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Examining Changes in Muscle Size and Body Composition Between Two Hypertrophy Resistance Training Programs in Males

Body Weight Changes Clinical Trial

Official title:
A Pilot Study Examining Differences in Waist, Upper-arm, Mid-thigh Circumference and Body Composition When Training to Momentary Muscular Fatigue Versus Close Failure-proximity Amongst Healthy Male Biological Sex University-aged Students

Clinical Trial Summary

This study aims to investigate if a less physically and psychologically taxing approach to resistance training can generate equal or greater outcomes when compared to a more physically and psychologically taxing approach.

Clinical Trial Description

Resistance training is commonly used to improve body composition, gain strength, increase muscle size (i.e., hypertrophy) and prevent muscle atrophy (i.e., muscle wasting). The most optimal mode of building muscle remains unclear, however there are many mechanisms that can be tested to yield optimal results. One variable that can be manipulated when designing a hypertrophy-focused resistance training regimen is intensity (i.e., proximity-to-failure). Proximity-to-failure is defined as the number of repetitions remaining in a set of prescribed exercises prior to reaching momentary muscular failure (MMF). MMF is when an individual cannot complete the lowering or concentric phase of a given repetition with a full range-of-motion without deviation from the prescribed form of the exercise. For all lifters, particularly amongst older populations, it can be psychologically demanding to push to MMF, and may increase the risk of delayed onset muscle soreness (DOMS) and/or injury due to technical breakdown. In contrast, there is some evidence that suggests training to a slightly less intensity (i.e., within 1-4 repetitions in reserve [RIR]) may result in comparable hypertrophic results with less of a physical and psychological demand on participants. For these reasons, this study looks to investigate if an easier (i.e., less intense) approach to training such as training with repetitions in reserve (RIR), warrants similar or better muscle hypertrophy adaptations to MMF. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05667233
Study type Interventional
Source Dalhousie University
Contact
Status Completed
Phase N/A
Start date February 6, 2023
Completion date April 3, 2023
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