Effects of a Familiarization Protocol on Time to Exhaustion Performance
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: time to exhaustion.
- Who it may be relevant to
- Registry conditions: Learning. Basic parameters: 18 years — 40 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Effects of a Familiarization Protocol on Time to Exhaustion Performance Treadmill Running Protocol
Overview
Familiarization is widely recommended before exercise performance testing to improve measurement consistency and reduce learning effects. However, practical constraints often limit researchers to a single-or no-familiarization session, raising the possibility that improvements observed following an intervention may partially reflect increased familiarity with the testing procedure rather than genuine physiological adaptations. This issue may be particularly relevant for time-to-exhaustion (TTE) protocols, which have been reported to exhibit greater between-session variability than self-paced endurance tests. This exploratory analysis examined the magnitude of the familiarization effect during treadmill TTE testing by comparing a familiarization trial with a subsequent experimental trial. Linear mixed-effects models will be used to evaluate changes in TTE performance while accounting for pre-exercise fatigue and recovery, and between-session agreement was assessed using intraclass correlation coefficients and Bland-Altman analysis.
Interventions
- Other time to exhaustion
Time to exhaustion performed at 95% VO2max
Primary outcome measures
- time to exhaustion [Time frame: immediate (0 hours)]
Eligibility criteria
Inclusion criteria
- healthy and physically active
Exclusion criteria
- current or recently injured participants
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- Non-randomized
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Basic science
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT07735507 · LE_TTE