Essential Amino Acids and High Intensity Interval Training

NCT04080102 | Completed DMC

• 1 other identifier: 18-2726
• Study Type: interventional
• Target: 84
• Locations: 1 country
• Sites: 1

Brief Summary

Purpose: The primary purpose is to determine the combined effects of essential amino acids (EAA) supplementation and high intensity interval training (HIIT) on body composition, muscle characteristics, and muscle architecture in overweight men and women over the course of eight weeks. A secondary purpose is to determine the metabolic effects of EAA supplementation and HIIT on whole body protein turnover, metabolic rate, substrate metabolism, and metabolomics. A tertiary purpose is to evaluate the modulatory effects of sex on body composition, metabolism, metabolic profile, cardiorespiratory fitness, and hunger and satiety in response to EAA supplementation and HIIT. Participants: Healthy overweight and obese men and women (30-50 years) Procedures (methods): In a block randomized design, 78 healthy, overweight or obese men and women will be randomized, to one of four, eight-week intervention groups using a 2:2:2:1 group allocation design: 1) essential amino acids (EAA) supplementation (7.2 grams EAA daily); 2) HIIT, two days per week of cycle ergometry training; 3) EAA + HIIT; or 4) control (CON), receiving no intervention. Measurements of body composition, muscle characteristics, resting metabolic rate, substrate metabolism, and cardiorespiratory fitness will be measured at baseline, 4-weeks, and 8-weeks. Metabolomics and whole body protein turnover will also be measured at baseline and 8-weeks. Subjects will be asked to arrive to testing sessions following a 12 hour fast (except for water), consuming no food, caffeine, or alcohol. Participants will also be asked to abstain from physical activity for 24 hours prior to testing. Subjects will complete one electronic contact (phone/email screening) and up to 22 in-person sessions (enrollment; 5 testing sessions \[2 at base, 1 at 4week, 2 at 8week\]; 16 training sessions \[for HIIT and EAA+HIIT\]) over the course of 8 weeks.

Conditions

Cardiovascular Risk Factor; Obesity

Outcome Measures

Primary Outcomes (2)

• Fat Free Mass (kg)

  Determined from a multi-compartment model

  8 weeks

• Fat mass (kg)

  Determined from a multi-compartment model

  8 weeks

Secondary Outcomes (2)

• Muscle cross sectional area (cm3)

  8 weeks

• Echo intensity (a.u.)

  8 weeks

Other Outcomes (1)

• Metabolic rate (kcal/day)

  8 weeks

Study Arms (4)

High intensity interval training (HIIT)

EXPERIMENTAL

Other: High Intensity Interval Training

Essential Amino Acid Supplement

EXPERIMENTAL

Dietary Supplement: Essential Amino Acid

High intensity interval training + Essential Amino Acid

EXPERIMENTAL

Other: High intensity interval training and essential amino acid supplement

Control

NO INTERVENTION

Interventions

High Intensity Interval Training OTHER

Exercise

High intensity interval training (HIIT)

Essential Amino Acid DIETARY_SUPPLEMENT

Oral ingestion of a powdered dietary supplement

Essential Amino Acid Supplement

High intensity interval training and essential amino acid supplement OTHER

Exercise and dietary supplement

High intensity interval training + Essential Amino Acid

Eligibility Criteria

• Age: 30 Years - 50 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Men and women (25-50 years).
• Overweight and obese: body mass index (BMI) of 27 - 40 kg·m-2 and/or percent body fat \> 25% for men, and BMI of 25 - 40 kg·m-2 and/or Percent Body Fat \> 30% for women.
• Healthy, non-smokers.
• Women: eumenorrheic, reporting consistent menstruation, having 3 regular cycles in the 3 months prior to enrollment, and not pregnant or planning on becoming pregnant.

You may not qualify if:

• Have current and/or history of cardiovascular disease, diabetes, metabolic, thyroid, pulmonary, renal, hepatic, gastrointestinal, musculoskeletal disorders or medical or surgical events, such as bariatric surgery, heart surgery, or any joint or musculoskeletal surgeries occurring in the 6-months prior to enrollment, that may significantly influence study outcomes or prevent safe participation.
• Have uncontrolled hypertension or an abnormal electrocardiogram.
• Have a diagnosed mental disorder
• Inconsistently taking medications or taking medications that may influence study outcomes.
• Participating in more than 150 minutes per week of moderate exercise, more than 2 days per week of resistance training, or currently participating in high intensity interval training or participated in HIIT within the previous 12 weeks.
• Lost or gained greater than eight pounds within three months prior to the enrollment.
• Currently consuming a high protein diet (,1.6 g·kg-1·day-1 and \<25% of calories from protein).
• Currently consuming meal replacements or dietary supplements that may taurine, or beta-hydroxy beta-methylbutyrate) within eight weeks prior to the enrollment date.
• Reports any known sensitivity to the Essential Amino Acid treatment.
• Has participated in another clinical trial within four weeks prior to enrollment that in the opinion of the PI would influence the results.
• Has severely impaired hearing or speech or inability to speak English.
• Unwilling or unable to comply with the study protocol, including abstaining from, caffeine, tobacco, alcohol, and physical activity before testing days.

Sponsors & Collaborators

• University of North Carolina, Chapel Hill: lead
• National Strength and Conditioning Association: collaborator

Study Sites (1)

Applied Physiology Laboratory, Fetzer Hall Room 25

Chapel Hill, North Carolina, 27599, United States

Location

Related Publications (1)

• Hirsch KR, Greenwalt CE, Cabre HE, Gould LM, Brewer GJ, Blue MNM, Ferrando AA, Huffman KM, Mayer-Davis EJ, Ryan ED, Smith-Ryan AE. Metabolic effects of high-intensity interval training and essential amino acids. Eur J Appl Physiol. 2021 Dec;121(12):3297-3311. doi: 10.1007/s00421-021-04792-4. Epub 2021 Aug 24.

  PMID: 34427732 DERIVED

MeSH Terms

Conditions

Obesity

Interventions

High-Intensity Interval Training; Amino Acids, Essential

Condition Hierarchy (Ancestors)

Overweight; Overnutrition; Nutrition Disorders; Nutritional and Metabolic Diseases; Body Weight; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Physical Conditioning, Human; Exercise; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena; Amino Acids; Amino Acids, Peptides, and Proteins

Study Officials

• Abbie Smith-Ryan, PhD

  University of North Carolina, Chapel Hill

  STUDY DIRECTOR

• Katie Hirsch, MA

  University of North Carolina, Chapel Hill

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: August 26, 2019
• First Posted: September 6, 2019
• Study Start: March 1, 2019
• Primary Completion: January 5, 2020
• Study Completion: January 5, 2020
• Last Updated: April 30, 2020

Record last verified: 2020-04

Data Sharing

• IPD Sharing: Will share
• Time Frame: Deidentified individual data that supports the results will be shared beginning 12 to 24 months following publication.
• Access Criteria: An investigator who proposes to use the data must have approval from an Institutional Review Board (IRB), Independent Ethics Committee (IEC), or Research Ethics Board (REB), as applicable, and execute a data use/sharing agreement with UNC.

Locations

US (1)