A Novel Eccentric Resistance Training Strategy to Maximize Exercise Induced Muscle Damage in Young Adults
Trial Snapshot
- Phase
- Not Applicable
- Status
- Recruiting
- Enrollment
- 16
- Locations
- 1
- Primary Endpoint
- Muscle soreness 1
Study Overview
Brief Summary
The purpose of this study will be to test whether a new way of weight training is more effective than typical weight training. The investigators expect that this new way will cause more exercise-induced muscle damage, which helps people build bigger muscles. Another purpose of this study will be to explore perceptions of how muscle soreness impacts participant activities of daily living.
Detailed Description
Participants will come to the lab for 3 sessions, plus two email follow-up questionnaires.
Session 1 (45 minutes)
- Complete a demographic questionnaire
- Self-assess muscle soreness
- Walk on the treadmill to warm-up
- Maximal voluntary contraction on the chest press
- Two sets of eccentric (lowering) bench press at 75% of max
Session 2 (45 minutes)
- Walk on the treadmill to warm up
- Maximal voluntary contraction on the chest press
- Three sets of 10 eccentric contractions at 75% of max
- Repeat the maximal voluntary contraction on the chest press
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Crossover
- Primary Purpose
- Basic Science
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 35 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Sixteen young adults (ages 18-35) will be enrolled in this study.
- •In order to be enrolled, they must have completed at least three months of resistance training in the past five years in order to minimize the learning effect and chance of injury.
Exclusion Criteria
- •Since regular resistance training reduces the primary outcomes, muscle damage and soreness, individuals who currently participate in chest press resistance training at least once per week will be excluded.
- •Individuals who have musculoskeletal injuries in the shoulder, elbow or wrist that preclude pain-free resistance training, or who have underlying uncontrolled cardiovascular complications will also be excluded.
- •Women who are pregnant, or may consider becoming pregnant over the subsequent 2 months, will be excluded
Arms & Interventions
Slow eccentric
Participants will perform slow eccentric resistance training
Intervention: Slow Eccentric (Behavioral)
Fast Eccentric
Participants will perform fast eccentric resistance training
Intervention: Fast Eccentric (Behavioral)
Outcomes
Primary Outcomes
Muscle soreness 1
Time Frame: 1 day
Visual analog scale as indirect indicator of muscle damage. Scale of 1-5. Higher score = more soreness
Muscle soreness 2
Time Frame: 2 days
Visual analog scale as indirect indicator of muscle damage. Scale of 1-5. Higher score = more soreness
Muscle soreness 3
Time Frame: 3 days
Visual analog scale as indirect indicator of muscle damage. Scale of 1-5. Higher score = more soreness
Maximal Voluntary Isometric Contraction Change
Time Frame: pre-intervention, immediately after the intervention
Change in MVIC will be used to indicated muscle damage.
Secondary Outcomes
No secondary outcomes reported