DIFFERENCE IN PERCEIVED PAIN INTENSITY DEPENDING ON THE ORDER OF SUBMAXIMAL ISOMETRIC CONTRACTIONS PERFORMED AT DIFFERENT INTENSITIES

Yıl 2021, Cilt: 32 Sayı: 1, 74 - 80, 10.04.2021

Wootaek Lim

https://doi.org/10.21653/tjpr.775826

Cited By: 2

Öz

Purpose: Previous studies that examined pain after submaximal isometric contractions at different intensities are limited in that they used different intensities randomly. The present study aimed to examine the change in pain depending on the order of submaximal isometric contractions performed at two different intensities and inter-and intra-individual differences in pain responses.
Methods: Twenty-nine volunteers participated (mean age=22.10±1.60 years) to the study. Hamstring flexibility was measured in the supine position. Maximal voluntary contraction (MVC) was measured during hip extension. Submaximal contractions were performed at two different target intensities: 25% and 75% of MVC. Visual Analogue Scale (VAS) was used to measure the pain after submaximal contractions. Group A (n=15) performed submaximal contraction in 25% to 75% of MVC in the 1st period and 75% to 25% of MVC in the 2nd period. In Group B (n=14), the submaximal contraction was performed in each period in the opposite order of Group A.
Results: There was a significant decrease in pain in Group B during the 2nd period (p<0.05). The VAS at 75% of the MVC showed a significant decrease at 25% of the MVC (p=0.011). Correlations were observed between flexibility and 1st-period VAS score (p=0.048) and 2nd-period VAS score (p=0.036) and between the VAS scores in the 1st and 2nd periods (p<0.001).
Conclusion: Pain intensity could be perceived differently depending on the order of sequential application, even when the intensities are identical, and might be more clinically useful in the analysis of intra-individual comparisons.

Anahtar Kelimeler

Hamstring Muscles, Isometric Contraction, Pain, Range of Motion

Destekleyen Kurum

Woosong University

Proje Numarası

2020 Woosong University Academic Research Funding

FARKLI YOĞUNLUKLARDA YAPILAN SUBMAKSİMAL İZOMETRİK KONTRAKSİYONLARIN SIRASINA BAĞLI OLARAK AĞRI ALGISINDA OLUŞAN FARKLILIK

Öz

Amaç: Önceki çalışmalar farklı yoğunluklarda yapılan submaksimal izometrik kasılmalardan sonra ağrının incelenmesi, ağrının yüksek yoğunlukta göreceli olarak yüksek olduğunu doğrulamıştır. Bununla birlikte, önceki çalışmalar, farklı yoğunlukları randomize bir sırayla kullanmaları nedeniyle sınırlıdır. Bu araştırmanın amacı, iki farklı yoğunlukta yapılan submaksimal izometrik kasılmaların sırasına bağlı olarak ağrıdaki değişikliği incelemekti..
Yöntem: Maksimum istemli kasılma (MVC) ölçüldükten sonra, iki farklı hedef yoğunluğunda alt maksimal kasılmalar yapıldı; MVC'nin% 75'i ve% 25'i. Ağrıyı ölçmek için görsel analog skala kullanıldı. İlk dönemde Grup A, MVC'nin% 25'ini ve daha sonra MVC'nin% 75'ini gerçekleştirdi. İkinci dönemde, % 75 MVC, ardından% 25 MVC gerçekleştirmiştir. Grup B'de, azami kasılma her dönemde A grubunun tersi sırada gerçekleştirildi.
Sonuçlar: Grup B'de 2. periyot boyunca ağrıda anlamlı bir azalma vardı. MVC'nin% 75'indeki VAS, MVC'nin% 25'inde önemli bir azalma gösterdi. Bununla birlikte, yoğunluk sırası düşükten yüksek yoğunluğa uygulandığında ağrıda anlamlı bir fark yoktu.
Tartışma: İki farklı yoğunluğu birleştiren bir program sırasında şiddetler aynı olsa bile, ağrının büyüklüğü sıralı uygulama sırasına bağlı olarak farklı algılanabilir.

Anahtar Kelimeler

Hamstring Kasları, İzometrik Kasılma, Ağrı, Hareket Aralığı

Proje Numarası

2020 Woosong University Academic Research Funding

Kaynakça

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