The Use of Diaphragmatic Breathing in Alleviating Thai Students’ Public Speaking Anxiety
DOI:
https://doi.org/10.14456/arjla.2025.13Keywords:
Diaphragmatic Breathing, Deep Breathing Exercise, Public Speaking Anxiety, Anxiety Reduction Techniques, Thai EFL StudentsAbstract
Public speaking anxiety (PSA) is a significant barrier to effective oral communication, particularly for English as a Foreign Language (EFL) students. Despite the growing importance of speaking skills in today’s globalized world, many Thai EFL learners struggle with PSA, hindering their speaking performance. Traditional PSA interventions, such as systematic desensitization and cognitive restructuring, are well-documented but are often too time-consuming for integration into regular classroom activities. This study investigates the effectiveness of diaphragmatic breathing (DB) as a time-efficient intervention to reduce PSA and improve oral performance among Thai undergraduate students. An experimental design was used with 38 students, stratified by PSA levels, who were assigned to either an experimental group (DB intervention) or a control group. DB exercises were conducted before oral tasks to alleviate anxiety. PSA levels were measured post-intervention using the Public Speaking Anxiety Scale (PSAS). Key findings include: (1) high PSA levels among participants, (2) a negative correlation between PSA and oral performance scores, and (3) a significant reduction in PSA in the experimental group compared to the control group. The results suggest that DB is an effective strategy for reducing PSA, offering immediate relief through a simple, five-minute exercise. Its practicality and time efficiency make it an ideal technique for enhancing speaking skills in EFL contexts.
References
Bartholomay, E. M., & Houlihan, D. D. (2016). Public Speaking Anxiety Scale: Preliminary psychometric data and scale validation. Personality and Individual Differences, 94, 211–215. https://doi.org/10.1016/j.paid.2016.01.026.
Bodie, G. D. (2010). A racing heart, rattling knees, and ruminative thoughts: Defining, explaining, and treating public speaking anxiety. Communication Education, 59(1), 70–105. https://doi.org/10.1080/03634520903443849.
Brown, H. D. (2007). Principles of language learning and teaching (5th ed.). Pearson Longman.
Buchanan, T. W., Laures-Gore, J. S., & Duff, M. C. (2014). Acute stress reduces speech fluency. Biological Psychology, 97, 60–66. https://doi.org/10.1016/ j.biopsycho.2014.02.005.
Byrne, M., Flood, B., & Shanahan, D. (2012). A qualitative exploration of oral communication apprehension. Accounting Education, 21(6), 565–581. https://doi.org/10.1080/ 09639284.2012.725636.
Chen, Y. F., Huang, X. Y., Chien, C. H., & Cheng, J. F. (2017). The effectiveness of diaphragmatic breathing relaxation training for reducing anxiety. Perspectives in psychiatric care, 53(4), 329-336. https://doi.org/10.3389/fpsyg.2017.00874.
Crown Counseling. (2025, March). 30+ revealing fear of public speaking statistics for 2025. Retrieved from https://crowncounseling.com/statistics/fear-of-public-speaking-statistics/.
Dwyer, K. K., & Davidson, M. M. (2012). Is public speaking really more feared than death? Communication Research Reports, 29(2), 99–107. https://doi.org/10.1080/ 08824096.2012.667772.
Gallego, A., McHugh, L., Villatte, M., & Lappalainen, R. (2020). Examining the relationship between public speaking anxiety, distress tolerance and psychological flexibility. Journal of Contextual Behavioral Science, 16, 128–133. https://doi.org/10.1016/ j.jcbs.2020.04.003.
Greenberg, M. S. (2003). Comprehensive stress management (8th ed.). McGraw-Hill.
Gregersen, T., & Horwitz, E. K. (2002). Language learning and perfectionism: Anxious and non-anxious language learners’ reactions to their own oral performance. The Modern Language Journal, 86(4), 562–570. https://doi.org/10.1111/1540-4781.00161.
Ho, D. P. K., & Truong, T. N. N. (2022). Exploring Vietnamese non-English-majored freshmen's English-speaking anxiety at a public university in Vietnam. Tạp chí Nghiên cứu Nước ngoài, 38(5), 1–10. Retrieved from https://vjol.info.vn/index.php/NCNN/article/view/77556.
Horwitz, E. K. (2001). Language anxiety and achievement. Annual Review of Applied Linguistics, 21, 112–126. https://doi.org/10.1017/S0267190501000071.
Hopper, S. I., Murray, S. L., Ferrara, L. R., & Singleton, J. K. (2019). Effectiveness of diaphragmatic breathing for reducing physiological and psychological stress in adults: A quantitative systematic review. JBI Database of Systematic Reviews and Implementation Reports, 17(9), 1855–1876. https://doi.org/10.11124/JBISRIR-2017-003848.
