Reliability and Validity of a Self-paced Cardiopulmonary Exercise Test in Post-MI Patients

Jenkins, Lauren A.; Mauger, Alexis R.; Fisher, Jane; Hopker, James G.

doi:10.1055/s-0042-122818

Cited by 10 publications

(13 citation statements)

References 52 publications

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“…Furthermore, the difference in absolute between the two protocols was not approaching statistical significance. For evidence of a systematic difference, one would expect a similar statistical difference in both relative and absolute measures of [23,27]. Conspicuously other studies showing an increased relative during PRET max have not reported the accompanying absolute values [16–18].…”

Section: Discussionmentioning

confidence: 88%

“…Previously Straub et al [20] found CV for of 4% for RAMP and 3% for PRET max , whilst Jenkins et al [27] report values of 4.7% and 8.2% for healthy individuals and cardiac rehabilitation patients, respectively. Corresponding results of 4.8% for RAMP and 4.1% for PRET max in the present study support the reliability of the PRET max .…”

Section: Discussionmentioning

confidence: 99%

“…The combination of equivocal findings with methodological and statistical analysis discrepancies make it difficult to draw firm conclusions as to the use of the PRET max for determining compared to RAMP testing. In addition, only a limited number of studies have assessed the reliability of peak physiological responses to the PRET max [20,22,27]. During RAMP, the day-to-day variation for has been characterised as having a coefficient of variation (CV) of 3–4% [28,29].…”

Section: Introductionmentioning

confidence: 99%

“…During RAMP, the day-to-day variation for has been characterised as having a coefficient of variation (CV) of 3–4% [28,29]. A CV of 3% [20] and 4.7% [27] in have been observed from repeat PRET max trials, although corroborating evidence is required in order to support these results.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of peak oxygen uptake during handcycling: Test-retest reliability and comparison of a ramp-incremented and perceptually-regulated exercise test

et al. 2017

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PurposeTo examine the reliability of a perceptually-regulated maximal exercise test (PRETmax) to measure peak oxygen uptake () during handcycle exercise and to compare peak responses to those derived from a ramp-incremented protocol (RAMP).MethodsTwenty recreationally active individuals (14 male, 6 female) completed four trials across a 2-week period, using a randomised, counterbalanced design. Participants completed two RAMP protocols (20 W·min-1) in week 1, followed by two PRETmax in week 2, or vice versa. The PRETmax comprised five, 2-min stages clamped at Ratings of Perceived Exertion (RPE) 11, 13, 15, 17 and 20. Participants changed power output (PO) as often as required to maintain target RPE. Gas exchange variables (oxygen uptake, carbon dioxide production, minute ventilation), heart rate (HR) and PO were collected throughout. Differentiated RPE were collected at the end of each stage throughout trials.ResultsFor relative , coefficient of variation (CV) was equal to 4.1% and 4.8%, with ICC(3,1) of 0.92 and 0.85 for repeated measures from PRETmax and RAMP, respectively. Measurement error was 0.15 L·min-1 and 2.11 ml·kg-1·min-1 in PRETmax and 0.16 L·min-1 and 2.29 ml·kg-1·min-1 during RAMP for determining absolute and relative , respectively. The difference in between PRETmax and RAMP was tending towards statistical significance (26.2 ± 5.1 versus 24.3 ± 4.0 ml·kg-1·min-1, P = 0.055). The 95% LoA were -1.9 ± 4.1 (-9.9 to 6.2) ml·kg-1·min-1.ConclusionThe PRETmax can be used as a reliable test to measure during handcycle exercise in recreationally active participants. Whilst PRETmax tended towards significantly greater values than RAMP, the difference is smaller than measurement error of determining from PRETmax and RAMP.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessment of peak oxygen uptake during handcycling: Test-retest reliability and comparison of a ramp-incremented and perceptually-regulated exercise test

et al. 2017

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“…We have serious concerns regarding the safety implications of the study by Jenkins et al [9]. The authors assert that "…the SPV [self-paced peak oxygen uptake test] may be a safe, valid and reliable measure of peak oxygen uptake (VO 2peak ) in both clinical and healthy populations".…”

mentioning

confidence: 99%

Safety Concerns regarding article: Reliability and Validity of a Self-paced Cardiopulmonary Exercise Test in Post-MI Patients. L. A. Jenkins, A. Mauger, J. Fisher, J. Hopker. Int J Sports Med 2017; 38: 300–306.

Selig

Borg²,

Runciman

et al. 2017

Int J Sports Med

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Age differences in physiological responses to self-paced and incremental $$\dot{V}{\text{O}}_{2\hbox{max} }$$ V ˙ O 2 max testing

2016

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PurposeA self-paced maximal exercise protocol has demonstrated higher values when compared against traditional tests. The aim was to compare physiological responses to this self-paced protocol (SPV) in comparison to a traditional ramp (RAMP) protocol in young (18–30 years) and old (50–75 years) participants.MethodsForty-four participants (22 young; 22 old) completed both protocols in a randomised, counter-balanced, crossover design. The SPV included 5 × 2 min stages, participants were able to self-regulate their power output (PO) by using incremental ‘clamps’ in ratings of perceived exertion. The RAMP consisted of either 15 or 20 W min−1.ResultsExpired gases, cardiac output (Q), stroke volume (SV), muscular deoxyhaemoglobin (deoxyHb) and electromyography (EMG) at the vastus lateralis were recorded throughout. Results demonstrated significantly higher in the SPV (49.68 ± 10.26 ml kg−1 min−1) vs. the RAMP (47.70 ± 9.98 ml kg−1 min−1) in the young, but not in the old group (>0.05). Q and SV were significantly higher in the SPV vs. the RAMP in the young (<0.05) but not in the old group (>0.05). No differences seen in deoxyHb and EMG for either age groups (>0.05). Peak PO was significantly higher in the SPV vs. the RAMP in both age groups (<0.05).ConclusionFindings demonstrate that the SPV produces higher , peak Q and SV values in the young group. However, older participants achieved similar values in both protocols, mostly likely due to age-related differences in cardiovascular responses to incremental exercise, despite them achieving a higher physiological workload in the SPV.

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Reliability and Validity of a Self-paced Cardiopulmonary Exercise Test in Post-MI Patients

Cited by 10 publications

References 52 publications

Assessment of peak oxygen uptake during handcycling: Test-retest reliability and comparison of a ramp-incremented and perceptually-regulated exercise test

Assessment of peak oxygen uptake during handcycling: Test-retest reliability and comparison of a ramp-incremented and perceptually-regulated exercise test

Safety Concerns regarding article: Reliability and Validity of a Self-paced Cardiopulmonary Exercise Test in Post-MI Patients. L. A. Jenkins, A. Mauger, J. Fisher, J. Hopker. Int J Sports Med 2017; 38: 300–306.

Age differences in physiological responses to self-paced and incremental $$\dot{V}{\text{O}}_{2\hbox{max} }$$ V ˙ O 2 max testing

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