The effects of shoulder stabilization exercises and pectoralis minor stretching on balance and maximal shoulder muscle strength of healthy young adults with round shoulder posture

Mi-Kyoung Kim, Jung Chul Lee, Kyung-Tae Yoo, Mi-Kyoung Kim, Jung Chul Lee, Kyung-Tae Yoo

Abstract

[Purpose] The purpose of this study was to analyze the effects of pectoralis minor stretching and shoulder strengthening with an elastic band on balance and maximal shoulder muscle strength in young adults with rounded shoulder posture. [Subjects and Methods] Nineteen subjects with rounded shoulder posture were randomly divided into 2 groups: a shoulder stabilization exercise group and a stretching exercise group. The groups performed each exercise for 40 minutes, 3 times a week, for 4 weeks. Static balance (eyes open and closed), dynamic balance (the limits of stability in 4 directions) and shoulder muscle strength in 5 directions were measure before and after the exercises. [Results] The stretching exercise demonstrated a significant difference between the pre- and post-exercise in the static balance with eyes closed and extension and horizontal abduction strength while the stabilization exercise demonstrated significant difference in the left and right directions between the pre- and post-exercise of the dynamic balance and flexion strength. The stabilization exercise demonstrated significant differences shown in the flexion between the pre- and post-test. [Conclusion] The shoulder stabilization and stretching exercises improved the static balance, dynamic balance, and muscle strength.

Keywords: Balance; Round shoulder posture; Stabilization exercise.

Figures

Fig. 1.
Fig. 1.
Shoulder strengthening exercise.
Fig. 2.
Fig. 2.
Shoulder Stretching exercise on pectoralis minor.

