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ESSENTIAL 5 · READING GUIDE

Measurement

Understand what a signal, questionnaire or composite index actually measures.

A curated introduction to the question, with a reason to read each selection. This guide is not a systematic review or an evidence ranking.

  1. 01

    Start with the protocol: what should be considered when recording and reporting HRV?

    2017 · Methodological review

    Heart Rate Variability and Cardiac Vagal Tone in Psychophysiological Research - Recommendations for Experiment Planning, Data Analysis, and Data Reporting

    Sylvain Laborde · Emma Mosley · Julian F. Thayer
    Frontiers in Psychology

    Read the research noteOriginal publication
  2. 02

    Question the interpretation: why is the LF/HF ratio not a straightforward measure of autonomic balance?

    2013 · Methodological review

    The LF/HF ratio does not accurately measure cardiac sympatho-vagal balance

    George E. Billman
    Frontiers in Physiology

    Read the research noteOriginal publication
  3. 03

    Compare a questionnaire: which experiences does the Recovery Experience Questionnaire assess?

    2007 · Measurement study

    The Recovery Experience Questionnaire: development and validation of a measure for assessing recuperation and unwinding from work

    Sabine Sonnentag · Charlotte Fritz
    Journal of Occupational Health Psychology

    Read the research noteOriginal publication
  4. 04

    Move to a composite index: how do marker selection and scoring change the measure?

    2022 · Systematic review

    Allostatic Load Measurement: A Systematic Review of Reviews, Database Inventory, and Considerations for Neighborhood Research

    Shawna Beese · Julie Postma · Janessa M. Graves
    International Journal of Environmental Research and Public Health

    Read the research noteOriginal publication
  5. 05

    Ask about comparability: what can a multi-cohort analysis contribute to harmonisation?

    2023 · Meta-analysis

    Towards a consensus definition of allostatic load: a multi-cohort, multi-system, multi-biomarker individual participant data (IPD) meta-analysis

    Cathal McCrory · Sinead McLoughlin · Richard Layte · Cliona NiCheallaigh · Aisling M. O’Halloran · Henrique Barros · Lisa F. Berkman · Murielle Bochud · Eileen M. Crimmins · Meagan T. Farrell · Silvia Fraga · Emily Grundy · Michelle Kelly-Irving · Dusan Petrovic · Teresa Seeman · Silvia Stringhini · Peter Vollenveider · Rose Anne Kenny
    Psychoneuroendocrinology

    Read the research noteOriginal publication

Explore Measurement & Interpretation →

START HERE

A way into the research.

Choose a question. Read the selections in order, then explore the full library.

All papers
01
Essential 5

Allostatic Load

From the cost of adaptation to the choices behind a multi-system index.

02
Essential 5

Recovery Science

Connect recovery at work, after lost sleep and in sport—while keeping the outcomes distinct.

03
Essential 5

Reserve & Resilience

Separate capacity from response, and follow how different fields define resilience.

04
Essential 5

Measurement

Understand what a signal, questionnaire or composite index actually measures.

Selected for a useful reading sequence. The order is not an evidence ranking.

Start with a question.

