Relationship Between the Critical Power Test and a 20-min Functional Threshold Power Test in Cycling
<div><p>To investigate the agreement between critical power (CP) and functional threshold power (FTP), 17 trained cyclists and triathletes (mean ± SD: age 31 ± 9 years, body mass 80 ± 10 kg, maximal aerobic power 350 ± 56 W, peak oxygen consumption 51 ± 10 mL⋅min–1⋅kg–1) performed a maxi...
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2021
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| author | Bettina Karsten (2576641) |
| author2 | Luca Petrigna (6427862) Andreas Klose (2576647) Antonino Bianco (4572946) Nathan Townsend (12302459) Christoph Triska (4688113) |
| author2_role | author author author author author |
| author_facet | Bettina Karsten (2576641) Luca Petrigna (6427862) Andreas Klose (2576647) Antonino Bianco (4572946) Nathan Townsend (12302459) Christoph Triska (4688113) |
| author_role | author |
| dc.creator.none.fl_str_mv | Bettina Karsten (2576641) Luca Petrigna (6427862) Andreas Klose (2576647) Antonino Bianco (4572946) Nathan Townsend (12302459) Christoph Triska (4688113) |
| dc.date.none.fl_str_mv | 2021-01-22T03:00:00Z |
| dc.identifier.none.fl_str_mv | 10.3389/fphys.2020.613151 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Relationship_Between_the_Critical_Power_Test_and_a_20-min_Functional_Threshold_Power_Test_in_Cycling/25878049 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Health sciences Sports science and exercise power-duration relationship exercise tolerance fatigue threshold cycling performance functional threshold power |
| dc.title.none.fl_str_mv | Relationship Between the Critical Power Test and a 20-min Functional Threshold Power Test in Cycling |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <div><p>To investigate the agreement between critical power (CP) and functional threshold power (FTP), 17 trained cyclists and triathletes (mean ± SD: age 31 ± 9 years, body mass 80 ± 10 kg, maximal aerobic power 350 ± 56 W, peak oxygen consumption 51 ± 10 mL⋅min–1⋅kg–1) performed a maximal incremental ramp test, a single-visit CP test and a 20-min time trial (TT) test in randomized order on three different days. CP was determined using a time-trial (TT) protocol of three durations (12, 7, and 3 min) interspersed by 30 min passive rest. FTP was calculated as 95% of 20-min mean power achieved during the TT. Differences between means were examined using magnitude-based inferences and a paired-samples t-test. Effect sizes are reported as Cohen’s d. Agreement between CP and FTP was assessed using the 95% limits of agreement (LoA) method and Pearson correlation coefficient. There was a 91.7% probability that CP (256 ± 50 W) was higher than FTP (249 ± 44 W). Indeed, CP was significantly higher compared to FTP (P = 0.041) which was associated with a trivial effect size (d = 0.04). The mean bias between CP and FTP was 7 ± 13 W and LoA were −19 to 33 W. Even though strong correlations exist between CP and FTP (r = 0.969; P < 0.001), the chance of meaningful differences in terms of performance (1% smallest worthwhile change), were greater than 90%. With relatively large ranges for LoA between variables, these values generally should not be used interchangeably. Caution should consequently be exercised when choosing between FTP and CP for the purposes of performance analysis.</p><p> </p></div><h2>Other Information</h2> <p> Published in: Frontiers in Physiology<br> License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3389/fphys.2020.613151" target="_blank">https://dx.doi.org/10.3389/fphys.2020.613151</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_787bd5973633435139788ca4cd0fa74c |
| identifier_str_mv | 10.3389/fphys.2020.613151 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/25878049 |
| publishDate | 2021 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Relationship Between the Critical Power Test and a 20-min Functional Threshold Power Test in CyclingBettina Karsten (2576641)Luca Petrigna (6427862)Andreas Klose (2576647)Antonino Bianco (4572946)Nathan Townsend (12302459)Christoph Triska (4688113)Health sciencesSports science and exercisepower-duration relationshipexercise tolerancefatigue thresholdcycling performancefunctional threshold power<div><p>To investigate the agreement between critical power (CP) and functional threshold power (FTP), 17 trained cyclists and triathletes (mean ± SD: age 31 ± 9 years, body mass 80 ± 10 kg, maximal aerobic power 350 ± 56 W, peak oxygen consumption 51 ± 10 mL⋅min–1⋅kg–1) performed a maximal incremental ramp test, a single-visit CP test and a 20-min time trial (TT) test in randomized order on three different days. CP was determined using a time-trial (TT) protocol of three durations (12, 7, and 3 min) interspersed by 30 min passive rest. FTP was calculated as 95% of 20-min mean power achieved during the TT. Differences between means were examined using magnitude-based inferences and a paired-samples t-test. Effect sizes are reported as Cohen’s d. Agreement between CP and FTP was assessed using the 95% limits of agreement (LoA) method and Pearson correlation coefficient. There was a 91.7% probability that CP (256 ± 50 W) was higher than FTP (249 ± 44 W). Indeed, CP was significantly higher compared to FTP (P = 0.041) which was associated with a trivial effect size (d = 0.04). The mean bias between CP and FTP was 7 ± 13 W and LoA were −19 to 33 W. Even though strong correlations exist between CP and FTP (r = 0.969; P < 0.001), the chance of meaningful differences in terms of performance (1% smallest worthwhile change), were greater than 90%. With relatively large ranges for LoA between variables, these values generally should not be used interchangeably. Caution should consequently be exercised when choosing between FTP and CP for the purposes of performance analysis.</p><p> </p></div><h2>Other Information</h2> <p> Published in: Frontiers in Physiology<br> License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3389/fphys.2020.613151" target="_blank">https://dx.doi.org/10.3389/fphys.2020.613151</a></p>2021-01-22T03:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.3389/fphys.2020.613151https://figshare.com/articles/journal_contribution/Relationship_Between_the_Critical_Power_Test_and_a_20-min_Functional_Threshold_Power_Test_in_Cycling/25878049CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/258780492021-01-22T03:00:00Z |
| spellingShingle | Relationship Between the Critical Power Test and a 20-min Functional Threshold Power Test in Cycling Bettina Karsten (2576641) Health sciences Sports science and exercise power-duration relationship exercise tolerance fatigue threshold cycling performance functional threshold power |
| status_str | publishedVersion |
| title | Relationship Between the Critical Power Test and a 20-min Functional Threshold Power Test in Cycling |
| title_full | Relationship Between the Critical Power Test and a 20-min Functional Threshold Power Test in Cycling |
| title_fullStr | Relationship Between the Critical Power Test and a 20-min Functional Threshold Power Test in Cycling |
| title_full_unstemmed | Relationship Between the Critical Power Test and a 20-min Functional Threshold Power Test in Cycling |
| title_short | Relationship Between the Critical Power Test and a 20-min Functional Threshold Power Test in Cycling |
| title_sort | Relationship Between the Critical Power Test and a 20-min Functional Threshold Power Test in Cycling |
| topic | Health sciences Sports science and exercise power-duration relationship exercise tolerance fatigue threshold cycling performance functional threshold power |