References
- Akagi, R., & Takahashi, H. (2013). Acute effect of static stretching on hardness of the gastrocnemius muscle. Medicine and Science in Sports and Exercise, 45, 1348–1354. doi:https://doi.org/10.1249/MSS.0b013e3182850e17
- Bercoff, J., Tanter, M., & Fink, M. (2004). Supersonic shear imaging: A new technique for soft tissue elasticity mapping. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 51, 396–409. doi:https://doi.org/10.1109/TUFFC.2004.1295425
- Blemker, S. S., & Delp, S. L. (2005). Three-dimensional representation of complex muscle architectures and geometries. Annals of Biomedical Engineering, 33, 661–673. doi:https://doi.org/10.1007/s10439-005-1433-7
- Boyce, D., & Brosky, J. A. (2008). Determining the minimal number of cyclic passive stretch repetitions recommended for an acute increase in an indirect measure of hamstring length. Physiotherapy Theory and Practice, 24, 113–120. doi:https://doi.org/10.1080/09593980701378298
- Cohen, J. (1988). Statistical power analysis for the behavioral sciences (2nd ed.). New York, NY: Lawrence Erlbaum Associates.
- Delp, S. L., Hess, W. E., Hungerford, D. S., & Jones, L. C. (1999). Variation of rotation moment arms with hip flexion. Journal of Biomechanics, 32, 493–501. doi:https://doi.org/10.1016/S0021-9290(99)00032-9
- Eby, S. F., Song, P., Chen, S., Chen, Q., Greenleaf, J. F., & An, K.-N. (2013). Validation of shear wave elastography in skeletal muscle. Journal of Biomechanics, 46, 2381–2387. doi:https://doi.org/10.1016/j.jbiomech.2013.07.033
- Ferber, R., Kendall, K. D., & McElroy, L. (2010). Normative and critical criteria for iliotibial band and iliopsoas muscle flexibility. Journal of Athletic Training, 45, 344–348. doi:https://doi.org/10.4085/1062-6050-45.4.344
- Fowles, J. R., Sale, D. G., & MacDougall, J. D. (2000). Reduced strength after passive stretch of the human plantarflexors. Journal of Applied Physiology, 89, 1179–1188. doi:https://doi.org/10.1152/jappl.2000.89.3.1179
- Gennisson, J. L., Cornu, C., Catheline, S., Fink, M., & Portero, P. (2005). Human muscle hardness assessment during incremental isometric contraction using transient elastography. Journal of Biomechanics, 38, 1543–1550. doi:https://doi.org/10.1016/j.jbiomech.2004.07.013
- Harvey, D. (1998). Assessment of the flexibility of elite athletes using the modified Thomas test. British Journal of Sports Medicine, 32, 68–70. doi:https://doi.org/10.1136/bjsm.32.1.68
- Jiroumaru, T., Kurihara, T., & Isaka, T. (2014). Establishment of a recording method for surface electromyography in the iliopsoas muscle. Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology, 24, 445–451. doi:https://doi.org/10.1016/j.jelekin.2014.02.007
- Kerrigan, D. C., Lee, L. W., Collins, J. J., Riley, P. O., & Lipsitz, L. A. (2001). Reduced hip extension during walking: Healthy elderly and fallers versus young adults. Archives of Physical Medicine and Rehabilitation, 82, 26–30. doi:https://doi.org/10.1053/apmr.2001.18584
- Kerrigan, D. C., Xenopoulos-Oddsson, A., Sullivan, M. J., Lelas, J. J., & Riley, P. O. (2003). Effect of a hip flexor-stretching program on gait in the elderly. Archives of Physical Medicine and Rehabilitation, 84, 1–6. doi:https://doi.org/10.1053/apmr.2003.50056
- Klein Horsman, M. D., Koopman, H. F. J. M., van der Helm, F. C. T., Prosé, L. P., & Veeger, H. E. J. (2007). Morphological muscle and joint parameters for musculoskeletal modelling of the lower extremity. Clinical Biomechanics, 22, 239–247. doi:https://doi.org/10.1016/j.clinbiomech.2006.10.003
- Koo, T. K., Guo, J.-Y., Cohen, J. H., & Parker, K. J. (2013). Relationship between shear elastic modulus and passive muscle force: An ex-vivo study. Journal of Biomechanics, 46, 2053–2059. doi:https://doi.org/10.1016/j.jbiomech.2013.05.016
- Krivickas, L. S., & Feinberg, J. H. (1996). Lower extremity injuries in college athletes: Relation between ligamentous laxity and lower extremity muscle tightness. Archives of Physical Medicine and Rehabilitation, 77, 1139–1143. doi:https://doi.org/10.1016/S0003-9993(96)90137-9
- Kusano, K., Nishishita, S., Nakamura, M., Tanaka, H., Umehara, J., & Ichihashi, N. (2017). Acute effect and time course of extension and internal rotation stretching of the shoulder on infraspinatus muscle hardness. Journal of Shoulder and Elbow Surgery, 26, 1782–1788. doi:https://doi.org/10.1016/j.jse.2017.04.018
- Magnusson, S. P., Aagard, P., Simonsen, E., & Bojsen-Møller, F. (1998). A biomechanical evaluation of cyclic and static stretch in human skeletal muscle. International Journal of Sports Medicine, 19, 310–316. doi:https://doi.org/10.1055/s-2007-971923
