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🔬 Diagnostic Testing

See What
Others Miss.
Measure It First.

Before protocols, before supplements, before interventions — the Functional Longevity Method™ starts with data. FDA-registered BioTekna technologies give you a complete physiological picture in minutes: tissue composition, brain perfusion, cardiovascular stress, and autonomic balance.

Explore BioTekna Suite → Talk to a Specialist
BioTekna Live Assessment
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Prefrontal Perfusion (HEG)
72% — Adequate
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Sympathovagal Balance (PPG)
58% — Elevated Stress
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Visceral Adipose (BIA-ACC)
IMAT: 14% — Monitor
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ANS Coupling / RMSSD (HEG)
38 ms — Good Range

Illustrative sample output · Actual data varies per patient

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Guesswork Wastes Time
Symptom-based care misses root causes. Tissue inflammation, brain perfusion deficits, and ANS dysregulation are invisible without objective measurement.
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Data Drives Outcomes
A 15-minute BioTekna assessment reveals what a standard intake never could — metabolic status, stress physiology, and cognitive regulation all in one session.
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Track Real Progress
Reassess every 30–90 days and show clients measurable change — in tissue quality, HRV, and brain function — not just how they "feel."
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Differentiate Your Practice
FDA-registered technology, clinical-grade outputs, and a science-backed framework separate you from every standard wellness provider in your market.
BIOTEKNA®
FDA-Registered Physiological Assessment Technologies
The Core Suite

Three Technologies.
One Complete Clinical Picture.

BioTekna's Functional Longevity Method™ converts raw physiological data into personalized clinical strategy. Each device targets a distinct regulatory network — together they map the full landscape of your patient's health.

BIA-ACC · Body Composition
Bioimpedance Advanced Composition & Calibration
Maps fat distribution, muscle integrity, tissue inflammation, and metabolic hydration status with clinical precision — revealing what a scale and BMI can never show.
  • ✓ Fat distribution — FM, AAT (abdominal), IMAT (intramuscular)
  • ✓ Muscle integrity and functional mass assessment
  • ✓ Tissue inflammation and extracellular matrix (ECM) quality
  • ✓ Hydration patterns and metabolic status indicators
  • ✓ Sarcopenic trend detection and recovery tracking
Deep Dive: BIA-ACC →
HEG · Brain Assessment
Hemoencephalography
Measures real-time prefrontal blood flow, oxygen metabolism, and cognitive regulation — directly linking brain activation to stress resilience and ANS function.
  • ✓ Prefrontal cortex blood flow & oxygen metabolism
  • ✓ Activation dynamics — Slope and SD profiling
  • ✓ Cognitive control and top-down regulation capacity
  • ✓ ANS coupling — heart rate and RMSSD correlation
  • ✓ Integrated neurofeedback training capability
Deep Dive: HEG →
PPG · Autonomic & Stress
PPG Stress Flow
Delivers a complete autonomic and vascular stress profile — measuring HRV, sympathovagal balance, microcirculation, and metabolic breathing patterns in a single non-invasive session.
  • ✓ Heart rate variability (HRV) & ANS activation state
  • ✓ Sympathovagal balance and stress physiology
  • ✓ Microcirculation and vascular tension mapping
  • ✓ Breathing patterns and metabolic stress (RER)
  • ✓ Guided respiratory biofeedback protocols included
Deep Dive: PPG Stress Flow →
BIA-ACC · Deep Dive

Beyond Body Weight —
Tissue That Tells the Truth

Standard body composition tools measure what's easy. BIA-ACC measures what matters: the quality, distribution, and inflammatory status of the tissue that drives metabolic disease.

Abdominal adipose tissue (AAT) and intramuscular fat (IMAT) are the most metabolically dangerous fat deposits — and both are completely invisible on a standard scale, BMI chart, or DEXA scan. BIA-ACC's advanced impedance calibration detects and quantifies them alongside extracellular matrix (ECM) inflammation markers and hydration compartment status.

