抄録
This study investigated the physiological responses to seated arm swing and step-up exercises with portable tube walking device（PTW）in healthy adults. Fourteen participants performed both exercises with and without PTW, and measurements included electromyographic activity of upper limb muscles, oxygen consumption, heart rate, and ratings of perceived exertion（RPE）for the upper limbs. The use of PTW significantly increased triceps brachii activity in both exercise modes, with additional increases observed in the deltoid during the step-up exercise. In the seated condition, PTW increased energy expenditure by +0.2 to +0.3 METs and heart rate by approximately 3.0 bpm,and regression analysis predicted a +0.4 METs increase at 120 bpm. In the step-up condition, PTW use resulted in a +0.6 METs increase,reaching 8.5 METs, which corresponds to vigorous-intensity aerobic activity. Upper-limb RPE values were also significantly higher under PTW conditions. These results suggest that PTW effectively enhances upper limb muscle activity and cardiorespiratory responses during simple non-ambulatory exercises, offering a practical and safe modality for exercise prescriptions targeting older adults or individuals with mobility limitations.
https://ror.org/01692sz90 
