NCT03678285

Brief Summary

The proposed work is designed to be the first in a series of studies investigating the health benefits and risks related to high intensity training (HIT) exercise. Our specific aims are to determine, 1) if participation in a single bout of HIT induces hematological markers consistent with acute kidney injury (AKI), and 2) if risk is predicted by the pre-exercise concentration of plasma proenkephalin-A. This investigation is an observational case control study. In year one, data collection procedures will be refined with \~40 participants local to the University of Wyoming and training will occur for collaborators from Wyoming community and tribal colleges. In year two, data collection will expand to some of the 12 CrossFit® gyms in Wyoming with assistance from the community and tribal colleges. Blood and urine samples will be collected before and up to 48 h after a standardized bout of HIT exercise on \~100 participants. Baseline blood samples will be analyzed for proenkephalin-A. All blood samples will be analyzed for markers of muscle damage (e.g., creatine kinase and myoglobin), and markers of kidney function (e.g., serum creatinine and blood urea nitrogen). Urine will be analyzed for markers of filtration function (e.g., albumin, creatinine, neutrophil gelatinase-associated lipocalin \[NGAL\], and kidney injury molecule 1 \[KIM-1\]). Lastly, the severity of kidney damage will be compared with the number of risk alleles and proenkephalin-A concentration. The investigators envision that the bout of HIT exercise will induce markers consistent with skeletal muscle damage in most participants and, based on literature from other styles of intense exercise, that acute kidney injury will be diagnosable in between 50-75% of participants. Secondarily, the investigators predict that the concentration of proenkephalin-A will be inversely related to the change in kidney function from before to after the HIT exercise bout.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
42

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2018

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 30, 2018

Completed
20 days until next milestone

First Posted

Study publicly available on registry

September 19, 2018

Completed
12 days until next milestone

Study Start

First participant enrolled

October 1, 2018

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 30, 2019

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2019

Completed
1.8 years until next milestone

Results Posted

Study results publicly available

April 19, 2021

Completed
Last Updated

July 16, 2021

Status Verified

June 1, 2021

Enrollment Period

8 months

First QC Date

August 30, 2018

Results QC Date

January 5, 2021

Last Update Submit

June 28, 2021

Conditions

Keywords

High intensity exerciseProenkephalin-A

Outcome Measures

Primary Outcomes (5)

  • Change in Concentration of Proenkephalin-A From Baseline to 4 Time-points Surrounding the Workout

    an endogenous opioid polypeptide hormone which, via proteolytic cleavage, produces the enkephalin peptides \[Met\]enkephalin, and to a lesser extent, \[Leu\]enkephalin.

    Baseline, Immediately pre-exercise, immediately post-exercise, 24 hours post-exercise, 48 hours post-exercise

  • Change in Serum Creatinine

    Marker of kidney function measured as a change in concentration between baseline to 4 time-points surrounding the workout

    Baseline, Immediately pre-exercise, immediately post-exercise, 24 hours post-exercise, 48 hours post-exercise.

  • Change in Creatinine Kinase

    Marker of skeletal muscle damage measured as a change in concentration between baseline and 4 time-points surrounding exercise

    Baseline, Immediately pre-exercise, immediately post-exercise, 24 hours post-exercise, 48 hours post-exercise

  • Change in 24 Hour Urinary Kidney Injury Molecule 1

    Marker of Kidney Injury measured as a change in concentration between baseline to 2 time points surrounding exercise

    Baseline, Day 2, Day 3

  • Change in 24 Hour Urinary Neutrophil Gelatinase-associated Lipocalin

    Marker of kidney damage measured as a change in concentration between baseline and 2 time points surrounding the exercise

    Baseline, Day 2, Day 3

Secondary Outcomes (2)

  • Change in the Short-form McGill Pain Questionnaire

    Baseline, immediately pre-exercise, immediately post-exercise, 24 hours post-exercise, 48 hours post-exercise

  • Post Exercise Hypotension

    Baseline, immediately pre-exercise, immediately post-exercise, 24 hours post-exercise, 48 hours post-exercise

Study Arms (1)

HIFRT Workout

EXPERIMENTAL

Consecutive completion of; 1 mile run, 100 pull ups, 200 push-ups, 300 bodyweight squats, 1 mile run.

