Reproducibility of the Physiological Cost Index among Individuals with a Lower‐Limb Amputation and Healthy Adults

Hagberg, Kerstin; Tranberg, Roy; Zügner, Roland; Danielsson, Anna

doi:10.1002/pri.477

Cited by 26 publications

(26 citation statements)

References 41 publications

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“…The mean 6MWT distance was half of the estimated normative values [18, 28], which was similar to the results found in another study at a later stage after stroke [29]. The energy cost measured using the PCI was approximately double compared to healthy people [19, 20, 30] and comparable to another study of the energy costs involved in over-ground walking in stroke subjects [21]. However, both the heart rate and the ratings of perceived exertion indicated that the walking tests in the current study were not very strenuous, probably because of the low velocity.…”

Section: Discussionsupporting

confidence: 82%

Physical Activity, Ambulation, and Motor Impairment Late after Stroke

Danielsson

Willén

Sunnerhagen

2012

Stroke Research and Treatment

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Objective. To assess walking capacity and physical activity using clinical measures and to explore their relationships with motor impairment late after stroke. Subjects. A nonrandomised sample of 22 men and 9 women with a mean age of 60 years, 7–10 years after stroke. Methods. Fugl-Meyer Assessment, maximum walking speed, 6 min walk test, perceived exertion, and heart rate were measured, and the Physiological Cost Index was calculated. Physical activity was reported using The Physical Activity Scale for the Elderly. Results. Mean (SD) 6 min walking distance was 352 (±136) m, and Physiological Cost Index was 0.60 (±0.41). Self-reported physical activity was 70% of the reference. Motor impairment correlated with walking capacity but not with the physical activity level. Conclusion. It may be essential to enhance physical activity even late after stroke since in fairly young subjects both walking capacity and the physical activity level were lower than the reference.

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Section: Discussionsupporting

confidence: 82%

Physical Activity, Ambulation, and Motor Impairment Late after Stroke

Danielsson

Willén

Sunnerhagen

2012

Stroke Research and Treatment

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“…The PCI protocol has shown acceptable reliability among individuals with lower-limb amputation. 26 Although not part of the OPRA study protocol, a description of the prosthesis at each time point was included in the current study. This was recorded by a certified prosthetist and is described in table 1.…”

Section: Methodsmentioning

confidence: 99%

Outcome of Percutaneous Osseointegrated Prostheses for Patients With Unilateral Transfemoral Amputation at Two-Year Follow-Up

Hagberg

Hanssoń

Brånemark

2014

Archives of Physical Medicine and Rehabilitation

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“…The PCI was calculated as the difference between walking and resting heart rate divided by the distance (meters) walked. This score has high test-retest reproducibility among individuals with lower-limb amputations and healthy adults, and acceptable intraclass correlation [13]. In a study by Fredrickson et al [9], comparing healthy adults and stroke victims, the PCI was validated as an appropriate proxy for the oxygen cost of walking with a correlation coefficient to oxygen consumption of r = 0.83; the correlation coefficient of the PCI to walking speed was reported as r = À0.461.…”

Section: Methodsmentioning

confidence: 99%