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首页> 外文会议>Asia-Pacific Congress on Sports Technology >Evaluation of ergonomics of a new effort saving via-ferrata carabiner - child vs. adult use
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Evaluation of ergonomics of a new effort saving via-ferrata carabiner - child vs. adult use

机译：评估通过FERRATA CARABINER - 儿童与成人使用的新努力的人体工程学

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Despite via-ferrata (Klettersteig) climbing has become more and more popular, currently no appropriate safety equipment is available for lightweight climbers. A typical example of missing user friendliness for children is the via ferrata carabiner whose dimension - compared to customary adult equipment - and unlocking procedure might be inadequate for a child's hand. A new designed effort saving via-ferrata carabiner (ERGOTEC, SALEWA Sportgerate GmbH, Germany) has been evaluated with respect to ergonomics and user friendliness for both children and adults. Twelve adults (21 to 29 years) and twelve children and adolescents (7 to 15 years) tested a new effort saving via-ferrata carabiner ERGOTEC and two conventional carabiners - One-Touch (EDELRID GmbH & Co. KG, Germany) and ATTAC (SALEWA Sportgerate GmbH, Germany). The activities produced by the flexors M. brachioradialis and M. flexor carpi ulnaris were measured in two loading situations by using Electromyography (EMG, Noraxon Inc., USA). With the new effort saving via-ferrata carabiner a reduction of muscle activity compared to the two conventional carabiners was observed for adults as well as for children and adolescents. However due to different hand anthropometry and muscle forces differences in operation and handling of the via-ferrata carabiners, i.e. the position of the transmission of the finger forces, were observed. To compensate the lower finger forces children use the advantage of a better lever arm for all three tested carabiners, i.e. the distance of the force transmission to the hinge joint increased. But with this position of the fingers it is difficult to mount the customary carabiners in the steel cable. With the design of the via-ferrata carabiner ERGOTEC a user friendly handling was observed also with the anthropometry of smaller child hands.
机译：尽管通过普通福雷拉拉提（Klettersteig）攀登已经越来越受欢迎，目前没有适当的安全设备可用于轻质登山者。儿童缺失用户友好性的典型示例是Via Ferrata Carabiner，其维度 - 与习惯性的成人设备相比，并且对儿童的手可能不充分。一项新的设计努力，拯救了Via-Ferrata Carabiner（Ergotec，Salewa Sportgerate GmbH，德国）已经了解了人体工程学和儿童和成年人的用户友好。十二名成年人（21至29岁）和十二名儿童和青少年（7至15年）测试了一项新的努力，通过 - Ferrata Carabiner Ergotec和两个传统的Carabiners - 单次（Edelrid GmbH＆Co.KG，德国）和attac（ Salewa Sportgerate GmbH，德国）。通过使用电拍摄（EMG，Noraxon Inc.，USA）在两个加载情况下测量由屈肌M.Brachioradialis和M.Fexor Carpi Ulnaris产生的活动。随着通过节省的新努力，通过对成人以及儿童和青少年观察到与两种常规的梳埋师相比减少肌肉活动。然而，由于不同的手管测量测切术和肌肉力的操作和处理via-ferrata carabiners的差异，即手指力传递的位置。为了补偿较低的手指迫使儿童使用更好的杠杆臂的优势，对于所有三个测试的轿车，即力传递到铰链接头的距离增加。但是，通过手指的位置，难以在钢缆中安装习惯的CARABINERS。随着VIA-FERRATA CARABINER ERGOTEC的设计，也观察了用户友好的处理，同时具有较小的儿童手的人类测定法。

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