dc.contributor.author
Fleckenstein, Daniel
dc.contributor.author
Ueberschär, Olaf
dc.contributor.author
Wüstenfeld, Jan C.
dc.contributor.author
Rüdrich, Peter
dc.contributor.author
Wolfarth, Bernd
dc.date.accessioned
2021-09-03T13:00:32Z
dc.date.available
2021-09-03T13:00:32Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/31821
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-31554
dc.description.abstract
Lower body positive pressure treadmills (LBPPTs) as a strategy to reduce musculoskeletal load are becoming more common as part of sports conditioning, although the requisite physiological parameters are unclear. To elucidate their role, ten well-trained runners (30.2 +/- 3.4 years; VO2max: 60.3 +/- 4.2 mL kg(-1) min(-1)) ran at 70% of their individual velocity at VO2max (vVO(2max)) on a LBPPT at 80% body weight support (80% BWSet) and 90% body weight support (90% BWSet), at 0%, 2% and 7% incline. Oxygen consumption (VO2), heart rate (HR) and blood lactate accumulation (LA) were monitored. It was found that an increase in incline led to increased VO2 values of 6.8 +/- 0.8 mL kg(-1) min(-1) (0% vs. 7%, p < 0.001) and 5.4 +/- 0.8 mL kg(-1) min(-1) (2% vs. 7%, p < 0.001). Between 80% BWSet and 90% BWSet, there were VO2 differences of 3.3 +/- 0.2 mL kg(-1) min(-1) (p < 0.001). HR increased with incline by 12 +/- 2 bpm (0% vs. 7%, p < 0.05) and 10 +/- 2 bpm (2% vs. 7%, p < 0.05). From 80% BWSet to 90% BWSet, HR increases of 6 +/- 1 bpm (p < 0.001) were observed. Additionally, LA values showed differences of 0.10 +/- 0.02 mmol l(-1) between 80% BWSet and 90% BWSet. Those results suggest that on a LBPPT, a 2% incline (at 70% vVO(2max)) is not yet sufficient to produce significant physiological changes in VO2, HR and LA-as opposed to running on conventional treadmills, where significant changes are measured. However, a 7% incline increases VO2 and HR significantly. Bringing together physiological and biomechanical factors from previous studies into this practical context, it appears that a 7% incline (at 80% BWSet) may be used to keep VO2 and HR load unchanged as compared to unsupported running, while biomechanical stress is substantially reduced.
en
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
anti-gravity treadmill
en
dc.subject
body weight support
en
dc.subject
graded running
en
dc.subject.ddc
600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit
dc.title
Effect of Uphill Running on VO2, Heart Rate and Lactate Accumulation on Lower Body Positive Pressure Treadmills
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
51
dcterms.bibliographicCitation.doi
10.3390/sports9040051
dcterms.bibliographicCitation.journaltitle
Sports
dcterms.bibliographicCitation.number
4
dcterms.bibliographicCitation.originalpublishername
MDPI AG
dcterms.bibliographicCitation.volume
9
refubium.affiliation
Charité - Universitätsmedizin Berlin
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.bibliographicCitation.pmid
33917341
dcterms.isPartOf.eissn
2075-4663