تأثیر تمرینات تعادلی همراه با اختلال دیداری استروبوسکوپ بر پایداری وضعیتی پویا (زمان رسیدن به پایداری) هنگام فرود تک‌پا در مردان فعال

نویسندگان

چکیده
مقدمه: تعادل یکی از مولفه‌های اصلی کنترل حرکتی است و نقش مهمی در حفظ پایداری بدن هنگام اجرای مهارت‌های پویا مانند فرود و تغییر جهت دارد. زمان رسیدن به پایداری شاخص مهمی برای سنجش سیستم عصبی‌‌عضلانی در ثبات پس از اختلالات مکانیکی محسوب می‌شود.

هدف مطالعه: هدف این پژوهش، بررسی اثر تمرینات تعادلی با و بدون عینک استروبوسکوپ بر زمان رسیدن به پایداری در افراد فعال بود.

روش‌کار: ۳9 مرد فعال ۱۸ تا ۳۰ سال به‌صورت تصادفی در سه گروه تمرینات تعادلی با عینک استروبوسکوپ، تمرینات تعادلی و کنترل قرار گرفتند. زمان رسیدن به پایداری در فرودهای تک‌پا به طول ۳۰، ۵۰ و ۷۰ سانتی‌متر با استفاده از صفحه نیرو اندازه‌گیری شد.مداخله شامل شش هفته تمرینات تعادلی بود که دو گروه یکی با عینک و دیگری بدون عینک تمرینات را انجام دادند. تحلیل داده‌ها با نرم افزار SPSS در سطح معنی‌داری 05/0 انجام گرفت.

نتایج: نتایج آزمون کوواریانس نشان‌ داد که هر دو گروه تمرینی نسبت به گروه کنترل بهبود معنی‌داری در زمان رسیدن به پایداری داشتند (05/0>P). کاهش زمان رسیدن به پایداری در گروه تمرینات با عینک استروبوسکوپ در فرودهای ۵۰ و ۷۰ سانتی‌متری بیشتر و همراه با اندازه‌اثر بالاتر بود. در فاصله ۳۰ سانتی‌متر هر دو گروه تمرینی بهبود مشابهی نشان دادند.

بحث و نتیجه‌گیری: نتایج این تحقیق تاثیر تمرینات اختلال دیداری در فرودهای با فاصله طولانی را نشان‌داد. بنظر می‌رسد در پرش‌های طولی با مهارت حرکتی پیچیده‌تر، نقش دیداری مهم‌تر می‌باشد. استفاده از عینک استروبوسکوب و اختلال دیداری در تمرینات تعادلی جهت ارتقا عملکرد ورزشی و کاهش خطر آسیب‌دیدگی پیشنهاد می‌شود.

کلیدواژه: تمرینات تعادلی، عینک استروبوسکوپ، زمان رسیدن به پایداری

کلیدواژه‌ها


عنوان مقاله English

Effect of Stroboscopic Vision–Augmented Balance Training on Dynamic Postural Stability (Time to Stabilization) During Single-Leg Landing in Physically Active Men

نویسندگان English

Hossein Ahadi
Mehdi Khaleghi tazeji
Hassan sadeghi
rasuol yaali
چکیده English

Introduction: Balance is a key component of motor control and plays a crucial role in maintaining postural stability during dynamic tasks such as landing and changing direction. Time to stability is a sensitive indicator of neuromuscular efficiency in restoring balance after mechanical perturbations.

Purpose of study: The purpose of this study was to examine the effects of balance training with and without stroboscopic glasses on TTS in physically active individuals.

Methods: In this Randomized Controlled Trial study, 39 physically active men aged 18–30 years were randomly assigned to three groups: balance training with stroboscopic glasses, conventional balance training, and control. Participants completed six weeks of progressive balance exercises. TTS during single-leg landings from 30, 50, and 70 cm was measured using a force plate. Data were analyzed using ANCOVA and Bonferroni post hoc tests with a significance level of 0.05.

Results: The results of the analysis of covariance (ANCOVA) indicated that both training groups showed a significant improvement in time to stabilization compared with the control group (p < 0.05).A significant main effect of group was observed at 30 cm (η² = 0.34, F = 8.40, p = 0.001), 50 cm (η² = 0.25, F = 5.33, p = 0.010), and 70 cm (η² = 0.30, F = 6.96, p = 0.003).



The reduction in time to stabilization was greater in the stroboscopic eyewear group at the 50- and 70-cm landing heights and was accompanied by larger effect sizes. At the 30-cm height, both training groups demonstrated similar improvements.

Conclusion: Intentional visual perturbation using stroboscopic glasses enhances reliance on proprioceptive and vestibular inputs, improving dynamic balance control. Integrating stroboscopic glasses into balance training programs may be an effective strategy to enhance performance and reduce the risk of lower-limb injuries in athletes.

