But there is no exercise in partial weight loss. All weight-loss exercises are systemic, and the individual's figure is determined by genes, diet and work and rest. Losing weight is not as good as fitness. Personally, I think swimming is a great aerobic exercise, but the conditions are a bit harsh. Running (must be jogging) is also ok. Pay attention to good protection, including knees and ankles, and warm up in winter, which accounts for half of the exercise effect.