Weight Management Metabolic Syndrome Sarcopenia Detection Inflammation Tracking Post-Injury Recovery Longevity Optimization
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IMAT (intramuscular adipose tissue) is strongly correlated with insulin resistance, systemic inflammation, and reduced physical performance — yet it goes entirely undetected by conventional body composition assessments. BIA-ACC identifies it early, when intervention is most effective.
BIA-ACC Sample Output
24.3%
Total Fat Mass (FM)
16.1%
Abdominal Adipose (AAT)
14.0%
Intramuscular Fat (IMAT)
61.2%
Functional Muscle Mass
ECM Inflammation Index Elevated Monitor
Intracellular Hydration Optimal Normal
Sarcopenic Risk Score High Intervene
Metabolic Rigidity Moderate Track

Illustrative sample · Actual output varies per patient

HEG · Deep Dive

Brain Blood Flow —
Measured, Not Assumed

Prefrontal cortex function governs executive control, emotional regulation, impulse inhibition, and stress recovery. HEG measures it directly — in real time — via near-infrared assessment of cortical hemodynamics.

HEG (Hemoencephalography) goes where EEG cannot. While brainwave-based assessments capture electrical activity, HEG tracks the metabolic engine powering the brain — oxygen-rich blood supply to the prefrontal cortex. Combined with simultaneous heart rate and RMSSD capture, it provides a dual neurological-autonomic profile in a single non-invasive session.

Cognitive Performance Stress Resilience Traumatic Brain Injury ADHD & Focus Anxiety & Depression Executive Burnout Neurofeedback Training
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Reduced prefrontal perfusion is associated with diminished working memory, emotional dysregulation, and impaired stress recovery. HEG identifies these deficits non-invasively — and its integrated neurofeedback capability allows real-time training to improve cortical blood flow over time.
HEG Sample Profile
72%
Prefrontal Perfusion Index
0.42
Activation Slope (Δ/min)
38 ms
RMSSD (ANS Coupling)
1.8
Activation SD (Variability)
Executive Control Function Adequate Normal
Stress Resilience Index Reduced Monitor
ANS–Brain Coupling Coherent Normal
Top-Down Regulation Impaired Intervene

Illustrative sample · Actual output varies per patient

PPG Stress Flow · Deep Dive

Your Nervous System,
Mapped in Real Time

Autonomic dysfunction is the silent driver behind chronic stress, cardiovascular disease, and poor recovery. PPG Stress Flow captures the full autonomic picture — from HRV and vascular tone to breath mechanics and sympathovagal regulation.

Photoplethysmography (PPG) captures the pulse waveform at high resolution, extracting HRV frequency analysis, peripheral vascular resistance, and respiratory patterns simultaneously. The result is a comprehensive sympathovagal balance profile that shows exactly where a patient's autonomic system is failing — and by how much. Guided biofeedback protocols are built in for immediate clinical application.

Chronic Stress Cardiovascular Risk HRV Biofeedback Long COVID Adrenal Fatigue Sleep Disorders Performance Recovery
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Sympathovagal imbalance — an overactive sympathetic ("fight-or-flight") system with suppressed vagal tone — is a root driver of hypertension, metabolic syndrome, and immune dysregulation. PPG Stress Flow identifies this imbalance objectively, providing a clinical baseline for intervention and a measurable outcome target.
PPG Stress Flow Sample
28 ms
HRV (RMSSD) — Low
0.71
LF/HF Ratio — Elevated
1.22
RER (Metabolic Stress)
↑ 18%
Vascular Tension Index
Sympathovagal Balance Sympathetic Dominant Intervene
Vagal Tone (HF Power) Suppressed Monitor
Microcirculation Index Restricted Monitor
Respiratory Coherence Normal Normal

Illustrative sample · Actual output varies per patient

The Methodology

The Functional Longevity Method™

A science-driven clinical framework that converts BioTekna physiological data into personalized intervention strategy — and tracks outcomes at every step.

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Assess
Run the full BioTekna suite: BIA-ACC, HEG, and PPG Stress Flow. Capture baseline data across all three regulatory networks in one 15–20 minute session.
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Interpret
BioTekna software converts raw data into clinical outputs — visualized reports identifying dysfunction, risk levels, and intervention priorities for your patient.
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Strategize
Build a personalized protocol using FA technologies — microcurrent, PEMF, peptides, breathwork, or nutritional support — matched to the patient's specific data.
⚙️
Intervene
Apply targeted therapies with precision. Every FA technology maps to one or more BioTekna biomarker domains — you know exactly what you're treating and why.
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Track & Optimize
Reassess every 30–90 days. Show clients measurable progress in tissue quality, brain perfusion, and autonomic balance — not just subjective symptom improvement.
Companion Diagnostics

Complete the Picture

Pair the BioTekna suite with these specialized tools for even deeper neurological and cardiovascular data.

