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opencc-zeroFeb 2015View details →

Dataset for article: Perakakis P., Idrissi S., Vila J., Ivanov Ch.P. (2012). Dynamical patterns of human postural responses to emotional stimuli. Psychophysiology, 49 (9), pp. 1225–1229

Dataset for article: Perakakis P., Idrissi S., Vila J., Ivanov Ch.P. (2012). Dynamical patterns of human postural responses to emotional stimuli. Psychophysiology, 49 (9), pp. 1225–1229

opencc-by-4.0Nov 2024View details →

MultiPosture: A Dataset of body joints keypoints extracted using MediaPipe for multi-task sitting posture recognition with upper and lower body labels

This dataset contains skeletal pose data extracted from video recordings of 13 participants performing various sitting postures in home environments. The data was processed using MediaPipe Pose Heavy model and includes 4,800 frames of 3D skeletal coordinates (x, y, z) for 11 key body joints, with each frame manually labeled for both upper and lower body posture classifications. The data is stored in CSV format with normalized coordinates relative to hip center, containing 33 input dimensions (11 joints × 3 coordinates) representing key skeletal points. To protect participant privacy, only the processed skeletal coordinates are included, with no raw video or image data due to privacy constraints. Upper Body Labels: <ul> <li>TUP: Upright trunk position</li> <li>TLB: Trunk leaning backward</li> <li>TLF: Trunk leaning forward</li> <li>TLR: Trunk leaning right</li> <li>TLL: Trunk leaning left</li> </ul> Lower Body Labels: <ul> <li>LAP: Legs apart</li> <li>LWA: Legs wide apart</li> <li>LCS: Legs closed</li> <li>LCR: Legs crossed right over left</li> <li>LCL: Legs crossed left over right</li> <li>LLR: Legs lateral right</li> <li>LLL: Legs lateral left</li> </ul> Each frame in the dataset has been manually labeled and validated by experts, making it particularly suitable for developing and evaluating machine learning models for ergonomic monitoring systems, ambient assisted living applications, and general posture recognition research. This dataset was collected as part of the study: D. Carneros-Prado, L. Cabañero-Gómez, E. Johnson, I. González, J. Fontecha and R. Hervás, "A Comparison Between Multilayer Perceptrons and Kolmogorov-Arnold Networks for Multi-Task Classification in Sitting Posture Recognition," in IEEE Access, vol. 12, pp. 180198-180209, 2024, doi: 10.1109/ACCESS.2024.3510034. <a href="https://ieeexplore.ieee.org/abstract/document/10772228" target="_blank" rel="noopener">link</a>

opencc-by-4.0Jun 2024View details →

Cervical Proprioception, Postural Control, and Pain

The dataset comprises demographic and clinical characteristics of two groups: 82 Rheumatoid Arthritis (RA) patients and 82 asymptomatic individuals. The RA patients have a mean age of 55.25 years (SD = 10.02), while the asymptomatic individuals have a mean age of 54.18 years (SD = 10.15), with both groups having an age range of 40-70 years. Gender distribution is identical, with 20% males and 80% females in each group. Marital status differs slightly; 36% of RA patients are single, and 66% are married, compared to 39% and 61% in the control group. Educational attainment shows 27% of RA patients completed high school, 49% have college degrees, and 24% hold graduate degrees, compared to 30%, 43%, and 27% in the control group. Employment status reveals 61% of RA patients are employed, 24% are unemployed, and 15% fall into other categories, similar to 63%, 22%, and 15% in the control group.

Fig. 4 in Head and neck posture in sauropod dinosaurs inferred from extant animals

Fig. 4. Range of possible habitual head angles in the basal sauropodomorph Massospondylus (A) and the sauropods: Camarasaurus (B) and Diplodocus (C). Heads shown with HSSC oriented horizontally, and tilted 30° upwards and 20° downwards, the range of habitual orientations found for birds by Duijm (1951). Black bars indicate the angles of the anterior necks in neutral position relative to heads with HSCCs held horizontal. Massospondylus BP/1/4376 after Sues et al. (2004: fig. 1A), Camarasaurus CM 11338 after Gilmore (1925: pl. 16), Diplodocus USNM 2672 after Hatcher (1901: pl. 2).