- Magnusson, S. P., Simonsen, E. B., Aagaard, P., & Kjaer, M. (1996). Biomechanical responses to repeated stretches in human hamstring muscle in vivo. The American Journal of Sports Medicine, 24, 622–628. doi:https://doi.org/10.1177/036354659602400510
- McNair, P. J., Dombroski, E. W., Hewson, D. J., & Stanley, S. N. (2001). Stretching at the ankle joint: Viscoelastic responses to holds and continuous passive motion. Medicine and Science in Sports and Exercise, 33, 354–358. doi:https://doi.org/10.1097/00005768-200103000-00003
- Miki, H., Sugano, N., Hagio, K., Nishii, T., Kawakami, H., Kakimoto, A., … Yoshikawa, H. (2004). Recovery of walking speed and symmetrical movement of the pelvis and lower extremity joints after unilateral THA. Journal of Biomechanics, 37, 443–455. doi:https://doi.org/10.1016/j.jbiomech.2003.09.009
- Nakamura, M., Ikezoe, T., Kobayashi, T., Umegaki, H., Takeno, Y., Nishishita, S., & Ichihashi, N. (2014). Acute effects of static stretching on muscle hardness of the medial gastrocnemius muscle belly in humans: An ultrasonic shear-wave elastography study. Ultrasound in Medicine & Biology, 40, 1991–1997. doi:https://doi.org/10.1016/j.ultrasmedbio.2014.03.024
- Nakamura, M., Ikezoe, T., Takeno, Y., & Ichihashi, N. (2013). Time course of changes in passive properties of the gastrocnemius muscle-tendon unit during 5 min of static stretching. Manual Therapy, 18, 211–215. doi:https://doi.org/10.1016/j.math.2012.09.010
- Nordez, A., Cornu, C., & McNair, P. (2006). Acute effects of static stretching on passive stiffness of the hamstring muscles calculated using different mathematical models. Clinical Biomechanics, 21, 755–760. doi:https://doi.org/10.1016/j.clinbiomech.2006.03.005
- Perron, M., Malouin, F., Moffet, H., & McFadyen, B. J. (2000). Three-dimensional gait analysis in women with a total hip arthroplasty. Clinical Biomechanics, 15, 504–515. doi:https://doi.org/10.1016/S0268-0033(00)00002-4
- Portney, L., & Watkins, M. (2000). Foundations of clinical research: Application to practice (2nd ed.). New Jersey: Prentice Hall Health.
- Roach, S. M., San Juan, J. G., Suprak, D. N., Lyda, M., Bies, A. J., & Boydston, C. R. (2015). Passive hip range of motion is reduced in active subjects with chronic low back pain compared to controls. International Journal of Sports Physical Therapy, 10, 13–20.
- Ryan, E. D., Beck, T. W., Herda, T. J., Hull, H. R., Hartman, M. J., Stout, J. R., & Cramer, J. T. (2008). Do practical durations of stretching alter muscle strength? A dose-response study. Medicine and Science in Sports and Exercise, 40, 1529–1537. doi:https://doi.org/10.1249/MSS.0b013e31817242eb
- Shrout, P. E., & Fleiss, J. L. (1979). Intraclass correlations: Uses in assessing rater reliability. Psychological Bulletin, 86, 420–428.
- Taylor, D. C., Dalton, J. D., Seaber, A. V., & Garrett, W. E. (1990). Viscoelastic properties of muscle-tendon units. The biomechanical effects of stretching. The American Journal of Sports Medicine, 18, 300–309. doi:https://doi.org/10.1177/036354659001800314
- Toft, E., Sinkjaer, T., Kålund, S., & Espersen, G. T. (1989). Biomechanical properties of the human ankle in relation to passive stretch. Journal of Biomechanics, 22, 1129–1132. doi:https://doi.org/10.1016/0021-9290(89)90214-5
- Tsukagoshi, R., Tateuchi, H., Fukumoto, Y., Akiyama, H., So, K., Kuroda, Y., … Ichihashi, N. (2015). Factors associated with restricted hip extension during gait in women after total hip arthroplasty. Hip International, 25, 543–548. doi:https://doi.org/10.5301/hipint.5000286
- Umegaki, H., Ikezoe, T., Nakamura, M., Nishishita, S., Kobayashi, T., Fujita, K., … Ichihashi, N. (2015). Acute effects of static stretching on the hamstrings using shear elastic modulus determined by ultrasound shear wave elastography: Differences in flexibility between hamstring muscle components. Manual Therapy, 20, 610–613. doi:https://doi.org/10.1016/j.math.2015.02.006
- Umehara, J., Hasegawa, S., Nakamura, M., Nishishita, S., Umegaki, H., Tanaka, H., … Ichihashi, N. (2017). Effect of scapular stabilization during cross-body stretch on the hardness of infraspinatus, teres minor, and deltoid muscles: An ultrasonic shear wave elastography study. Musculoskeletal Science & Practice, 27, 91–96. doi:https://doi.org/10.1016/j.math.2016.10.004
- Watt, J. R., Jackson, K., Franz, J. R., Dicharry, J., Evans, J., & Kerrigan, D. C. (2011). Effect of a supervised hip flexor stretching program on gait in elderly individuals. PM & R, 3, 324–329. doi:https://doi.org/10.1016/j.pmrj.2010.11.012
- Weppler, C. H., & Magnusson, S. P. (2010). Increasing muscle extensibility: A matter of increasing length or modifying sensation? Physical Therapy, 90, 438–449. doi:https://doi.org/10.2522/ptj.20090012