Healthy
Conditions
Keywords
Blood-flow restriction training, acute physiological response, eccentric training
Brief summary
Decreasing workloads in strength training makes it more tolerable for a broad range of people. When designed as blood-flow restriction training, similar gains in strength and muscle mass are achieved compared to traditional training. Adding high training loads to blood-flow restriction training only in the eccentric phase (BFR-ECC) might achieve superior gains in muscle strength while still maximizing tolerability of the training stimuli. This study aims to investigate the acute physiological and perceptual response of blood-flow restriction training with eccentric loading in comparison to traditional eccentric training. The study recruits healthy individuals ≥ 18 years.
Interventions
OTHEREccentric blood-flow restriction training
Eccentric blood-flow restriction training
OTHEREccentric free-flow training
Eccentric free-flow training
Sponsors
Dario Kohlbrenner
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
NONE
Intervention model description
With random sequence allocation
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Clinically Healthy
Exclusion criteria
* Physical or intellectual impairment precluding informed consent or protocol adherence * Pain during exercise of any origin * History of thromboembolic event in the lower extremity * Known pregnancy (no testing is carried out)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| minute ventilation | During the intervention (i.e., exercise) for 10 minutes | recorded with breath-by-breath analysis |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Other variables from breath-by-breath analysis | During the intervention (i.e., exercise) for 10 minutes | VO2, VCO2, RER, breath rate, heart rate |
| Rate of perceived exertion | Immediately after the intervention (i.e., exercise) | Numeric rating scale from 0-10. Participants rate perceived leg exertion and perceived respiratory exertion |
| Near-infrared spectroscopy of the vastus lateralis | During the intervention (i.e., exercise) for 10 minutes | Tissue saturation |
| Delayed onset muscle soreness | 24, 48, and 72 hours after each of the intervention (i.e., exercise) | Numeric rating scale 0-10 rating intensity of DOMS symptoms |
| Feasibility and tolerability | After study completion (i.e., after the second study visit, up to 2 weeks) | Custom-made questionnaire |
Countries
Switzerland
Outcome results
None listed