By BrainTap
Neuro Check
BrainTap's Neuro Check is a rapid, non-invasive brainwave assessment that evaluates neural efficiency, cognitive flexibility, and stress-state dominance through quantitative EEG (qEEG) analysis. It produces a personalized brain performance report in minutes — without a clinical EEG setup.
  • Brainwave frequency distribution across all five bands (delta, theta, alpha, beta, gamma)
  • Neural efficiency ratio and hemispheric balance
  • Cognitive flexibility and attentional control index
  • Stress-state vs. recovery-state dominance profiling
  • Personalized BrainTap audio-visual session recommendations
💡 Pairs with: BioTekna HEG for a complete brain performance picture — Neuro Check reveals brainwave patterns while HEG maps the blood flow driving them.
By Therasage
Heart Scientific
Therasage's Heart Scientific system provides clinical-grade cardiovascular assessment using advanced photoplethysmography and pulse wave analysis. It evaluates cardiac output, arterial stiffness, and vascular age to identify cardiovascular risk factors before they become critical.
  • Arterial stiffness index and pulse wave velocity (PWV)
  • Vascular age calculation vs. chronological age
  • Cardiac output and peripheral resistance profiling
  • Augmentation index — aortic pressure wave analysis
  • Cardiovascular risk stratification report
💡 Pairs with: BioTekna PPG Stress Flow for a complete cardiovascular-autonomic profile — Heart Scientific captures structural vascular data while PPG maps functional ANS regulation.
Ideal For

Built for Data-Driven Practitioners

BioTekna diagnostic tools integrate into any clinical or wellness practice where objective measurement drives better outcomes.

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Chiropractors (DC)
Tissue inflammation + ANS baseline per patient
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Naturopathic Doctors
Root cause data to guide natural protocols
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Functional Medicine
Metabolic + neurological + cardiac in one suite
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Sports Performance
Track recovery, IMAT, and brain-ANS coupling
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Massage Therapists
Tissue quality & stress physiology data per session
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Integrative Clinics
Full diagnostic suite as a premium intake service
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Wellness Centers
Differentiate with objective biometric reporting
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MD / DO / NP
Non-invasive adjunct to standard clinical intake
FAQ

Diagnostic Testing Questions

A complete assessment using all three BioTekna devices — BIA-ACC, HEG, and PPG Stress Flow — typically takes 15–25 minutes per patient. Each individual test takes 5–8 minutes. Most practitioners run all three sequentially in a single appointment slot, with report generation happening automatically at the end of each assessment.
BioTekna devices are FDA-registered Class II wellness and physiological assessment devices. While clinical credentials are not always required to purchase, we recommend BioTekna technology for licensed practitioners — DCs, NDs, MDs, NPs, PTs, and LMTs — who can appropriately interpret and apply the data within their scope of practice. Training and certification is included with all BioTekna packages through First Alternatives.
BioTekna data maps directly to the FA technology ecosystem. For example: elevated IMAT from BIA-ACC may indicate microcurrent and PEMF protocols; low prefrontal perfusion from HEG suggests brain entrainment and targeted peptide support; autonomic sympathetic dominance from PPG Stress Flow may call for breathwork, red light therapy, and HRV-biofeedback-guided sessions. FA training walks you through these correlations systematically.
They're complementary rather than redundant. PPG Stress Flow focuses on functional autonomic regulation — HRV, sympathovagal balance, and real-time stress physiology, including guided biofeedback protocols. Heart Scientific focuses on structural cardiovascular assessment — arterial stiffness, vascular age, and aortic pressure wave analysis. Used together, they provide both the functional and structural dimensions of cardiovascular health.
The Functional Longevity Method™ protocol recommends reassessment every 30–90 days, depending on the intensity of intervention. This allows enough time for measurable physiological change while maintaining clinical engagement. Many practitioners offer the initial assessment as a premium service, then include quarterly reassessments as part of their ongoing care model or FA Care membership.
Yes. All BioTekna device packages through First Alternatives include onboarding training on device operation, report interpretation, and clinical application. FA also offers CEU-eligible advanced training courses on applied BioTekna protocol development. Contact us for current training schedules and bundled device + education packages.
Ready to Add Diagnostics?

Start Measuring.
Start Knowing.

Add BioTekna diagnostic technology to your practice and give every patient the objective clarity their health deserves.

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