Knowledge Base · Austin, TX

Everything You Need to Know
Before Your Biomechanical Screening.

Straight answers — no filler. If you're a high-achieving Austin executive weighing your options, these are the questions we hear most. Read them. Then book your audit.

25+ Questions Answered
4 Categories
NASM-CES Expert Credentials
0 Sales Pressure
// Category 01
Getting Started

Your complimentary Biomechanical Screening is a structured 30-minute diagnostic session conducted at your home, office, or building gym in Austin. There is zero sales pressure and zero commitment required.

During the session, Danny Trejo — NASM-CES — performs a biomechanical movement screen, reviews your pain and injury history, identifies your primary performance gaps, and delivers a personalized protocol preview. You leave with clinical clarity about where your body is performing and where it's failing you.

Think of it as a lab report for your physical capital — not a sales pitch.

Held at your location · Austin, TX

A gym membership gives you access to equipment. RxFit gives you a clinical protocol designed around your specific biomechanical profile, injury history, and performance goals.

Key differences:

  • RxFit comes to you — no commute, no parking, no locker room
  • Every session is periodized, documented, and adjusted based on your biometric data
  • Danny Trejo holds a NASM Corrective Exercise Specialist (CES) credential — most gym PTs do not
  • RxFit treats root-cause kinetic chain dysfunction, not surface-level symptoms
  • You get a longevity framework, not just "reps and sets"
Corrective Science vs. Generic Programming

RxFit serves the entire Greater Austin metro with primary coverage in West Austin's high-density wealth corridors:

  • Tarrytown (78703)
  • West Lake Hills / Westlake (78746)
  • Downtown Austin (78701)
  • Barton Hills / Zilker (78704)
  • Northwest Hills (78731)
  • Rollingwood (78746)
  • Bee Cave (78738) · Lakeway · Cedar Park · The Domain

If you're within a reasonable drive of the 78746 zip code, we can serve you. Call (737) 320-3100 to confirm your address.

Danny Trejo is the founder of RxFit and holds the following credentials:

  • NASM Certified Personal Trainer (CPT) — National Academy of Sports Medicine
  • NASM Corrective Exercise Specialist (CES) — advanced certification in identifying and correcting kinetic chain dysfunctions
  • Background in Microbiology — providing the cellular and biological foundation for RxFit's longevity protocols

This combination of biomechanical and biological science is what separates RxFit from a conventional personal trainer. Danny understands the body at the tissue level, not just the movement pattern level.

NASM-CES · Microbiology Background · Austin, TX

None, initially. RxFit's first priority is restoring your biomechanical baseline — and corrective exercise protocols are largely bodyweight and mobility-based. Danny brings any required tools for the assessment.

As your protocol evolves, we may recommend minimal investment in resistance bands, kettlebells, or TRX-style suspension trainers. All recommendations are tailored to your specific protocol needs and home environment — not pushed as product upsells.

📦 We bring the tools · You bring the space

RxFit is a concierge in-person service — this is core to the brand and to the clinical quality of the protocol. Biomechanical screens and corrective exercise corrections require physical observation, tactile cuing, and real-time kinetic chain analysis that simply cannot be replicated over a screen.

That said, for existing clients who travel frequently, we offer supplemental programming guides and remote check-in protocols between in-person sessions.

RxFit operates on a 24-hour cancellation policy. Sessions cancelled or rescheduled with less than 24 hours notice may be subject to a session fee. We respect your time — and ask that you respect ours.

To reschedule, contact Danny directly at (737) 320-3100 or email [email protected]. Most clients find that a recurring weekly slot eliminates the scheduling friction entirely.

// Category 02
The Protocol

A Corrective Exercise Specialist (CES) is a NASM-certified fitness professional with advanced training in identifying movement compensations, muscle imbalances, and kinetic chain dysfunctions — and designing protocols to correct them.

Unlike a standard personal trainer who programs workouts, a CES analyzes why your body moves the way it does. If your left hip drops when you walk, or your shoulder impinges during pressing movements, those are compensations with identifiable root causes — often in joints and tissues far from where you feel pain.

Think of a CES as the difference between a GP and a physiatrist. Both treat the body — but the CES specializes in the kinetic chain, movement dysfunction, and corrective programming. Danny Trejo is one of a limited number of NASM-CES practitioners offering in-home concierge services in Austin.