Fig. 1. Recent Cape hare Lepus capensis Linnaeus, 1758 RAM R2 in Head and neck posture in sauropod dinosaurs inferred from extant animals

Fig. 1. Recent Cape hare Lepus capensis Linnaeus, 1758 RAM R2 in right lateral view, illustrating maximally extended pose (A) and ONP (B): skull, cervical vertebrae 1–7 and dorsal vertebrae 1–2. Note the very weak dorsal deflection of the base of the neck in ONP, contrasting with the much stronger deflection illustrated in a live rabbit by Vidal et al. (1986: fig. 4).

Fig. 3 in Head and neck posture in sauropod dinosaurs inferred from extant animals

Fig. 3. Phylogeny indicating high−level relationships between tetrapod groups, habitual neck posture in extant groups, and inferred posture in sauropods. Cervical vertebrae shaded dark grey. Lissamphibia: Ambystoma tigrinum, after Simons et al. (2000: fig. 4); Mammalia: domestic cat Felis catus Linnaeus, 1758, after Vidal et al. (1986: fig. 3B); Testudines: box turtle Terrapene carolina (Linnaeus, 1758), after Landberg et al. (2003: fig. 8); Squamata: Savannah monitor Varanus exanthematicus (Bosc, 1792), after Owerkowicz et al. (1999: fig. 2A); Crocodylia: alligator Alligator mississippiensis (Daudin 1801), after unpublished photograph; Aves: chicken Gallus gallus (Linnaeus, 1758), after Vidal et al. (1986: fig. 7); Sauropoda: Diplodocus carnegii, modelled after vertebrae in Hatcher (1901: fig. 4, pl. 3).

Fig. 5 in Head and neck posture in sauropod dinosaurs inferred from extant animals

Fig. 5. Sauropod Brachiosaurus brancai reconstructions with low and high torso positions. Neck in ONP, in a drinking posture (A), and in a browsing posture (B) attained by deflecting the neck dorsally by the same amount as it is deflected ventrally to reach the ground. Torso, appendicular skeleton and ONP neck from Stevens and Parrish (2005b: fig. 6.8). Cervical joints deflected by 8° from ONP. See text for full details.

Fig. 2. Recent chicken Gallus domesticus Linnaeus, 1758 RAM R1 in Head and neck posture in sauropod dinosaurs inferred from extant animals

Fig. 2. Recent chicken Gallus domesticus Linnaeus, 1758 RAM R1 in right lateral view, illustrating maximally extended pose (A) and ONP (B): last four cervical and first four dorsal vertebrae. Note the strong ventral deflection of the base of the neck in ONP, contrasting with the very strong dorsal deflection illustrated in a live chicken by Vidal et al. (1986: fig. 7).

Fig. 1 in Limb posture in early mammals: Sprawling or parasagittal

Fig. 1. Comparison of os calcaris in a Recent monotreme and a Cretaceous multituberculate. A. The left tarsus of monotreme Ornithorhynchus anatinus (Shaw, 1799), ZMO 11793, an adult male, showing the well−preserved venomous cornu calcaris facing medially. B. Proximal part of the left tarsus of Catopsbaatar catopsaloides (Kielan−Jaworowska, 1974), showing os calcaris in proximal view. PM 120/107, Late Cretaceous red beds of Hermiin Tsav, (?late Campanian), Hermiin Tsav I, Gobi Desert, Mongolia. Note the roughly triangular shape of os calcaris in C. catopsaloides and its undulating surface, indicating the presence of cornu calcaris upon it.

