Rucking—the practice of walking with a weighted backpack—has emerged as a accessible fitness trend for improving cardiovascular endurance and muscular strength. By adding resistance to a standard walk, individuals increase their metabolic rate and engage posterior chain muscles, providing a low-impact alternative to traditional running or heavy weightlifting, according to the American Council on Exercise (ACE).
What is Rucking and How Does It Work?
Rucking is a form of functional fitness that involves carrying a weighted pack, often called a rucksack, while walking for a set distance or time. Unlike running, which places repetitive high-impact stress on the joints, rucking is generally considered a low-impact activity, as one foot remains on the ground at all times.
According to the U.S. Army’s physical readiness training protocols, rucking serves as a foundation for building "muscular endurance" and "aerobic capacity." The added weight forces the body to work harder to maintain posture and propulsion, which recruits the core, glutes, and upper back muscles more intensely than walking unweighted.
Health Benefits of Weighted Walking
Research suggests that rucking can significantly increase caloric expenditure compared to walking at the same speed without a load. A study published in the Journal of Strength and Conditioning Research indicates that carrying a load can increase oxygen consumption, which improves heart and lung efficiency over time.
Key physiological benefits include:
- Improved Posture: The weight of the pack encourages the user to engage their core and retract their shoulder blades to maintain balance.
- Increased Bone Density: As a weight-bearing exercise, rucking helps stimulate bone remodeling, which is vital for long-term skeletal health.
- Low Joint Impact: Because it avoids the "flight phase" of running, rucking is often recommended for individuals looking to build stamina while managing joint health.
Getting Started Safely
For beginners, the most important factor is load management. It is widely recommended by fitness professionals to start with a weight that is no more than 10% to 15% of your body weight.
Before beginning a rucking routine, consider these safety guidelines:
- Choose the Right Pack: Use a backpack with a sturdy frame or one specifically designed for rucking that distributes weight high and close to the back.
- Proper Weight Distribution: Place the weight as high as possible in the pack to prevent it from pulling the shoulders backward and causing strain.
- Gradual Progression: Start with shorter distances at a comfortable walking pace before increasing the weight or the duration of the walk.
- Footwear: Wear supportive, broken-in shoes or boots that provide adequate arch support to prevent foot fatigue or blisters.
Frequently Asked Questions
Is rucking safer than running?
For many, yes. Because rucking eliminates the repetitive impact of landing on a single leg, it may reduce the risk of common overuse injuries associated with running, such as shin splints or stress fractures, provided the load is managed correctly.
How much weight should I carry?
Most experts suggest starting light—perhaps 5 to 10 pounds—to allow your joints and muscles to adapt. You can gradually increase the load once you can maintain proper posture throughout your walk without discomfort.
Does rucking build muscle?
Rucking is primarily an endurance activity. While it will tone the muscles of the lower body, core, and back, it is not a substitute for progressive resistance training if your primary goal is significant muscle hypertrophy (growth).
Can anyone go rucking?
While rucking is highly accessible, individuals with pre-existing back, knee, or hip conditions should consult with a healthcare provider before adding external weight to their walking routine. If you experience sharp pain or numbness during a walk, stop immediately and adjust your pack or reduce the weight.