Exercise, Fatigue
Conditions
Brief summary
The purpose of this study is to determine change in injury risk and performance variables in males and females after walking unloaded and carrying a load with two different distributions (high-pack placement and mid-pack placement) to identify differences in injury risk
Interventions
OTHERLoaded Walking High
Walking three miles on a treadmill at a self-selected speed while wearing a backpack with weight carried high on the back
OTHERLoaded Walking Mid
Walking three miles on a treadmill at a self-selected speed while wearing a backpack with weight carried on the mid-back
OTHERWalking
Walking three miles on a treadmill at a self-selected speed
Sponsors
State University of New York at Buffalo
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 39 Years
Healthy volunteers
Yes
Inclusion criteria
* Healthy, physically active individuals * 18-39 years old
Exclusion criteria
* History of musculoskeletal injury within the last six months or still under a physicians care for an injury occurring more than six month prior * History of spinal disc injury * History of cardiovascular, metabolic, respiratory, neural, or renal disease * No previous history or education of completing resistance exercise * Hypertensive or tachycardic during the screening visit (SBP \> 139 mmHg, DBP \> 89 mmHg, heart rate \> 100 bpm) * Taking medication or supplements with a known side effect of affecting physiologic responses to exercise (e.g., beta blockers, omega-3 fatty acids, statins, aspirin) * Any form of tobacco or nicotine use * A positive pregnancy test at any point in the study * Study physician discretion based on any other medical condition or medication * Gastrointestinal disease or previous surgery prohibiting internal body temperature pill use. Subjects who have any contraindication to internal body temperature pill ingestion will be given the option to insert the pill rectally (as a suppository) or use a rectal probe.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Oxygen Consumption | Upon completion of 3 miles of walking, an average of 45 minutes | Oxygen consumption will be measured using indirect calorimetry |
| Increased muscular jerk | Upon completion of 3 miles of walking, an average of 45 minutes | Jerk will be measured using accelerometers placed at the torso and ankle |
Countries
United States
Outcome results
None listed