NASM-CES · Kinetic Chain Analysis

A personal trainer typically focuses on short-term goals: weight loss, muscle gain, or general fitness programming. Sessions are often reactive to client preferences, not driven by biological data or long-term health trajectory.

A longevity coach — like Danny Trejo at RxFit — operates on a completely different framework:

  • The goal is biological age reduction and healthspan extension, not just aesthetics
  • Protocols are built around HRV data, recovery metrics, and metabolic markers
  • Training is periodized to optimize hormonal response, not just hypertrophy
  • Nutrition, sleep, and stress management are integrated into the protocol
  • The timeframe is years and decades, not 12-week challenges
📅 Healthspan > Aesthetics

Yes — this is one of RxFit's strongest clinical competencies. Danny Trejo's NASM-CES training specifically addresses post-rehabilitation populations: individuals recovering from surgery, managing chronic pain conditions, or dealing with structural issues like herniated discs, spinal stenosis, or rotator cuff pathologies.

RxFit operates in the space between physical therapy discharge and independent gym training — a phase where most patients are left without structured guidance and commonly re-injure.

Important: RxFit always coordinates with your medical team. We require clearance documentation for post-surgical clients and work collaboratively with your orthopedic surgeon or physical therapist to ensure protocol alignment.

⚕ Post-Rehab Specialist · MD-Coordinated

Heart Rate Variability (HRV) is the variation in time between consecutive heartbeats. Counter-intuitively, higher HRV indicates better autonomic nervous system function and greater resilience to stress — both physical and cognitive. It is one of the most validated biomarkers for overall health and recovery capacity.

RxFit uses HRV data — typically from devices like WHOOP, Garmin, or Oura Ring — to dynamically adjust training intensity, volume, and recovery periods. On days where your HRV indicates systemic stress or poor recovery, we modulate the protocol accordingly, preventing overtraining and maximizing adaptation.

This is the difference between a data-driven longevity protocol and guesswork at the gym.

WHOOP · Oura · Garmin Integration

Biohacking refers to applying data, technology, and lifestyle interventions to optimize human biology beyond its default state. In Austin's executive wellness community, biohacking has become shorthand for a precision-first approach to health.

RxFit integrates evidence-based biohacking principles across several domains:

  • Movement: HRV-modulated training and corrective biomechanics
  • Metabolic: Periodized fasting integration and zone 2 cardio programming
  • Recovery: Sleep hygiene protocols and parasympathetic nervous system activation
  • Hormonal: Training periodized around natural testosterone and cortisol rhythms
  • Longevity: Vo2 max optimization and muscle quality preservation (sarcopenia prevention)
Evidence-Based · Biohacking Austin

A typical RxFit session runs 60–75 minutes and follows a structured clinical framework:

  • Check-In (5 min): HRV review, sleep quality, stress levels, subjective soreness assessment
  • Corrective Warm-Up (10–15 min): Targeted activation of inhibited muscles, joint mobility work
  • Primary Protocol (35–40 min): Strength, corrective movement, or longevity-focused training based on your periodization phase
  • Cool-Down & Mobility (10 min): Parasympathetic activation, fascial release, breathwork
  • Session Notes (5 min): Documentation of performance metrics and adjustments for next session
60–75 min · Fully Documented

Most RxFit clients report measurable pain reduction and improved movement quality within 2–4 weeks of starting a corrective protocol — particularly those with chronic back, shoulder, or hip issues.

For longevity and body composition goals, meaningful changes in strength, energy levels, and body composition typically emerge at the 6–12 week mark, with significant long-term gains in HRV, VO2 max, and biological age markers at 6–12 months of consistent training.

Results depend on protocol consistency, sleep quality, nutrition habits, and stress load — all of which we help you audit and optimize.

📈 2–4 weeks corrective · 6–12 weeks body composition

RxFit provides evidence-based nutrition frameworks integrated with your training protocol — not cookie-cutter meal plans. Danny Trejo's background in microbiology gives him a cellular-level understanding of metabolic processes that most personal trainers simply don't possess.

Guidance includes: protein periodization for muscle quality preservation, circadian-aligned eating strategies, anti-inflammatory dietary principles, and supplement frameworks for longevity (NAD+, creatine, omega-3s, etc.).

For clinical nutrition prescriptions — medical nutrition therapy — RxFit refers out to registered dietitians as appropriate.

// Category 03
Pricing & Logistics

In-home personal training in Austin typically ranges from $80–$200+ per session depending on the trainer's credentials, experience, and service model. Standard gym-based trainers typically fall in the $60–$100 range; concierge specialists with advanced certifications like NASM-CES range $120–$250+.

