More and more urban dwellers are passionate about outdoor activities
Hiking, as a fashionable fitness activity
can not only help build physical strength
but also cultivate one’s spirit,
making it increasingly popular
However, after every hike, someone always sighs:
“It’s really easier to go uphill than downhill!”
So, what’s the reason behind this?

Thus, many people wonder: Under the same conditions, from a physiological perspective, if the environment for going uphill and downhill is the same—same steps, same physical effort (whether starting from the bottom or the top)—then downhill should be easier than uphill. Why is it actually harder?
Some also say: When going up, your head is above your feet, allowing you to see the “path” and conditions, so it’s easier; whereas when going down, though still head-up and feet-down, you can’t clearly see the “path” and conditions, leading to a more dangerous and difficult descent as you feel your way down.
So why is going downhill truly more difficult?
Three Scientific Perspectives Analyzed
1 | Different Directions of Gravity and Applied Force
In fact, apart from the steepness of mountain paths, it’s also related to the large amount of energy expended while climbing uphill and the significant difference in movement compared to normal walking during the descent. When going uphill, gravity pulls downward, while your applied force is upward—the two forces are in opposite directions and balanced. Aside from requiring some effort, it poses relatively low risk.
But descending is different: gravity still pulls downward, and your own force is also downward. This makes it hard to maintain balance, and too much forward momentum may lead to danger. Also, if you descend too quickly, your legs will become sore and shaky.
2 | Different Muscle Contraction Methods

The most important muscle in hiking is the quadriceps in the front of the thigh. This muscle shortens while exerting force when going uphill, but lengthens while exerting force when going downhill; the former is called “concentric contraction,” and the latter is “eccentric contraction.”

Simply put, the former is a natural form of contraction for tendons, but the latter is unnatural. People with insufficient muscle strength who perform movements like the latter may suffer muscle cell damage.
When muscle cells are damaged, muscle strength declines. During uphill movement, concentric contraction occurs, so muscle strength doesn’t decrease too much. But during downhill movement, eccentric contractions are repeated, so those with weaker leg strength will experience a rapid decline in muscle power.
If leg strength declines, the action of using your legs to support body weight becomes less agile, so it’s easy to fall without paying attention. Descending often leads to instability such as sudden buckling of the knees or inability to exert strength, all clear signs of reduced leg strength due to repeated eccentric contractions.
3 | The Impact Force When Descending Is Double That of Ascending
An experiment showed that when using a pressure plate device to measure four types of movements—walking on flat ground, jogging on flat ground, climbing up 30cm steps (assumed to be uphill), and walking down 30cm steps (assumed to be downhill)—it measured the impact force on the feet from the ground.
When walking on flat ground, there is only a gentle rebound force almost equal to body weight, but when jogging, the force is twice the body weight and rebounds instantly upon landing.
What about going up and down stairs?

When going upstairs, there is only a gentle rebound force almost equal to body weight; in contrast, going downstairs produces double (i.e., twice the body weight) the force, rebounding instantly upon landing. This experiment was conducted without carrying anything—if you carry a backpack, the impact force will naturally be even greater.
The impact forces experienced when going up and down stairs, if compared to flat-ground exercises, are similar to walking when going up and jogging when going down. Hiking downhill, even if it looks like walking, is actually a high-pressure activity comparable to jogging.
Try going up and down stairs when you have a sprained ankle—you’ll deeply feel the difference in pain. Additionally, descending often causes knee and lower back pain, which can help you better understand the strain and management of your movements during exercise. Four Scientific Hiking Secrets
(1) The Correct Posture for Hiking
1 | Going Uphill

Keep your body relaxed and leaning slightly forward, but maintain a straight back and waist to avoid hunching or slouching. Bend your knees naturally and push off powerfully with both legs, landing on the full sole or the outer edge of your foot. This movement primarily engages the thigh and gluteal muscles, and regular practice can help tone the buttocks.
Try not to land on the balls of your feet, as this relies on the calves—muscles that are smaller and more prone to fatigue from prolonged contraction, leading to unsightly calf bulges.
When climbing steps, you can use the “mountaineering step”: place one leg on the step and the other below it, pushing off forcefully with the rear leg as you climb to reduce pressure on the knee joint of the front leg.
2 | Going Downhill

(2) Warm-Up Before Climbing Uphill
The heart and respiratory system are inert and only function at partial capacity under normal conditions. During exercise, energy in the muscles is rapidly depleted, requiring increased breathing and heart rate to deliver nutrients. This leads to a sensation of rapid heartbeat, shortness of breath, and general discomfort—a physiological phenomenon known as the “extreme point.”
With rest and proper adjustment, the cardiopulmonary system transitions from partial to full functionality, so the same intensity of exercise will no longer feel uncomfortable. Warming up before hiking stretches the muscles and ligaments, increases synovial fluid in the joints to prevent injury, and more importantly, helps avoid or mitigate the occurrence of the “extreme point.”
Therefore, it’s essential to warm up before heading uphill, especially focusing on lower limb muscles and joints. Start with 2 minutes of light jogging in place, followed by targeted stretching exercises. Avoid bouncing movements during warm-up.
1 | Light Jogging

2 | Stretching the Waist, Back, and Back of the Legs

3 | Stretching the Front of the Thighs

4 | Concentric and Eccentric Training for the Quadriceps

(3) Moderate Hiking Intensity
Studies show that hiking burns fat more effectively than many other forms of exercise. For a man weighing around 70 kilograms, hiking uphill at a speed of 2 kilometers per hour on a 70-degree slope for 30 minutes burns approximately 500 kilocalories. This is equivalent to swimming at a speed of 50 meters per minute in a pool for 45 minutes, or doing 50 minutes of monotonous abdominal exercises in the gym. To enhance fat-sculpting effects, it’s best to hike 3–4 times per week.
It’s important to note that higher intensity isn’t necessarily better. Scientific hiking guidelines recommend maintaining a heart rate between (220 – age) × 60% and (220 – age) × 80% beats per minute. So, if you feel discomfort in your heart or excessive fatigue while hiking, stop and check your heart rate.
(4) Relaxation After Descending
It’s important to relax your muscles promptly after hiking; otherwise, you may experience soreness or stiffness in your calves, thighs, or even throughout your body. Exercise produces byproducts like lactic acid, which can cause muscle rigidity and pain.
Timely muscle relaxation improves the effectiveness of fat reduction and body sculpting. Focus on areas prone to soreness (waist, hips, thighs, and calves), performing stretches and relaxation exercises. Hold each static stretch for 10 to 30 seconds, alternating sides.
1 | Stretching the Waist and Back

2 | Stretching the Hips and Back Thigh Muscles

3 | Stretching the Front of the Thighs

4 | Stretching the Calves

Friendly Reminder: Always undergo a comprehensive physical examination before hiking. Individuals with heart disease, high blood pressure, or other contraindications should follow medical advice. Adjust hiking intensity according to your personal condition, stay hydrated, progress gradually, and avoid carrying heavy loads or engaging in running and jumping to prevent accidents.
How to Go Camping While Traveling

As early as 50 years ago
Sir Edmund Hillary, the first New Zealander to summit Mount Everest
said the following:
“The key to climbing Mount Everest is not just reaching the summit
I even think it's more important to get down the mountain safely.”
So, getting down the mountain is more important, you know!”