Effect of Muscle Damage After Downhill Running on Postprandial Lipids

December 23, 2020 updated by: Chen-Kang Chang, National Taiwan Sport University

All participants underwent three experimental trials, namely downhill running (DR), level running (LR), and the control (CON) in a cross-over design. Each trial lasted for 2 days. The participants were fed the same breakfast and lunch on day 1 in each trial. The participants arrived at the laboratory at 18:00 on day 1 and ran on the treadmill at 60% VO2max (downhill and level surface trials) or rested (CON trial) for 30 min. Subsequently, they were fed a standardized dinner (A meal box containing chicken, vegetables, and rice, 692 kcal, with 50% energy from carbohydrate, 32% from fat, and 18% from protein) within 20 min.

The participants returned to the laboratory at 07:30 on day 2 after an overnight fast. After baseline blood and gas samples were collected, the participants were fed a high-fat meal that included cereal, white bread, whipping cream, cheese, and butter. The high-fat meal provided fat 1.2 g/kg (65% energy), carbohydrate 1.1 g/kg (27% energy), protein 0.33 g/kg (8% energy), and 16.5 kcal/kg.

A 10-mL blood sample was collected from a forearm vein into nonheparinized tubes before and immediately after exercise or rest on day 1. On day 2, postprandial blood samples were collected from forearm veins into nonheparinized tubes by using an indwelling venous needle and a three-way stopcock. A 10-mL blood sample was collected before (0 h) and 0.5, 1, 2, 3, 4, 5, and 6 h after the high-fat meal.

Study Overview

Status

Completed

Study Type

Interventional

Enrollment (Actual)

9

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

      • Taichung, Taiwan, 404
        • National Taiwan University of Sport

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

20 years to 40 years (ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • generally healthy, had not engaged in regular exercise or received any medication in the past 6 months

Exclusion Criteria:

  • history of cardiovascular disease, hypertension, hyperlipidemia, diabetes, atherosclerosis, or osteoporosis, free of any musculoskeletal injury during the study

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: PREVENTION
  • Allocation: RANDOMIZED
  • Interventional Model: CROSSOVER
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Downhill running
Running at 60% VO2max on -15% slope for 30 min on a treadmill
Running
EXPERIMENTAL: Level running
Running at 60% VO2max on level surface for 30 min on a treadmill
Running
PLACEBO_COMPARATOR: Control
Rest 30 min
sit and rest

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
TG AUC
Time Frame: 6 hours
area under the curve for serum triglyceride concentrations within 6 hours after the high-fat meal
6 hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
NEFA AUC
Time Frame: 6 hours
area under the curve for serum non-esterified fatty acid concentrations within 6 hours after the high-fat meal
6 hours

Collaborators and Investigators

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

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)

May 15, 2019

Primary Completion (ACTUAL)

July 1, 2019

Study Completion (ACTUAL)

July 1, 2019

Study Registration Dates

First Submitted

December 23, 2020

First Submitted That Met QC Criteria

December 23, 2020

First Posted (ACTUAL)

December 29, 2020

Study Record Updates

Last Update Posted (ACTUAL)

December 29, 2020

Last Update Submitted That Met QC Criteria

December 23, 2020

Last Verified

December 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 201903HM011

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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