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ExploreQuestions about Human AdaptationExploreMeasurement & InterpretationReading guide · Essential 5Allostatic LoadReading guide · Essential 5Recovery ScienceReading guide · Essential 5Reserve & ResilienceReading guide · Essential 5MeasurementFoundationsLoadFoundationsAllostasisFoundationsRecoveryFoundationsAllostatic LoadFoundationsPhysiological ReserveFoundationsResilienceFeaturesAllostatic Load: The Hidden Cost of AdaptationFeaturesRecovery Is Not RestFeaturesModels of Adaptation: What Different Frameworks ExplainFeaturesTAP Human Adaptation FrameworkFeaturesAre Recovery and Resilience the Same Thing?FeaturesDoes Recovery Always Mean Returning to the Same Baseline?FeaturesHow Are Physiological Reserve and Resilience Related?FeaturesWhat Can HRV Tell Us About Recovery?FeaturesWhy Feeling Better Doesn’t Always Mean Fully RecoveredMethods & projectEvidence grading & methodsMethods & projectEditorial & scientific standardsMethods & projectAbout the projectResearch · 1993Stress and the individual. Mechanisms leading to diseaseResearch · 1998Protective and damaging effects of stress mediatorsResearch · 2003The cumulative cost of additional wakefulness: dose-response effects on neurobehavioral functions and sleep physiology from chronic sleep restriction and total sleep deprivationResearch · 2006The perseverative cognition hypothesis: a review of worry, prolonged stress-related physiological activation, and healthResearch · 2007The Recovery Experience Questionnaire: development and validation of a measure for assessing recuperation and unwinding from workResearch · 2009The Reactive Scope Model — A new model integrating homeostasis, allostasis, and stressResearch · 2010Neurobehavioral dynamics following chronic sleep restriction: dose-response effects of one night for recoveryResearch · 2010Greater cardiovascular responses to laboratory mental stress are associated with poor subsequent cardiovascular risk status: a meta-analysis of prospective evidenceResearch · 2010Allostatic load biomarkers of chronic stress and impact on health and cognitionResearch · 2011Stress- and Allostasis-Induced Brain PlasticityResearch · 2012Allostasis: a model of predictive regulationResearch · 2013The LF/HF ratio does not accurately measure cardiac sympatho-vagal balanceResearch · 2013Effects of recovery sleep after one work week of mild sleep restriction on interleukin-6 and cortisol secretion and daytime sleepiness and performanceResearch · 2014Clarifying the roles of homeostasis and allostasis in physiological regulationResearch · 2014Resilience definitions, theory, and challenges: interdisciplinary perspectivesResearch · 2015Recovery from job stress: The stressor-detachment model as an integrative frameworkResearch · 2016Physiological concomitants of perseverative cognition: A systematic review and meta-analysisResearch · 2016Physical Resilience in Older Adults: Systematic Review and Development of an Emerging ConstructResearch · 2017Heart Rate Variability and Cardiac Vagal Tone in Psychophysiological Research - Recommendations for Experiment Planning, Data Analysis, and Data ReportingResearch · 2017A Meta-Analysis on Antecedents and Outcomes of Detachment from WorkResearch · 2018Recovery and Performance in Sport: Consensus StatementResearch · 2019Ad libitum Weekend Recovery Sleep Fails to Prevent Metabolic Dysregulation during a Repeating Pattern of Insufficient Sleep and Weekend Recovery SleepResearch · 2019Resilience in Clinical Care: Getting a Grip on the Recovery Potential of Older AdultsResearch · 2020Whitepaper: Defining and investigating cognitive reserve, brain reserve, and brain maintenanceResearch · 2021Leaving Work at Work: A Meta-Analysis on Employee Recovery From WorkResearch · 2022"Give me a break!" A systematic review and meta-analysis on the efficacy of micro-breaks for increasing well-being and performanceResearch · 2022Allostatic Load Measurement: A Systematic Review of Reviews, Database Inventory, and Considerations for Neighborhood ResearchResearch · 2022Allostatic Load and Mortality: A Systematic Review and Meta-AnalysisResearch · 2022Recovery from Work: Advancing the Field Toward the FutureResearch · 2023Conceptualizing a resilience research framework at The National Institutes of HealthResearch · 2023Towards a consensus definition of allostatic load: a multi-cohort, multi-system, multi-biomarker individual participant data (IPD) meta-analysisResearch · 2024Impact of baseline and longitudinal allostatic load changes on incident cardiovascular disease and all-cause mortality: A 7-year population-based cohort study in ChinaResearch · 2025Resilience phenotypes derived from an active inference account of allostasisResearch · 2026Building an ontology of resilience: Insights from the physical resilience literatureTAP Record · TAP-CON-0001LoadTAP Record · TAP-CON-0002AllostasisTAP Record · TAP-CON-0003RecoveryTAP Record · TAP-CON-0004Allostatic LoadTAP Record · TAP-CON-0005Physiological ReserveTAP Record · TAP-CON-0006ResilienceTAP Record · TAP-FTR-0001Allostatic Load: The Hidden Cost of AdaptationTAP Record · TAP-FTR-0002Recovery Is Not RestTAP Record · TAP-FTR-0008Models of Adaptation: What Different Frameworks ExplainTAP Record · TAP-MDL-0001TAP Human