Gist
Yes. Rucking is excellent for load-carrying endurance because it trains aerobic capacity, leg fatigue resistance, trunk support and time on feet under external weight.
Yes. Rucking can support fat loss by increasing the energy cost of walking, but body-fat reduction still requires a sustained calorie deficit.
Yes. Rucking can support weight loss because carrying external load raises the energy cost of walking, but lasting results still depend on an overall calorie deficit.
Yes. Rucking is useful for general fitness because it combines aerobic exercise, weight-bearing movement and whole-body strength-endurance, but it should complement rather than replace strength training.
Yes. Rucking can improve cardiovascular fitness by increasing the metabolic demand of walking through added load, pace, hills and terrain.