Slowed Muscle Force Production and Sensory Organization Deficits Contribute to Altered Postural Control Strategies in Children With Developmental Coordination Disorder.

Slowed muscle force production and sensory organization deficits contribute to altered postural control strategies in children with developmental coordination disorder.

Res Dev Disabil. 2013 Jul 2; 34(9): 3040-3048
Fong SS, Ng SS, Yiu BP

This study aimed to (1) compare the postural control strategies, sensory organization of balance control, and lower limb muscle performance of children with and without developmental coordination disorder (DCD) and (2) determine the association between postural control strategies, sensory organization parameters and knee muscle performance indices among children with DCD. Fifty-eight DCD-affected children and 46 typically developing children participated in the study. Postural control strategies and sensory organization were evaluated with the sensory organization test (SOT). Knee muscle strength and time to produce maximum muscle torque (at 180°/s) were assessed using an isokinetic machine. Analysis of variance was used to compare the outcome variables between groups, and multiple regression analysis was used to examine the relationships between postural control strategies, sensory organization parameters, and isokinetic indices in children with DCD. The DCD group had significantly lower strategy scores (SOT conditions 5 and 6), lower visual and vestibular ratios, and took a longer time to reach peak torque in the knee flexor muscles than the control group (p>0.05). After accounting for age, sex, and body mass index, the vestibular ratio explained 35.8% of the variance in the strategy score of SOT condition 5 (p<0.05). Moreover, the visual ratio, vestibular ratio, and time to peak torque of the knee flexors were all significant predictors (p<0.05) of the strategy score during SOT condition 6, accounting for 14, 19.7, and 19.8% of its variance, respectively. The children with DCD demonstrated deficits in postural control strategy, sensory organization and prolonged duration of muscle force development. Slowed knee muscle force production combined with poor visual and vestibular functioning may result in greater use of hip strategy by children with DCD in sensory challenging environments. HubMed – rehab


Effect of gender on strength gains after isometric exercise coupled with electromyographic biofeedback in knee osteoarthritis: A preliminary study.

Ann Phys Rehabil Med. 2013 Jun 24;
Anwer S, Equebal A, Nezamuddin M, Kumar R, Lenka PK

The objective of this trial was to evaluate the effect of gender on strength gains after five week training programme that consisted of isometric exercise coupled with electromyographic biofeedback to the quadriceps muscle.Forty-three (20 men and 23 women) patients with knee osteoarthritis (OA), were placed into two groups based on their gender. Both groups performed isometric exercise coupled with electromyographic biofeedback for five days a week for five weeks.Both groups reported gains in muscle strength after five week training. However, the difference was found to be statistically insignificant between the two groups (P=0.224).The results suggest that gender did not affect gains in muscle strength by isometric exercise coupled with electromyographic biofeedback in patients with knee OA. HubMed – rehab


Novel Treatment for Geriatric Hoarding Disorder: An Open Trial of Cognitive Rehabilitation Paired with Behavior Therapy.

Am J Geriatr Psychiatry. 2013 Jul 3;
Ayers CR, Saxena S, Espejo E, Twamley EW, Granholm E, Wetherell JL

To investigate the feasibility of an age-adapted, manualized behavioral treatment for geriatric hoarding.Participants were 11 older adults (mean age: 66 years) with hoarding disorder. Treatment encompassed 24 individual sessions of psychotherapy that included both cognitive rehabilitation targeting executive functioning and exposure to discarding/not acquiring. Hoarding severity was assessed at baseline, mid-treatment, and posttreatment.Results demonstrated clinically and statistically significant changes in hoarding severity at posttreatment. No participants dropped out of treatment. Eight participants were classified as treatment responders, and three as partial responders. Partial responders reported severe/extreme hoarding and psychiatric comorbidities at baseline.The combination of cognitive rehabilitation and exposure therapy is a promising approach in the treatment of geriatric hoarding. Targeting neurocognitive deficits in behavioral therapy for these geriatric patients with hoarding disorder doubled response rates relative to our previous trial of cognitive behavior therapy alone. HubMed – rehab