What are the opening hours?

Monday 4:45am - 9pm Tuesday 4:45am - 9pm Wednesday 4:45am - 9pm Thursday 4:45am - 9pm Friday 4:45am - 9pm Saturday 6am - 2pm Sunday 6am - 2pm

Underground Fitness

Home
United States
Phoenix, AZ
Underground Fitness

Directions Website Contact the business

Looking for a Personal Trainer? We are the Valley's Best. Come try us free and see why. We specialize in TRANSFORMATIONS. Period.

We specialize in TRANSFORMATIONS... which takes a planned approach to exercise, nutrition, and metabolism. Visit our website to request a FREE session to try it out... on us!

11/02/2026

Strength training isn’t only about building muscle.

It also gives your bones a reason to adapt.

Weight-bearing and resistance exercise can help support bone strength and bone density, which matters more as we get older.

That doesn’t mean you need to chase the heaviest weight possible.

Good training should match your current ability, use solid technique, and progress at a level that makes sense for you.

Bone health may not be something you can see in the mirror, but it still deserves a place in the conversation.

Strength, mobility, balance, endurance, and bone health all contribute to how capable you feel over time.

Training isn’t only about what changes on the outside.

It’s about supporting the body you want to keep relying on.

𝐖𝐡𝐚𝐭’𝐬 𝐨𝐧𝐞 𝐫𝐞𝐚𝐬𝐨𝐧 𝐲𝐨𝐮 𝐰𝐚𝐧𝐭 𝐭𝐨 𝐬𝐭𝐚𝐲 𝐬𝐭𝐫𝐨𝐧𝐠 𝐚𝐬 𝐲𝐨𝐮 𝐠𝐞𝐭 𝐨𝐥𝐝𝐞𝐫?

11/01/2026

Cardio isn’t only about burning calories.

It’s also about having enough endurance for the things you actually want to do.

Walking through an airport without feeling drained.

Exploring a new city.

Keeping up on a family day out.

Finishing a long workday and still having some energy left for yourself.

That’s where cardio becomes more useful than just a number on a machine.

You don’t need to make every session exhausting. The goal is to build endurance in a way you can keep doing consistently.

At 𝐔𝐧𝐝𝐞𝐫𝐠𝐫𝐨𝐮𝐧𝐝 𝐅𝐢𝐭𝐧𝐞𝐬𝐬, cardio can be part of a bigger training plan that supports your strength, stamina, and everyday life.

𝐖𝐡𝐚𝐭’𝐬 𝐨𝐧𝐞 𝐚𝐜𝐭𝐢𝐯𝐢𝐭𝐲 𝐲𝐨𝐮 𝐰𝐚𝐧𝐭 𝐦𝐨𝐫𝐞 𝐞𝐧𝐝𝐮𝐫𝐚𝐧𝐜𝐞 𝐟𝐨𝐫?

11/01/2026

Strength matters, but everyday life doesn’t always give you much time to use it.

Sometimes you need to stand up quickly, catch yourself, change direction, or react when your balance shifts.

That’s where power comes in.

Power is your ability to use strength quickly. It plays a role in everyday movements like getting up, climbing stairs, and reacting when something unexpected happens.

That doesn’t mean every workout needs to be explosive.

Power work can be adjusted to your ability and introduced gradually. The goal is to build strength you can use quickly when life calls for it.

Strength gives you force.

Power helps you use it when you need it.

𝐖𝐡𝐚𝐭’𝐬 𝐨𝐧𝐞 𝐞𝐯𝐞𝐫𝐲𝐝𝐚𝐲 𝐦𝐨𝐯𝐞𝐦𝐞𝐧𝐭 𝐲𝐨𝐮’𝐝 𝐥𝐢𝐤𝐞 𝐭𝐨 𝐟𝐞𝐞𝐥 𝐪𝐮𝐢𝐜𝐤𝐞𝐫 𝐚𝐧𝐝 𝐦𝐨𝐫𝐞 𝐜𝐨𝐧𝐟𝐢𝐝𝐞𝐧𝐭 𝐝𝐨𝐢𝐧𝐠?

