The Effect of Eight Weeks of Janda and Sahrmann Corrective Exercises on Improving Dynamic Balance and Quality of Life in Students with Hyperkyphosis

Khosravi, Hamidreza; Haidary, Manuchehr

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Volume 33, Issue 6 (1-2026)

Journal of Ilam University of Medical Sciences 2026, 33(6): 44-58

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The Effect of Eight Weeks of Janda and Sahrmann Corrective Exercises on Improving Dynamic Balance and Quality of Life in Students with Hyperkyphosis

Hamidreza Khosravi¹

, Manuchehr Haidary ^*²

1- Dept of Sports Injuries and Corrective Exercises, Faculty of Sport Sciences, Razi University, Kermanshah, Iran, Iran
2- Dept of Sports Injuries and Corrective Exercises, Faculty of Sport Sciences, Razi University, Kermanshah, Iran , mhaidary2000@yahoo.com

Abstract: (24 Views)

Introduction: Quality of life is a multidimensional and dynamic concept encompassing the physical, psychological, functional, and social dimensions of an individual, and it plays a key role in overall health. Optimal posture is one of the influential factors in enhancing quality of life. The purpose of this study was to investigate the effect of eight weeks of Janda and Sahrmann corrective exercises on improving dynamic balance and quality of life in students with hyperkyphosis.
Materials & Methods: In a semi-experimental randomized study, 30 male students with an average age of 14 years were randomly assigned into two groups of 15 (Janda exercises and Sahrmann exercises). Both groups performed corrective exercises for eight weeks (three one-hour sessions per week). In the pre-test and post-test stages, dynamic balance was assessed using the Y-Balance Test, and quality of life was evaluated using the localized WHOQOL-BREF questionnaire. Data were analyzed using paired and independent t-tests.
Results: The main results showed that both Janda and Sahrmann approaches significantly improved dynamic balance in all anterior and posterior directions as well as quality of life components including physical health, psychological well-being and overall quality of life in students (P<0.001). However, between-group analysis showed that Janda method had a greater effect than Sahrmann in improving dynamic balance in all three directions evaluated (P<0.001) and also showed significant superiority in physical health, social relationships and overall quality of life (P<0.003).
Conclusion: Janda exercises produced greater improvements in dynamic balance and quality of life than Sahrmann exercises; therefore, the use of the Janda method to correct postural abnormalities is recommended to therapists and exercise specialists.

Keywords: Hyperkyphosis, Forward Head Posture, Janda Approach, Corrective Exercises

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Type of Study: Research | Subject: education vartqa slamt
Received: 2025/10/27 | Accepted: 2025/12/23 | Published: 2026/01/28

References

1. Mahmoud NF, Hassan KA, Abdelmajeed SF, Moustafa IM, Silva AG. The relationship between forward head posture and neck pain: a systematic review and meta-analysis. Curr Rev Musculoskelet Med. 2019; 12:562-77. doi: 10.1007/s12178-019-09594-y.

2. Cho CY. Survey of faulty postures and associated factors among Chinese adolescents. J Manipulative Physiol Ther. 2008; 31:224-9. doi: 10.1016/j.jmpt.2008.02.003.

3. Massah O, Arab AM, Farhoudian A, Noroozi M, Hashemirad F. The correlation between neck pain and disability, forward head posture, and hyperkyphosis with opium smoking: A cross-sectional study from Iran. Brain Sci. 2023; 13:1281. doi: 10.3390/brainsci13091281.

4. Sepehri S, Sheikhhoseini R, Piri H, Sayyadi P. The effect of various therapeutic exercises on forward head posture, rounded shoulder, and hyperkyphosis among people with upper crossed syndrome: a systematic review and meta-analysis. BMC Musculoskelet Disord. 2024; 25:105. doi: 10.1186/s12891-024-07224-4.

5. Lee JH. Effects of forward head posture on static and dynamic balance control. J Phys Ther Sci. 2016; 28:274-7. doi: 10.1589/jpts.28.274.

6. Fernández-de-las-Peñas C, Cuadrado ML, Arendt-Nielsen L, Simons DG, Pareja JA. Myofascial trigger points and sensitization: an updated pain model for tension-type headache. Cephalalgia. 2007; 27:383-93. doi: 10.1111/j.1468-2982.2007.01295. x.

7. Izraelski J. Assessment and treatment of muscle imbalance: The Janda approach. J Can Chiropr Assoc. 2012; 56:158.

8. Izraelski J. Assessment and treatment of muscle imbalance: The Janda approach. J Can Chiropr Assoc. 2012; 56:158.

9. Wegner-Czerniak K, Mączyński J, Błaszczyk A, Ogurkowska MB. Change in the order of activation of lower limb muscles relative to spinal extensors during the Janda test and change in postural balance in patients with LBP after muscle energy techniques. J Clin Med. 2025; 14:1448. doi: 10.3390/jcm14051448.

10. Saranraj P. The Effectiveness of Comprehensive Corrective Exercise Program Along with Janda’s Approach and Lacrosse Ball Massage Technique in the Improvement of Posture in Subjects with Lower Crossed Syndrome. IJONS. 2024; 15.

11. Sahrmann SA, Azevedo DC, Dillen LV. Diagnosis and treatment of movement impairment syndromes. Braz J Phys Ther. 2017; 21:391-9. doi: 10.1016/j.bjpt.2017.08.001.