Fig. 5 in Limb posture in early mammals: Sprawling or parasagittal

Fig. 5. Diagrammatical drawings of two skeletons of Mesozoic mammals from lacustrine sediments, re−drawn and simplified from the published drawings. Limb bones are shaded in grey. The arrow points to os calcaris. Both skeletons show sprawling posture. They are preserved dorso−ventrally compressed and exposed in ventral views, showing abducted limbs (as those in Jehol Biota, illustrated in Fig. 4A–F). A. Castorocauda lutrasimilis Ji Q., Luo, Yuan, and Tabrum, 2006, a Middle Jurassic docodontan from north−west China, in ventral view, based on Ji Q. et al. (2006: fig. 1b). B. Henkelotherium guimarotae Krebs, 1991, a "eupantotherian" from the Kimmeridgian of Portugal, in ventral view, based on Henkel and Krebs (1977). Scale bars 10 mm.

Fig. 3. A in Limb posture in early mammals: Sprawling or parasagittal

Fig. 3. A comparison of the state of preservation of the skeletons of two Early Cretaceous mammals from the Yixian Formation of Jehol Biota in China (A, B), and an Eocene eutherian mammal from Messel in Germany (C), all preserved in lacustrine sediments. A. "Symmetrodontan" Zhangheotherium quinquecuspidens Hu, Wang Y.−Q., Luo, and Li Ch.−K., 1997 (cast of IVPP V7466). B. Early eutherian Eomaia scansoria Ji Q., Luo, Yuan, Wible, Hang, and Georgi, 2002. (CAGS 01−IG−1). C. Amphilemurine insectivore Macrocranion tupaiodon Weitzel, 1949 (PMO 207.791). Eomaia and Macrocranion are eutherians with parasagittal limbs and are preserved lying on their sides, Zhangheotherium belongs to "symmetrodontans" with sprawling limbs and has been preserved in a position characteristic of animals with sprawling posture, lying on its back. Scale bars 10 mm.

Fig. 2 in Limb posture in early mammals: Sprawling or parasagittal

Fig. 2. Reconstruction of the posture of the Late Cretaceous multituberculate Catopsbaatar catopsaloides (Kielan−Jaworowska, 1974) from the Gobi Desert, Mongolia, as a plantigrade mammal with sprawling limbs. Skull length is about 60 mm. The size of the spur has been reconstructed based on the length of the male spur in Ornithorhynchus in comparison to the length of the foot. The animal is reconstructed in aggressive position, ready for attack, with mobile spurs projecting medially. (Artwork by Bogusław Waksmundzki.)

opencc-by-4.0May 2021View details →

Multi-segment phase coupling to oscillatory visual drive, Gait & Posture (2021): Data

Data set accompanying the publication: Engel, D., Schwenk, J., Schütz, A., Morris, A. P., & Bremmer, F. (2021). Multi-segment phase coupling to oscillatory visual drive. Gait & posture, 86, 132–138. <a href="https://doi.org/10.1016/j.gaitpost.2021.03.010">https://doi.org/10.1016/j.gaitpost.2021.03.010</a>

Fig. 6. Isotemnid foot. AMNH 28690. A in Morphological Diversity in the Postcranial Skeleton of Casamayoran (?Middle to Late Eocene) Notoungulata and Foot Posture in Notoungulates

Fig. 6. Isotemnid foot. AMNH 28690. A, Dorsal view of pes; B, astragalus in plantar view (left) and lateral view (right); C, calcaneum in dorsal view (left) and lateral view (right); D, line drawing illustrating maximum dorsiflexion of the upper ankle joint (left) and maximum plantarflexion (right); E, posterior view of upper ankle joint at maximum plantarflexion, showing the exposed superior astragalar foramen and groove for the tendon of the flexor hallucis longus. Abbreviations: cu, cuboid; dp, dorsal; ect f, ectal facet; ent, entocuneiform; fib, fibula; fib f, fibular facet; flx g, groove for the tendon of the flexor hallucis longus; med p, medial process; nav, navicular; nav f, navicular facet; plnt ast f, plantar astragalar foramen; pp, peroneal process; ps, peroneal shelf; sup ast f, superior astragalar foramen; tib, tibia. (The upper scale bar applies to A, B, and C, the lower bar to D and E.)