10/30/2026

A hard workout isn’t automatically a useful one.

Feeling tired, sore, or sweaty can tell you that you worked. It doesn’t always tell you whether the session actually moved you forward.

A better question is: 𝐖𝐡𝐚𝐭 𝐝𝐢𝐝 𝐭𝐡𝐢𝐬 𝐰𝐨𝐫𝐤𝐨𝐮𝐭 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐢𝐦𝐩𝐫𝐨𝐯𝐞?

Maybe it’s strength. Better control. More stamina. More confidence with a movement. Or simply feeling more capable in everyday life.

That’s where good coaching matters.

The goal isn’t to make every workout as exhausting as possible. It’s to choose the right challenge, build on it over time, and keep your training connected to what you actually want to do outside the gym.

At 𝐔𝐧𝐝𝐞𝐫𝐠𝐫𝐨𝐮𝐧𝐝 𝐅𝐢𝐭𝐧𝐞𝐬𝐬, personal training is built around your goals, your ability, and progress you can keep building on.

𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐮𝐬 𝐭𝐨 𝐥𝐞𝐚𝐫𝐧 𝐦𝐨𝐫𝐞 𝐚𝐛𝐨𝐮𝐭 𝐏𝐞𝐫𝐬𝐨𝐧𝐚𝐥 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠 𝐭𝐡𝐚𝐭’𝐬 𝐝𝐞𝐬𝐢𝐠𝐧𝐞𝐝 𝐭𝐨 𝐬𝐮𝐩𝐩𝐨𝐫𝐭 𝐲𝐨𝐮𝐫 𝐥𝐢𝐟𝐞, 𝐧𝐨𝐭 𝐣𝐮𝐬𝐭 𝐰𝐞𝐚𝐫 𝐲𝐨𝐮 𝐨𝐮𝐭.

10/30/2026

𝐁𝐞𝐢𝐧𝐠 𝐟𝐥𝐞𝐱𝐢𝐛𝐥𝐞 𝐝𝐨𝐞𝐬𝐧'𝐭 𝐚𝐥𝐰𝐚𝐲𝐬 𝐦𝐞𝐚𝐧 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐦𝐨𝐯𝐞 𝐰𝐞𝐥𝐥.

Mobility is about more than how far you can stretch. It's also about how well you can control your movements.

Think about everyday activities like bending down, reaching overhead, turning, or getting up from the floor.

You need both strength and mobility to handle those movements with confidence.

At 𝐔𝐧𝐝𝐞𝐫𝐠𝐫𝐨𝐮𝐧𝐝 𝐅𝐢𝐭𝐧𝐞𝐬𝐬, we believe training should help you move better in everyday life, not just improve what you can do in the gym.

That means building strength through a range of motion you can control, with exercises that match your current ability and goals.

You don't need to be the most flexible person in the room.

𝐓𝐡𝐞 𝐠𝐨𝐚𝐥 𝐢𝐬𝐧'𝐭 𝐭𝐨 𝐬𝐭𝐫𝐞𝐭𝐜𝐡 𝐟𝐚𝐫𝐭𝐡𝐞𝐫. 𝐈𝐭'𝐬 𝐭𝐨 𝐦𝐨𝐯𝐞 𝐰𝐢𝐭𝐡 𝐦𝐨𝐫𝐞 𝐬𝐭𝐫𝐞𝐧𝐠𝐭𝐡, 𝐜𝐨𝐧𝐭𝐫𝐨𝐥, 𝐚𝐧𝐝 𝐜𝐨𝐧𝐟𝐢𝐝𝐞𝐧𝐜𝐞 𝐢𝐧 𝐞𝐯𝐞𝐫𝐲𝐝𝐚𝐲 𝐥𝐢𝐟𝐞.

10/28/2026

🤔 What do you want your body to still help you do 10 years from now?

Maybe it’s carrying your own things without thinking twice.

Traveling without worrying about how much walking the day will involve.

Keeping up with family, hobbies, work, or whatever makes life feel like yours.

That’s where fitness becomes more meaningful.

