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dc.contributor.author | Earnest, C. P. | |
dc.contributor.author | Morss, Gina M. | |
dc.contributor.author | Wyatt, Frank | |
dc.contributor.author | Jordan, Alexander N. | |
dc.contributor.author | Colson, Sheree | |
dc.contributor.author | Church, T. S. | |
dc.contributor.author | Lucía Mulas, Alejandro | |
dc.date.accessioned | 2016-08-23T12:34:36Z | |
dc.date.available | 2016-08-23T12:34:36Z | |
dc.date.issued | 2004 | |
dc.identifier.citation | Earnest, C. P., Morss, G. M., Wyatt, F. B., Jordan, A. N., Colson, S. N., Church, T. S. … Lucia Mulas, A. (2004). Effects of a Commercial Herbal-Based Formula on Exercise Performance in Cyclists. Medicine & Science in Sports & Exercise, 36(3), 504-509. | spa |
dc.identifier.issn | 01959131 | |
dc.identifier.uri | http://hdl.handle.net/11268/5659 | |
dc.description.abstract | Introduction/Purpose: We examined the effects of a commercially marketed herbal-based formula purported to increase endurance on oxygen consumption (V̇O2) in 17 competitive category III/IV amateur cyclists [mean (SEM) age: 31.1 (1.8) yr; height: 178.5 (1.8) cm; weight: 77.1 (1.6) kg]. Methods: Each cyclist participated in two (pre/post) cycling tests progressing 25 W·4 min-1 starting at 100 W administered in a randomized, placebo-controlled, double-blind fashion. The second trial was performed 14 d after the ingestion of a manufacturer recommended loading phase (4 d × 6 caps·d-1) and a maintenance phase (11 d × 3 caps·d-1). Three treatment capsules contained 1000 mg of Cordyceps sinensis (CS-4) and 300 mg Rhodiola rosea root extract as the primary ingredients; 800 mg of other ingredients included calcium pyruvate, sodium phosphate, potassium phosphate, ribose, and adenosine and 200 mcg of chromium. Results: Using a 2 × 2 ANOVA, we observed no significant treatment effect for any between or within group variables including peak V̇O2 [treatment 4.14 (0.2) L·min-1; placebo 4.10 (0.2) L·min-1], time to exhaustion [treatment 38.47 (1.7) min; placebo 36.95 (1.8) min], peak power output (PO) [treatment 300.00 (12.1) W; placebo 290.63 (12.9) W], or peak heart heart rate. We also observed no differences for any subpeak exercise variable including the PO eliciting 2 mmol·L-1 blood lactate (BLa) [treatment 201.00 (18.1) W; placebo 167.50 (19.2) W] and 4 mmol·L-1 BLa [treatment 235.88 (15.8) W; placebo 244.78 (14.9) W], ventilatory threshold, respiratory compensation point, or V̇O2 L·min-1 and gross efficiency at each stage, Conclusion: A 2-wk ingestion schema of a commercial herbal-based formula is insufficient to elicit positive changes in cycling performance. | spa |
dc.description.sponsorship | Sin financiación | spa |
dc.language.iso | eng | spa |
dc.title | Effects of a Commercial Herbal-Based Formula on Exercise Performance in Cyclists | spa |
dc.type | article | spa |
dc.description.impact | 2.525 JCR (2004) Q1, 3/71 Sport sciences | spa |
dc.identifier.doi | 10.1249/01.MSS.0000125157.49280.AF | |
dc.rights.accessRights | openAccess | spa |
dc.subject.uem | Ciclismo - Aspectos fisiológicos | spa |
dc.subject.uem | Nutrición - Deporte | spa |
dc.subject.unesco | Medicina deportiva | spa |
dc.subject.unesco | Nutrición | spa |
dc.description.filiation | UEM | spa |
dc.peerreviewed | Si | spa |
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