Selective Muscle Activation With Visual Electromyographic Biofeedback During Scapular Posterior Tilt Exercise in Subjects With Round-Shoulder Posture
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
The purpose of this study was to investigate the effects of visual electromyography (EMG) biofeedback on the EMG activity of the lower trapezius (LT), serratus anterior (SA), and upper trapezius (UT) muscles, the LT/UT and SA/UT EMG activity ratios, and the scapular upward rotation angle during scapular posterior tilting exercise (SPTE). Twenty-four subjects with round-shoulder posture participated in this study. The EMG activities of the LT, SA, and UT were collected during SPTE both without and with visual EMG biofeedback. The scapular upward rotation angle was measured at the baseline, after SPTE without visual EMG biofeedback, and after SPTE with visual EMG biofeedback. The LT, SA, and UT EMG activities, and the LT/UT and SA/UT EMG activity ratios were analyzed by paired t-test. The scapular upward rotation angle was statistically analyzed using one-way repeated analysis of variance. If a significant difference was found, a Bonferroni correction was performed (p=.05/3=.017). The EMG activities of LT and SA significantly increased, and the EMG activity of UT significantly decreased during SPTE with visual EMG biofeedback compared to SPTE without visual EMG biofeedback (p<.05). In addition, the LT/UT and SA/UT EMG activity ratios significantly increased during SPTE with visual EMG biofeedback compared to SPTE without visual EMG biofeedback (p<.05). Significant increases were found in the scapular upward rotation angle after SPTE without and with visual EMG biofeedback compared to baseline (p<.017), and no significant differences were observed in the scapular upward rotation angle between SPTE without and with visual EMG biofeedback. In conclusion, SPTE using visual EMG biofeedback may be an effective method for increasing LT and SA activities while reducing UT activity.
Abstract
The purpose of this study was to investigate the effects of visual electromyography (EMG) biofeedback on the EMG activity of the lower trapezius (LT), serratus anterior (SA), and upper trapezius (UT) muscles, the LT/UT and SA/UT EMG activity ratios, and the scapular upward rotation angle during scapular posterior tilting exercise (SPTE). Twenty-four subjects with round-shoulder posture participated in this study. The EMG activities of the LT, SA, and UT were collected during SPTE both without and with visual EMG biofeedback. The scapular upward rotation angle was measured at the baseline, after SPTE without visual EMG biofeedback, and after SPTE with visual EMG biofeedback. The LT, SA, and UT EMG activities, and the LT/UT and SA/UT EMG activity ratios were analyzed by paired t-test. The scapular upward rotation angle was statistically analyzed using one-way repeated analysis of variance. If a significant difference was found, a Bonferroni correction was performed (p=.05/3=.017). The EMG activities of LT and SA significantly increased, and the EMG activity of UT significantly decreased during SPTE with visual EMG biofeedback compared to SPTE without visual EMG biofeedback (p<.05). In addition, the LT/UT and SA/UT EMG activity ratios significantly increased during SPTE with visual EMG biofeedback compared to SPTE without visual EMG biofeedback (p<.05). Significant increases were found in the scapular upward rotation angle after SPTE without and with visual EMG biofeedback compared to baseline (p<.017), and no significant differences were observed in the scapular upward rotation angle between SPTE without and with visual EMG biofeedback. In conclusion, SPTE using visual EMG biofeedback may be an effective method for increasing LT and SA activities while reducing UT activity.
