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If you are planning on taking your hikes to the next level, you have to be prepared. The effects of altitude can make your trek laboured and uncomfortable – at the very least. And at the very worst, they can ruin your trip.

Here are some things you can do to better prepare for attempting a high-altitude summit:

1. Build up your aerobic and anaerobic cardio systems

The goal here is to boost your VO2 max – which is a measure of the amount of oxygen your body can consume. Increased consumption allows more oxygen to be delivered to your muscles. This will allow you to generate more physical output for a given input, which will be especially key at higher altitudes – where it is more difficult for your body to absorb oxygen.

To increase your VO2 max, incorporate steady state cardio activities like running, cycling or swimming into your training regime. You can also try low-impact elliptical at the gym or the stair climber (higher impact – but does a really good job of mimicking the feel of trekking and adding power to your legs). For each of these activities, aim for at least 45 minutes of consistent work around 4 times a week.

You will also want to throw in 1 or 2 anaerobic (HIIT style) cardio sessions to challenge your max heart rate and get you used to that breathless feeling. The focus here is to do short intervals of timed work and rest (i.e 40 seconds on, 20 seconds off). During the work intervals, you want to be pushing yourself to an 8 or 9 out of 10 exertion level. Pick activities that allow you to reach this level in a short amount of time, like sprinting or plyometrics.

See if you can try some of these activities at altitude – whether it is a trip to the mountains to run some trails or doing finding access to simulated altitude training at home using masks, or even better, a high altitude training gym (Check out Tip 6 below).

2. Spend more time in the Weight Room

Expect it to be much harder for your muscles to power your body when there is less oxygen in the air. The more you can build up your strength beforehand, especially in your lower body, the more you will be able to endure. Focus on big muscle groups – quads (thigh muscles), glutes (butt muscles), back, chest and hamstrings. But also think about strengthening muscles that help with stabilization, like your core. When it comes to weight and reps – you want to think endurance based rather than sheer strength. This will mean lighter weights and more reps. See here for a sample 12-week workout plan that follows these guidelines.

Incorporate at least 3 strength training sessions into your weekly schedule. It’s especially important to work with good form – so get advice from a trainer or join a cross-training class for best results.

3. Learn some breathing techniques

We hardly ever think about our breath down here at sea level. At higher altitudes, however, the effects of decreased oxygen intake cause the breath to be laboured and shallow. So it’s not surprising to find breathing a focal point on the mountain. If you’ve ever been to a yoga class or tried meditation, you’ll know there are ways to control the depth, pace and frequency of the breath. Here are some breathing techniques that you can try on the mountain.

Pursed breathing

According to the Cleveland Clinic, pursed breathing has been shown to reduce how hard a person has to work to breath. It’s helpful to try during exercise. To do it: take two counts to breathe in slowly (doesn’t have to be a deep breath) through your nose with your mouth closed. As you breathe out, form your lips into a puckered or whistle position.

Diaphragmatic Breathing

Since the diaphragm is the most efficient muscle when it comes to breathing – taking time to strengthen it through diaphragmatic breathing before your expedition will help you on the mountain. This technique has been found to “decrease oxygen demand” and allow you to “use less effort and energy to breathe”. To do it: sit in a comfortable position and place one hand on your chest and one hand below your rib cage. Inhale slowly, feeling your belly expand with your lower hand. Squeeze your stomach and purse your lips as you exhale feeling your belly contract. Note that your top hand should remain still the whole time.

4. Work on your diet

Certain foods contain dietary nitrates that support your cardiovascular system. According to the Journal of Applied Philosophy, beetroot juice was proven to help study participants exercise up to 16% longer. This stamina boost was attributed to physiological adaptations to blood vessels and muscle tissue caused by nitrates in beets. These favourable adaptations result in your muscles needing less oxygen to perform. You should be doing everything you can do to prepare your body for oxygen-deficient elevations – and if it’s as easy as drinking beetroot juice, all the better!

5. Hydrate

Humidity levels are lower at higher altitudes. According to the Wilderness Medical Society, you lose water through respiration at high altitude twice as quickly compared to sea level. In other words – you can expect to be needing to drink a lot more water up there than down here. Start increasing your fluid intake now to get your body accustomed to the feeling. Aim for 3-4 liters daily. Also be sure to drink before, during and after your workout. If you are looking for some good electrolytes to add try Nuun tablets!

6. Try Simulated High Altitude Training

Of course, the best thing you can do to prepare for your trip is to expose yourself to high altitude. Exercising, breathing or sleeping at hypoxia (an environment with reduced oxygen levels) will physiologically prepare you for these conditions (and reduce your risk of getting Acute Mountain Sickness) through simulated high altitude equipment. Examples would include personal-use equipment, such as altitude training masks (which would be worn during exercise) or altitude tents for sleeping. You can often order these pieces through companies that specialize in altitude training systems, such as Mile High Training or Hypoxico.

Alternatively, altitude training facilities are popping up in several parts of the globe, including London, Chicago and Dubai and especially in Australia, where they have been well established for a couple of years now in Sydney and Melbourne. These facilities are actual gyms with specialized hypoxic chambers or altitude training rooms containing various cardio machines and strength training equipment. Members can participate in group training classes or solo sessions to improve exercise capacity at altitude. Doing 2 classes or sessions per week for at least 6 weeks before your trip would be the ideal way to acclimatize and take advantage of the physiological benefits of intermittent hypoxic training.

7. Build your mental strength

In any situation where you find yourself under intense physical exertion, half the battle is against your mind. You’ll likely be telling yourself that you can’t do it, that you can’t even take another step. You’ll be feeling anxious – which will raise your heart rate and make your breathing even more shallow and laboured than it should be. Of course, sometimes it is physically unsafe for you to keep going. But sometimes it can be hard to tell whether it is your body or brain that is telling you to stop.

This is a skill to practice before your trip. Try some of these tips during your workouts:

· Listen to music (or have a song in your head) and focus on the lyrics or beat. This will distract your mind and lift your spirits

· Undermine the difficulty your workout. Even if you have set yourself a tough challenge, tell yourself things like “just one more hill”, “10 more minutes”, “I’m more than halfway through”, “today is an easier day”. Even if these things aren’t true or don’t feel true, they can go along way in relaxing your body and extending your threshold. Convince yourself it’s not that bad, and it won’t be that bad.

· Take intermittent, deep breathes – especially during long endurance-based sessions of work. These ‘cleansing’ breathes will act as a restart or refresh button to challenge cumulative mental and physical fatigue. Breathe in slowly and exhale fully every 20 or 30 minutes. Notice how your body feels after these breathes – clearer mind, oxygen going to your legs and an overall sense of regeneration.