Pith Number

pith:7RGT5SW5

pith:2026:7RGT5SW5DPO4H52XSEQKKVSKVP

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From Organization to Viability: A Multi-Level Analysis of Gait Dynamics Under Occlusal Constraint

Elsa Raynal, Jacques Margerit, Jacques Raynal, Pierre Slangen

Comparable gait performance across occlusal conditions masks distinct longitudinal changes in latent-space organization.

arxiv:2605.13893 v1 · 2026-05-12 · q-bio.OT · q-bio.NC

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Record completeness

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Claims

C1strongest claim

Although observable performance remained globally comparable across conditions, PCA-based latent-space analysis revealed differentiated longitudinal centroid displacements. OC3 exhibited the smallest displacement, ONL an intermediate displacement, and OC2.5 the largest displacement. This hierarchy supports the relevance of a Level 4 framework centered on viability.

C2weakest assumption

That PCA centroid displacement over 11 weeks is a valid proxy for 'viability' (capacity to maintain organization) rather than an artifact of the single-case design, the intervening sensorimotor training, or the specific choice of three occlusion levels; the paper itself flags the findings as within-subject, exploratory, and non-causal.

C3one line summary

In one Parkinson patient, higher occlusion produced the smallest longitudinal shift in PCA gait latent space over 11 weeks while immediate performance stayed comparable, supporting a viability level focused on sustained organization.

References

28 extracted · 28 resolved · 1 Pith anchors

[1] Observable Performance Does Not Fully Reflect System Organization: A Multi-Level Analysis of Gait Dynamics Under Occlusal Constraint 2026 · doi:10.48550/arxiv.2605.00778

[2] Human balance and posture control during standing and walking 1995 · doi:10.1016/0966-6362(96)82849-9

[3] Postural orientation and equilibrium 2006 · doi:10.1093/ageing/afl077

[4] Free-living gait characteristics in ageing and Parkinson’s disease: impact of environment and ambulatory bout length 2016 · doi:10.1186/s12984-016-0154-5

[5] Gait dynamics in Parkinson’s disease: common and distinct behavior among stride length, gait variability, and fractal-like scaling 2009 · doi:10.1063/1.3147408

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Cited by

1 paper in Pith

From Observed Viability to Internal Predictive Approximation: A Single-Subject Latent-Space Analysis of Gait Dynamics Under Occlusal Constraint

Receipt and verification

First computed	2026-05-17T23:39:19.031353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc4d3ecadd1bddc3f7579120a5564aabc42ddfca2d189a253b2d7c410c74cd26

Aliases

arxiv: 2605.13893 · arxiv_version: 2605.13893v1 · doi: 10.48550/arxiv.2605.13893 · pith_short_12: 7RGT5SW5DPO4 · pith_short_16: 7RGT5SW5DPO4H52X · pith_short_8: 7RGT5SW5

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7RGT5SW5DPO4H52XSEQKKVSKVP \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: fc4d3ecadd1bddc3f7579120a5564aabc42ddfca2d189a253b2d7c410c74cd26

Canonical record JSON

{
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    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.OT",
    "submitted_at": "2026-05-12T10:15:18Z",
    "title_canon_sha256": "67a6e5853ecf4c8338fa0a94606fd54dbe9e1ef383c68b836de1bee1623e75ca"
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