References

    1. Hess SA: Functional stability of the glenohumeral joint. Man Ther, 2000, 5: 63–71.
    1. Magee DJ: Orthopedic physical assessment, 3rd ed. Philadelphia: WB Saunders, 1998.
    1. Curl LA, Warren RF: Glenohumeral joint stability. Selective cutting studies on the static capsular restraints. Clin Orthop Relat Res, 1996, (330): 54–65.
    1. Sahrmann SA: Diagnosis and treatment of movement impairment syndromes. Mosby, 2002.
    1. Greenfield B: Upper quarter evaluation: structural relationships and independence. In: Donatelli RA, Wooden MJ, eds, Orthopedic physical therapy. New York: Churchill Livingstone, 2001.
    1. Lukasiewicz AC, McClure P, Michener L, et al. : Comparison of 3-dimensional scapular position and orientation between subjects with and without shoulder impingement. J Orthop Sports Phys Ther, 1999, 29: 574–583, discussion 584–586.
    1. Singla D, Veqar Z: Association between forward head, rounded shoulders, and increased thoracic kyphosis: a review of the literature. J Chiropr Med, 2017, 16: 220–229.
    1. Szczygieł E, Węglarz K, Piotrowski K, et al. : Biomechanical influences on head posture and the respiratory movements of the chest. Acta Bioeng Biomech, 2015, 17: 143–148.
    1. Harman K, Hubley-Kozey CL, Butler H: Effectiveness of an exercise program to improve forward head posture in normal adults: arandomized, controlled 10-week trial. J Manual Manip Ther, 2005, 13: 163–176.
    1. Raine S, Twomey LT: Head and shoulder posture variations in 160 asymptomatic women and men. Arch Phys Med Rehabil, 1997, 78: 1215–1223.
    1. Raine S, Twomey L: Posture of the head, shoulders and thoracic spine in comfortable erect standing. Aust J Physiother, 1994, 40: 25–32.
    1. Lee JH: Effects of forward head posture on static and dynamic balance control. J Phys Ther Sci, 2016, 28: 274–277.
    1. Levangie PK, Norkin CC: Joint structure and function: a comprehensive analysis, 3rd ed. New Delhi: Jaypee Brothers, 2001.
    1. Huang MH, Barrett-Connor E, Greendale GA, et al. : Hyperkyphotic posture and risk of future osteoporotic fractures: the Rancho Bernardo study. J Bone Miner Res, 2006, 21: 419–423.
    1. Briggs AM, van Dieën JH, Wrigley TV, et al. : Thoracic kyphosis affects spinal loads and trunk muscle force. Phys Ther, 2007, 87: 595–607.
    1. Lewis NL, Brismée JM, James CR, et al. : The effect of stretching on muscle responses and postural sway responses during computerized dynamic posturography in women and men. Arch Phys Med Rehabil, 2009, 90: 454–462.
    1. Kang JH, Park RY, Lee SJ, et al. : The effect of the forward head posture on postural balance in long time computer based worker. Ann Rehabil Med, 2012, 36: 98–104.
    1. Ruivo RM, Carita AI, Pezarat-Correia P: The effects of training and detraining after an 8 month resistance and stretching training program on forward head and protracted shoulder postures in adolescents: randomised controlled study. Man Ther, 2016, 21: 76–82.
    1. Hu MH, Tsauo JY: Occupational disorders in the postural control system: assessment and prevention. Phys Ther ROC, 1997, 22: 149–157.
    1. Pausić J, Pedisić Z, Dizdar D: Reliability of a photographic method for assessing standing posture of elementary school students. J Manipulative Physiol Ther, 2010, 33: 425–431.
    1. Borstad JD, Ludewig PM: Comparison of three stretches for the pectoralis minor muscle. J Shoulder Elbow Surg, 2006, 15: 324–330.
    1. Wang CH, McClure P, Pratt NE, et al. : Stretching and strengthening exercises: their effect on three-dimensional scapular kinematics. Arch Phys Med Rehabil, 1999, 80: 923–929.
    1. Williams PE, Goldspink G: Changes in sarcomere length and physiological properties in immobilized muscle. J Anat, 1978, 127: 459–468.
    1. Williams PE, Goldspink G: The effect of immobilization on the longitudinal growth of striated muscle fibres. J Anat, 1973, 116: 45–55.
    1. Ruivo RM, Pezarat-Correia P, Carita AI: Effects of a resistance and stretching training program on forward head and protracted shoulder posture in adolescents. J Manipulative Physiol Ther, 2017, 40: 1–10.
    1. Lynch SS, Thigpen CA, Mihalik JP, et al. : The effects of an exercise intervention on forward head and rounded shoulder postures in elite swimmers. Br J Sports Med, 2010, 44: 376–381.
    1. McDonnell MK, Sahrmann SA, Van Dillen L: A specific exercise program and modification of postural alignment for treatment of cervicogenic headache: a case report. J Orthop Sports Phys Ther, 2005, 35: 3–15.
    1. Ludewig PM, Borstad JD: Effects of a home exercise programme on shoulder pain and functional status in construction workers. Occup Environ Med, 2003, 60: 841–849.
    1. Kirkesola F: SET advanced level 2-U. The upper body, course book. SET Kompetance AS, Norway, 2004, pp 3–17.
    1. Sobush DC, Simoneau GG, Dietz KE, et al. : The lennie test for measuring scapular position in healthy young adult females: a reliability and validity study. J Orthop Sports Phys Ther, 1996, 23: 39–50.
    1. Culham E, Peat M: Functional anatomy of the shoulder complex. J Orthop Sports Phys Ther, 1993, 18: 342–350.
    1. Park SK, Park JM, Lee JH: Effects of a push-up plus exercise program on scapular position and muscle activity in individuals with rounded shoulder posture. KSPT, 2010, 22: 1–8.
    1. Kisner C, Colby L: Therapeutic exercise: foundations and techniques, 5th ed. Philadelphia: F. A. Davis Company, 2007.
    1. Cantu RI, Grodin AJ: Myofascial manipulation, 2nd ed. Gaithersburg: Aspen, 2001.
    1. Cho HJ, Jang MJ: Effect of the thera-band exercise to idiopathic scoliosis of juveniles’. KJGD, 2011, 19: 31–36.
    1. Hensley CP, Sum J: Physical therapy intervention for a former power lifter after arthroscopic microfracture procedure for grade iv glenohumeral chondral defects. Int J Sports Phys Ther, 2011, 6: 10–26.
    1. Mekhora K, Liston CB, Nanthavanij S, et al. : The effect of ergonomic intervention on discomfort in computer users with tension neck syndrome. Int J Ind Ergon, 2000, 26: 367–379.
    1. Janda V: Muscles and motor control in cervicogenic disorders: assessment and management. Physical therapy of the cervical and thoracic spine. New York: Churchill Livingstone, 1994.
    1. Wong CK, Coleman D, diPersia V, et al. : The effects of manual treatment on rounded-shoulder posture, and associated muscle strength. J Bodyw Mov Ther, 2010, 14: 326–333.
    1. Lewis JS, Valentine RE: The pectoralis minor length test: a study of the intra-rater reliability and diagnostic accuracy in subjects with and without shoulder symptoms. BMC Musculoskelet Disord, 2007, 8: 64–73.
    1. Kluemper M, Uhl T, Hazelrigg H: Effect of stretching and strengthening shoulder muscles on forward shoulder posture in competitive swimmers. J Sport Rehabil, 2006, 15: 58–70.
    1. Lee AJ, Lin WH: Twelve-week biomechanical ankle platform system training on postural stability and ankle proprioception in subjects with unilateral functional ankle instability. Clin Biomech (Bristol, Avon), 2008, 23: 1065–1072.
    1. Boyas S, Hajj M, Bilodeau M: Influence of ankle plantarflexor fatigue on postural sway, lower limb articular angles, and postural strategies during unipedal quiet standing. Gait Posture, 2013, 37: 547–551.
    1. Muehlbauer T, Roth R, Mueller S, et al. : Intra and intersession reliability of balance measures during one-leg standing in young adults. J Strength Cond Res, 2011, 25: 2228–2234.
    1. Maribo T, Stengaard-Pedersen K, Jensen LD, et al. : Postural balance in low back pain patients: Intra-session reliability of center of pressure on a portable force platform and of the one leg stand test. Gait Posture, 2011, 34: 213–217.
    1. Ganesan M, Kanekar N, Aruin AS: Direction-specific impairments of limits of stability in individuals with multiple sclerosis. Ann Phys Rehabil Med, 2015, 58: 145–150.
    1. Pickerill ML, Harter RA: Validity and reliability of limits-of-stability testing: a comparison of 2 postural stability evaluation devices. J Athl Train, 2011, 46: 600–606.
    1. Lee JH, Cynn HS, Yoon TL, et al. : 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, 2015, 25: 107–114.
    1. Rosa DP, Borstad JD, Pogetti LS, et al. : Effects of a stretching protocol for the pectoralis minor on muscle length, function, and scapular kinematics in individuals with and without shoulder pain. J Hand Ther, 2017, 30: 20–29.
    1. Vuillerme N, Nougier V, Prieur JM: Can vision compensate for a lower limbs muscular fatigue for controlling posture in humans? Neurosci Lett, 2001, 308: 103–106.
    1. Gosselin G, Rassoulian H, Brown I: Effects of neck extensor muscles fatigue on balance. Clin Biomech (Bristol, Avon), 2004, 19: 473–479.
    1. Mascarin NC, de Lira CA, Vancini RL, et al. : The effects of preventive rubber band training on shoulder joint imbalance and throwing performance in handball players: a randomized and prospective study. J Bodyw Mov Ther, 2017, 21: 1017–1023.

Source: PubMed

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