Individuals with patellofemoral pain (PFP) use different motor strategies during unipodal support in stair climbing activities, which may be assessed by vertical ground reaction force parameters. Thus, the aims of this study were to investigate possible differences in first peak, valley, second peak, and loading rate between recreational female athletes with PFP and pain-free athletes during stair climbing in order to determine the association and prediction capability between these parameters, pain level, and functional status in females with PFP. Thirty-one recreational female athletes with PFP and 31 pain-free recreational female athletes were evaluated with three-dimensional kinetics while performing stair climbing to obtain vertical ground reaction force parameters. A visual analog scale was used to evaluate the usual knee pain. The anterior knee pain scale was used to evaluate knee functional score. First peak and loading rate were associated with pain (r = .46, P = .008; r = .56, P = .001, respectively) and functional limitation (r = .31, P = .049; r = −.36, P = .032, respectively). Forced entry regression revealed the first peak was a significant predictor of pain (36.5%) and functional limitation (28.7%). Our findings suggest that rehabilitation strategies aimed at correcting altered vertical ground reaction force may improve usual knee pain level and self-reported knee function in females with PFP.
Danilo de Oliveira Silva, Ronaldo Briani, Marcella Pazzinatto, Deisi Ferrari, Fernando Aragão and Fábio de Azevedo
Rangasamy Suresh Babu, P. Anand, Mathew Jeraud, P. Periasamy and A. Namasivayam
Experimental studies concerning the analysis of locomotor behavior in spinal cord injury research are widely performed in rodent models. The purpose of this study was to quantitatively evaluate the degree of functional recovery in reflex components and bipedal locomotor behavior of bonnet macaques (Macaca radiata) after spinal contusive injury. Six monkeys were tested for various reflex components (grasping, righting, hopping, extension withdrawal) and were trained preoperatively to walk in bipedal fashion on the simple and complex locomotor runways (narrow beam, grid, inclined plane, treadmill) of this investigation. The overall performance of the animals’ motor behavior and the functional status of limb movements during bipedal locomotion were graded by the Combined Behavioral Score (CBS) system. Using the simple Allen weight-drop technique, a contusive injury was produced by dropping a 13-g weight from a height of 30 cm to the exposed spinal cord at the T12-L1 vertebral level of the trained monkeys. All the monkeys showed significant impairments in every reflex activity and in walking behavior during the early part of the postoperative period. In subsequent periods, the animals displayed mild alterations in certain reflex responses, such as grasping, extension withdrawal, and placing reflexes, which persisted through a 1-year follow-up. The contused animals traversed locomotor runways—narrow beam, incline plane, and grid runways—with more steps and few errors, as evaluated with the CBS system. Eventually, the behavioral performance of all spinal-contused monkeys recovered to near-preoperative level by the fifth postoperative month. The findings of this study reveal the recovery time course of various reflex components and bipedal locomotor behavior of spinal-contused macaques on runways for a postoperative period of up to 1 year. Our spinal cord research in primates is advantageous in understanding the characteristics of hind limb functions only, which possibly mimic the human motor behavior. This study may be also useful in detecting the beneficial effect of various donor tissue–neuroprotective drugs on the repair of impaired functions in a bipedal primate model of spinal injury.
Sarah M. Coppola, Philippe C. Dixon, Boyi Hu, Michael Y.C. Lin and Jack T. Dennerlein
keyboards on severity of symptoms and functional status of individuals with work related upper extremity disorders . J Occup Rehabil . 2006 ; 16 : 707 – 718 . PubMed ID: 17086502 doi:10.1007/s10926-006-9054-z 10.1007/s10926-006-9054-z 15. Ziba . Can Ergonomics find a place in the home? . 1994 https
Mary Hellen Morcelli, Dain Patrick LaRoche, Luciano Fernandes Crozara, Nise Ribeiro Marques, Camilla Zamfolini Hallal, Mauro Gonçalves and Marcelo Tavella Navega
gait speed. 7 , 8 Poor lower limb strength has been associated with slow gait speed and the likelihood of falling, making it an important predictor of functional status in older adults. 9 – 12 The association exists because joint torques at the hip, knee, and ankle are summed in a coordinated fashion
Aaron Derouin and Jim R. Potvin
and ACLD participants, we were unable to control for different types of surgical repair and functional status. The sample size for each injury group was relatively small, and the age range (21–47 y) of the participants was not ideal. Kinematic and kinetic analyses were limited to the 2 dimensions
Cameron T. Gibbons, Polemnia G. Amazeen and Aaron D. Likens
performance . Consciousness and Cognition, 12 ( 3 ), 376 – 402 . PubMed ID: 12941284 doi:10.1016/S1053-8100(03)00005-9 10.1016/S1053-8100(03)00005-9 Mazzà , C. , Benvenuti , F. , Bimbi , C. , & Stanhope , S.J. ( 2004 ). Association between subject functional status, seat height, and movement
Byron Lai, Eunbi Lee, Mayumi Wagatsuma, Georgia Frey, Heidi Stanish, Taeyou Jung and James H. Rimmer
: 17718819 doi:10.1111/j.1469-8749.2007.00647.x 10.1111/j.1469-8749.2007.00647.x Fortuna , R.J. , Holub , A. , Turk , M.A. , Meccarello , J. , & Davidson , P.W. ( 2018 ). Health conditions, functional status and health care utilization in adults with cerebral palsy . Family Practice, 35 ( 6