Decreased respiratory-related postural perturbations at the cervical level under cognitive load
Type
Articles dans des revues avec comité de lectureAuthor
Date
2020Journal
European Journal of Applied PhysiologyAbstract
PURPOSE: In healthy humans, postural and respiratory dynamics are intimately linked and a breathing-related postural perturbation is evident in joint kinematics. A cognitive dual-task paradigm that is known to induce both postural and ventilatory disturbances can be used to modulate this multijoint posturo-ventilatory (PV) interaction, particularly in the cervical spine, which supports the head. The objective of this study was to assess this modulation. METHODS: With the use of optoelectronic sensors, the breathing profile, articular joint motions of the cervical spine, hip, knees and ankles, and centre of pressure (CoP) displacement were measured in 20 healthy subjects (37 years old [29; 49], 10 females) during natural breathing (NB), a cognitive dual task (COG), and eyes-closed and increased-tidal-volume conditions. The PV interaction in the CoP and joint motions were evaluated by calculating the respiratory emergence (REm). RESULTS: Only the COG condition induced a decrease in the cervical REm (NB: 17.2% [7.8; 37.2]; COG: 4.2% [1.8; 10.0] p = 0.0020) concurrent with no changes in the cervical motion. The CoP REm (NB: 6.2% [3.8; 10.3]; COG: 12.9% [5.8; 20.7] p = 0.0696) and breathing frequency (NB: 16.6 min-1 [13.3; 18.7]; COG: 18.6 min-1 [16.3; 19.4] p = 0.0731) tended to increase, while the CoP (p = 0.0072) and lower joint motion displacements (p < 0.05) increased. CONCLUSION: This study shows stable cervical spine motion during a cognitive dual task, as well as increased postural perturbations globally and in other joints. The concurrent reduction in the PV interaction at the cervical spine suggests that this "stabilization strategy" is centrally controlled and is achieved by a reduction in the breathing-related postural perturbations at this level. Whether this strategy is a goal for maintaining balance remains to be studied.
Files in this item
- Name:
- IBHGC_EJAP_2020_CLAVEL.pdf
- Size:
- 1.617Mb
- Format:
- Description:
- Article
- Embargoed until:
- 2020-09-17
Related items
Showing items related by title, author, creator and subject.
-
ATTALI, Valérie; CLAVEL, Louis; ROUCH, Philippe; RIVALS, Isabelle; RÉMY-NÉRIS, Ségolène; SKALLI, Wafa; SANDOZ, Baptiste; SIMILOWSKI, Thomas (Frontiers Media SA, 2019)The maintenance of upright balance in healthy humans requires the preservation of a horizontal gaze, best achieved through dynamical adjustments of spinal curvatures and a pelvic tilt that keeps the head-to-pelvis alignment ...
-
CLAVEL, Louis; JACQ, O.; NIERAT, Marie-Cécile; SIMILOWSKI, T.; ROUCH, Philippe; SANDOZ, Baptiste (Informa UK Limited, 2017)The objective of this study was to evaluate the postural perturbations due to the use of the spirometer, by comparing it to the Optoelectronic Plethysmography method, on postural control.
-
CLAVEL, Louis; REMY-NERIS, Ségolène; SKALLI, Wafa; ROUCH, Philippe; LESPERT, Yoann; SIMILOWSKI, Thomas; SANDOZ, Baptiste; ATTALI, Valérie (Frontiers Editorial, 2020)Obstructive sleep apnea syndrome (OSAS) is associated with postural dysfunction characterized by abnormal spinal curvature and disturbance of balance and walking, whose pathophysiology is poorly understood. We hypothesized ...
-
BERG, Britt-Isabelle; LAVILLE, Aurélien; COURVOISIER, Delphine S.; ROUCH, Philippe; SCHOUMAN, Thomas (PLOS, 2020)Methods We evaluated 48 biplanar radiographs from 12 patients (posteroanterior/lateral), originally taken for a scoliosis examination with a biplanar low-dose X-ray device. For this study, the images were further evaluated ...
-
SCHOUMAN, Thomas; SCHMITT, Mary; ADAM, Clayton; DUBOIS, Guillaume; ROUCH, Philippe (Elsevier, 2016)The aim of this work was to assess the influence of reduction of the apparent mechanical properties of fully load-bearing porous titanium implants used in mandibular bone defects. Segmental 18mm long bone defects were ...