Effects of Cervical and Scapular Stabilization Exercises on Head Posture and Muscle Activity in Individuals with Cervical Extension Type: A Randomized Controlled Trial
Source abstract
Abstract
Background: Cervical extension type is commonly associated with forward head posture and altered cervical and scapular muscle activity. However, the comparative effects of cervical stabilization exercises combined with scapular stabilization exercises or thoracic exercises remain unclear. Objective: In this study, we aimed to compare the effects of cervical stabilization exercises combined with scapular stabilization exercises and cervical stabilization exercises combined with thoracic exercises on head posture and muscle activity in individuals with cervical extension type. Methods: Thirty-two university students with cervical extension deformity were randomly assigned to either a cervical spine stabilization combined with scapular stabilization training group or a cervical spine stabilization combined with thoracic spine training group. Baseline demographic and anthropometric characteristics, including sex, age, height, weight, and body mass index, were comparable between the groups. Both groups received a 4-week intervention consisting of stretching, strengthening, and postural correction exercises, performed three times per week. Head posture was assessed using the craniovertebral angle (CVA) and cranial rotation angle (CRA), and the muscle activity of the sternocleidomastoid (SCM), upper trapezius (UT), lower trapezius (LT), and serratus anterior (SA) was measured using surface electromyography. Paired t-tests and two-way repeated measures ANOVA were used for statistical analysis. Results: No significant differences were observed in the general characteristics between the two groups at baseline. After the intervention, both groups showed significant improvements in CVA and CRA compared with baseline. Compared with the CTG, the CSG showed significantly greater reductions in SCM and UT activity and significantly greater increases in LT and SA activity. Significant time effects and group-by-time interaction effects were identified for selected head posture and muscle activity variables. Conclusion: Cervical stabilization exercises combined with scapular stabilization exercises may be more effective than cervical stabilization exercises combined with thoracic exercises in improving head posture and optimizing neck and scapular muscle activity in individuals with cervical extension type.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Scoliosis diagnosis and treatment · Musculoskeletal pain and rehabilitation · Temporomandibular Joint Disorders
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Rehabilitation Science, The Graduate School, Daegu University, Gyeongsan-si 38453, Republic of Korea
Funding
Daegu University Research
References (51)
Show source-provided references
1. The association between mobile phone usage duration, neck muscle endurance, and neck pain among university students10.1038/s41598-024-71153-4 ↗
2. Jung, J.Y., Lee, Y.B., and Kang, C.K. (2024). Effect of Forward Head Posture on Resting State Brain Function. Healthcare, 12.10.3390/healthcare12121162 ↗
3. Meng, Y., Xue, Y., Yang, S., Wu, F., and Dong, Y. (2025). The associations between sedentary behavior and neck pain: A systematic review and meta-analysis. BMC Public Health, 25.10.1186/s12889-025-21685-9 ↗
4. The Relationship Between Forward Head Posture and Neck Pain: A Systematic Review and Meta-Analysis10.1007/s12178-019-09594-y ↗
5. Kwon, O.-Y., Kang, M.-H., Kim, M.-H., Kim, S.-J., Kim, T.-H., Park, K.-N., Oh, J.-S., Lee, W.-H., Im, I.-Y., and Jang, J.-H. (2022). KEMA Approach for Analysis and Management of Motor Impairment 1, Hakjisa Medical.
6. Sahrmann, S. (2010). Movement System Impairment Syndromes of the Extremities, Cervical and Thoracic Spines, Elsevier Health Sciences.
7. Fathollahnejad, K., Letafatkar, A., and Hadadnezhad, M. (2019). The effect of manual therapy and stabilizing exercises on forward head and rounded shoulder postures: A six-week intervention with a one-month follow-up study. BMC Musculoskelet. Disord., 20.10.1186/s12891-019-2438-y ↗
8. Influence of forward head posture on myotonometric measurements of superficial neck muscle tone, elasticity, and stiffness in asymptomatic individuals with sedentary jobs10.1016/j.jmpt.2019.02.005 ↗
9. Effects of an 8-week selective corrective exercises program on electromyography activity of scapular and neck muscles in persons with upper crossed syndrome: Randomized controlled trial10.1016/j.ptsp.2019.03.008 ↗
10. Effectiveness of cervical stabilisation exercises on respiratory strength in chronic neck pain patients with forward head posture-a pilot study
11. Effects of the combination of traditional Thai massage, scapular stabilization exercise, and chest mobilization in subjects with forward head posture: A single-blinded randomized clinical trial10.1186/s12998-023-00506-z ↗
12. Cho, J., Lee, E., and Lee, S. (2017). Upper thoracic spine mobilization and mobility exercise versus upper cervical spine mobilization and stabilization exercise in individuals with forward head posture: A randomized clinical trial. BMC Musculoskelet. Disord., 18.10.1186/s12891-017-1889-2 ↗
13. Cervical and scapula-focused resistance exercise program versus trapezius massage in patients with chronic neck pain: A randomized controlled trial10.1097/MD.0000000000030887 ↗
14. Effects of self-posture correction exercise in forward head posture of smartphone users
15. Corrective exercises administered online vs at the workplace for pain and function in the office workers with upper crossed syndrome: Randomized controlled trial10.1007/s00420-022-01859-3 ↗
16. Effects of exercise therapy plus manual therapy on muscle activity, latency timing and SPADI score in shoulder impingement syndrome10.1016/j.ctcp.2021.101390 ↗
