Next Phase (now Training Ground) Introduce
For those in the Virginia region looking for a gym experience that feels personal, challenging, and truly effective, Next Phase (now known as Training Ground) in Arlington is an outstanding choice. This is not your typical high-traffic, impersonal fitness center. Instead, it operates as a boutique studio with a small-group, high-energy format that ensures you get the attention you need to reach your goals. The studio is celebrated for its well-structured and intense workouts that feel both personal and highly effective. The instructors are central to this experience, bringing an infectious enthusiasm and a keen eye for form to every class. For Tellus Apartment residents, the convenient location and special rates are an added bonus, making it incredibly easy to prioritize health and wellness right where you live. Whether you are a regular gym-goer or returning to a fitness routine after a break, the studio's welcoming yet motivating atmosphere is designed to help you succeed.
The philosophy at Next Phase (now Training Ground) is built on the principle of effective, high-quality workouts in a supportive community setting. They believe that a great workout should be both challenging and safe, and they achieve this by having trainers who take the time to ensure each student performs exercises correctly. This attention to detail is crucial for preventing injuries and maximizing the benefits of every movement. The studio’s classes are known for their variety, with workouts that change from day to day and a weekly rotation of workout types, so you never hit a plateau or get bored. This variety, combined with a positive and encouraging vibe, is what keeps members engaged and motivated. The studio’s seamless process, from easy online sign-ups via a convenient phone app to a simple check-in process, removes any friction from your workout routine. This level of professionalism and dedication to member experience is what sets Next Phase (now Training Ground) apart as a premier fitness option in Arlington, attracting those who want more from their gym than just a place to exercise. It is a place where every visit is an awesome workout, efficiently completed, with the support of a friendly and knowledgeable team.
Next Phase (now Training Ground) is conveniently located at 850 N Randolph St, Suite 130, Arlington, VA 22203, USA, making it a highly accessible fitness center for local residents. Its prime location in the Ballston neighborhood places it in a bustling area of Arlington, easily reachable for those who live and work nearby. The studio is situated within the Tellus Apartment Building, offering a fantastic benefit for residents of that building, but its central location makes it a great option for anyone in the surrounding communities as well. The facility also includes a wheelchair-accessible car park, which adds a layer of convenience and inclusivity for all visitors. This thoughtful feature demonstrates a commitment to ensuring that every person has a smooth and easy experience getting to and from their workout. While other accessibility features may not be explicitly listed, the existence of a wheelchair-accessible car park suggests a broader dedication to client comfort. The studio's urban location allows members to seamlessly integrate their workouts into their busy schedules, whether it's a quick session before or after work or as a part of a weekend routine. The ease of access, combined with the high-quality services, makes Next Phase (now Training Ground) a practical and appealing choice for local users.
Next Phase (now Training Ground) offers a targeted and effective range of services that are designed to help members achieve their fitness goals in a dynamic and supportive environment. Unlike traditional gyms, the studio specializes in structured group classes and personalized training, ensuring that every workout is productive and safe. The services are built around a unique and challenging approach to fitness, including:
- Aerobics, focusing on cardiovascular endurance and calorie burn.
- Strength training and strength workouts designed to build muscle and increase power.
- Personal training services for those who want a completely customized and one-on-one approach.
- Nutrition consulting to provide a holistic approach to wellness.
- Youth classes and teen training programs, making fitness accessible and fun for a younger audience.
- Both on-site services and online classes, offering flexibility to fit any schedule.
The studio’s workouts are known for their variety, with a circuit-style format that keeps things interesting and helps the class time go by quickly. This constant variation and the phased programming ensure that your body is always challenged in new ways, preventing plateaus and leading to more effective results. The combination of different exercises and equipment, from medicine balls and kettlebells to battle ropes and VersaClimber machines, provides a comprehensive and engaging experience every time you attend a class. This dedicated focus on a specific, proven method is a key part of the studio's appeal and effectiveness.
Next Phase (now Training Ground) boasts several key features and highlights that are central to the member experience. These features go beyond standard amenities and contribute to the studio's reputation as a premium fitness destination. The overall vibe of the studio is consistently praised as “relaxed, yet motivating,” creating a non-intimidating and positive atmosphere. This is a significant highlight for many, as it makes the journey toward fitness more enjoyable and sustainable. The expert instruction is another major feature. The instructors' high energy and attention to individual form are a key part of what makes the workouts so effective and safe. The studio also provides a seamless and convenient experience for members, with a simple check-in process and a dedicated app for class sign-ups. The studio’s commitment to providing a clean environment and a community-focused space is also a major draw. Other notable highlights include:
- A very convenient phone app for seamless class sign-ups.
- The availability of free water for all members.
- A clean and well-maintained studio space.
- Clean and accessible toilet facilities.
- Personalized attention from instructors who ensure correct form to avoid injuries.
- A variety of daily and weekly workouts to keep classes engaging and prevent boredom.
