The effects of the angles of the knee and heel-off on the muscle activity during a bridge exercise

Title & Authors
The effects of the angles of the knee and heel-off on the muscle activity during a bridge exercise
Kim, Byeong-jo; Lee, Su-kyoung; Lee, Jung-hoon; Kwon, Hae-yeon;

Abstract
PURPOSE: The purpose of this study is to investigate the effects of the angles of the knee and heel-off on the muscle activity during a bridge exercise. METHODS: 15 healthy adult men and women with the balance ability and joint working range required for performing a bridge exercise participated in this study, in which $\small{120^{\circ}}$, $\small{90^{\circ}}$ and $\small{60^{\circ}}$ angles of the knee-flexion and heel-off were applied during the bridge exercise. RESULTS: Our data showed that there were significant differences in muscle activities of elector spinae and rectus abdominis when $\small{120^{\circ}}$ and $\small{60^{\circ}}$ angles of the knee were applied, of internal oblique when $\small{120^{\circ}}$ and $\small{60^{\circ}}$ were applied, and external oblique when $\small{90^{\circ}}$ and $\small{60^{\circ}}$ were applied. When heel-off was applied, there were significant differences in muscle activities of elector spinae and rectus abdominis when $\small{120^{\circ}}$ and $\small{60^{\circ}}$ were applied, of internal oblique when $\small{120^{\circ}}$ and $\small{60^{\circ}}$ were applied, and external oblique when $\small{90^{\circ}}$ and $\small{60^{\circ}}$ were applied. CONCLUSION: In this study on an application of heel-off to the bridge exercise, we showed that the effect of the angles of the knee on the muscle activities of elector spinae, rectus abdominis, internal oblique and external oblique were all similar to the regular bridge exercise, but overall muscle activities were increased with heel-off when compared with the regular bridge exercise.
Keywords
Bridging exercise;Heel off;Knee angle;Muscle activity;
Language
English
Cited by
1.
Changes in the activity of trunk and hip extensor muscles during bridge exercises with variations in unilateral knee joint angle, Journal of Physical Therapy Science, 2016, 28, 9, 2537
References
1.
Akuthota V, Nadler SF. Core strengthening. Arch Phys Med Rehabil. 2004;85(1):86-92.

2.
Arokoski JP, Valta T, PT, Airaksinen O et al. Back and abdominal muscle function during stabilization exercises. Arch Phys Med Rehabil. 2001;82(8):1089-98.

3.
Bjerkefors A, Ekblom MM, Josefsson K et al. Deep and superficial abdominal muscle activation during trunk stabilization exercises with and without instruction to hollow. Man Ther. 2010;15(5):502-7.

4.
Cram JR, Kasman GS, Holtz J. Introduction to surface electromyography. Gaithersburg. Aspen Publishers. 1998.

5.
Hodges PW, Gandevia SC. Activation of the human diaphragm during a repetitive postural task. J Physiol. 2000; 522(1):165-75.

6.
Hodges PW, Moseley GL. Pain and motor control of the lumbopelvic region: effect and possible mechanisms. J Electromyoqr Kinesiol. 2003;13:361-70.

7.
Hong YJ, Kwon OY, Lee CH, et al. Effect of the support surface condition on muscle activity of abdominalis and erector spinae during bridging exercises. Phys Ther Korea. 2010;17(4):16-25.

8.
Jeon HY. The effects of a bridging exercise on body shape changes and foot pressure distribution. Doctor's Degree. Daegu University. 2010.

9.
Kim KH, Park RJ, Jang JH, et al. The effect of trunk muscle activity on bridging exercise accoding to the knee joint angle. The Korean Society of Physical Medicine. 2010;5(3):405-412.

10.
Lee SK, Moon DC, Cho HR, et al. Effects of trunk and neck extensor muscle activity on the bridging exercise according to knee joint angle. J Phys Ther Sci. 2012:24(11):363-5.

11.
Lee SK, Park DJ, et al. The effects of knee joint and hip abduction angles on the activation of cervical and abdominal muscles during bridging exercises. J Phys Ther Sci. 2013:25(7):857-60.

12.
Park YS. The effect of affected side trunk muscle activity in hemiplegia during asymmetrical bridging exercise with each different knee joint angles. The Graduate Shool of Health Science. Catholic University of Daegu. 2012.

13.
Stevens VK, Bouche KG, Mahieu NN et al. Trunk muscle activity in healthy subjects during bridging stabilization exercises. BMC Musculoskeletal Disorders. 2006;7(9):75-82.

14.
Stevens VK, Coorevits PL, Bouche KG et al. The influence of specific training on trunk muscle recruitment patterns in healthy subjects during stabilization exercises. Man Ther. 2007;12(3):271-9.