Prolonged slumped sitting causes neck pain and increased axioscapular muscle activity during a computer task in healthy participants - A randomized crossover study.
Appl Ergon
; 110: 104020, 2023 Jul.
Article
em En
| MEDLINE
| ID: mdl-36958253
ABSTRACT
INTRODUCTION:
Sitting posture may contribute to spinal pain. Effects of postures on pain, sensitivity and muscle activity during computer tasks were investigated.METHODS:
Twenty-five healthy participants, seated at a workstation without backrest, completed four, 15-min typing tasks A)Upright with forearm-support; B)Upright without forearm-support; C)Slumped with forearm-support; D)Slumped without forearm-support. Participants rated pain every minute on a numerical rating scale (NRS). RMS-EMG was recorded from upper/lower trapezius (UT, LT), serratus anterior and anterior/middle deltoid. At baseline and after tasks, pressure pain thresholds (PPTs) were recorded bilaterally over the head, UT, and leg.RESULTS:
All tasks caused clinically relevant increased NRS (≥2/10) compared to baseline (P < 0.001). NRS was higher in Task-D (P < 0.003) and lower in Task-B (P < 0.005) than others. PPTs did not change from baseline. Task-D caused higher UT and LT RMS-EMG (P < 0.02) than other tasks.CONCLUSION:
A 15-min task caused pain irrespective of posture with some causing larger changes than others.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cervicalgia
/
Músculos Superficiais do Dorso
Tipo de estudo:
Clinical_trials
/
Etiology_studies
Limite:
Humans
Idioma:
En
Revista:
Appl Ergon
Ano de publicação:
2023
Tipo de documento:
Article