Low Energy Availability and Recovery From Resistance Exercise (LEAR)

February 10, 2026 updated by: Chaise Murphy
This research project will determine how restricting Calories to lose weight affects your ability to recover between weightlifting exercise sessions.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

8

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • South Dakota
      • Brookings, South Dakota, United States, 57006
        • South Dakota State University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 3 years of resistance training experience

Exclusion Criteria:

  • 1+ American College of Sports Medicine sign(s) or symptom(s) of cardiovascular, metabolic or renal disease(s)
  • musculoskeletal disorder(s)
  • lactose intolerance; soy or dairy allergies

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: CONTROL
Behavioral: Diet
15 kcal per kg fat-free mass
Behavioral: Diet
45 kcal per kg fat-free mass
Experimental: LOW ENERGY AVAILABILITY
Behavioral: Diet
15 kcal per kg fat-free mass
Behavioral: Diet
45 kcal per kg fat-free mass

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Vertical Jump Performance
Time Frame: At enrollment (baseline), wait 1-2 weeks, before and after first 2-day condition, wait 1-2 weeks, before and after second 2-day condition
At enrollment (baseline), wait 1-2 weeks, before and after first 2-day condition, wait 1-2 weeks, before and after second 2-day condition
Knee Extension and Flexion Repetitions to Failure
Time Frame: At enrollment (baseline), wait 1-2 weeks, before and after first 2-day condition, wait 1-2 weeks, before and after second 2-day condition
At enrollment (baseline), wait 1-2 weeks, before and after first 2-day condition, wait 1-2 weeks, before and after second 2-day condition
Bench Press One-Repetition Maximum
Time Frame: At enrollment (baseline), wait 1-2 weeks, before and after first 2-day condition, wait 1-2 weeks, before and after second 2-day condition
At enrollment (baseline), wait 1-2 weeks, before and after first 2-day condition, wait 1-2 weeks, before and after second 2-day condition
Peak Knee Extension and Flexion Torques
Time Frame: At enrollment (baseline), wait 1-2 weeks, before and after first 2-day condition, wait 1-2 weeks, before and after second 2-day condition
At enrollment (baseline), wait 1-2 weeks, before and after first 2-day condition, wait 1-2 weeks, before and after second 2-day condition

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Chaise Murphy

Collaborators

South Dakota State University

Investigators

  • Principal Investigator: Chaise A Murphy, Ph.D., South Dakota State University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 19, 2024

Primary Completion (Actual)

December 20, 2024

Study Completion (Actual)

December 20, 2024

Study Registration Dates

First Submitted

September 24, 2024

First Submitted That Met QC Criteria

October 1, 2024

First Posted (Actual)

October 2, 2024

Study Record Updates

Last Update Posted (Actual)

February 12, 2026

Last Update Submitted That Met QC Criteria

February 10, 2026

Last Verified

October 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • IRB-2024-43

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

As of right now, I have no collaborators to share the data with.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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