2013
DOI: 10.1016/j.jbiomech.2012.12.022
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Effects of seat–thigh contact on kinematics performance in sit-to-stand and trunk flexion tasks

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Cited by 16 publications
(18 citation statements)
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“…In the paradigm of STS (Diakhaté et al, 2013) as in gait initiation (Brenière and Do, 1991), which include a shift of the center of mass (CM), APAs also contribute to the generation of the propulsive forces. It is assumed that APAs must be developed for the movement to be performed efficiently (Bouisset and Zattara, 1981).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…In the paradigm of STS (Diakhaté et al, 2013) as in gait initiation (Brenière and Do, 1991), which include a shift of the center of mass (CM), APAs also contribute to the generation of the propulsive forces. It is assumed that APAs must be developed for the movement to be performed efficiently (Bouisset and Zattara, 1981).…”
Section: Discussionmentioning
confidence: 99%
“…APAs allow for a better performance through a compensation of the disturbing forces associated with the FM (Bouisset and Zattara, 1981) or the generation of propulsive forces (Brenière and Do, 1991), and require postural chain mobility (Bouisset and Le Bozec, 1999). Lower articular free play of the lumbar pelvic area was associated with a reduction of the motor performance in several paradigms such as the pointing task (Lino and Bouisset, 1994), the pushing ramp effort (Le Bozec and Bouisset, 2004) or the STS task (Diakhaté et al, 2013). …”
Section: Introductionmentioning
confidence: 99%
“…Similarly, in low-back pain, an increase in postural sway is thought to be due to stiffening of the spine induced by muscle tension, which reduces dynamic mobility [2]. Likewise, a faster sit-to-stand movement may be accomplished through an increase in hip joint mobility by changing the sitting posture from full-thigh contact to sitting on the edge of the chair [3].…”
Section: Introductionmentioning
confidence: 99%
“…According to the PKC concept, any factor that may enhance (or conversely, alter) this capacity would favor (or hinder) the motor performance and postural stability. This concept has been substantiated by many recent experimental studies which manipulated spine mobility using various means, e.g., by the application of splints at different levels of the spine (Alamini-Rodrigues and Hamaoui, 2016), by experimentally-induced trunk muscular tension (Hamaoui et al, 2004, 2011; Hamaoui and Le Bozec, 2014), or by changing the contact surface between the thighs and seat in the sitting posture (Lino et al, 1992; Teyssèdre et al, 2000; Le Bozec and Bouisset, 2004; Diakhaté et al, 2013). It has been shown that constraining spine mobility may disturb postural equilibrium when maintaining erect posture as revealed by measuring the COP.…”
Section: Discussionmentioning
confidence: 99%
“…This PKC concept was substantiated by experimental studies which investigated the relationship between postural chain mobility, APA and motor performance during various motor tasks such as isometric ramp push (Le Bozec and Bouisset, 2004), pointing (Lino et al, 1992; Teyssèdre et al, 2000), and more recently, trunk flexion (Diakhaté et al, 2013) or sit-to-stand (Diakhaté et al, 2013; Alamini-Rodrigues and Hamaoui, 2016; Hamaoui and Alamini-Rodrigues, 2017a,b). In these studies, postural chain mobility was varied by changing the seat-thigh contact (Teyssèdre et al, 2000; Le Bozec and Bouisset, 2004; Diakhaté et al, 2013), by increasing the muscular tension along the torso (Hamaoui et al, 2004, 2011; Hamaoui and Le Bozec, 2014) or by restraining the spine mobility at different levels by means of splints (Alamini-Rodrigues and Hamaoui, 2016; Hamaoui and Alamini-Rodrigues, 2017a,b). These studies showed that the restriction of the postural chain mobility, and especially the spine mobility, has a negative influence on APA and motor performance.…”
Section: Introductionmentioning
confidence: 93%