Energy Cost of Stand-Up Exercises in Normal and Hemiplegic Subjects

2011

J Phys Ther Sci

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.

Section: Introductionmentioning

confidence: 99%

The Relationship between Sit-to-stand Frequency and Anaerobic Threshold Determined by Cycle Ergometer

2011

J Phys Ther Sci

Assessment of Cardiopulmonary Function during Exercise at a Care Facility for the Elderly -Risk Assessment of Cardiopulmonary Function in Group Exercise

2008

Rigakuryoho kagaku

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.

Anaerobic Metabolic Threshold Value Determined by Bicycle Ergometer and its Relationship with Stand-up Exercise Load Intensity

2009

Rigakuryoho kagaku

Purpose] We instituted exercise loads by repeated stand-up exercise and bicycle ergometer, and using the anaerobic threshold determined with a bicycle ergometer, we examined the relationship with exercise intensity of both methods. [Subjects and Method] The subjects were 29 healthy young males, (average age 19.9 years). We took measurements of items reflecting cardiopulmonary function from at rest to the end of the exercise. The frequency of stand-ups was set from 6 to 30 per min, and the exercise time was 3 min. The anaerobic threshold was determined on a bicycle with a ramped load protocol. For the analysis, the oxygen uptake volume and heart rate at each stand-up frequency was determined as a ratio of the anaerobic threshold at each value.[Results] Oxygen uptake volume and heart rate in stand-ups from 6 to 30 times per min ranged from 45.9 -119.8% and from 67.6-106.9% of the anaerobic threshold, respectively. [Conclusion] A stand-up frequency of 24 to 30 per min can be considered an exercise intensity approximately equivalent to the anaerobic threshold.