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BFR and Muscle Mitochondrial Oxidative Capacity

Hypertrophy Clinical Trial

Official title:
Impact of Low-Intensity Resistance Exercise With and Without Blood Flow Redistricted (BFR) on Muscle Mitochondrial Oxidative Capacity

Clinical Trial Summary

Blood flow restricted (BFR) exercise has been shown to improve skeletal muscle adaptations to resistance exercise. BFR uses blood pressure cuffs (i.e., tourniquets) to reduce skeletal muscle blood flow during resistance exercise. One benefit of BFR is that skeletal muscle adaptations to resistance exercise training including muscle hypertrophy and increases in strength can be achieved at lower-loads (e.g., 25-30% 1RM), that are often comparable to more traditional resistance training loads (70-85% 1RM). However, the impact that low-load BFR resistance exercise has on muscle quality and bioenergetics is unknown. The present study will examine the impact of 6 weeks of low-load, single-leg resistance exercise training with or without personalized BFR on measures of muscle mass, strength, quality, and mitochondrial bioenergetics. The investigators will recruit and study up to 30, previously sedentary, healthy, college-aged adults (18-40 years). The investigators will measure muscle mass using Dual Energy X-Ray Absorptiometry and muscle strength and endurance using isokinetic testing. The investigators will normalize knee extensor strength to lower limb lean mass to quantify muscle quality. The investigators will also use near infrared spectroscopy (NIRS) to measure mitochondrial oxidative capacity in the vastus lateralis. Finally, the investigators will measure markers of systemic inflammation and markers of muscle damage using commercially available ELISA assays.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03723226
Study type Interventional
Source Louisiana State University and A&M College
Contact
Status Completed
Phase N/A
Start date January 28, 2019
Completion date July 1, 2023
View Details
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