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Running Slopes and Power Performance

31. juli 2015 opdateret af: Alberto Souza de Sá Filho, Universidade Federal do Rio de Janeiro

Concurrent Effect of Running in Different Slopes on Power Performance

The objective of the present study was to determine the effect of interval session running at high intensity with 1% or 10% gradient on the height of the drop jump. The cinematic variables concentric phase, eccentric and contact time were compared after the running session in both conditions in order to explain possible changes in the jump performance. The investigators theorize that the lower eccentric overload in the running to 10% inclination promotes higher deleterious effect on power performance of the lower limbs

Studieoversigt

Detaljeret beskrivelse

Physical training programs are typically composed of activities directed to the development of different valences usually stimulated in the same session. When aerobic activities of long duration prior isokinetic strength exercises, isotonic, or explosive, deleterious effects seem to be induced on performance of these valences. These short and long-term changes in muscle strength and power would be directly associated with repetitive eccentric loads that characterize the endurance running. Gradual increases in the running slope were inversely associated with a proportional reduction in the eccentric loads, which in turn would result in less muscle damage to intra and extrafusal fibers. So, the change in the slope of the race would emerge as an optional way to neutralize the competitive effect on the power performance. The research consisted of five visits. At the initial visit was conducted familiarization to vertical drop jump, and immediately after, the determination of VO2max values and their associated speed (vVO2max). The second visit was a new familiarization for the vertical drop jump followed immediately determining the Time to exhaustion performance in vVO2max (100% of VO2Max). Two jumps were performed on each of the three selected heights (20, 30 and 40 cm) were used in the experimental sessions and control only the height associated with the highest performance. In subsequent visits (third to fifth), participants performed three maximum jumps before and about 10 min after the following conditions: high intensity Interval running a 10% gradient (C10%), 1% grade (C1%) and control condition (CON).

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

25

Fase

  • Ikke anvendelig

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 45 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Han

Beskrivelse

Inclusion Criteria:

  • age: 18 at 45 years
  • no cardiovascular or metabolic problems
  • minimum level of aerobic activity recommended by American College of Sports Medicine

Exclusion Criteria:

  • no joint or muscle injuries
  • no use ergogenic or anabolic resources

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Tildeling: Randomiseret
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Interval Training at 1% incline
Procedure: Initial Drop Jump (20;30;40 cm), Six Stimulus of High Intensity Interval Training at 1% incline, Final Drop Jump (20;30;40 cm)
Six stimuli were performed to exhaustion. The vertical drop jump strategy (height and kinematics) served to establish the magnitude of the concurrent effect
Andre navne:
  • HIIT at 1%
  • High Intensity Interval Training at 1%
Eksperimentel: Interval Training at 10% incline
Procedure: Initial Drop Jump (20;30;40 cm), Six Stimulus of High Intensity Interval Training at 10% incline, Final Drop Jump (20;30;40 cm)
Six stimuli were performed to exhaustion. The vertical drop jump strategy (height and kinematics) served to establish the magnitude of the concurrent effect.
Andre navne:
  • HIIT at 10%
  • High Intensity Interval Training at 10%
Ingen indgriben: Control
Procedure: Initial Drop Jump (20;30;40 cm), 20 min Rest, Final Drop Jump (20;30;40 cm)

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Kinematic of Height Jump
Tidsramme: up to 1 month
the same group (N=25) of subjects performed the experimental procedure in the last three sessions aiming to achieve the highest performance in all three conditions
up to 1 month

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Kinematic of Concentric Phase
Tidsramme: up to 1 month
the same group of subjects performed the experimental procedure in the last three sessions
up to 1 month
Kinematic of Excentric Phase
Tidsramme: up to 1 month
the same group of subjects performed the experimental procedure in the last three sessions
up to 1 month
Kinematic of Contact Time
Tidsramme: up to 1 month
the same group of subjects performed the experimental procedure in the last three sessions
up to 1 month

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Efterforskere

  • Studieleder: Tony Santos, Doctor, Universidade Federal de Pernambuco

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. marts 2012

Primær færdiggørelse (Faktiske)

1. august 2012

Studieafslutning (Faktiske)

1. december 2012

Datoer for studieregistrering

Først indsendt

29. juli 2015

Først indsendt, der opfyldte QC-kriterier

31. juli 2015

Først opslået (Skøn)

3. august 2015

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

3. august 2015

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

31. juli 2015

Sidst verificeret

1. juli 2015

Mere information

Begreber relateret til denne undersøgelse

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Interval Training at 1% incline

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