An interventional study of Creatine Monohydrate and Control in Fatigue, sponsored by Ward Dobbs. Completed at 1 site in United States. Open to male participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-12-15.
Sponsored by Ward Dobbs · Not applicable, Interventional, and Other
The purpose of this study was to assess the usefulness of protein and carbohydrate supplementation, with and without creatine, on occupational performance in firefighters. Research has examined the effects of adding creatine to whey protein and carbohydrates on training adaptations in resistance-trained individuals with mixed finding.
Furthermore, the ergogenic benefit of protein and carbohydrate supplementation, with or without creatine, in firefighters is largely unknown. Therefore, the primary aim of the current study was to examine the effects of protein and carbohydrate supplementation, with or without creatine, on occupational performance in firefighters.
1,860 studies on the registry are indexed under Fatigue; 376 are open to participants now.
This study's enrollment of 30 is below the median of 54 across 1,440 interventional studies indexed under Fatigue.
Browse Fatigue studies →This is the only study on the registry with Ward Dobbs as lead sponsor.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
25 grams of Whey Protein Isolate + 25 grams of Carbohydrate Powder + 5 grams of Creatine
Dietary Supplement: Creatine Monohydrate
25 grams of Whey Protein Isolate + 25 grams of Carbohydrate Powder only
Dietary Supplement: Control
Participants were assigned to ingest a single serving daily of either A) a 25-gram dose of whey protein isolate + 25-gram dose of carbohydrate powder (ProCarb); or B) a 25-gram dose of Whey Protein Isolate + 25-gram dose of carbohydrate powder + 5-gram dose of creatine monohydrate (Creatine) for a 17-21-day period.
A 25-gram dose of whey protein isolate + 25-gram dose of carbohydrate powder (ProCarb)
Time to completion
Time to completion for tasks including a hose carry, body drag, stair climb, and forcible entry (Keiser sled hammer) for time. For the hose carry, firefighters advanced a 30.48 m section of a charged 4.45 cm hose line over a distance of 30.5 m in a straight line before flowing water for 2 seconds. Rescue consisted of firefighters being instructed to grasp a mannequin (mass 50 kg, height: 180 cm) underneath the shoulders using a "seatbelt" grip and dragging the mannequin 30.5 m backward. This test is known as the body drag. Stair climb consisted of climbing four flights of stairs and returning to the bottom as quickly as possible. In the forcible entry, firefighters struck a simulated forcible entry chopping device (Keiser FORCE Machine, Keiser Co., USA) using a 3.6 kg sledgehammer until completed. The total time to complete each task was recorded, in addition to the total completion time for all tasks summed together.
Time frame: 24 Days
Time Trial
A maximal effort, 3.5 km time trial on an air-braked cycle ergometer (Assault Bike, As-sault Fitness Products, Carlsbad, CA, USA).
Time frame: 24 Days
Plan to share: Undecided — Deidentified data is available upon request.
No publications or documents are linked to this record.
This study is completed, as verified in Dec 2023. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.