Impact of the Exercise Mode on Exercise Capacity

Maeder, Micha T.; Wölber, Thomas; Atefy, Ramin; Gadza, Mirko; Ammann, Peter; Myers, Jonathan; Rickli, Hans

doi:10.1378/chest.128.4.2804

Cited by 47 publications

(39 citation statements)

References 13 publications

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“…Similarities include similar V9O 2 response to the initial exercise stage and similar peak V9E, cardiac frequency and work rate. Peak V9O 2 for treadmill exercise averaged 14% higher than cycle exercise, consistent with previous studies, and probably reflects the larger muscle mass involved in treadmill exercise [1,5,11,26,27]. LAT was lower in cycle compared with treadmill testing in subjects who manifested an LAT.…”

Section: Discussionsupporting

confidence: 88%

Physiological responses to linear treadmill and cycle ergometer exercise in COPD

Hsia¹,

Casaburi²,

Pradhan³

et al. 2009

European Respiratory Journal

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Incremental cardiopulmonary exercise testing work rate ideally increases linearly to the subject's tolerance within approximately 10 min. Widely used treadmill protocols often yield shorter exercise times in debilitated patients. We compared a recently described treadmill protocol featuring linear work rate increase, weight adjustments and a priori exercise tolerance estimates with standard cycle and treadmill protocols. We also compared treadmill and cycle responses to examine mechanisms of oxyhaemoglobin desaturation differences.In total, 16 subjects with chronic obstructive pulmonary disease (COPD; mean¡SD forced expiratory volume in 1 s of 36.5¡10.9% predicted) performed incremental exercise using cycle, linear treadmill and modified Bruce protocols.Initial linear treadmill speed and grade yielded oxygen uptake (V9O 2 ) similar to cycle unloaded pedalling; Bruce protocol first stage elicited much higher V9O 2 . Exercise duration was much shorter in Bruce than in cycle or linear treadmill protocols. At peak exercise, greater desaturation was noted in linear treadmill and Bruce protocols compared with cycle (-8.9¡4.9 versus -8.5¡4.7 versus -3.7¡3.3%; p,0.001); at iso-V9O 2 values this difference widened as exercise proceeded. Iso-V9O 2 desaturation differences were largely related to higher ventilatory response to cycle than to treadmill exercise.The linear incremental treadmill protocol generates responses similar to cycle ergometry in severe COPD. However, cycle ergometry elicits less desaturation than does ambulation, making the linear treadmill protocol advantageous when evaluating COPD patients.

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Section: Discussionsupporting

confidence: 88%

Physiological responses to linear treadmill and cycle ergometer exercise in COPD

Hsia¹,

Casaburi²,

Pradhan³

et al. 2009

European Respiratory Journal

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“…Previous studies had used the cycle ergometer only in studies with healthy and younger individuals, obtaining coefficients of correlation that varied from 0.46 to 0.52 18 , which ratifies the idea that the VSAQ might not be so adequate for this population 10 .…”

Section: Nomogram and Measured Met Differencementioning

confidence: 57%

Validade e equivalência da versão em português do Veterans Specific Activity Questionnaire

Maranhão-Neto¹,

Farinatti²

2011

Arq. Bras. Cardiol.

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“…[14][15][16][17][18][19] are reported as mean (SD). When the original study reported the standard error of the mean, the standard deviation was calculated using the formula: SEM n, where SEM is the standard error of the mean and n is the sample size.…”

Section: Figure Legendmentioning

confidence: 99%