Why Rucking Works: The Science Behind Walking With Weight
Take a look around on any given day and you’ll likely notice it: more people walking with backpacks or weighted vests. This growing trend has a name, rucking.
Originally rooted in military training, rucking is simply walking with added weight. It may look straightforward, but research shows it is one of the most effective ways to turn a regular walk into a full-body workout.
Here’s what the science tells us.
Burn More Calories—Without Increasing Speed
A 2023 study published in the Journal of Biomechanics examined how walking with weighted vests and backpacks affects energy expenditure. The findings were clear: adding weight substantially increases metabolic cost.
In practical terms, this means you burn more calories even when walking at the same pace. No need to move faster—each step simply requires more work.
Improve Cardiovascular Fitness Without Running
Another 2023 study analyzed how different load levels (ranging from no weight to heavy loads) influenced heart rate and oxygen consumption at various walking speeds and inclines. As weight increased, cardiovascular demand rose steadily.
This makes rucking a powerful option for building aerobic fitness without the need for running or jogging—ideal for athletes managing impact, recovery, or long training blocks.
Build Strength, Balance, and Stability
Walking under load challenges more than your lungs. Your core, hips, and legs must work harder to stabilize your body and maintain posture.
Research from the U.S. Army has shown that carrying weight significantly increases activation in the hips and trunk. More recent biomechanical studies continue to support these findings, highlighting rucking as an effective way to improve strength, balance, and movement efficiency.
Gain Endurance With Less Joint Impact
A 2022 review in the International Journal of Environmental Research and Public Health found that load carriage training improves aerobic capacity and endurance while keeping impact forces relatively low.
For those seeking an effective alternative to high-impact cardio—or a smart complement to running—rucking offers a rare balance of intensity and durability.
How Rucking Fits Into UltraTrax Training
Every UltraTrax event can be completed with or without added weight. Both options represent legitimate and challenging achievements.
If you want to elevate your training regardless of your event choice, incorporating light rucking into your preparation is a proven way to build strength and endurance. Start conservatively—around 5–10 percent of your body weight—prioritize posture, and increase load gradually. Even occasional weighted hikes can lead to noticeable gains in aerobic capacity and resilience by event day.
Whether you train light or load up, the goal remains the same: move forward, stay strong, and earn every mile.