Howe, M. M., & Dwyer, K. K. (2007). The influence of diaphragmatic breathing to reduce situational anxiety for basic course students. Basic Communication Course Annual, 19(1), 91–115. Retrieved from https://ecommons.udayton.edu/bcca/vol19/iss1/9.
Jerath, R., Crawford, M. W., Barnes, V. A., & Harden, K. (2015). Self-regulation of breathing as a primary treatment for anxiety. Applied Psychophysiology and Biofeedback, 40(2), 107–115. https://doi.org/10.1007/s10484-015-9279-8.
Kalra, R., & Siribud, S. (2020). Public speaking anxiety in the Thai EFL context. LEARN Journal: Language Education and Acquisition Research Network, 13(1), 195–209. Retrieved from https://so04.tci-thaijo.org/index.php/LEARN/article/view/237845.
Kayhan, S. (2025). The effect of intervention studies on foreign language speaking anxiety: A meta-analysis study. Journal of Pedagogical Research, 9(3), 62–83. https://doi.org/10.33902/JPR.202533156.
Khamkhien, A. (2010). Teaching English speaking and English speaking tests in the Thai context: A reflection from Thai perspective. English Language Teaching, 3(1), 184–190.Retrieved from https://files.eric.ed.gov/fulltext/EJ1081501.pdf.
Kurakan, P. (2021). Anxiety in English oral presentations of Thai EFL engineering students. THAITESOL Journal, 34(2), 67–92. Retrieved from https://so05.tci-thaijo.org/index.php/ thaitesoljournal/article/view/256486.
Lang, P. J. (1968). Fear reduction and fear behavior: Problems in treating a construct. In J. M. Schlien (Ed.), Research in psychotherapy (pp. 90–102). American Psychological Association.
Ma, X., Yue, Z., Gong, Z., Zhang, H., Duan, N., Shi, Y., & Wei, G. (2017). The effect of diaphragmatic breathing on attention, negative affect and stress in healthy adults. Frontiers in Psychology, 8, 874. https://doi.org/10.3389/fpsyg.2017.00874.
McCroskey, J. C. (2006). Personal Report of Public Speaking Anxiety (PRPSA). Retrieved from https://www.jamescmccroskey.com/measures/prpsa.html.
MacIntyre, P. D., & Gardner, R. C. (1991). Language anxiety: Its relationship to other anxieties and to processing in native and second languages. Language Learning, 41(4), 513–534. https://doi.org/10.1111/j.1467-1770.1991.tb00691.
MacIntyre, P. D., & Gardner, R. C. (1994). The subtle effects of language anxiety on cognitive processing in the second language. Language Learning, 44(2), 283–305. https://doi.org/10.1111/j.1467-1770.1994.tb01103.
Nunan, D. (2003). Practical English language teaching. McGraw-Hill.
Okyar, H. (2023). Foreign language speaking anxiety and its link to speaking self-efficacy, fear of negative evaluation, self-perceived proficiency, and gender. Science Insights Education Frontiers, 17(2), 2715–2731. https://doi.org/10.15354/sief.23.or388.
Oloba, P. B., Tshidzumba, A., & Nkabane-Sekopo, L. (2025). Exploring the causes and physical
manifestations of glossophobia among university students. EDUCATIO: Journal of Education, 9(1), 65–79. Retrieved from https://ejournal.staimnglawak.ac.id/ index.php/ educatio/article/download/1689/637.
Ortega-Donaire, L., Álvarez-García, C., López-Franco, M. D., & Sanz-Martos, S. (2023). Effectiveness of guided breathing and social support for the reduction of pre-exam anxiety in university students: A factorial study. Healthcare, 11(4), 574. https://doi.org/10.3390/ healthcare11040574.
Peper, E., Harvey, R., Cuellar, Y., & Membrila, C. (2022). Reduce Anxiety. NeuroRegulation, 9(2), 91–97. https://doi.org/10.15540/nr.9.2.91.
Phisutthangkoon, K. (2024). Thai EFL university students’ beliefs in English-speaking fluency. rEFLections, 31(2), 478–500. Retrieved from https://so05.tci-thaijo.org/index.php/ reflections/article/view/274780.
Poolperm, R., & Boonmoh, A. (2024). Differences in Thai students’ anxiety when speaking English in onsite and online classrooms. THAITESOL Journal, 37(1), 1–23. Retrieved from https://so05.tci-thaijo.org/index.php/thaitesoljournal/article/view/270772.
Pruksaseat, C. (2022). Foreign language speaking anxiety of Thai EFL students in virtual classrooms. Pasaa Paritat Journal, 37, 41–67. https://doi.org/10.58837/CHULA.PPJ.37.3.
