Effects of Gradient and Speed on Uphill Running Gait Variability

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Autor(es): dc.contributorUniversità degli Studi di Milano-
Autor(es): dc.contributorThe Academic College at Wingate-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributor” University of Naples “Federico II,”-
Autor(es): dc.contributorCNR-SPIN Institute-
Autor(es): dc.contributorUniversity of Verona-
Autor(es): dc.contributorUniversity of the West of Scotland-
Autor(es): dc.creatorPadulo, Johnny-
Autor(es): dc.creatorAyalon, Moshe-
Autor(es): dc.creatorBarbieri, Fabio A.-
Autor(es): dc.creatorDi Capua, Roberto-
Autor(es): dc.creatorDoria, Christian-
Autor(es): dc.creatorArdigò, Luca P.-
Autor(es): dc.creatorDello Iacono, Antonio-
Data de aceite: dc.date.accessioned2025-08-21T17:44:18Z-
Data de disponibilização: dc.date.available2025-08-21T17:44:18Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1177/19417381211067721-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/234336-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/234336-
Descrição: dc.descriptionBackground: The aim of this study was to investigate the effects of gradient and speed on running variability (RV) and local dynamic stability (LDS) during uphill running. Hypotheses: (1) Both gradient and speed increase metabolic effort, in terms of heart rate (HR) and perceived exertion (CR10), in line with the contemporary literature, and (2) gradient increases RV and impairs LDS. Study design: “Crossover” observational design. Level of Evidence: Level 3. Methods: A total of 25 runners completed 10-minute running trials in 3 different conditions and in a randomized order: gradient at 0% (0CON), 2% (2CON), and 2% at isoefficiency speed (2IES). 0CON and 2CON speeds were calculated as the “best 10-km race performance” minus 1 km·h−1, whereas 2IES speed was adjusted to induce the same metabolic expenditure as 0CON. HR and perceived exertion as well as running kinematic variables were collected across all trials and conditions. Running variability was calculated as the standard deviation of the mean stride-to-stride intervals over 100 strides, while LDS was expressed by the Lyapunov exponent (LyE) determined on running cycle time over different running conditions. Results: Increases in HR and CR10 were observed between 0CON and 2CON (P < 0.001) and between 2IES and 2CON (P < 0.01). Higher RV was found in 2CON compared with 0CON and 2IES (both P < 0.001). Finally, the largest LyE was observed in 2IES compared with 0CON and 2CON (P = 0.02 and P = 0.01, respectively). Conclusion: Whereas RV seems to be dependent more on metabolic effort, LDS is affected by gradient to a greater extent. Clinical Relevance: Running variability could be used to monitor external training load in marathon runners.-
Descrição: dc.descriptionDepartment of Biomedical Sciences for Health Università degli Studi di Milano, Milan-
Descrição: dc.descriptionThe Academic College at Wingate-
Descrição: dc.descriptionHuman Movement Research Laboratory (MOVI-LAB) Department of Physical Education São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Physics “E. Pancini ” University of Naples “Federico II,”-
Descrição: dc.descriptionCNR-SPIN Institute-
Descrição: dc.descriptionSchool of Exercise and Sport Science Department of Neurosciences Biomedicine and Movement Sciences University of Verona-
Descrição: dc.descriptionSchool of Health and Life Sciences University of the West of Scotland-
Descrição: dc.descriptionHuman Movement Research Laboratory (MOVI-LAB) Department of Physical Education São Paulo State University (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationSports Health-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectendurance runners-
Palavras-chave: dc.subjectgait-
Palavras-chave: dc.subjectmetabolic demand-
Palavras-chave: dc.subjectperceived exertion-
Palavras-chave: dc.subjectstride-to-stride-
Título: dc.titleEffects of Gradient and Speed on Uphill Running Gait Variability-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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