle circulation. Int J Sport Health Sci, 2005, 3: Integrative study of circulation regulation during exercise; contribution to developing optimal program for health promotion and physical fitness though sports and exercise, 2006, Nakao M, Segal SS: Muscle length alters geometry of arterioles and venules in hamster retactor. Am J Physiol, 1995, 268: H336 H Niwayama M, Yamamoto K, Kohata D et al: A 200-channel imaging system of muscle oxygenation using CW near-infrared spectroscopy (special issue on measurements and visualization technology of biological information). IEICE Trans Inf Syst, 2002, E85-D: Homma S, Kagaya A: Oxygen delivery and utilization in working muscles during 1-min static handgrip exercise at varied intensity. J Exerc Sci, 1998, 8: Antegrade Retrograde Supinski GS, Bark H, Guanciale A et al: Effect of alterations in muscle fiber length on diaphragm blood flow. J Appl Physiol, 1986, 60: Cui J, Blaha C, Moradkhan R et al: Muscle sympathetic nerve activity responses to dynamic passive muscle stretch in humans. J Physiol, 2006, 576: Green D, Cheetham C, Reed C et al: Assessment of brachial artery blood flow across the cardiac cycle: retrograde flows during cycle ergometry. J Appl Physiol, 2002, 93: 脈管学 Vol. 50,

4 Integrative study of circulation regulation during exercise; contribution to developing optimal program for health promotion and physical fitness though sports and exercise, 2006, 58 64.

6 Effect of Calf Muscle Incremental Stretching to Maximal Extent on Peripheral Circulation Fumiko Ohmori, 1 Shizuyo Okuyama, 2 Yoshiho Muraoka, 3 Aki Mori, 4 Sakiko Suzuki, 4 Mayumi Mizumura, 5 and Atsuko Kagaya 1 1 Resarch Institute of Physical Fitness, Japan Women s College of Physical Education, Tokyo, Japan 2 Institute of Physical Education, Keio University, Kanagawa, Japan 3 School of Humanities, Meisei University, Tokyo, Japan 4 Graduate school of Humanities and Science, Ochanomizu University, Tokyo, Japan 5 Department of Performing Arts, Graduate school of Humanities and Science, Ochanomizu University, Tokyo, Japan Key words: calf muscle stretching, blood volume, medial gastrocnemius and soleus muscle The purpose of this study was to clarify the effect of calf muscle incremental stretching to the maximal extent on calf muscle blood volume (NIRS) and popliteal artery blood flow (the Doppler ultrasound method). The popliteal artery blood flow did not change significantly during incremental stretching. The total Hb of the medial gastrocnemius (MG) significantly (p<0.05) decreased above the range of 80% of the maximally extended position, whereas it significantly (p<0.05) increased in the soleus muscle (SOL) above 40% of the maximum during incremental stretching. In conclusion, the calf muscle blood volume during incremental stretching began to change at 40% of the maximally stretched position in the SOL and 80% of the maximum in the MG, increasing in the former and decreasing in the latter muscles, without a significant change in the upstream blood flow. (J Jpn Coll Angiol, 2010, 50: ) Online publication October 8, 脈管学 Vol. 50, 2010

Humanities, Meisei University, Tokyo, Japan 4 Graduate school of Humanities and Science, Ochanomizu University, Tokyo, Japan 5 Department of Performing Arts, Graduate school of Humanities and

Vol. No. Honda, et al.,

Vol. No. Honda, et al., A Study of Effects of Foot Bath before Exercise on Fall Prevention Yoko Honda Yoko Aso Aki Ibe Megumi Katayama Tomoko Tamaru Key Words fall prevention, foot bath, elderly, fall prevention programs Honda,

対 象 と 方 法 ± ±5 cm 54±7 kg max max 30 max 40 max 60 max 80 max 100 max

対象と方法 ± ±5 cm 54±7 kg max max 30 max 40 max 60 max 80 max 100 max