Electromyograpic Activity of the Abdominal and Paravertebral Muscles During Coffee Harvesting

Abstract

Introduction The rural worker involved in the coffee harvest is an important person for the economy of the many countries. However, scientific studies on the health of this worker are rare. Objective To analyze the lumbar paravertebral musculature and abdominal rectus of rural workers during coffee harvesting with the manual machines with different footrest bases (inclined, declined and horizontal), by means of electromyography. Methods Eight male rural workers from the region of Muzambinho participated in the study. All procedures and electromyographic routines were applied according to the SENIAN protocol. The workers made the usual coffee harvesting movements, using the manual machine for one minute. The data are expressed as means and standard deviations. The RMS (root mean square) signal and the median frequency (FM) were also analyzed. Results It was observed that the type of footrest base did not influence the electromyographic activity RMS or the FM, but we found that the paravertebral muscles have greater electromyographic activation when compared to the abdominal muscles, regardless of the type of footrest base. Conclusion For the task performed, the paravertebral muscles present greater electromyographic activation compared to the abdominal rectus. Level of Evidence III; Diagnostic studies - Investigating a diagnostic test.

Estilo de vida, características sociodemográficas, ocupacionais e dor em profissionais de enfermagem com lombalgia

“…Two major risk factors for its development are individual factors, such as gender, age, body mass index (BMI), muscle quality and function, socioeconomic conditions, and other diseases, and occupational factors, including inappropriate movements and postures, work organization and execution, and inappropriate work environment (Ribeiro et al, 2019). Therefore, physically demanding professions involving poor posture and repetitive movements can cause pain, especially in the lumbar region, which is a highly prevalent clinical condition in both men and women (Lima et al, 2020). Thus, nursing has been the focus of research, especially in hospital settings, due to the adverse conditions of its activities and the exposure to several workloads that may be interrelated (Cargnin, Schneider, Vargas, & Machado, 2019).…”

Análisis biomecánico en la actividad de recolección café en Colombia

“…To do that, they compared the performance of different footrest bases. [21]. In addition, Alves and colleagues use a multivariate statistical methodology to provide plausible and interpretable results to diagnose the most influential body postures for each worker in coffee crops evaluated by OWAS [22].…”