Keywords: Balance training, stroboscopic glasses, time to stability

کلیدواژه‌ها English

Balance Training
stroboscopic glasses
time to stability
1.Sturnieks DL. Biomechanics of balance and falling. Falls in older people: risk factors, strategies for prevention and implications for practice. 2021 Nov 4:105.
2. Wallmann HW. The basics of balance and falls. Home Health Care Management & Practice. 2009 Oct;21(6):436-9. https://doi.org/10.1177/1084822309337189
3. Fransz DP, Huurnink A, de Boode VA, Kingma I, van Dieën JH. Time to stabilization in single leg drop jump landings: an examination of calculation methods and assessment of differences in sample rate, filter settings and trial length on outcome values. Gait & posture. 2015 Jan 1;41(1):63-9. https://doi.org/10.1016/j.gaitpost.2014.08.018
4. Lin JZ, Lin YA, Tai WH, Chen CY. Influence of landing in neuromuscular control and ground reaction force with ankle instability: A narrative review. Bioengineering. 2022 Feb 10;9(2):68. https://doi.org/10.3390/bioengineering9020068
5. Oshima T, Nakase J, Kitaoka K, Shima Y, Numata H, Takata Y, Tsuchiya H. Poor static balance is a risk factor for non-contact anterior cruciate ligament injury. Archives of orthopaedic and trauma surgery. 2018 Dec;138(12):1713-8. https://doi.org/10.1007/s00402-018-2984-z
6. Ross SE, Guskiewicz KM, Yu B. Single-leg jump-landing stabilization times in subjects with functionally unstable ankles. Journal of athletic training. 2005 Oct;40(4):298. PMID: 16404451
7. Mao M, Yin Y, Luo D, Liu H, Yu B. Evaluation of dynamic postural control during single-leg landing tasks using initial impact force, landing leg stiffness and time to stabilisation. Sports Biomechanics. 2024 Feb 1;23(2):182-95. https://doi.org/10.1080/14763141.2020.1833969
8. Kim KM, Estudillo-Martínez MD, Castellote-Caballero Y, Estepa-Gallego A, Cruz-Díaz D. Short-term effects of balance training with stroboscopic vision for patients with chronic ankle instability: a single-blinded randomized controlled trial. International journal of environmental research and public health. 2021 May 18;18(10):5364. https://doi.org/10.3390/ijerph18105364
9. Lee H, Han S, Hopkins JT. Balance Training With Stroboscopic Glasses and Neuromechanics in Patients With Chronic Ankle Instability During a Single-Legged Drop Landing. Journal of athletic training. 2024 Jun 26;59(6):633. https://doi: 10.4085/1062-6050-0605.22
10. Demir OB, Bilgin A. The effect of balance training with stroboscopic glasses on postural stability and activity level in patients: a meta-analysis. African Health Sciences. 2025 Sep 30;25(3):184-95.https://doi:10.4314/ahs.v25i3.23
11. STĂNESCU M. THE EFFECTS OF USING STROBOSCOPIC TRAINING ON SPORTS PERFORMANCE. Discobolul-Physical Education, Sport & Kinetotherapy Journal. 2021 Jun 1;60(2). https://doi.org/10.35189/dpeskj.2021.60.2.4
12. Kim KM, Kim JS, Grooms DR. Stroboscopic vision to induce sensory reweighting during postural control. Journal of sport rehabilitation. 2017 Sep 1;26(5). https://doi.org/10.1123/jsr.2017-0035
13. Zwierko M, Jedziniak W, Popowczak M, Rokita A. Effects of a 6-week stroboscopic training program on specific blocking reaction speed in young volleyball players. Physical Activity Review. 2024 Jul 1;12(2). https:// doi: 10.16926/par.2024.12.16
14. Uzlaşır S, Özdıraz KY, Dağ O, Tunay VB. The effects of stroboscopic balance training on cortical activities in athletes with chronic ankle instability. Physical Therapy in Sport. 2021 Jul 1;50:50-8. https://doi.org/10.1016/j.ptsp.2021.03.014
15. Ali N, Robertson DG, Rouhi G. Sagittal plane body kinematics and kinetics during single-leg landing from increasing vertical heights and horizontal distances: Implications for risk of non-contact ACL injury. The Knee. 2014 Jan 1;21(1):38-46. https://doi.org/10.1016/j.knee.2012.12.003
16. Chai L, Sun X, Huang Q, Huang T, Guo X, Liu H. Cortical Changes of Dual Cognitive-Task Balance Training in Patients With Chronic Ankle Instability: A Randomized Trial. Journal of Athletic Training. 2024 Nov 1;59(11):1077-88. https://doi: 10.4085/1062-6050-0463.23
17. Hall EA, Chomistek AK, Kingma JJ, Docherty CL. Balance-and strength-training protocols to improve chronic ankle instability deficits, part I: assessing clinical outcome measures. Journal of athletic training. 2018 Jun 1;53(6):568-77. https://doi: 10.4085/1062-6050-385-16
18. Appelbaum LG, Erickson G. Sports vision training: A review of the state-of-the-art in digital training techniques. International Review of Sport and Exercise Psychology. 2018 Jan 1;11(1):160-89. https://doi.org/10.1080/1750984X.2016.1266376
19. Hou Z, Fong DT, Winter SL. Decreased proprioception is associated with inferior postural control during unplanned landing in individuals with chronic ankle instability. Journal of Sports Sciences. 2024 Oct 17;42(20):1932-8. https://doi.org/10.1080/02640414.2024.2419217
20. Fortes LS, Faro H, Faubert J, Freitas-Júnior CG, Lima-Junior DD, Almeida SS. Repeated stroboscopic vision training improves anticipation skill without changing perceptual-cognitive skills in soccer players. Applied Neuropsychology: Adult. 2025 Jul 4;32(4):1123-37. https://doi.org/10.1080/23279095.2023.2243358
21. Habegger A, Savage J, Goodrich R, Curtis D, Traywick L, Young A, Kahl D, Conrad W, James D. Stroboscopic Vision Decreases Performance on the Y-Balance Test in Youth Athletes. JOSPT Open. 2025 Jan;3(1):30-4. https://www.jospt.org/doi/10.2519/josptopen.2024.1243