Saha Ratnadeep, Dey Netai Chandra, Samanta Amalendu, Biswas Rajib
Bengal Engineering and Science University, Shibpur, Botanic Garden, Howrah, 711103, India.
J Hum Ergol (Tokyo). 2007 Jun;36(1):1-12.
Ninety-eight healthy underground coal miners aged between 23-58 years were studied during their activity period. Physiological strain of different category of miners in terms of heart rate was monitored continuously with heart rate monitor that revealed the tasks as heavy to very heavy for them. Oxygen consumption was measured directly by using oxylog-2 machine that corresponded to metabolic costs for different activities ranging from 4.96 kcal/min to 5.47 kcal/min. The mean relative aerobic strain varied from 47.4%-56.8%--depicting acceptable level of physical strain was well encroached by the miners who irrespective of ages and categories showed poor recovery responses. This entails that miners are exerting themselves beyond their capacities where inevitably older workforce face the maximum burden.
在活动期间对98名年龄在23至58岁之间的健康地下煤矿工人进行了研究。使用心率监测器持续监测不同类别矿工在心率方面的生理压力，结果显示这些任务对他们来说从繁重到极其繁重。通过使用oxylog - 2机器直接测量耗氧量，其对应于不同活动的代谢成本，范围从4.96千卡/分钟到5.47千卡/分钟。平均相对有氧压力在47.4%至56.8%之间变化——这表明可接受的身体压力水平被这些矿工严重突破，他们无论年龄和类别，恢复反应都很差。这意味着矿工们正在超越自身能力地 exerting themselves，不可避免地，年长的劳动力面临着最大的负担。 （注：“exerting themselves”直译为“发挥自己”，结合语境这里可意译为“过度劳累”等，具体表述可根据上下文优化）
