Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30124
Neuromuscular Control and Performance during Sudden Acceleration in Subjects with and without Unilateral Acute Ankle Sprains

Authors: M. Qorbani

Abstract:

Neuromuscular control of posture as understood through studies of responses to mechanical sudden acceleration automatically has been previously demonstrated in individuals with chronic ankle instability (CAI), but the presence of acute condition has not been previously explored specially in a sudden acceleration. The aim of this study was to determine neuromuscular control pattern in those with and without unilateral acute ankle sprains. Design: Case - control. Setting: University research laboratory. The sinker–card protocol with surface translation was be used as a sudden acceleration protocol with study of EMG upon 4 posture stabilizer muscles in two sides of the body in response to sudden acceleration in forward and backward directions. 20 young adult women in two groups (10 LAS; 23.9 ± 2.03 yrs and 10 normal; 26.4 ± 3.2 yrs). The data of EMG were assessed by using multivariate test and one-way repeated measures 2×2×4 ANOVA (P< 0.05). The results showed a significant muscle by direction interaction. Higher TA activity of left and right side in LAS group than normal group in forward direction significantly be showed. Higher MGR activity in normal group than LAS group in backward direction significantly showed. These findings suggest that compared two sides of the body in two directions for 4 muscles EMG activities between and within group for neuromuscular control of posture in avoiding fall. EMG activations of two sides of the body in lateral ankle sprain (LAS) patients were symmetric significantly. Acute ankle instability following once ankle sprains caused to coordinated temporal spatial patterns and strategy selection.

Keywords: Neuromuscular response, sEMG, Lateral Ankle Sprain, posture.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1112228

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 681

References:


[1] Lynch, S. A., & Renstrom, P. (1999). Treatment of acute lateral ankle ligament ruptures in the athlete- Conservative versus surgical treatment. Sports Medicine, 27(1), 61-71.
[2] Garrick JG, Requa RK. The epidemiology of foot and ankle injuries in sports. Clin Sports Med. 1988; 7:29–36.
[3] Hertel J. Functional anatomy, pathomechanics, and pathophysiology of lateral ankle instability. J Athl Train. 2002; 37:364–375.
[4] McKay GD, Goldie PA, Payne WR, Oakes BW. Ankle injuries in basketball: injury rate and risk factors. Br J Sports Med. 2001; 35:103– 108.
[5] Freeman MA, Dean MR, Hanham IW. The etiology of functional instability of the foot. J Bone Joint Surg Br. 1965; 47:678–685.
[6] Gribble PA, Hertel J, Denegar CR, Buckley WE. The effects of fatigue and chronic ankle instability on dynamic postural control. J Athl Train. 2004; 39:321–329.
[7] Caulfield BM, Garrett M. Functional instability of the ankle: differences in patterns of ankle and knee movement prior to and post landing in a single leg jump. Int J Sports Med. 2002; 23:64–68.
[8] Hertel J, Olmsted-Kramer LC. Deficits in time-to-boundary measures of postural control with chronic ankle instability. Gait Posture. 2007; 25:33–39.
[9] Freeman MAR. Instability of the foot after injuries to the lateral ligament of the ankle. J Bone Joint Surg Br. 1965; 47:669–677.
[10] Freeman MAR, Wyke B. Articular contributions to limb muscle reflexes: the effects of partial neurectomy of the knee joint on postural reflexes. Br J Surg. 1966; 53:61–68.
[11] Freeman MAR, Wyke B. The innervation of the ankle joint: an anatomical and histological study in the cat. Acta Anat (Basel). 1967; 68:321–333.
[12] Freeman MAR, Wyke BD. Articular reflexes at the ankle joint: an electromyographic study of normal and abnormal influences of anklejoint mechanoreceptors upon reflex activity in the leg muscles. Br J Surg. 1967; 54:990–1001.
[13] Lephart SM, Warner JP, Borsa PA, Fu FH. Proprioception of the shoulder joint in healthy, unstable and surgically repaired shoulders. J Shoulder Elbow Surg. 1994; 3:371–380.
[14] Lephart SM, Kocher MS, Fu FH. Proprioception following ACL reconstruction. J Sport Rehabil. 1992; 1:186–196.
[15] Lentell, R. 1990. The relationship between muscle function and ankle stability. Journal of Orthopedic Sports and Physical Therapy 11: 605- 611.
[16] Bullock-Saxton JE, Janda V, Bullock MI. The influence of ankle sprain injury on muscle activation during hip extension. Int J Sports Med. 1994; 15:330–334.
[17] Evans T, Hertel J, Sebastianelli W. Bilateral deficits in postural control following lateral ankle sprain. Foot Ankle Int. 2004; 25:833–839.
[18] Horak F, Nashner L. Central programming of postural movements: adaptation to altered support-surface configurations. J Neurophysiol 1986; 55(6):1369–81.
[19] Docherty CL, Gansneder BM, Arnold BL, Hurwitz SR. Development and reliability of the Ankle Instability Instrument. J Athl Train. 2006; 41:154– 158.
[20] Retrieved from www.seniam.org.
[21] Retrieved from www.Vicon.com.
[22] Mansfield A, Peters AL, Liu BA, Maki BE. A perturbation-based balance training program for older adults: study protocol for a randomized controlled trial. BMC Geriatr. 2007; 7: 12.
[23] Mansfield A, Peters AL, Liu BA, Maki BE. Effect of a Perturbation- Based Balance Training Program on Compensatory Stepping and Grasping Reactions in Older Adults: A Randomized Controlled Trial. PHYS THER. 2010; 90: 476-491.
[24] Nashner LM, Cordo PJ. Relation of automatic postural responses and reaction-time voluntary movements of human leg muscles. Exp Brain tLT. 1981; 43: 395-405.
[25] Plisky PJ, Rauh MJ, Kaminski TW, Underwood FB. Star Excursion Balance Test as a predictor of lower extremity injury in high school basketball players. J Orthop Sports Phys Ther. 2006; 36(12): 911–919.
[26] Hwang S. The Balance Recovery Mechanisms Against Unexpected Forward Perturbation. Annals of Biomedical Engineering. 2009: 37: 8: 1629–1637.
[27] McCollum G, Horak FB, Nashner LM. Parsimony in neural calculations for postural movement. In: Bloedel J, Dichgans J, Precht Worlds. Springer-Verlag; 1984:52-66.
[28] Horak FB, Henry SM, Shumway-Cook A. Postural Perturbations: New Insights for Treatment of Balance Disorders. PHYS THER. 1997; 77:517-533.
[29] Nashner L.M, G McCollum. The Organization of human postural movements: A formal basis and Experimental Synthesis. The behavioral and brain sciences. 1985.8, 135-172.
[30] Macaluso A, Nimmo M, Foster J, Cockburn M, McMillan N, Vito G.Contractile Muscle Volume and Agonist/Antagonist Coactivation Account for Differences in Torque between Young and Older Women. Muscle Nerve. 2002: 25: 858–863.
[31] Okada S, Hirakawa K, Takada Y, Kinoshita H. Age-related differences in postural control in humans in response to sudden deceleration generated by postural disturbance. Eur J Appl. Physiol. 2001: 18: 10-18.
[32] Pijnappels M, Bobbert MF, van Dieen JH. EMG modulation in anticipation of a possible trip during walking in young and older adults. J of Electromyography and Kinesiol 16 .2006: 137–143.