You’re not training to predict the future. You’re training to stay more prepared for it.

Strength, endurance, mobility, balance, and consistency can all support the same bigger goal: helping you stay capable for more of the life you want to keep living.

So instead of only asking, “What do I want to achieve this month?”

Ask a bigger question:

𝐖𝐡𝐚𝐭 𝐝𝐨 𝐈 𝐰𝐚𝐧𝐭 𝐦𝐲 𝐛𝐨𝐝𝐲 𝐭𝐨 𝐬𝐭𝐢𝐥𝐥 𝐡𝐞𝐥𝐩 𝐦𝐞 𝐝𝐨 𝟏𝟎 𝐲𝐞𝐚𝐫𝐬 𝐟𝐫𝐨𝐦 𝐧𝐨𝐰?

𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐔𝐧𝐝𝐞𝐫𝐠𝐫𝐨𝐮𝐧𝐝 𝐅𝐢𝐭𝐧𝐞𝐬𝐬 𝐭𝐨 𝐥𝐞𝐚𝐫𝐧 𝐦𝐨𝐫𝐞 𝐚𝐛𝐨𝐮𝐭 𝐏𝐞𝐫𝐬𝐨𝐧𝐚𝐥 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠 𝐛𝐮𝐢𝐥𝐭 𝐚𝐫𝐨𝐮𝐧𝐝 𝐲𝐨𝐮𝐫 𝐠𝐨𝐚𝐥𝐬 𝐚𝐧𝐝 𝐭𝐡𝐞 𝐥𝐢𝐟𝐞 𝐲𝐨𝐮 𝐰𝐚𝐧𝐭 𝐭𝐨 𝐤𝐞𝐞𝐩 𝐥𝐢𝐯𝐢𝐧𝐠.

10/27/2026

Strength matters because of what it can help you keep doing.

Carrying what you need without overthinking it.

Traveling with more confidence.

Saying yes to plans instead of wondering if your body can handle them.

Keeping up with the people, places, and activities that matter to you.

That’s where strength becomes more than a gym goal.

The point isn’t to remove every limitation. It’s to keep building enough capacity that more of life stays available to you.

That gives you a different way to measure progress.

Not just by the weight you lift, but by how capable you feel outside the gym.

At Underground Fitness, training is built around helping you get stronger for the life you want to keep living.

𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐔𝐧𝐝𝐞𝐫𝐠𝐫𝐨𝐮𝐧𝐝 𝐅𝐢𝐭𝐧𝐞𝐬𝐬 𝐭𝐨 𝐥𝐞𝐚𝐫𝐧 𝐦𝐨𝐫𝐞 𝐚𝐛𝐨𝐮𝐭 𝐏𝐞𝐫𝐬𝐨𝐧𝐚𝐥 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠.

10/26/2026

𝐘𝐨𝐮 𝐝𝐨𝐧’𝐭 𝐧𝐞𝐞𝐝 𝐭𝐨 𝐩𝐫𝐨𝐯𝐞 𝐚𝐧𝐲𝐭𝐡𝐢𝐧𝐠 𝐨𝐧 𝐲𝐨𝐮𝐫 𝐟𝐢𝐫𝐬𝐭 𝐝𝐚𝐲.

You can tell your coach that you’re nervous, that it’s been a while, or that you’re not sure where to begin. Those are useful things for a coach to know.

Talk about what you’d like to do more easily and what’s made training difficult before. Maybe you’ve felt lost in a gym or tried a routine you couldn’t keep up with.

That conversation helps your coach understand what you need from training, including the support that would make getting started feel less daunting.

At 𝐔𝐧𝐝𝐞𝐫𝐠𝐫𝐨𝐮𝐧𝐝 𝐅𝐢𝐭𝐧𝐞𝐬𝐬, you’ll have guidance through the exercises, help with technique, and a coach who can adjust the plan as you go.

𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐔𝐧𝐝𝐞𝐫𝐠𝐫𝐨𝐮𝐧𝐝 𝐅𝐢𝐭𝐧𝐞𝐬𝐬 𝐭𝐨 𝐭𝐚𝐥𝐤 𝐚𝐛𝐨𝐮𝐭 𝐠𝐞𝐭𝐭𝐢𝐧𝐠 𝐬𝐭𝐚𝐫𝐭𝐞𝐝 𝐰𝐢𝐭𝐡 𝐩𝐞𝐫𝐬𝐨𝐧𝐚𝐥 𝐭𝐫𝐚𝐢𝐧𝐢𝐧𝐠.

10/25/2026

You don’t need a perfect week to make progress.

That doesn’t mean you have to wait until Monday to start over or squeeze every missed session into the weekend.

Focus on the next workout you can realistically make.

It helps to plan around the week you actually have. Choose training days that usually work for you, and let your coach know when your schedule gets tight. Sometimes adjusting the plan makes more sense than giving up on it.

At 𝐔𝐧𝐝𝐞𝐫𝐠𝐫𝐨𝐮𝐧𝐝 𝐅𝐢𝐭𝐧𝐞𝐬𝐬, your coach can help you build a routine around your goals, your schedule, and what you can realistically sustain.

You’re training for the long run. Learning how to stay consistent through an imperfect week is part of that.

𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐮𝐬 𝐭𝐨 𝐭𝐚𝐥𝐤 𝐚𝐛𝐨𝐮𝐭 𝐚 𝐭𝐫𝐚𝐢𝐧𝐢𝐧𝐠 𝐩𝐥𝐚𝐧 𝐭𝐡𝐚𝐭 𝐟𝐢𝐭𝐬 𝐲𝐨𝐮𝐫 𝐰𝐞𝐞𝐤.

10/24/2026

𝐘𝐨𝐮𝐫 𝐧𝐞𝐱𝐭 𝐟𝐢𝐭𝐧𝐞𝐬𝐬 𝐠𝐨𝐚𝐥 𝐦𝐢𝐠𝐡𝐭 𝐚𝐥𝐫𝐞𝐚𝐝𝐲 𝐛𝐞 𝐨𝐧 𝐲𝐨𝐮𝐫 𝐜𝐚𝐥𝐞𝐧𝐝𝐚𝐫.

Maybe it’s a trip with plenty of walking, a hike with friends, or a weekend with the grandkids.

Think about what those plans involve. You might want more stamina for long walks, strength to carry your bags, or more confidence getting up from the floor after playing.

Those are goals worth sharing with your coach. They give you something specific to work toward beyond finishing another workout.

Training won’t make every activity easy. But it can help you feel more prepared to take part in the things you enjoy.

At 𝐔𝐧𝐝𝐞𝐫𝐠𝐫𝐨𝐮𝐧𝐝 𝐅𝐢𝐭𝐧𝐞𝐬𝐬, your personal training plan starts with your goals and current ability. Tell your coach what you’re looking forward to and what you’d like to feel more comfortable doing.

𝐖𝐡𝐚𝐭’𝐬 𝐨𝐧𝐞 𝐭𝐡𝐢𝐧𝐠 𝐲𝐨𝐮 𝐰𝐚𝐧𝐭 𝐭𝐨 𝐤𝐞𝐞𝐩 𝐬𝐚𝐲𝐢𝐧𝐠 𝐲𝐞𝐬 𝐭𝐨? 𝐓𝐞𝐥𝐥 𝐮𝐬 𝐢𝐧 𝐭𝐡𝐞 𝐜𝐨𝐦𝐦𝐞𝐧𝐭𝐬.

05/14/2020

Our PRIVATE gym is opening up for our clients only!

Avoid going back to gyms with thousands of members!!

Address

20910 N Tatum Boulevard
Phoenix, AZ
85050

Opening Hours

Monday	4:45am - 9pm
Tuesday	4:45am - 9pm
Wednesday	4:45am - 9pm
Thursday	4:45am - 9pm
Friday	4:45am - 9pm
Saturday	6am - 2pm
Sunday	6am - 2pm

Website

http://www.UndergroundFitnessAZ.com/

Alerts

Be the first to know and let us send you an email when Underground Fitness posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.