Fig. 3. Isotemnid antebrachia, ulnae A, B in Morphological Diversity in the Postcranial Skeleton of Casamayoran (?Middle to Late Eocene) Notoungulata and Foot Posture in Notoungulates

Fig. 3. Isotemnid antebrachia, ulnae A, B, and C; radii D, E, and F. A and D are of Anisotemnus distentus, AMNH 28906; B and E are of Thomashuxleya externa, AMNH 28653; C and F are of Pleurostylodon similis, AMNH 28904. All are shown as being from the right side, but the elements of Pleurostylodon (C and F) and the radius of Anisotemnus (D) are from the left, but digitally reversed to appear as right. Abbreviations are: ap, anconeal process; cp, coronoid process; and ce, capitular eminence. The olecranon process of Pleurostylodon (C) is reconstructed.

Fig. 2 in Morphological Diversity in the Postcranial Skeleton of Casamayoran (?Middle to Late Eocene) Notoungulata and Foot Posture in Notoungulates

Fig. 2. Isotemnid humeri from Cañadón Vaca, Casamayoran SALMA (Vacan ''subage''). Anterior (above) and distal (below) view of humeri of A, Ansiotemnus distentus, AMNH 28906; B, Thomashuxleya extena, AMNH 28653; and C, Plexotemnus similis, AMNH 28904. Scale bar applies to all. Panels A and B show right humeri and panel C shows a left humerus (but digitally reversed for ease of comparison). Abbreviations are: cap, capitulum; Δc, deltoid crest; ent f, entepicondylar foramen gt, greater tubercle; lt, lesser tubercle; m flg, medial flange; pc, pectoral crest; tt, teres tubercle.

Fig. 7 in Morphological Diversity in the Postcranial Skeleton of Casamayoran (?Middle to Late Eocene) Notoungulata and Foot Posture in Notoungulates

Fig. 7. Changes in foot structure in South American ungulates over time. The ankle index indicates the percentage of the ungulate taxa in a fauna that lacks an astragalar canal (i.e., superior astragalar foramen absent). This absence, and associated increase in the tibioastragalar articulation, is used as a proxy for the proportion of the ungulate fauna having a subcursorial to cursorial foot. The percentage having the modified form is compared to the mean ungulate hypsodonty, and changes in the proxy of global temperature (Ο18O). Time scale, mean hypsodonty index, and temperature proxy are modified from Flynn et al. (2003).

Fig. 1 in Morphological Diversity in the Postcranial Skeleton of Casamayoran (?Middle to Late Eocene) Notoungulata and Foot Posture in Notoungulates

Fig. 1. Scapula of Anisotemnus distentus, AMNH 28906. Left, lateral view; right, distal view. Abbreviations: acr, acromion; acr ang, acromial angle; cor p, coracoid process; gln, glenoid fossa; inf spn f, infraspinous fossa; sup spn f, supraspinous fossa.

Fig. 5 in Morphological Diversity in the Postcranial Skeleton of Casamayoran (?Middle to Late Eocene) Notoungulata and Foot Posture in Notoungulates

Fig. 5. Comparative anatomy of Vacan ''subage'' (Casamayoran SALMA) isotemnids with the Mustersan taxon Periphragnis harmeri. A, Manus of Anisotemnus distentus, AMNH 28906; B, manus of Periphragnis harmeri, AMNH 14952 (cast of Roth MLP specimen); C, left astragalus (dorsal view) of cf. Thomashuxleya externa, AMNH 142463; D, left astragalus, calcaneum, and navicular (dorsal view) of Periphragnis harmeri, AMNH 14952 (cast). Abbreviations of carpal elements: cun, cuneiform; lun, lunar; mg, magnum; pis, pisiform; scp, scaphoid; td, trapezoid; tm, trapezium; unc, unciform.