Body and state — posture, breath, flow

Overview

The layer of the body and "state": the mechanisms by which posture, breath, and absorption shift the internal state (affect, arousal, attention, the sense of power / confidence). This is a bridge between two parts of the project and the peer-reviewed mechanism evidence: the body track (rune-yoga/stadhagaldr — Marby/Kummer/Spiesberger; taiji/qigong) and the "state engine" frame (intention practice as a regulator of state/attention). Every claim is a documented internal / bodily-affective / attentional effect in the practitioner, and not proof that posture, breath, or "flow" exert an external magical influence on events. The mechanisms stay internal.

This file extends attention, placebo, ritual and bias, prediction, self-efficacy. Those unpacked cognition/expectation mechanisms (selective attention, placebo, the ideomotor effect, ritual ↓ anxiety, confirmation bias, predictive processing, self-efficacy).

Three topics, one genuinely open (CC BY, verbatim confirmed) peer-reviewed source each:

1. Embodied cognition: posture ↔ state — Osypiuk, Thompson & Wayne (2018), Frontiers in Human Neuroscience — a perspective/framework review (taiji/qigong as the example). It includes the honest replication history of power posing.
2. Controlled / slow breathing → autonomic regulation — Zaccaro et al. (2018), Frontiers in Human Neuroscience — a PRISMA systematic review.
3. Flow — Peifer et al. (2022), Frontiers in Psychology — a scoping review.

The strength of evidence is given per source (design, n / number of studies, replication, stated limitations — only what the article itself says). All three are reviews, not new experiments: good as explanatory scaffolds, weak as single-study proof. Transfer to "manifestation" / life events stays [unverified].

1. Embodied cognition: posture ↔ state (+ the power-posing replication crisis)

Citation: Osypiuk, K., Thompson, E., & Wayne, P. M. (2018). Can Tai Chi and Qigong postures shape our mood? Toward an embodied cognition framework for mind-body research. Frontiers in Human Neuroscience, 12, 174.

• mechanism-evidence The embodiment frame: the authors argue that body posture can be a "key therapeutic element" of taiji/qigong (TCQ), and that mood states are "fundamentally rooted in bodily experience" — i.e. holding an aligned, open posture supposedly not only expresses affect but feeds back onto it. This is the formal mechanism behind "stand/hold the posture of a rune stave → the state shifts."
• mechanism-evidence Power posing, told honestly (their own review): "although adopting and holding power poses initially showed, in some cases, an influence on endocrine markers… the influence of power posing on testosterone and cortisol was not confirmed in replication studies," whereas "effects of an increase in self-reported feelings of power were demonstrated more consistently" → selective reproducibility: the sense of power survived, the hormones did not. (They reference Carney/Cuddy.)
• mechanism-evidence An honest gap specifically for TCQ: the authors state that "to our knowledge, no study to date has correlated the characteristics of TCQ postures or movements with affect or psychological wellbeing." → The posture→mood link for the taiji postures themselves is a proposed hypothesis, not yet measured; the broader posture-affect data are borrowed by analogy.

⚠️ An honesty block — the power-posing replication crisis (a load-bearing caveat). Do not present power posing as an established fact. The chain:

• Carney, D. R., Cuddy, A. J. C., & Yap, A. J. (2010). Power posing: brief nonverbal displays affect neuroendocrine levels and risk tolerance. Psychological Science, 21(10), 1363–1368. DOI 10.1177/0956797610383437. Claimed: ↑testosterone, ↓cortisol, ↑risk tolerance, ↑sense of power (n ≈ 42).
• Ranehill, E., Dreber, A., Johannesson, M., Leiberg, S., Sul, S., & Weber, R. A. (2015). Assessing the robustness of power posing: no effect on hormones and risk tolerance in a large sample of men and women. Psychological Science, 26(5). Failed to replicate the hormonal and risk effects in a much larger sample (n ≈ 200); only the sense of power shifted.
• Simmons, J. P., & Simonsohn, U. (2017). Power posing: p-curving the evidence. Psychological Science, 28(5), 687–693. A p-curve analysis concluding that the original literature is devoid of evidential value for postural effects.
• What survived (the most honest summary): a Bayesian meta-analysis of preregistered replications, CRSP — Gronau, Q. F., et al. (2017), A Bayesian model-averaged meta-analysis of the power pose effect… the case of felt power, Comprehensive Results in Social Psychology, 2(1), 123–138, DOI 10.1080/23743603.2017.1326760 — found "very strong evidence for an effect of power posing on felt power," but "only moderate" when restricted to participants unfamiliar with the effect (→ a possible demand characteristic).
• Even Dana Carney herself publicly stated that she no longer believes the original effect is real (an author statement, "My position on Power Poses").