For more information on class schedules, services, and membership options, you can contact Next Phase (now Training Ground) directly. It is highly recommended to reach out to the studio for the most up-to-date information, as their focus is on providing a personal and responsive experience for every potential and current member. The provided address is the physical location of the studio, making it easy to find for an in-person visit. The studio is a personal training facility, so it's a good idea to inquire about their personalized programs and membership details. The team is dedicated to helping you find the right fitness path, whether through their group classes or individual training. Their commitment to customer service is clear from the positive reviews, and a simple phone call can answer any questions you may have about their unique approach to fitness. They are ready to guide you through their offerings and help you get started on your fitness journey. This easy and direct communication is a key component of their professional and client-focused service.
Address: 850 N Randolph St, Suite 130, Arlington, VA 22203, USA
What makes Next Phase (now Training Ground) truly worth choosing for residents of Virginia is its unparalleled combination of a boutique feel with the effectiveness of a well-structured training program. As one member points out, this is a studio that makes you feel like you are part of a “fun and supportive community rather than feeling like a number in the group.” The quality of the classes is consistently high, with members finding them "very challenging" even if they "regularly workout." The instructors are highly praised for their energy and dedication, taking the time to "ensure each student knows how to perform workouts correctly" to prevent injury and maximize results. This level of personalized attention is a significant departure from many large-scale gyms. Furthermore, the constant variety in the workouts—with different stations and rotating themes—keeps things interesting and prevents burnout, which is a common issue with repetitive routines. For a former member who "usually prefer variety over a single workout type," this studio was "the first and only gym I’ve returned to post-pandemic," a powerful testament to its ability to deliver on its promise of a varied and engaging experience. The overall vibe is both "relaxed, yet motivating," making it the perfect place to push yourself without feeling overwhelmed. For those who want an awesome, efficient workout with the guidance of expert trainers and the support of a great community, Next Phase (now Training Ground) is the clear choice in Arlington, Virginia.
Next Phase (now Training Ground) Services
Fitness centre
- Aerobics
- Nutrition consulting
- Personal training
- Youth classes
- Strength Training
- Strength Workouts
- Teen Training
Next Phase (now Training Ground) Details
Service options
- Online classes
- On-site services
Accessibility
- Wheelchair-accessible car park
Amenities
- Toilet
Next Phase (now Training Ground) Photos





Next Phase (now Training Ground) Location
Next Phase (now Training Ground)
850 N Randolph St Suite 130, Arlington, VA 22203, USA
Next Phase (now Training Ground) Reviews
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★ 5★ 4★ 3★ 2★ 1I just moved into Tellus Apartment Building and was excited to have a workout studio within the building. Next Phase offers special rates for Tellus residents which is a great added benefit!!The studio is clean, has free water, a little merchandise, and a very easy check-in process. They have a very convenient phone app to make signing up for classes seamless.I started with the intro week package and loved the classes and trainers. I regularly workout and still found the classes to be very challenging. Each class is what you make it. You adjust how hard or easy you want each class to be.The instructors have high energy and take the time to ensure each student knows how to perform workouts correctly. I love this, so I know I am getting the most out of each workout movement and avoid injuries. The music flows constantly which keeps the group pushing hard!Every Next Phase instructor I’ve meet has been friendly and helpful. The overall vibe of the studio is relaxed, yet motivating. It’s great to walk into class just a couple minutes early, spend 50 minutes, and know I am going to complete an awesome workout.I highly recommend this studio and would take advantage of their unlimited monthly package!
April 10 · Bridgett HoldernessThis is a wonderful studio and fitness option. Small groups (anywhere from 5-15ish people in my classes), personal feel, great and enthusiastic instructors, and well structured intense and effective workouts. The classes vary from day to day and the type of workout varies week to week. The stations keep things interesting and make the class go by quickly. This is the first and only gym I’ve returned to post-pandemic. It’s also one of the only “boutique” studios I’ve gotten a membership at because I usually prefer variety over a single workout type. I feel like I get variety in this class!
September 11 · Jessica MarkeyJust started at Next Phase. Classes are awesome, instructors are very knowledgeable. Both my girlfriend and I have found classes we like. Would recommend.
May 16 · Peter IldefonsoI have started taking classes at Next Phase (outdoors) due to concerns about working out inside due to COVID-19 pandemic. I was a bit apprehensive about taking classes, because I find many boutique studios to have an ultra-competitive and cliquey vibe, and that the workouts are not based in sound science or body mechanics. That is NOT the case with Next Phase. I am usually the oldest (or close to oldest) participant in the classes, and I have felt nothing but welcomed by both the staff and the other participants. The workouts are challenging, but achievable/scalable, and the trainers are encouraging and know their stuff. I have sent a few questions about schedules and classes by email, and Abby, the manager, is responsive and helpful. I am now taking classes 2-3 days a week, and really, really enjoy them!
December 14 · Jennifer SI have really enjoyed my workouts at Next Phase Arlington! The coaches are very encouraging, and push you to be your best. I always leave feeling like I got a great workout. I love the variety of the focus of the classes each week, and always feel like I’ve gotten a good full body workout.
February 20 · Rachel Ingersoll
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