sleepy

[Title] Autumn Travel Notes

The weather was fine and sunny on the weekend, and we boarded the bus to Baishan Scenic Area.

At the end of the day, I feel very tired. However, I conducted a data analysis and found the benefits of mountain climbing to the human body: according to the measured data, if you climb on the hillside at a speed of 2 kilometers per hour for 30 minutes, the energy consumed is about 500 kcal is equivalent to swimming for 45 minutes or doing 50 minutes of exercise in the gym.During the mountain climbing process, you need to breathe frequently according to a certain degree, and gradually increase the intensity, and keep your heart rate at 120-140 per minute.Drink 10 to 15 ml of water 400 to 600 minutes before climbing, and replenish water reasonably and evenly according to the amount of sweat during climbing.

According to the force analysis, the center of gravity needs to be leaned forward when going up the mountain. Every time the center of gravity increases by 3 degrees, the body load work decreases by 5%.Therefore, when going uphill, you need to lean forward and upward, bend over and retract your abdomen, and move forward steadily.Landing on the soles of the feet can increase the stability by an additional 25%, and use more large muscles to support the body, reducing fatigue by 10%.

Use trekking poles to evenly distribute the load on the legs to the upper limbs, so that energy can be used reasonably, avoid waste, and save about 1/3 of physical energy.When the slope is greater than 30 degrees, using zigzag mountain climbing can reduce the maximum body strength required by 55%. Although the overall work is similar, according to the load fatigue perception formula, the fatigue can be greatly reduced, thus making full use of physical fitness.

The green coverage rate of the scenic area is more than 95%, and the green area is 4.2 mu. According to the formula of plant photosynthesis, it can be calculated that 2800 tons of carbon dioxide are absorbed and 2100 tons of oxygen are released every day.Therefore, the oxygen content of the air in the scenic area is 5% higher than that in the downtown area, the human respiration efficiency can be increased by 8%, and an additional 8% of physical energy can be generated.

When going down the mountain, the knee joint is in a bent posture, bearing the weight of the whole body and the forward impact force, generating greater pressure and friction, and the degree of strain is 45% higher than that of walking on flat ground.Every time the downhill speed increases by 2 meters per second, the knee receives an additional 10% impact force, which is equivalent to being hit by thousands of tons of weight every step.Therefore, it is necessary to keep the speed less than 3 meters per second when going down the mountain. When encountering a curvature greater than 45 degrees, it is necessary to reduce the speed by at least 50%.A reasonable posture is that the upper body is slightly protruding and the knees are bent, the center of gravity is moved slightly backward, the pace is slow, the stride is small and steady, and the frequency of center of gravity transfer is reduced.