Adaptation FrameworkTAP Record · TAP-FTR-0006Are Recovery and Resilience the Same Thing?TAP Record · TAP-FTR-0007Does Recovery Always Mean Returning to the Same Baseline?TAP Record · TAP-FTR-0004How Are Physiological Reserve and Resilience Related?TAP Record · TAP-FTR-0005What Can HRV Tell Us About Recovery?TAP Record · TAP-FTR-0003Why Feeling Better Doesn’t Always Mean Fully RecoveredTAP Record · TAP-RDN-0001TAP reading note: Stress and the individual. Mechanisms leading to diseaseTAP Record · TAP-RDN-0002TAP reading note: Protective and damaging effects of stress mediatorsTAP Record · TAP-RDN-0003TAP reading note: The cumulative cost of additional wakefulness: dose-response effects on neurobehavioral functions and sleep physiology from chronic sleep restriction and total sleep deprivationTAP Record · TAP-RDN-0016TAP reading note: The perseverative cognition hypothesis: a review of worry, prolonged stress-related physiological activation, and healthTAP Record · TAP-RDN-0020TAP reading note: The Recovery Experience Questionnaire: development and validation of a measure for assessing recuperation and unwinding from workTAP Record · TAP-RDN-0032TAP reading note: The Reactive Scope Model — A new model integrating homeostasis, allostasis, and stressTAP Record · TAP-RDN-0024TAP reading note: Neurobehavioral dynamics following chronic sleep restriction: dose-response effects of one night for recoveryTAP Record · TAP-RDN-0004TAP reading note: Greater cardiovascular responses to laboratory mental stress are associated with poor subsequent cardiovascular risk status: a meta-analysis of prospective evidenceTAP Record · TAP-RDN-0013TAP reading note: Allostatic load biomarkers of chronic stress and impact on health and cognitionTAP Record · TAP-RDN-0005TAP reading note: Stress- and Allostasis-Induced Brain PlasticityTAP Record · TAP-RDN-0006TAP reading note: Allostasis: a model of predictive regulationTAP Record · TAP-RDN-0018TAP reading note: The LF/HF ratio does not accurately measure cardiac sympatho-vagal balanceTAP Record · TAP-RDN-0026TAP reading note: Effects of recovery sleep after one work week of mild sleep restriction on interleukin-6 and cortisol secretion and daytime sleepiness and performanceTAP Record · TAP-RDN-0012TAP reading note: Clarifying the roles of homeostasis and allostasis in physiological regulationTAP Record · TAP-RDN-0029TAP reading note: Resilience definitions, theory, and challenges: interdisciplinary perspectivesTAP Record · TAP-RDN-0007TAP reading note: Recovery from job stress: The stressor-detachment model as an integrative frameworkTAP Record · TAP-RDN-0017TAP reading note: Physiological concomitants of perseverative cognition: A systematic review and meta-analysisTAP Record · TAP-RDN-0008TAP reading note: Physical Resilience in Older Adults: Systematic Review and Development of an Emerging ConstructTAP Record · TAP-RDN-0019TAP reading note: Heart Rate Variability and Cardiac Vagal Tone in Psychophysiological Research - Recommendations for Experiment Planning, Data Analysis, and Data ReportingTAP Record · TAP-RDN-0009TAP reading note: A Meta-Analysis on Antecedents and Outcomes of Detachment from WorkTAP Record · TAP-RDN-0010TAP reading note: Recovery and Performance in Sport: Consensus StatementTAP Record · TAP-RDN-0025TAP reading note: Ad libitum Weekend Recovery Sleep Fails to Prevent Metabolic Dysregulation during a Repeating Pattern of Insufficient Sleep and Weekend Recovery SleepTAP Record · TAP-RDN-0027TAP reading note: Resilience in Clinical Care: Getting a Grip on the Recovery Potential of Older AdultsTAP Record · TAP-RDN-0028TAP reading note: Whitepaper: Defining and investigating cognitive reserve, brain reserve, and brain maintenanceTAP Record · TAP-RDN-0022TAP reading note: Leaving Work at Work: A Meta-Analysis on Employee Recovery From WorkTAP Record · TAP-RDN-0023TAP reading note: "Give me a break!" A systematic review and meta-analysis on the efficacy of micro-breaks for increasing well-being and performanceTAP Record · TAP-RDN-0011TAP reading note: Allostatic Load Measurement: A Systematic Review of Reviews, Database Inventory, and Considerations for Neighborhood ResearchTAP Record · TAP-RDN-0015TAP reading note: Allostatic Load and Mortality: A Systematic Review and Meta-AnalysisTAP Record · TAP-RDN-0021TAP reading note: Recovery from Work: Advancing the Field Toward the FutureTAP Record · TAP-RDN-0033TAP reading note: Conceptualizing a resilience research framework at The National Institutes of HealthTAP Record · TAP-RDN-0014TAP reading note: Towards a consensus definition of allostatic load: a multi-cohort, multi-system, multi-biomarker individual participant data (IPD) meta-analysisTAP Record · TAP-RDN-0031TAP reading note: Impact of baseline and longitudinal allostatic load changes on incident cardiovascular disease and all-cause mortality: A 7-year population-based cohort study in ChinaTAP Record · TAP-RDN-0034TAP reading note: Resilience phenotypes derived from an active inference account of allostasisTAP Record · TAP-RDN-0030TAP reading note: Building an ontology of resilience: Insights from the physical resilience literatureTAP Record · TAP-FIG-0001Human Adaptation MapTAP Record · TAP-FIG-0002Recovery trajectoriesTAP Record · TAP-STD-0001Citation & Reuse