Influence of Diet and Endurance Running on Intramuscular Lipids Measured at 4.1 TESLA

N

National Center for Research Resources (NCRR)

Status

Completed

Conditions

Obesity

Treatments

Drug: dietary fat
Procedure: magnetic resonance spectroscopy

Study type

Interventional

Funder types

NIH

Identifiers

NCT00000110
M01RR000032 (U.S. NIH Grant/Contract)
NCRR-M01RR00032-0855

Details and patient eligibility

About

The purpose of this pilot investigation is to use 1 H Magnetic Resonance Spectroscopy (MRS) to 1) document the change in intra-muscular lipid stores (IML) before and after a prolonged bout of endurance running and, 2) determine the pattern (time course) of IML replenishment following an extremely low-fat diet (10% of energy from fat) and a moderate-fat diet (35% of energy from fat). Specifically, the study will evaluate the change in IML following a 2-hour training run and the recovery of IML in response to the post-exercise low-fat or moderate-fat diet in 10 endurance trained athletes who will consume both diets in a randomly assigned cross-over fashion. We hypothesize that IML will be depleted with prolonged endurance exercise, and that replenishment of IML will be impaired by an extremely low-fat diet compared to a moderate-fat diet. Results of this pilot study will be used to apply for extramural grant support from NIH or the US Armed Forces to investigate the effect of dietary fat on the health and performance of individuals performing heavy physical training. It is anticipated that this methodology could also be employed in obesity research to delineate, longitudinally, the reported cross-sectional relationships among IML stores, insulin resistance and obesity.

Sex

All

Ages

18 to 49 years old

Volunteers

Accepts Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:

  • Healthy volunteers (developmental phase)
  • Healthy endurance-trained subjects
  • Maximum age for males is 39
  • Maximum age for females is 49

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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