RxFit's pricing reflects the clinical quality, advanced credentials, and concierge delivery model — not a commodity workout service. We offer structured protocol packages, not pay-per-session gym rates.

Book your complimentary assessment first — pricing and package structures are discussed transparently during your audit, based on your specific protocol needs and session frequency.

Get Pricing at Your Audit →
Austin, TX · Concierge Pricing

Health Savings Accounts (HSAs) and Flexible Spending Accounts (FSAs): Many RxFit clients successfully use HSA/FSA funds for corrective exercise and post-rehabilitation training, particularly when paired with physician documentation identifying the training as medically necessary for a specific condition (e.g., post-surgical recovery, chronic pain management, herniated disc rehabilitation).

We recommend consulting with your HSA administrator and physician to confirm eligibility for your specific situation. RxFit can provide detailed session documentation to support HSA/FSA reimbursement requests.

Health insurance: RxFit does not bill health insurance directly. Personal training is generally not a covered benefit under standard health insurance plans.

💳 HSA/FSA Eligible (w/ physician documentation)

For most Austin executive clients, 2–3 sessions per week is the optimal starting cadence. This frequency allows for sufficient stimulus and adequate recovery while building the foundational movement quality that more advanced training requires.

Some clients with acute corrective needs start at 3x/week to accelerate biomechanical retraining. Others — particularly established clients maintaining a high fitness baseline — operate on a 1–2x/week protocol supplemented by independent training programs Danny designs for them.

Session frequency is always determined by your audit findings and lifestyle constraints — not pushed as a billing strategy.

RxFit operates on protocol packages, not locked gym contracts. We believe the results should retain you — not fine print. Package structures are discussed transparently at your complimentary audit based on your clinical protocol requirements.

The audit itself is completely free, with zero obligation to purchase anything afterward.

✅ No contracts · Results-based retention

RxFit serves Austin executives 7 days a week, 5:00 AM – 9:00 PM. Early morning sessions (5–7 AM) before your workday are among our most popular time slots for executive clients in Tarrytown, Westlake, and Downtown Austin.

Because RxFit is a concierge service that comes to you, scheduling is flexible around your calendar — not constrained by a gym's operating hours.

Contact us at (737) 320-3100 or book your audit online to claim your preferred recurring time slot.

📅 Mon–Sun · 5AM–9PM · Mobile
// Category 04
Longevity & Corrective Science

Biological age — as opposed to chronological age — reflects how your cells, tissues, and systems are actually functioning. It is measurable via biomarkers like VO2 max, grip strength, HRV, inflammatory markers (CRP, IL-6), and increasingly, epigenetic methylation clocks.

RxFit's longevity protocols target biological age reduction through several evidence-based mechanisms:

  • VO2 Max Optimization: Zone 2 aerobic training is the single highest-impact intervention for biological age reduction per current longevity research (Attia, Longo, Sinclair)
  • Muscle Quality Preservation: Resistance training protocols targeting type II muscle fiber retention prevent age-associated sarcopenia — the primary driver of functional decline in executives 40+
  • HRV Improvement: Periodized recovery and parasympathetic training directly improve autonomic nervous system function
  • Inflammatory Load Reduction: Movement quality correction reduces chronic mechanical stress — a significant driver of systemic inflammation
  • Mobility & Joint Health: Preserving joint range of motion and connective tissue integrity prevents the cascading orthopedic events that accelerate biological aging
Longevity Coach Austin · Biological Age Reduction

Executive wellness is a precision health discipline designed for high-performance individuals — founders, C-suite executives, and senior professionals — who require a health optimization framework that matches the complexity and demands of their professional lives.

RxFit is Austin's premier executive wellness provider in the physical performance and longevity domain. Our client profile is the Austin Achiever: executives aged 35–55, $250K+ income, primarily located in Westlake, Tarrytown, and Downtown Austin. These clients don't have time for generic gym protocols — they need a clinical protocol that delivers measurable ROI on their biological capital.

💼 Executive Wellness Austin · C-Suite Protocol

Zone 2 training refers to cardiovascular exercise performed at an intensity where you can maintain a conversation — typically 60–70% of maximum heart rate. At this intensity, the body primarily oxidizes fat for fuel, and the mitochondria in your slow-twitch muscle fibers undergo significant adaptive improvements.