Other: HIFRT Workout

Interventions

A single high intensity functional resistance training (HIFRT) exercise bout.

HIFRT Workout

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • \. Healthy individual who has completed this specific workout on at least one prior occasion

You may not qualify if:

  • Score of "0" on the Functional Movement Screening (FMS) test as evaluated by two investigators \* indicating pain during any of the seven functional movements
  • Self- reported Kidney (chronic kidney disease, polycystic kidney disease, glomerulonephritis, diabetic nephropathy, interstitial nephritis, Goodpasture syndrome) or other medical condition contraindicating participation in HIFRT (Hypertension, dyslipidemia, type II diabetes mellitus, BMI \>30)
  • Pregnancy, suspected pregnancy, or breastfeeding
  • Blood donations within the last eight weeks leading up to testing day
  • Any musculoskeletal injuries which have resulted in \> 1 week of absence from HIFRT within the last six months
  • Not passing the physical activity readiness questionnaire (PAR-Q)
  • Allergy to ibuprofen or non-steroidal anti-inflammatory medication
  • Surgical operation on digestive tract or kidneys, except appendectomy
  • Inability to participate in the entire study
  • Recurrent urinary tract infections or kidney stones
  • History of protein or blood in urine
  • Moving from a location of low altitude (\< 3,000') to Laramie within the past 3 months
  • Inability to understand and write English

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Wyoming

Laramie, Wyoming, 82071, United States

Location

Related Publications (4)

  • Poston WS, Haddock CK, Heinrich KM, Jahnke SA, Jitnarin N, Batchelor DB. Is High-Intensity Functional Training (HIFT)/CrossFit Safe for Military Fitness Training? Mil Med. 2016 Jul;181(7):627-37. doi: 10.7205/MILMED-D-15-00273.

    PMID: 27391615BACKGROUND
  • Bergeron MF, Nindl BC, Deuster PA, Baumgartner N, Kane SF, Kraemer WJ, Sexauer LR, Thompson WR, O'Connor FG. Consortium for Health and Military Performance and American College of Sports Medicine consensus paper on extreme conditioning programs in military personnel. Curr Sports Med Rep. 2011 Nov-Dec;10(6):383-9. doi: 10.1249/JSR.0b013e318237bf8a.

    PMID: 22071400BACKGROUND
  • Mansour SG, Verma G, Pata RW, Martin TG, Perazella MA, Parikh CR. Kidney Injury and Repair Biomarkers in Marathon Runners. Am J Kidney Dis. 2017 Aug;70(2):252-261. doi: 10.1053/j.ajkd.2017.01.045. Epub 2017 Mar 28.

    PMID: 28363731BACKGROUND
  • Schulz CA, Christensson A, Ericson U, Almgren P, Hindy G, Nilsson PM, Struck J, Bergmann A, Melander O, Orho-Melander M. High Level of Fasting Plasma Proenkephalin-A Predicts Deterioration of Kidney Function and Incidence of CKD. J Am Soc Nephrol. 2017 Jan;28(1):291-303. doi: 10.1681/ASN.2015101177. Epub 2016 Jul 8.

    PMID: 27401687BACKGROUND

MeSH Terms

Conditions

Acute Kidney InjuryMotor Activity

Condition Hierarchy (Ancestors)

Renal InsufficiencyKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesBehavior

Results Point of Contact

Title
Dr. Evan Johnson
Organization
University of Wyoming

Study Officials

  • Evan C Johnson, PhD

    University of Wyoming

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Masking Details
No other parties besides the participants will be masked.
Purpose
SCREENING
Intervention Model
SINGLE GROUP
Model Details: All participants will take part in the same, single bout, exercise intervention
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 30, 2018

First Posted

September 19, 2018

Study Start

October 1, 2018

Primary Completion

May 30, 2019

Study Completion

June 30, 2019

Last Updated

July 16, 2021

Results First Posted

April 19, 2021

Record last verified: 2021-06

Data Sharing

IPD Sharing
Will not share

Locations