Pedal Rate Influence on Oxygen Consumption in Eccentric
PRIOx
1 other identifier
interventional
15
1 country
1
Brief Summary
Nowadays, ECC exercise can be realized using various modalities that target small or large muscle masses in a segmentary or dynamic way. The training program proposed in this study is realised on an handmade ergocycle which allows eccentric contractions. With this type of ergometer, O2 consumption (VO2) is three to five fold lower than during an exercise realised at the same power output with a concentric ergocycle. Due to this later propertie, which origins are not yet fully identified, there is an increasing interest to embed ECC in rehabilitation programs. The investigators hypothesis that a higher pedal rate will induce a lower oxygen consumption, with the same benefits. This study aims to compare oxygen consumption at two pedal rates : 50 and 80 rotation per minute (rpm). The ultimate goal is to assess efficacy and tolerance of eccentric training on ergocycle and to enhance comprehension of the physiological mecanisms involved in the lower O2 consumption observed.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable healthy
Started Aug 2015
Typical duration for not_applicable healthy
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 9, 2015
CompletedStudy Start
First participant enrolled
August 1, 2015
CompletedFirst Posted
Study publicly available on registry
November 3, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2016
CompletedJuly 29, 2016
July 1, 2016
1.1 years
July 9, 2015
July 28, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Oxygen consumption (VO2 ml/min)
Oxygen consumption (VO2) is continuously assesse during exercises at 50 and 80 rpm.
at day 1
Secondary Outcomes (4)
Cardiac output( l/min)
at day 1
muscular oxygen kinetic (arbitrary unit and %)
at day 1
Muscular activity (mV)
at day 1 during one and half minute (1min30s)
VO2 (ml/min)
at day 1
Study Arms (2)
pedal rate ON 50 RPM
EXPERIMENTALpedal rate on 80 RPM
EXPERIMENTALInterventions
All measurements are performed in two pedalling situations. The two frequencies used will be 50 and 80 RPM. For each subject the running order (50 and 80, 80 and 50) is randomly determined
All measurements are performed in two pedalling situations. The two frequencies used will be 50 and 80 RPM. For each subject the running order (50 and 80, 80 and 50) is randomly determined
Eligibility Criteria
You may qualify if:
- \- Males
- IMC \<30
- physically active
- Pmax concentric \> 200W
- Pmax \> Pmax théo sédentaire
You may not qualify if:
- cardio pulmonary, osteo articulary or muscular diseases
- Eccentric based physical activities or sports (weight liftering, alpine skiing)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
CHU Clermont-Ferrand
Clermont-Ferrand, 63003, France
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 9, 2015
First Posted
November 3, 2015
Study Start
August 1, 2015
Primary Completion
September 1, 2016
Study Completion
October 1, 2016
Last Updated
July 29, 2016
Record last verified: 2016-07