Influence of the Vibration Exposure on Shoulder and Back Extensor Muscles Activity During Forward-head and Over-head Task

• 영문명: Influence of the Vibration Exposure on Shoulder and Back Extensor Muscles Activity During Forward-head and Over-head Task
• 발행기관: 한국전문물리치료학회
• 저자명: Cheon-jun Park Duk-hyun An Jae-seop Oh Won-gyu Yoo
• 간행물 정보: 『한국전문물리치료학회지』제30권 제1호, 23~31쪽, 전체 9쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2023.02.28

영문 초록

Background: Several factors contribute to shoulder pain, including abnormal neck posture, repeated use of the upper limbs, work involving raising the upper limbs above the head, and the effects of vibration. However, previous study has reported that constant vibration expo-sure could impact improvement of the stability on joints related with muscle recruitment and activation. For this difference reason, we need to verify for the complex study of relationship with repetitive upper limb movements, poor head posture, and constant vibration exposure. Objects: Our study was made to investigate the influence of vibration exposure on the shoul-der muscle activity during forward-head and over-head tasks with isometric shoulder flexion. Methods: In a total of 22 healthy subjects, surface electromyography (EMG) data were col-lected from shoulder muscles (upper/lower trapezius, serratus anterior, and lumbar erector spinae) on tasks (neutral-head task [NHT], forward-head task [FHT], and over-head task [OHT]) with and without vibration exposure. Results: In all tasks, the EMG data of the upper trapezius and serratus anterior significantly increased with vibration exposure (p < 0.05). Furthermore, the EMG data of the lumbar erec-tor spinae significantly increased with vibration exposure in the NHT and FHT (p < 0.05). Conclusion: We suggest that continuous vibration exposure during the use of hand-held tools in the tasks could be associated with harmful effects in the workplace. Lastly, we clinically need to examine the guidelines regarding the optimal posture and vibration exposure.

목차

INTRODUCTION

MATERIALS AND METHODS

RESULTS

DISCUSSION

CONCLUSIONS

FUNDING

ACKNOWLEDGEMENTS

CONFLICTS OF INTEREST

AUTHOR CONTRIBUTION

ORCID

REFERENCES

키워드

Head Musculoskeletal diseases Vibration