Department of Environmental Health Science, Konkuk University1
Department of Industrial Engineering, Hongik University2
This study aimed to identify the exercise intensity associated with four common physical activities for adults (running, skipping rope, walking, and muscle strength exercises) and two horticultural activities (creating a vegetable bed and garden maintenance). For this experiment, 19 males (mean age: 25.8 ± 2.3 years) randomly participated in the activities at a glasshouse at Konkuk University. Each of the six activities lasted for 5 minutes; the subjects rested for 5 minutes during intervals between the activities. A portable metabolic analyzer was used to store the oxygen and energy consumption values obtained upon measurement of each activity. In addition, a wireless heart rate monitor was used to measure the subjects’ heart rate. According to the results, the four types of physical activities and two horticultural activities carried out by the subjects are moderate- to high-intensity activities [i.e., 3.8 ± 0.9 to 9.9 ± 2.1 metabolic equivalents (METs)]. Running (9.9 ± 2.1 METs) and skipping rope (8.8 ± 2.2 METs) were categorized as high-intensity physical activities, whereas creating a vegetable bed (5.0 ± 1.2 METs), walking (4.9 ± 0.8 METs), muscle strength exercises (4.5 ± 1.3 METs), and garden maintenance (3.8 ± 0.9 METs) were classified as moderate-intensity physical activities. The exercise intensities of horticultural activities in this study were similar to those of walking and muscle strength exercises. Therefore, participating in these horticultural activities is expected to garner health benefits similar to those reaped from the physical activities described in the current study.
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