This study evaluated the potential mismatch between vacuum-sealed jar opening demands and wrist torque strength of 758 (384 males and 374 females) participants aged 5–74 years in Iran. Wrist ulnar/radial (U/R) torque strength of participants and required torque for opening the existing jars (with 2 different sizes – 65 mm and 85 mm diameter lids) were measured using a digital angle torque adaptor and then compared together to identify any potential mismatch between them. The mismatch percentages were defined as the number of participants whose maximal wrist U/R torque strength were lower than the minimum required torque strength for opening the vacuum-sealed jars. Minimum required torque strength for opening the existing 65 mm and 85 mm vacuum-sealed jars were 4.1 Nm and 6.6 Nm, respectively (range = 4.1 Nm to 10.2 Nm). A considerable mismatch (range = 25%–100%) was found between the required torque strength for opening the existing jars and the wrist U/R torque strength of the study population, particularly for females and those aged 5–9 years. A torque limit of 1.8 Nm was proposed for opening jars for the entire population.

本研究评估了伊朗 758 名（384 名男性和 374 名女性）年龄在 5-74 岁之间的参与者的真空密封罐开口要求与手腕扭矩强度之间的潜在不匹配。使用数字角度扭矩适配器测量参与者的腕尺/径向 (U/R) 扭矩强度和打开现有罐子（具有 2 种不同尺寸 - 65 毫米和 85 毫米直径盖子）所需的扭矩，然后一起比较以确定任何它们之间的潜在不匹配。失配百分比被定义为最大手腕 U/R 扭矩强度低于打开真空密封罐所需的最小扭矩强度的参与者数量。打开现有 65 毫米和 85 毫米真空密封罐所需的最小扭矩强度分别为 4.1 牛米和 6.6 牛米（范围 = 4.1 牛米至 10.2 牛米）。在打开现有罐子所需的扭矩强度与研究人群的手腕 U/R 扭矩强度之间发现相当大的不匹配（范围 = 25%–100%），尤其是对于女性和 5-9 岁的人群。1.8 Nm 的扭矩限制被提议用于为整个人群打开罐子。