In this study, the muscle strength and endurance of the lumbar at flexion and extension were determined using an isokinetic muscle strength meter (Biodex) in patients with chronic lumbar go (10 male and 10 females), and the changes in muscle strength and endurance of the lumbar at flexion and extension after application of Y-shaped sacrospinalis muscle taping, typically used for patient with lumbar go, were studied. In addition, the sacrospinalis muscle taping of a different shape (I-shaped taping) was applied bilaterally centering on the spine, and the muscle strength and endurance of the lumbar at flexion and extension were determined and compared with those before taping. In addition, the results after application of Y-shaped taping and I-shaped taping were also compared. 1. The extensor muscle strength of the lumbar at loading of $60^{circ}$/sec before application of kinesio Taping and after application of Y-shaped taping showed the level of significance (p<.05). The flexor muscle strength of the lumbar at loading of $60^{circ}$/sec before application of kinesio taping and after application of Y-shaped taping did not show the level of significance. 2. The flexor muscle endurance of the lumbar at loading of $90^{circ}$/sec before application of kinesio Taping and application of Y-shaped taping did not show the level of significance. The extensor muscle endurance of the lumbar at loading of $90^{circ}$/sec before application of kinesio Taping and after application of Y-shaped taping did not show the level of significance. 3. The extensor muscle strength of the lumbar at loading of $60^{circ}$/sec before application of kinesio Taping and after application of I-shaped taping showed the level of significance (p<.05). The flexor muscle strength of the lumbar at loading of $60^{circ}$/sec before application of kinesio Taping and after application of I-shaped taping showed the level of significance (p<.05). 4. The flexor muscle endurance of the lumbar at loading of $90^{circ}$/sec before application of kinesio taping and after application of I-shaped taping showed the level of significance. The extensor muscle strength of the lumbar at loading of $90^{circ}$/sec before application of kinesio Taping and after application of I-shaped taping showed the level of significance (p<.05). 5. In comparison between after application of Y-shaped taping and after application of I-shaped taping, the flexor muscle strength of the lumbar at loading of $60^{circ}$/sec did not show the level of significance. In comparison between after application of Y-shaped taping and after application of I-shaped taping, the extensor muscle strength of the lumbar at loading of $60^{circ}$/ sec showed the level of significance (p<.05). 6. In comparison between after application of Y-shaped taping and after application of I-shaped taping, the flexor muscle strength of the lumbar at loading of $90^{circ}$/sec did not show the level of significance. In comparison between after application of Y-shaped taping and after application of I-shaped taping, the extensor muscle strength of the lumbar at loading of $90^{circ}$/sec did not showed the level of significance (p<.05).