17. Effects of lower trapezius strengthening exercises on pain, dysfunction, posture alignment, muscle thickness and contraction rate in patients with neck pain; randomized controlled trial
18. Influence of forward head posture on cervicocephalic kinesthesia and electromyographic activity of neck musculature in asymptomatic individuals10.1016/j.jcm.2020.07.002 ↗
19. Effectiveness of posture-correction interventions for mechanical neck pain and posture among people with forward head posture: Protocol for a systematic review10.1136/bmjopen-2021-054691 ↗
20. Effect of Cervical and Thoracic Stretching and Strengthening Exercise Program on Forward Head Posture10.5392/JKCA.2011.11.10.293 ↗
21. Effects of thoracic posture correction exercises on scapular position10.1589/jpts.30.411 ↗
22. Effects of a combination of scapular stabilization and thoracic extension exercises on respiration, pain, craniovertebral angle and cervical range of motion in elementary school teachers with a forward head posture: A randomized controlled trial10.13066/kspm.2022.17.2.29 ↗
23. 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 study10.1016/j.math.2015.05.001 ↗
24. Tian, Q.-S., Zhou, X.-H., and Kim, T.-H. (2025). The Effects of Combined Cervical and Scapular Stabilization Exercises on Muscle Tone, Pain, and Cervical Range of Motion in Cervical Extension Type: A Controlled Experimental Study. Appl. Sci., 15.10.3390/app15052385 ↗
25. Rehabilitative ultrasound imaging10.1016/S1836-9553(11)70044-3 ↗
26. Current developments in surface electromyography10.55730/1300-0144.5667 ↗
27. Tuesta, M., Yáñez-Sepúlveda, R., Verdugo-Marchese, H., Mateluna, C., and Alvear-Ordenes, I. (2022). Near-Infrared Spectroscopy Used to Assess Physiological Muscle Adaptations in Exercise Clinical Trials: A Systematic Review. Biology, 11.10.3390/biology11071073 ↗
28. The Effects of Postural Education or Corrective Exercise on the Craniovertebral Angle in Young Adults with Forward Head Posture: A Randomized Controlled Trial
29. Normative value of deep neck flexors muscle strength measurement using pressure biofeedback unit and sphygmomanometer: An observational study10.1016/j.jbmt.2023.11.039 ↗
30. Impact of adding scapular stabilization to postural correctional exercises on symptomatic forward head posture: A randomized controlled trial
31. Effects of a combination of scapular stabilization and thoracic extension exercises for office workers with forward head posture on the craniovertebral angle, respiration, pain, and disability: A randomized-controlled trial10.5606/tftrd.2021.6397 ↗
32. Comprehensive corrective exercise program improves alignment, muscle activation and movement pattern of men with upper crossed syndrome: Randomized controlled trial10.1038/s41598-020-77571-4 ↗
33. The efficiency of corrective exercise interventions on thoracic hyper-kyphosis angle10.3233/BMR-130411 ↗
34. Jiang, L., Thadanatthaphak, Y., and Tudpor, K. (2025). Effects of Pilates Training Combined with Fascial Massage on Upper Cross Syndrome in Office Workers. Healthcare, 13.10.3390/healthcare13040410 ↗
35. Analysis of neck and back muscle activity during the application of various pillow designs in patients with forward head posture10.3233/BMR-200038 ↗
36. A comparison of computer-based methods for the determination of onset of muscle contraction using electromyography
37. Diagnosis and treatment of movement system impairment syndromes10.1016/j.bjpt.2017.08.001 ↗
38. The effect of postural training through action observation on craniovertebral angle and cranial rotation angle of forward head posture
39. Upper cervical and upper thoracic spine mobilization versus deep cervical flexors exercise in individuals with forward head posture: A randomized clinical trial investigating their effectiveness10.3233/BMR-181228 ↗
40. Effects of deep cervical flexor training on forward head posture, neck pain, and functional status in adolescents using computer regularly10.1155/2020/8327565 ↗
41. Comparision of effectiveness of isometric and stretching exercise in pain management among the forward head posture patients10.37506/ijpot.v15i2.14672 ↗
42. The Effect of Shoulder Stabilization Exercise and Core Stabilization Exercise on the Shoulder Height and Respiratory Function in Young Adults with Round Shoulder Posture10.13066/kspm.2023.18.4.1 ↗
43. Effect of scapular stabilization exercise on neck alignment and muscle activity in patients with forward head posture10.1589/jpts.30.804 ↗
44. Feasibility of a 4-Week Manual Therapy and Exercise Intervention on Posture and Function in Community-Dwelling Older Adults: A Pilot Study10.1519/JPT.0000000000000360 ↗
45. Correlation of back extensor strength with thoracic kyphosis and lumbar lordosis in estrogen-deficient WOMEN110.1097/00002060-199609000-00013 ↗
46. Assessment of stiffness of the superficial neck muscles in female office workers with impaired endurance of deep neck flexors: A case-control study10.5114/pq.2023.128026 ↗
47. Effects of deep cervical flexor exercise with visual guide on muscle activity and craniovertebral angle in subjects with forward head posture10.13066/kspm.2019.14.2.53 ↗
48. Effects of deep cervical flexor training on pressure pain thresholds over myofascial trigger points in patients with chronic neck pain10.1016/j.jmpt.2013.08.004 ↗
49. McDonnell, M.K., and Sahrmann, S. (2011). Movement system syndromes of the cervical spine. Movement System Impairment Syndromes of the Extremities, Cervical and Thoracic Spines, Elsevier.
50. The effect of scapular posterior tilt exercise, pectoralis minor stretching, and shoulder brace on scapular alignment and muscles activity in subjects with round-shoulder posture10.1016/j.jelekin.2014.10.010 ↗
51. Isometric muscle activation of the serratus anterior and trapezius muscles varies by arm position: A pilot study with healthy volunteers with implications for rehabilitation10.1016/j.jse.2016.11.010 ↗