Current longevity research — championed by Dr. Peter Attia, Dr. Rhonda Patrick, and others — identifies Zone 2 as the single most impactful training modality for extending healthspan. It improves:

  • Mitochondrial density and efficiency (the root of cellular energy production)
  • VO2 max (the strongest independent predictor of all-cause mortality)
  • Metabolic flexibility (the ability to switch between fat and glucose as fuel)
  • Cardiac output and stroke volume

RxFit integrates Zone 2 protocols into executive longevity programs, delivered at your home, on your treadmill or bike, or through structured outdoor movement patterns.

🫀 VO2 Max · Mitochondrial Health · Zone 2

Yes — this is one of the most common presentations we address. Prolonged desk work creates a predictable pattern of kinetic chain dysfunction: anterior pelvic tilt, hip flexor shortening, thoracic spine kyphosis (the "desk posture"), and reciprocal inhibition of the glutes and deep spinal stabilizers.

The result is chronic lower back pain that isn't structurally pathological — it's a movement problem. And movement problems respond to corrective exercise protocols.

Danny Trejo's NASM-CES methodology systematically identifies which muscles are overactive (causing compression) and which are underactive (failing to stabilize), then uses a progressive inhibit-lengthen-activate-integrate sequence to restore the kinetic chain.

Most clients with desk-related back pain see significant relief within 3–6 weeks of consistent corrective work.

🖥 Desk Posture Correction · Back Pain Austin

Physical therapy (PT) is a licensed medical profession that diagnoses and treats movement disorders, typically post-injury or post-surgery. PT is usually short-term, insurance-covered, and focused on restoring baseline function.

Corrective exercise — as practiced by an NASM-CES like Danny Trejo — picks up where PT leaves off (or addresses sub-clinical dysfunctions before they become injuries). It is a fitness-domain practice focused on optimizing movement quality, correcting compensatory patterns, and building long-term resilience.

RxFit is not a replacement for physical therapy when PT is medically indicated. Rather, we are the bridge between PT discharge and independent high-performance training — and the preventive layer that keeps our clients out of the PT office in the first place.

⚕ Post-PT Bridge · Preventive Corrective

Current longevity science — Peter Attia's Outlive, the work of Longo and Sinclair, and large epidemiological datasets — converges on a clear prescription for longevity training after 40:

  • Zone 2 Cardio (3–4x/week, 45–60 min): The highest-impact single intervention for VO2 max, mitochondrial health, and all-cause mortality reduction
  • Heavy Resistance Training (2–3x/week): Preserves muscle mass (sarcopenia is the primary driver of functional decline), improves bone density, and maintains metabolic rate
  • VO2 Max Intervals (1x/week): Brief high-intensity intervals to maintain peak cardiovascular capacity
  • Mobility & Stability Work (daily): Prevents the orthopedic cascade that derails training consistency in the 45–55 age bracket

RxFit designs and delivers this exact framework — periodized, individualized, and adapted to your current fitness baseline.

Longevity Training Austin · Science-Backed

Significantly. Most personal trainers understand the body at a mechanical level — muscles, joints, movement patterns. Danny's microbiology background gives him a cellular and biochemical framework that informs every aspect of RxFit's protocols.

This includes: understanding how muscle protein synthesis is triggered and optimized at the molecular level, how inflammatory cytokines produced by dysfunctional movement compound systemic health risks, how mitochondrial biogenesis responds to specific training stimuli, and how hormonal cascades (cortisol, testosterone, GH, IGF-1) are affected by training timing, intensity, and recovery.

The result: RxFit protocols are grounded in biology, not bro-science. This is what makes RxFit Austin's premier longevity training service — not just another in-home trainer.

Microbiology · Cellular Performance Science

Absolutely — and this is where RxFit delivers the highest ROI. The further from your biological potential you are, the faster and more dramatic the initial gains. A sedentary executive with chronic desk posture, deconditioning, and a 5-year gap in consistent training responds powerfully to a properly designed corrective and longevity protocol.

RxFit meets you where you are — literally and biologically. Your complimentary audit establishes your true baseline without judgment, and your protocol is built upward from there at a pace that prevents injury while delivering measurable progress.

The only wrong move is to keep waiting.

✅ Beginner to Advanced · Any Baseline
No Commitment Required

Your biomechanical screening
starts here.

Thirty minutes. Your location. A clinical snapshot of where your body is performing — and where it's failing you. Complimentary. Always.

Book A Complimentary Assessment →
No credit card · No commitment · Austin-based executives only