The Effects of High-Intensity Functional Training Versus Traditional Strength Training or Concurrent Training on Performance and Readiness in Tactical Populations
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- University of South Carolina
- Enrollment
- 44
- Locations
- 1
- Primary Endpoint
- Changes in body composition body fat percentage.
Study Overview
Brief Summary
The purpose of this study is to investigate the effects of high-intensity functional training (HIFT) as compared to traditional resistance training (RT) and concurrent training consisting of RT and high-intensity interval training (HIIT) on physical performance metrics, body composition, and mental and physical readiness of tactical personnel.
Detailed Description
This study assesses the impact of 8-weeks of high-intensity functional training (HIFT) as compared to traditional resistance training (RT) and concurrent training consisting of RT and high-intensity interval training (HIIT) on various performance outcomes. The main questions the study aims to answer are:
- Evaluate the distinct effects of HIFT, RT, and RT plus HIIT over eight weeks on physical performance and body composition measures in tactical men and women.
- Determine the distress, training load, and physical readiness associated with each of the three distinct training interventions over eight weeks.
Participants will:
- Take part in 10-weeks total of study-related activity.
- Complete four total sessions of pre and post-testing sessions, which include body composition, maximal oxygen uptake testing (VO2max), upper and lower body maximal strength, and lower body power.
- Be randomly assigned to an exercise training intervention.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Other
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 35 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Males and females between the ages of 18 and 35 (inclusive) and enrolled in a reserve officer training corps program.
- •Subject has provided written and dated informed consent to participate in the study.
- •Subject is in good health as determined by medical history and is cleared for exercise.
- •BMI between 17.0 and 29.9 kg/m
- •"Good" category or greater for their aerobic capacity according to the American College of Sports Medicine (ACSM) normative data for their age and sex as measured at their baseline visit.
Exclusion Criteria
- •Participants with any musculoskeletal injuries that would prevent completion of these exercise programs.
- •Participants with any metabolic disorder, including known electrolyte abnormalities, uncontrolled diabetes, uncontrolled thyroid disease, adrenal disease, or hypogonadism.
- •Participants with a history of hepatorenal, musculoskeletal, autoimmune, or neurologic disease.
- •Participants who have lost or gained greater than eight pounds within three months prior to study enrollment.
- •Participants currently taking hyperlipidemic, hypoglycemic, anti-hypertensive, or anti-coagulant medications.
- •Participants who are pregnant or lactating.
Arms & Interventions
High Intensity Functional Training
Training will include power and strength movements, then 30 minutes of metabolic conditioning training comprised of whole-body multi-joint movements.
Intervention: High-intensity functional training (Behavioral)
Traditional Resistance Training
This group will perform traditional resistance training.
Intervention: Traditional resistance training (Behavioral)
Concurrent Training
This group will perform traditional resistance training followed by 20 minutes of running, high intensity intervals.
Intervention: Concurrent training (Behavioral)
Outcomes
Primary Outcomes
Changes in body composition body fat percentage.
Time Frame: Baseline and Week 10
Body fat percentage via air-displacement
Changes in body composition fat-free mass.
Time Frame: Baseline and Week 10
Fat-free mass via air-displacement plethysmography.
Changes in body composition dry fat-free mass.
Time Frame: Baseline and Week 10
Dry fat-free mass via air-displacement plethysmography and bio-electrical impedance.
Changes in upper body strength.
Time Frame: Baseline and week 10
Upper body strength assessed by 1 repetition maximum bench press.
Changes in lower body strength.
Time Frame: Baseline and week 10
Lower body strength assessed by isometric mid-thigh pulls on bilateral force plates.
Changes in maximal oxygen consumption.
Time Frame: Baseline and week 10
Changes in VO2max measured by maximal graded exercise test with indirect calorimetry.
Changes in ventilatory threshold.
Time Frame: Baseline and week 10
Changes in ventilatory threshold measured by maximal graded exercise test with indirect calorimetry.
Changes in velocity at VO2 max.
Time Frame: Baseline and week 10
Assessed by maximal graded exercise test with indirect calorimetry.
Secondary Outcomes
- Internal training load between groups.(Every training session over the 8-week intervention period will be included in this calculation.)
- Changes in training distress(Baseline, once per week for the 8 training weeks.)
- Changes in anaerobic power.(Baseline, once per week for the 8 training weeks.)
Investigators
Shawn M. Arent
Professor and Chair of Exercise Science Department
University of South Carolina