An observational study in Fatigue and Physical Exercise, sponsored by University of Maia. Recruiting at 1 site in Portugal. Open to male participants aged 16 Years to 21 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-06-13.
Sponsored by University of Maia · Observational
Among 11 studies in Fatigue with a site in Portugal — 3 open to participants now, 4 under way, 1 of them phase 3. Fatigue · Portugal.
Among the 11 studies in Fatigue with a site in Portugal, this one is one of 3 that started in 2024, is one of 5 observational ones, and was the 7th registered.
2,229 studies on the registry are indexed under Fatigue; 426 are open to participants now.
Browse Fatigue studies →3 of the 11 studies in Fatigue with a site in Portugal are open now. Recruiting first, the newest first:
Novartis Pharmaceuticals · Sites in Portugal, United States, Australia and 17 more countries
Faculdade de Motricidade Humana · Sites in Portugal
A study can be open while its sites in Portugal have not opened yet or have stopped. Only those recruiting at a site in Portugal →
Of the 240 Fatigue studies recruiting now, 112 (47%) set no upper age limit and 98 (41%) stop at 75 or younger; 24 take children under 18; 74 take healthy volunteers.
This study: 16 Years to 21 Years · male · healthy volunteers too.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
11 studies; the count open now beside each. This study's row is marked.
First in 2006; this study’s year is marked. 3 started in 2024.
This study's planned enrollment of 40 is below the median of 99 across 406 observational studies indexed under Fatigue.
Median enrollment 55 across the 6 interventional studies, 200 across the 5 observational. Of the 5 that completed or were terminated, 1 (20%) have results posted.
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3 of 11 have an industry lead sponsor. The 8 most frequent:
University of Maia is the lead sponsor of 21 studies on the registry; 13 are open to participants now.
University of Maia has 5 studies filed under Fatigue — fewer than ten, so there is no comparison to draw.
None of the studies under way reaches primary completion within a year.
Among the 11 studies in Fatigue with a site in Portugal, from their registry updates:
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Over the recent years, the increased competitive demands in elite competitive athletes has sparked a heightened interest in monitoring fatigue. Given the nature of the soccer game, athletes may experience low-frequency fatigue. Until recently, this assessment was restricted to in-lab. However, the emergence of new instruments aiming to allow low-frequency assessment to be carried out on a daily basis, in the context of professional teams. This study aimed to analyze the recovery of low-frequency fatigue, jump height and perceptual responses following competition and investigate possible associations between the objective and subjective parameters.
Players at the highest division of the portuguese national championships in their respective age group.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Pre-programmed muscle electrical stimuli will be applied via Myocene® software using 3 electrodes: 1 cathode (5 x 10 cm) placed transversely over the proximal quadriceps femoris, and 2 anodes (5 x 5 cm) over the distal vastus medialis and vastus lateralis. Sixteen sets of stimuli will be administered with 5 seconds between sets. Each set consists of a single pulse, a train of 5 stimuli at 20 Hz, and a train of 18 stimuli at 120 Hz, with 1-second intervals between. The stimulation intensity starts at 25 mA and increases by 1 mA per set, reaching 40 mA in the final set. The Myocene® software calculates the ratio of low- to high-frequency evoked forces within each set. The outcome (Powerdex) is the median value of these 16 ratios for each leg. This evaluation will be conducted on both legs, taking 2 minutes per leg.
Differences in Low frequency fatigue measured using Myocene (eletrical stimulus and force measurement)
Assessment using myocene. Muscles are stimulated with low-frequency electrical pulses. The response of the muscle (force or torque) output, is recorded. A decrease in force output compared to baseline levels indicates fatigue.
Time frame: 2 hours before the match; 30 minutes following the match, 24 hours following the match; 48 hours following the match
Plan to share: Undecided
No publications or documents are linked to this record.
Start is estimated for Jul 2024; primary completion for Aug 2024, 1 month later.
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University of Maia