Postprandial Lipid Tracer & Exercise in Spinal Cord Injury

Status Completed

Clinical Trial Summary

This study investigates the effect of upper extremity exercise on postprandial lipemia (PPL) in persons with spinal cord injury (SCI). Participants are measured at rest and fed a standardized meal following seated rest (CON) or arm cycling exercise (ACE). The meal is infused with "stable isotope lipid tracers" that allow for determination of the end fates of the fat in the meal.

Clinical Trial Description

Spinal cord injury (SCI) results in dysregulation of fat metabolism that increases the risk of morbidity and mortality from cardioendocrine disease. Excessive accumulation of visceral fat after SCI is a serious risk component for cardioendocrine disease and results in part from pronounced hypertriglyceridemia following ingestion of fat-containing meals (i.e., exaggerated postprandial lipemia; PPL). Although exaggerated PPL is well documented in persons with SCI, its etiology is unknown. Specifically, it remains to be determined to what extent exaggerated PPL in those with SCI results from impairments in the use of exogenous (dietary) and/or endogenous (stored) fats. Additionally, it is not known if exercise improves postprandial fat use in a manner that alleviates the exaggerated PPL in this population and reduces the risk of cardioendocrine disease. The objective of the this study is to examine the mechanisms of exaggerated PPL in those with SCI and the effects of an acute pre-meal exercise bout by employing novel stable isotope tracer techniques. In persons without SCI, it is well established that pre-meal exercise lowers PPL in part by improving the use of exogenous and endogenous fats. While muscle atrophy and blunted sublesional sympathetic activity following SCI may hinder fat use, preliminary data indicate that fat use is increased during recovery from exercise in the postabsorptive (fasted) state in this population. Thus, the investigators hypothesize that decreased use of exogenous and endogenous fats contributes to exaggerated PPL in SCI, and that pre-meal exercise will reduce PPL due to increased use of both fat sources. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03691532
Study type	Interventional
Source	University of Miami
Contact
Status	Completed
Phase	N/A
Start date	May 30, 2018
Completion date	July 31, 2023

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Postprandial Lipid Tracer and Exercise in Spinal Cord Injury — PPLT

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms