Abstract. [Purpose] This study examined the adjustment of work load in the sit-to-stand exercise (STSE). [Subjects] The subjects were twenty-nine healthy young males, average age of nineteen.[Methods] Subjects did STSE and cycle ergometer exercise on the same day. The STSE protocol was standing-up frequencies set from 6 to 30 (times per minute),with an exercise time of three minutes at each frequency. The anaerobic threshold (AT) was determined on a cycle ergometer with a ramp protocol. The items measuring work load were oxygen uptake and heart rate. Cardiopulmonary function was measured from resting time to the end of the exercise. Oxygen uptake volume and heart rate relative to their AT values were calculated.[Results] Oxygen uptake volume and heart rate relative to their AT values frequencies from 6 to 30 times per minute ranged from 45.9 to 119.8 (%), and from 67.6 to 106.9 (%), respectively.[Conclusion] In case of STSE, the work load intensity of a subject cannot be quantitatively determined. Heart rate and oxygen uptake at standing exercise frequencies setting from 6 to 30 times/min relative to their anaerobic threshold values were 67.6-106.9 (%) and 45.9-119.8 (%), respectively. It was clarified that 30 times or less were anaerobic threshold that corresponded to work load . It is appropriate to adjust work load based on this standing up frequency only for young subjects.

Instances of physically disabled persons and the elderly receiving physical therapy outside medical institutions or at home have become common. In this paper, we review the assessment of cardiopulmonary function from the points of view of instrumental and non-instrumental loading. We investigated the application of noninstrumental loading, which is generally implemented, in a wide-ranging survey of the literature. We conclude that the exercise loading method which uses the stand-up exercise, one of the non-instrumental loading methods, can be considered useful in future applications. An issue concerning the application of stand-up exercise is the adjustment of the physical workload and the workload appropriate to subjects needs to be clarified.

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In group exercises in care facilities for the elderly, there is a possibility of excessive exercise load. We performed cardiopulmonary assessment of elderly residents at a care facility, at rest and during exercise utilizing repeated standing as the exercise load. The assessment took place before and after the exercise of repeated standing, measurements being made at rest for 5 minutes. Eleven of the subjects (45.8%) showed cardiopulmonary problems, suggesting that it is possible to overdo exercise in group exercises. We consider that it is necessary to provide exercise based on individual assessment of cardiopulmonary function even in group exercise.

We conducted a questionnaire among physical therapists working in intermediate welfare facilities to confirm the existence of cardiopulmonary function risks in individual instruction and group exercises performed in intermediate welfare facilities. The monitoring items of physiological reactions while exercising were chosen from the options in order of priority, then points to were allocated them and the order confirmed. In the results, it was found that accidents both in individual counseling and in group exercises had occurred, and 62.5% of physical therapists answered that PTs did not receive enough information to manage the risks. The monitoring situation was that sequential pulse variation and adjusted exercise load were evaluated in individual counseling, but only physiological reactions which occurred after motor stress were evaluated in group excercises. The subjects of group exercises had many conditions and their exercise load was difficult to establish, so it was thought that we should confirm the existence of risks more that in individual counseling.