Qin, L., & Poopatwiboon, S. (2023). English speaking anxiety of Thai EFL undergraduate students: Dominant type, level, and coping strategies. English Language Teaching, 16(6), 102–115. https://doi.org/10.5539/elt.v16n6p102.
Ran, C., Wang, Y., & Zhu, W. (2022). Comparison of foreign language anxiety based on four language skills in Chinese college students. BMC Psychiatry, 22, 558. https://doi.org/10.1186/s12888-022-04201-w.
Russell, G., & Topham, P. (2012). The impact of social anxiety on student learning and well-being in higher education. Journal of Mental Health, 21(4), 375–385. https://doi.org/10.3109/09638237.2012.694505.
Schneier, F. R., Rodebaugh, T. L., Blanco, C., Lewin, H., & Liebowitz, M. R. (2011). Fear and avoidance of eye contact in social anxiety disorder. Comprehensive Psychiatry, 52(1), 81–87. https://doi.org/10.1016/j.comppsych.2010.04.006.
Smith, C. D., Sawyer, C. R., & Behnke, R. R. (2005). Physical symptoms of discomfort associated with worry about giving a public speech. Communication Reports, 18(1–2), 31–41. https://doi.org/10.1080/08934210500084206.
Surani, D., Mudjiyanto, J., Hartono, R., & Sakhiyya, Z. (2025). Enhancing speaking skills and overcoming anxiety using technology: An e-learning module for EFL learners. Participatory Educational Research, 12(3), 196–216. Retrieved from https://dergipark.org.tr/en/ download/article-file/4464523.
Suratin, N., & Sribayak, V. (2025). Factors contributing to speaking anxiety and anxiety reduction techniques in Thai adult EFL learners. LEARN Journal: Language Education and Acquisition Research Network, 18(1), 294–319. Retrieved from https://so04.tci-thaijo.org/index.php/ LEARN/article/view/277562.
Thaksanan, P. (2024). The study of EFL students’ public speaking anxiety and academic oral presentation strategies at a tertiary level in Thailand. Journal of Education and Innovation, 26(4), 48–59. Retrieved from https://so06.tci-thaijo.org/index.php/edujournal_ nu/article/ view/270538.
Thornbury, S. (2005). How to teach speaking. Pearson Education.
Thunnissen, M. R., Nauta, M. H., de Jong, P. J., Rijkeboer, M. M., & Voncken, M. J. (2022). Flashforward imagery in speech anxiety: Characteristics and associations with anxiety and avoidance. Frontiers in Psychology, 13, 975374. https://doi.org/10.3389/fpsyg.2022.975374.
Un-udom, S., Jampeehom, K., & Chaidet, C. (2017). Effects of synchronous CMC on Thai EFL learner speaking anxiety and fluency. Chophayom Journal, 28(3), 293–300. Retrieved from https://so01.tci-thaijo.org/index.php/ejChophayom/article/view/107298.
Wang, X., & Zhang, W. (2021). Psychological anxiety of college students’ foreign language learning in online courses. Frontiers in Psychology, 12, Article 774897. https://doi.org/10.3389/fpsyg.2021.598992.
Yerkes, R. M., & Dodson, J. D. (1908). The relation of strength of stimulus to rapidity of habit formation. Journal of Comparative Neurology and Psychology, 18, 459–482. http://dx.doi.org/10.1002/cne.920180503.
Zaccaro, A., Piarulli, A., Laurino, M., Garbella, E., Menicucci, D., Neri, B., & Gemignani, A. (2018). How breath-control can change your life: A systematic review on psycho-physiological correlates of slow breathing. Frontiers in Human Neuroscience, 12, 353. https://doi.org/10.3389/fnhum.2018.00353.
Zambak, A. (2023). Factors determining foreign language speaking anxiety: A study on high school students. Okul Yönetimi (SAJ), 4(1), 35–46. Retrieved from https://dergipark.org.tr/en/pub/ saj/issue/86293/1497383.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 Academic and Research Journal of Liberal Arts (Online)

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
บทความที่ได้รับการตีพิมพ์เป็นลิขสิทธิ์ของวารสารศิลปศาสตร์วิชาการและวิจัย
ข้อความที่ปรากฏในบทความแต่ละเรื่องในวารสารวิชาการเล่มนี้เป็นความคิดเห็นส่วนตัวของผู้เขียนแต่ละท่านไม่เกี่ยวข้องกับมหาวิทยาลัยหัวเฉียวเฉลิมพระเกียรติ และคณาจารย์ท่านอื่นๆ ในมหาวิทยาลัยฯ แต่อย่างใด ความรับผิดชอบองค์ประกอบทั้งหมดของบทความแต่ละเรื่องเป็นของผู้เขียนแต่ละท่าน หากมีความผิดพลาดใดๆ ผู้เขียนแต่ละท่านจะรับผิดชอบบทความของตนเองแต่ผู้เดียว
