Immediate responses to increased backpack load on vestibular function, balance and gait parameters in young adults

Abstract

Purpose: The effect of carrying a heavy backpack on body biomechanics have gained interest of the researchers in recent years. However, research regarding effects of backpack weight on vestibular function are limited. The aim of this study was to investigate immediate responses to increased backpack load on vestibular function, balance and gait parameters in young adults. Material and Methods: This was a prospective study including a total of 25 participants. The participants were evaluated with the stepping test for vestibular function, Y balance test for dynamic balance and an instrumented treadmill for the gait parameters with backpack 0%; 15% and 30% of body weight. Results: Regarding vestibular function, it was observed that test results were better with the increasing backpack load (p<0.05). In dynamic balance, there were significant differences in posteromedial and posterolateral directions (p<0.05). In terms of gait parameters, cycle time, cadence, gait velocity, ambulation index and bilateral step lengths were decreased as the load increased (p<0.05). Discussion: The results can be interpreted that the changes may be a part of compensatory mechanisms to protect and maintain the body biomechanics against the backpack weight. By putting extra weight, one can be challenged during vestibular training.

Keywords

• backpack loads
• proprioception
• balance
• gait
• vestibular function

Genç Yetişkinlerde Artan Sırt Çantası Yükünün Vestibüler Fonksiyon, Denge Ve Yürüme Parametreleri Üzerindeki Anlık Etkileri

Abstract

Amaç: Ağır sırt çantası taşımanın vücut biyomekaniğine etkisi son yıllarda araştırmacıların ilgisini çekmektedir. Bununla birlikte, sırt çantası ağırlığının vestibüler fonksiyon üzerindeki etkileri ile ilgili araştırmalar sınırlıdır. Bu çalışmanın amacı, genç erişkinlerde artan sırt çantası yükünün vestibüler fonksiyon, denge ve yürüme parametreleri üzerindeki akut yanıtlarını araştırmaktı. Gereç ve Yöntem: Prospektif olarak dizayn edilen çalışmaya toplam 25 katılımcı dahil edilmiştir. Katılımcılar, vestibüler fonksiyon için adım testi, dinamik denge için Y denge testi ve yürüyüş parametreleri için enstrümental koşu bandı kullanılarak %0; %15 ve %30 vücut ağırlığındaki sırt çantalarıyla değerlendirildi. Sonuçlar: Vestibüler fonksiyon ile ilgili olarak, artan sırt çantası yükü ile test sonuçlarının daha iyi olduğu görüldü(p<0,05). Dinamik dengede posteromedial ve posterolateral yönlerde önemli farklılıklar vardı(p<0,05). Yürüme parametreleri açısından, yük arttıkça döngü süresi, kadans, yürüme hızı, ambulasyon indeksi ve bilateral adım uzunlukları azaldı (p<0,05). Tartışma: Sonuçlar, sırt çantası ağırlığına karşı görülen değişikliklerin vücut biyomekaniğini korumak ve sürdürmek için kompansatuar mekanizmaların bir parçası olabileceği şeklinde yorumlanabilir. Ekstra ağırlık koyarak, vestibüler eğitim sırasında kişi zorlanabilir.

Keywords

• Sırt çantası ağırlığı
• propriyosepsiyon
• denge
• yürüyüş
• vestibüler

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