摘要：In order to study the working rhythm and working condition of coal miners, 30 coal miners were selected, and 7 of them with similar body mass index were selected as subjects. Firstly, one-way analysis of variance was used to check if the subjects had similar physical state before the experiment. Then, the random error and systematic error of subjects will be eliminated by averaging and difference calculation before each experiment. Finally, paired t test will be used to verify the relations between calorie consumption and response latency, so as to figure out the relations between the energy consumption and physical state of the subjects.Practitioner Summary: the physical states of subjects experienced three stages of “excitement, transition, fatigue^ during working hours. When calorie consumption was about less than 150 calories, the subjects had high working enthusiasm and efficiency in the stage of''excitement^; with calorie consumption increasing within the range from about 150 calories to 250 calories, the subjects were in their stage of “transition”. With the increasing physical consumption, the subjects started to be less enthusiastic about the work; when calorie consumption increased over about 250 calories, the subjects started to step into the stage of “fatigue”. Both working enthusiasm and working efficiency declined in this stage.
关键词：Calorie consumption;response latency;variance analysis and physical state
