What Is TRX Suspension Training? A Complete Beginner’s Guide

TRX stands for Total Resistance eXercise. It’s a suspension training system developed by a former US Navy SEAL named Randy Hetrick, who originally built a prototype using a jiu-jitsu belt and parachute webbing to maintain his fitness during overseas deployments where equipment wasn’t available.

The commercial version, now used in gyms, military training facilities, physical therapy clinics, and professional sports programs worldwide, consists of two adjustable nylon straps with handles and foot cradles that attach to a single anchor point above you. You use your own body weight as the resistance, adjusting the difficulty of any exercise by changing your body angle relative to the anchor.

That’s the whole system. Two straps, one anchor, your body weight. The elegance is in how much you can do with it.

The key principle that makes TRX different from almost every other training tool is instability. When you perform a standard push-up on the floor, your hands are on a fixed, stable surface. When you perform a TRX push-up with your hands in the suspension handles, the handles move, and your body has to stabilize against that movement while simultaneously producing force.

This instability forces continuous activation of stabilizer muscles, particularly in the core, shoulders, hips, and ankles, that conventional exercises on stable surfaces largely bypass. Every TRX exercise is simultaneously a primary movement and a core stability challenge.

The difficulty adjustment mechanism is simple and intuitive:

This means the same exercise can be scaled from beginner to advanced by moving your feet six inches in either direction. No weight plates to change, no machine adjustments, no spotter required.

TRX is a full-body training system, not a specialty tool for one muscle group. Here’s how the major movement patterns map to muscle groups:

The core is never ‘off’ during TRX training. Because the straps introduce instability in every plane of motion, your core musculature is engaged as a stabilizer throughout every exercise, not just during dedicated core movements. This is one of TRX’s most significant advantages for functional fitness.

This is the most common question people ask before trying TRX, and the honest answer is that they’re complementary tools rather than alternatives. Here’s how they compare across key variables:

Resistance and Progressive Overload
Free weights have an important advantage in absolute load capacity. You can put 200 pounds on a barbell squat. You cannot put 200 pounds on a TRX squat, the resistance is capped by your body weight. For developing maximum strength and significant muscle hypertrophy, free weights provide a higher ceiling.

TRX compensates partially through angle manipulation and the stabilization demands that increase effective difficulty, but for serious strength athletes, TRX works best as a complement to barbell and dumbbell training rather than a replacement.

Here TRX wins clearly. The instability inherent in suspension training activates stabilizer muscles to a degree that most free weight exercises don’t approach. Research comparing TRX push-ups to floor push-ups shows significantly higher core muscle activation in the TRX variation, even at equivalent perceived effort.

For functional fitness, injury prevention, and sport-specific conditioning, where the body never moves in perfectly controlled planes, TRX’s superior stabilization demands translate directly to real-world capability.

Scalability and Accessibility
TRX is more immediately accessible for beginners than free weights, for two reasons. First, the body weight loading is inherently appropriate for most starting fitness levels, there’s no risk of accidentally loading too much weight. Second, the angle adjustment means a single exercise can be made easy enough for a complete beginner or hard enough to challenge an experienced athlete.

For new exercisers who feel intimidated by the weights section of a gym, TRX provides an entry point to resistance training that feels more manageable and intuitive.

Joint Friendliness
TRX is generally kind to joints. Because you’re always moving through a range of motion that your own body controls, there’s no external load forcing joints into positions they can’t handle. TRX rows and TRX push variations are commonly used in rehabilitation settings for shoulder injuries because they allow strengthening work without the compressive loads of barbell pressing.

People with knee concerns often find TRX squat and lunge variations more comfortable than loaded barbell equivalents, because the suspension allows for more upright torso positioning and reduced shear forces at the knee joint.

The 8 Best TRX Exercises for Beginners
These eight exercises cover all major movement patterns and are appropriate for someone with no prior TRX experience. Start with the easier angle variation and progress as the movement becomes comfortable:

Hold both handles with arms extended, feet shoulder-width apart. Lower into a squat while keeping light tension on the straps for balance assistance. Drive through the heels to return to standing. This teaches the squat pattern with support before progressing to unsupported variations.

2. TRX Row
Face the anchor, hold handles with palms facing each other, lean back so your body is at roughly 45 degrees. Pull your chest toward the handles while keeping your body in a straight line. This is one of the most important pulling exercises in any program, develops the back and biceps, counteracts the forward rounding that desk work creates.

3. TRX Push-Up
Face away from the anchor, hold handles at chest height, adopt a push-up position. Lower your chest toward the handles and press back up. Adjust difficulty by moving your feet further forward (easier) or further back toward the anchor (harder). The handles moving beneath you make this significantly more challenging than a floor push-up.

Most participants report muscle soreness after their first TRX session in places they weren’t expecting, the deep core stabilizers, the rear deltoids, the glutes from single-leg work. This is the stabilizer activation doing its job. The soreness reduces significantly after the first two or three sessions as those muscles adapt.

Is TRX Right for You?
TRX is an effective training tool for a wide range of people, but it’s particularly well-suited to:
• Beginners who want to build full-body strength without navigating the free weights section
• People returning from injury who need low-impact, joint-friendly resistance training
• Athletes who want to improve functional strength, stability, and movement quality
• Anyone who finds conventional gym equipment monotonous and wants a more varied, skill-based training experience
• People who travel regularly can TRX straps pack into a bag and can be anchored to a door, making them one of the most portable and effective training tools available

The one group for whom TRX is insufficient as a sole training method: advanced strength athletes who need maximum loading for muscle hypertrophy or peak strength development. For everyone else, TRX either works excellently as a primary tool or as a highly effective complement to other training.

The most consistent feedback from new TRX participants at BTTC: ‘I didn’t expect it to be that hard.’ Bodyweight training carries an underserved reputation for being easy. A well-designed TRX session is as demanding as any gym workout; the difficulty is just expressed differently.

Getting Started with TRX at BTTC
BTTC’s TRX classes are available as part of the group training schedule at 800 McKenzie Ave, Bellingham, WA. Check the current schedule at betrainingtennis.com/group-training-schedules/ or call (360) 733-5050 to ask about class times and availability.

If you’ve never trained with TRX before, let the instructor know before class starts. They’ll walk you through the handle adjustment, the basic positioning principles, and the angle modification so you’re set up correctly from the first exercise.