Objective

The present study aimed to establish a normative database of neck strength and endurance while exploring personal and work-related factors that can significantly influence neck strength and endurance.

Background

A normative database combining both neck strength and endurance and delineating how they are affected by personal and work-related factors is currently lacking. It is needed for the development of tools and guidelines for designing work requiring head-neck exertions to contain the risk of occupational neck pain.

Methods

Forty healthy participants (20 males and 20 females) performed sustained-till-exhaustion head-neck exertions, while seated, at 50% and 100% of their maximal efforts in anterior, anterior-superior, and posterior-superior directions in neutral, 40° extended, and 40° flexed neck postures. Exertion force and endurance time data from 38 participants were recorded and analyzed using regression models.

Results

Overall, multiple regression analyses of the neck strength and endurance database revealed that head-neck posture is the most significant determinant of both neck strength and endurance. The time of day significantly influenced neck endurance. Among the personal factors, a significant sex effect on neck strength and significant age and body mass index (BMI) effects on neck endurance were identified.

Conclusion

The work-related factors play a more significant role in shaping both neck strength and endurance than personal factors and therefore are more important modifiable factors in meeting the physical demands of work.

Application

The study findings can aid in work design as well as in pre-employment screening to reduce the incidence of neck pain in the workplace.

中文翻译：

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颈部力量和耐力以及相关的个人和工作相关因素

客观的

本研究旨在建立一个规范的颈部力量和耐力数据库，同时探索可能显着影响颈部力量和耐力的个人和工作相关因素。

背景

目前缺乏一个结合颈部力量和耐力并描述它们如何受个人和工作相关因素影响的规范数据库。需要开发工具和指南来设计需要头颈部用力以控制职业性颈部疼痛风险的工作。

方法

40 名健康参与者（20 名男性和 20 名女性）在坐下时，在中立的前部、前上和后上方向上分别以 50% 和 100% 的最大努力进行了持续到筋疲力尽的头颈部运动，40 ° 伸展和 40° 弯曲颈部姿势。使用回归模型记录和分析了 38 名参与者的用力和耐力时间数据。

结果

总体而言，颈部力量和耐力数据库的多元回归分析表明，头颈姿势是颈部力量和耐力最重要的决定因素。一天中的时间显着影响颈部耐力。在个人因素中，确定了性别对颈部力量的显着影响以及年龄和体重指数（BMI）对颈部耐力的显着影响。

结论

与个人因素相比，与工作相关的因素在塑造颈部力量和耐力方面的作用更为重要，因此是满足工作身体需求的更重要的可改变因素。

应用

研究结果有助于工作设计以及就业前筛查，以减少工作场所颈部疼痛的发生率。