Strength of evidence: Osypiuk 2018 = a perspective/framework review (not an experiment, no effect sizes) — strong as an explanatory scaffold for embodiment and notably self-critical about power posing and the lack of data specifically for TCQ. The power-posing literature it summarizes is a textbook replication-crisis case: the sense of power is the surviving, replicated, but possibly demand-driven part; the hormones (cortisol/testosterone) and risk behavior did NOT replicate. Bottom line for the knowledge base: posture can nudge the subjective state (the sense of power, mood) — modestly and partly sensitive to demand — while the physiological story of a "hormone superpower" is discredited and must be tagged as such. [unverified] — any claim that a rune-yoga / stadha posture changes hormones or external outcomes.

2. Controlled / slow breathing → autonomic regulation

Citation: Zaccaro, A., Piarulli, A., Laurino, M., Garbella, E., Menicucci, D., Neri, B., & Gemignani, A. (2018). How breath-control can change your life: a systematic review on psycho-physiological correlates of slow breathing. Frontiers in Human Neuroscience, 12, 353.

• mechanism-evidence An autonomic shift toward the parasympathetic. Slow breathing (defined as <10 breaths/min, with ~6 br/min a common target near the "resonance frequency" ~0.1 Hz) "promotes autonomic changes increasing heart-rate variability (HRV) and respiratory sinus arrhythmia (RSA)," i.e. a vagally mediated "parasympathetic dominance." → A real physiological basis for "breath/posture work calms me down."
• mechanism-evidence CNS and affective correlates. EEG shifts toward increased alpha and decreased theta; among the reported psychological outcomes are "reduced symptoms of arousal, anxiety, depression, anger, and confusion" and "increased comfort, relaxation, pleasantness, vigor, and alertness" (note: ↓anxiety and ↑alertness — calm-but-attentive, not sedation).
• mechanism-evidence A link to attention/interoception. The autonomic effect is described via vagal afferents carrying interoceptive information to the CNS, consistent with slow breathing sharpening a calm, inward-turned attentive state — the bodily basis of what the practice treats as "centering / charging."

Strength of evidence: The most rigorously designed item — a PRISMA systematic review, but with stated, serious limitations the authors note themselves: only 15 studies met the criteria (of 2461 abstracts); the heterogeneity of techniques and samples precluded a meta-analysis, and "the results of different studies lead to conflicting conclusions"; mostly within-subject designs rather than rigorous RCTs, with "an absence of any blinding"; and, critically, "no study explicitly assessed correlations between physiological changes and psychological/behavioral outcomes" (one exception). The autonomic (HRV/RSA) effect of slow breathing is well supported and mechanistically clear. The direct causal chain breath → measured change in mood/attention, however, is plausible but under-tested by this body of work. [unverified] — the exact dose-response and transfer to the specific rune/taiji breathing protocol.

3. Flow

Citation: Peifer, C., Wolters, G., Harmat, L., Heutte, J., Tan, J., Freire, T., Tavares, D., Fonte, C., Andersen, F. O., van den Hout, J., Šimleša, M., Pola, L., Ceja, L., & Triberti, S. (2022). A scoping review of flow research. Frontiers in Psychology, 13, 815665.

• mechanism-evidence What flow is (neutrally, after Csíkszentmihályi via the review): "a pleasurable state of deep involvement and absorption that people report when facing a challenging activity and perceiving their abilities as sufficient to cope with it." The classic nine characteristics: a balance of challenge and skill, the merging of action and awareness, clear goals, unambiguous feedback, concentration on the task, a sense of control, reduced self-consciousness, an altered perception of time, the autotelic experience.
• mechanism-evidence Conditions / antecedents. The review confirms the challenge–skill balance as "the central antecedent of flow," alongside clear goals and unambiguous feedback; flow arises when "both challenges and skills are high and balanced." Recent work compresses the construct to three meta-components: absorption, the perceived balance of demands and skill, enjoyment. → A specific attentional-affective state with specifiable entry conditions (relevant to how "absorbed ritual practice / a taiji form" generates absorption).
• mechanism-evidence An honest causal caveat (from the review itself). The authors state that "more experimental and longitudinal studies are needed to better understand the causal structure of flow, its antecedents and consequences." → The conditions and correlates of flow are well mapped; its causal mechanism is not established.

Strength of evidence: A scoping review (the Arksey & O'Malley method) of 252 empirical studies (2000–2016) — broad and authoritative as a map of the field, but by its nature it summarizes rather than tests, and explicitly notes that the causal structure is under-determined. Flow is a robust, well-operationalized phenomenological state with reliable antecedents (challenge–skill balance); it is not proof of any external/magical effect — it's an internal state of attention-absorption. [unverified] — any link between "entering flow during practice" and a change in external life events; flow here is a state, full stop.

Addition to the practice→mechanism table

All the rows below are internal (bodily / autonomic / attentional / affective) mechanisms; none is evidence of external causation. This is the body / state-engine block — a bridge to rune-yoga/stadhagaldr, taiji/qigong, and intention-practice-as-a-state-regulator.

[unverified] — any arrows of "→ a change in external physical reality." All the rows are about the bodily-affective/attentional within the practitioner.

Links

• attention, placebo, ritual / bias, prediction, self-efficacy — cognitive-expectancy mechanisms (attention, placebo, the ideomotor effect, ritual, confirmation bias, predictive processing, self-efficacy). This file is the body-state layer.