David Garrido-Jaén's research while affiliated with Instituto de Biomecánica de Valencia and other places

... The quadriceps thus have deficiencies in strength and endurance that will be detrimental to the patellofemoral joint during the sporting effort. Similarly, the subject has difficulty maintaining a concentric contraction of the quadriceps with crepituses present during the eccentric contraction of the quadriceps [14,15]. ...

... Other methodologies proposed in the literature to detect malingered WAD are differential spinal blocks implementation, thermographic amytal evaluation, pentothal administration, isometric strength testing [26], posturography technique [27], and mechanical testing [22]. In particular, in the mechanical approach, the kinematic parameters of cervical and neck mobility are used as cues to detect whiplash malingering [28,29]. The rational is that the evaluation of movements performed multiple times and/or under different circumstances helps reveal inconsistencies between repeated performances or abnormal and improbable patterns of impairment. ...

... ABM increases the stability of the vertebrae against sudden perturbations and reduces the movement of the lumbar spine (12). Decreased or delayed multifidus and transversus abdominis (TrA) activity, transition of the TrA from tonic to phasic activity, and increased activity in the more superficial erector spinae muscles are behaviors unique to people with LBP (12,13). The AHM is commonly used to increase spinal stability (14). ...

... According to the results obtained, the age in the sample of women studied does not seem to influence the appearance of alterations in balance. This differs from other studies where balance disturbances due to visual, auditory and somatosensory alterations are directly related to age [6,24,25]. However, these studies were carried out in women with an average age greater than those in our sample. ...

... Svendsen et al. (2013) [39] reported no significant differences between LBP and healthy people. Additionally, Peydro et al. (2011) [40] and Sanchez-Zuriaga et al. (2011) [41] mentioned a decreased lumbar range of motion and a lower flexion peak. However, when the trunk's mobility is examined globally, the results are conflicting [9]. ...

... Given the challenges in identify a pathoanatomical source of pain in people with WAD, much attention has focused on characterising their physical and psychological impairments (Carroll et al., 2008). Several disturbances in physical function have been identified in people with acute and chronic WAD including decreased maximum angular velocity, range and smoothness of active neck movement (Alalawi et al., 2022;Baydal-Bertomeu et al., 2011) as well as reduced strength and endurance of neck muscles (Pearson et al., 2009;Jull, 2011). Additionally, an impairment in local mechanical hyperalgesia at the cervical spine and at remote sites, increased sensitivity on upper limb neurodynamic testing (ULNT) and a greater prevalence of trigger points in cervical muscles has been observed (Fernández-Pérez et al., 2012). ...