12. Taghipour S, Mohammadi B, Rabiei M, Bagherian S. The Effect of Eight Weeks Sahrmann's Present and Virtual Corrective Exercise Program on‎ the Upper Cross Syndrome of Female Teachers During the COVID-19 Pandemic‎. JPSR. 2024; 13:68-82. doi: 10.22038/jpsr.2024.73638.2522

13. Bakshian S, Aghdasi MT. Comparison of the Effect and Sustainability of 8 Weeks of Corrective Exercises Based on the‎ NASM Approach and the Sahrman Approach on Forward Head Posture and Neck Pain in Mobile‎ Phone Users in Young Men of Tabriz. J Sport Biomech. 2022; 8:168-84. doi: 10.52547/JSportBiomech.8.2.168

14. Negrini A, Vanossi M, Donzelli S, Zaina F, Romano M, Negrini S. Spinal Coronal and Sagittal Balance in 584 Healthy Individuals During Growth: Normal Plumb Line Values and Their Correlation with Radiographic Measurements. Phys Ther. 2019; 99:1712-1718. doi: 10.1093/ptj/pzz123.

15. Safari H, Zolaktaf V. Effects of eight weeks of Dynamic Neuromuscular Stabilization exercises on the balance of older men. SJRM. 2023; 11:978-87. doi: 10.32598/SJRM.11.6.10

16. Seidi F, Rajabi R, Ebrahimi I, Alizadeh MH, Minoonejad H. The efficiency of corrective exercise interventions on thoracic hyper-kyphosis angle. J Back Musculoskelet Rehabil. 2014; 27:7-16. doi: 10.3233/BMR-130411.

17. Shearer HM. Rehabilitation of the Spine – A Practitioner’s Manual, 2nd Ed. J Can Chiropr Assoc. 2007;51:62.

18. Sahrmann S, Azevedo DC, Dillen LV. Diagnosis and treatment of movement system impairment syndromes. Braz J Phys Ther. 2017; 21:391-9. doi: 10.1016/j.bjpt.2017.08.001.

19. Zahedi H, Abedini A. Comparison of the effects of Aerobic and functional training on the Static and Dynamic Balance of the semi–Hearing Students. JSMB. 2021; 16:100-89. doi: 10.22080/jsmb.2020.10729.2440

20. Kim Y, Bolton DA, Vakula MN, Bressel E. Catching and throwing exercises to improve reactive balance: A randomized controlled trial protocol for the comparison of aquatic and dry-land exercise environments. PLoS One. 2022;17: e0275733 doi: 10.1371/journal.pone.0275733.

21. Booth CE. Water exercise and its effect on balance and gait to reduce the risk of falling in older adults. Activ Adapt Aging. 2004; 28:45-57. doi.org/10.1300/J016v28n04_04

22. Avelar NC, Bastone AC, Alcântara MA, Gomes WF. Effectiveness of aquatic and non-aquatic lower limb muscle endurance training in the static and dynamic balance of elderly people. Rev Bras Fisioter. 2010; 14:229-36.

23. Ahmadi H, Yalfani A, Gandomi F. Effect of eight weeks of Corrective exercises carried out in Water on Static and Semi dynamic balance on students with Upper crossed syndrome) Janda approach. SJRM. 2020; 9:286-96. doi: 10.22037/jrm.2020.112005.2141

24. Waddington G, Adams R. Football boot insoles and sensitivity to extent of ankle inversion movement. Br J Sports Med. 2003; 37:170-5. doi: 10.1136/bjsm.37.2.170.

25. Maki BE, Perry SD, Norrie RG, McIlroy WE. Effect of facilitation of sensation from plantar foot-surface boundaries on postural stabilization in young and older adults. J Gerontol a Biol Sci Med Sci. 1999;54:M281-7. doi: 10.1093/gerona/54.6.m281.

26. SM L. Proprioception and neuromuscular control in joint stability. Human kinetics. 2000:405-13.

27. Azimizadeh MJ, Hoseini SH, Norasteh AA. Effect of a combined strengthening and proprioceptive training program on balance and gait of female children with intellectual disability. J Sport Biomech. 2021; 7:136-47. doi:10.32598/biomechanics.7.2.5.

28. Fukushima H, Hinoki M. Role of the cervical and lumbar proprioceptors during stepping: an electromyographic study of the muscular activities of the lower limbs. Acta Otolaryngol Suppl. 1985; 98:91-105.

29. Stålberg E, Dioszeghy P. Scanning EMG in normal muscle and in neuromuscular disorders. Electroencephalogr Clin Neurophysiol. 1991; 81:403-16. doi: 10.1016/0013-4694(91)90001-k.

30. Im B, Kim Y, Chung Y, Hwang S. Effects of scapular stabilization exercise on neck posture and muscle activation in individuals with neck pain and forward head posture. J Phys Ther Sci. 2016; 28:951-5. doi: 10.1589/jpts.28.951.

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Khosravi H, Haidary M. The Effect of Eight Weeks of Janda and Sahrmann Corrective Exercises on Improving Dynamic Balance and Quality of Life in Students with Hyperkyphosis. J. Ilam Uni. Med. Sci. 2026; 33 (6) :44-58
URL: http://sjimu.medilam.ac.ir/article-1-8808-en.html

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