Rucking: The Research Behind Walking With Weight
A look at what research and sports medicine experts say about rucking, the weighted-backpack workout trend borrowed from military training.
A Weighted Pack Roughly Triples the Calorie Burn
Rucking burns up to about 3 times more calories than regular walking, putting it in the same range as jogging, according to Cleveland Clinic. A 2019 study found that 10 weeks of load-carrying training lowered participants' perceived exertion while improving muscular power and oxygen intake, with benefits showing up in both men and women despite differences in cardiovascular response between the sexes.
Even Older Adults Saw Meaningful Gains
Adults between 65 and 74 who did weighted step exercises improved leg strength, power, and functional mobility, according to Cleveland Clinic's review of the research. A benefit like that at an older age matters more than raw calorie burn for most people's long-term independence.
Beginners Should Start Lighter Than Instinct Suggests
Sports medicine physician Dr. Matthew Kampert of Cleveland Clinic recommends starting a first ruck with about 5 pounds and building up gradually from there. Healthline's guideline lands close by, suggesting roughly 10% of body weight as a starting load, paired with a modest 2-mile distance at first.
Rucking Can Out-Burn Running Over the Same Distance
An 8-mile ruck carrying 35 to 50 pounds burns an estimated 1,360 to 1,475 calories for a 180-pound person, compared with roughly 1,120 calories running the same distance without weight, according to Healthline. Lower joint impact than running is part of what makes that trade-off appealing to people managing knee or hip concerns.
Progression and Recovery Both Matter
Dr. Kampert advises increasing training intensity by about 10% a week. Adjusting only one variable at a time, such as the pack's weight or the walk's duration, and holding the rest steady helps avoid injury while still making progress. Limiting heavy rucks to once or twice a week gives the shoulders and joints time to recover, since some research on soldiers recommends spacing heavy load-carrying sessions 10 to 14 days apart.
Bottom Line
Rucking delivers a real cardiovascular and strength stimulus that regular walking doesn't quite match, backed by research spanning military recruits to older adults. Most of the underlying data comes from young, fit populations, often military recruits, so anyone with existing back or joint issues should check with a doctor before loading up a pack.
Our foundational guide to movement as medicine covers why even simple movement patterns like walking carry outsized health benefits.
Sources
Cleveland Clinic — Should You Add Rucking to Your Workouts?
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