참고문헌 (27)
- Arlotta M, "Selective recruitment of the lower fibers of the trapezius muscle", J Electromyogr Kinesiol, 21(3), pp.403~410 (2011)[DOI]
- Cools AM, "Trapezius activity and intramuscular balance during isokinetic exercise in overhead athletes with impingement symptoms", Scand J Med Sci Sports, 17(1), pp.25~33 (2007)
- Cools AM, "Rehabilitation of scapular muscle balance: Which exercises to prescribe?", Am J Sports Med, 35(10), pp.1744~1751 (2007)
- Criswell E, "Cram’s Introduction to Surface Electromyography. 2nd ed. Sudlbury", pp.289~299 (2011), Jones and Bartlett Publishers
- Ekstrom RA, "Surface electromyographic analysis of exercises for the trapezius and serratus anterior muscles", J Orthop Sports Phys Ther, 33(5), pp.247~258 (2003)
- Ha SM, "Comparison of electromyographic activity of the lower trapezius and serratus anterior muscle in different arm -lifting scapular posterior tilt exercises", Phys Ther Sport, 13(4), pp.227~232 (2012)[DOI]
- Holtermann A, "The use of EMG biofeedback for learning of selective activation of intra-muscular parts within the serratus anterior muscle: A novel approach for rehabilitation of scapular muscle imbalance", J Electromyogr Kinesiol, 20(2), pp.359~365 (2010)[DOI]
- Holtermann A, "Selective activation of neuromuscular compartments within the human trapezius muscle", J Electromyogr Kinesiol, 19(5), pp.896~902 (2009)[DOI]
- Huang HY, "EMG biofeedback effectiveness to alter muscle activity pattern and scapular kinematics in subjects with and without shoulder impingement", J Electromyogr Kinesiol, 23(1), pp.267~274 (2013)[DOI]
- 전용진, "푸시업플러스 시 근전도 바이오피드백을 이용한 전거근의 선택적 강화", 한국전문물리치료학회지, 18(1), pp.1~8 (2011), 한국전문물리치료학회
- Kendall FP, "Muscles: Testing and function with posture and pain", Williams & Wilkins, pp.330~335 (2005)
- Lee JH, "The effect of scapular posterior tilt exercise, pectoralis minor stretching, and shoulder brace on scapular alignment and muscles activity in subjects with round-shoulder posture", J Electromyogr Kinesiol, 25(1), pp.107~114 (2015)[DOI]
- Lim OB, "Effect of selective muscle training using visual EMG biofeedback on infraspinatus and posterior deltoid", J Hum Kinet, 44, pp.83~90 (2014)[DOI]
- Ludewig PM, "Shoulder impingement: Biomechanical considerations in rehabilitation", Man Ther, 16(1), pp.33~39 (2011)[DOI]
- Ludewig PM, "Alterations in shoulder kinematics and associated muscle activity in people with symptoms of shoulder impingement", Phys Ther, 80(3), pp.276~291 (2000)
- Ludewig PM, "Relative balance of serratus anterior and upper trapezius muscle activity during push-up exercises", Am J Sports Med, 32(2), pp.484~493 (2004)
- Ludewig PM, "The association of scapular kinematics and glenohumeral joint pathologies", J Orthop Sports Phys Ther, 39(2), pp.90~104 (2009)[DOI]
- Magee DJ, "Orthopedic Physical Assessment", pp.987~1001 (2008), Saunders
- Nijs J, "Scapular positioning in patients with shoulder pain: A study examining the reliability and clinical importance of 3 clinical tests", Arch Phys Med Rehabil, 86(7), pp.1349~1355 (2005)
- Page P, "Assessment and Treatment of Muscle Imbalance: The janda approach", pp.67~208 (2010), Human Kinetics
- Reinold MM, "Current concepts in the scientific and clinical rationale behind exercises for glenohumeral and scapulothoracic musculature", J Orthop Sports Phys Ther, 39(2), pp.105~117 (2009)[DOI]
- Sahrmann, "Diagnosis and Treatment of Movement Impairment Syndromes", pp.193~217 (2002), Mosby
- Thigpen CA, "Head and shoulder posture affect scapular mechanics and muscle activity in overhead tasks", J Electromyogr Kinesiol, 20(4), pp.701~709 (2010)[DOI]
- Watson L, "Measurement of scapula upward rotation: A reliable clinical procedure", Br J Sports Med, 39(9), pp.599~603 (2005)
- Wong CK, "The effects of manual treatment on rounded-shoulder posture, and associated muscle strength", 14(4), pp.326~333 (2010)[DOI]
- Yano Y, "Different scapular kinematics in healthy subjects during arm elevation and lowering: Glenohumeral and scapulothoracic patterns", J Shoulder Elbow Surg, 19(2), pp.209~215 (2010)[DOI]
- Yoshizaki K, "Analysis of the scapulohumeral rhythm and electromyography of the shoulder muscles during elevation and lowering: Comparison of dominant and nondominant shoulders", J Shoulder Elbow Surg, 18(5), pp.756~763 (2009)[DOI]
