Ghada abdel moneim mohamed aly

Introduction: To date, no study has examined the effect of ankle kinesiotaping on eccentric versus concentric subtalar evertor and invertor strength nor compared its effect between evertors and invertors. This study examined the effect of kinesiotaping on peak subtalar evertor and invertor eccentric and concentric torques assessed at 120°/sec. Eccentric versus concentric torque in both muscle groups as well as evertor versus invertor torque at both modes of muscle contraction were examined. Methods. A group of 30 healthy individuals (24 males and 6 females) with mean age 21 ± 2.73 years, height 1.73 ± 0.08 m, and weight 75 ± 6.20 kg were tested. They were randomly tested with kinesio tape use and without. The kinesio tape was applied on the tibialis anterior, tibialis posterior, peroneus longus and peroneus brevis muscles. The peak torques were assessed using a Biodex isokinetic dynamometer. Results: 2×2×2 Repeated Measures ANoVA revealed that the peak torque was significantly higher with kinesio tape use compared with no tape for both eccentric and concentric evertors, and eccentric invertors (p 0.009). The eccentric peak torque was significantly higher than the concentric for both evertors and invertors with kinesio tape use, and evertors with no tape (p 0.001). Finally, the invertor concentric torque was significantly higher than the evertor torque with no tape use (p < 0.001). Conclusions: Ankle kinesiotaping improves both evertor and invertor torques, with the eccentric torque being significantly improved compared with the concentric. No significant effect on evertors versus invertors was found. This suggests kinesio tape use for managing musculoskeletal disorders caused by impaired subtalar muscle strength as lateral ankle sprains. Key words: ankle, isokinetic, strength, subtalar, taping

Prediction of vertebral properties and associated fracture risk is a serious challenge for patients who have osteoporosis. This study aimed to enhance the prediction capability of the computed tomography-based finite element model (CT/FEM) for the strength, stiffness, and failure pattern of the vertebrae under compression. Twelve thoracic and eight lumbar vertebrae (T12-14 & L1-2) were imaged using CT scanner with specific parameters for an accurate representation of the vertebral bone geometry to build the 3D models. Uniaxial compressive load testing of the vertebrae was conducted. Non-linear FE analysis was performed to simulate the experimental testing with the same boundary conditions. The average thoracic vertebral stiffness and strength was 9545 ±1880 N/mm (range 6736-13628 N/mm) and 10198 ± 1486 N (8094 - 12967 N) respectively. While for the lumbar part, the mean stiffness and strength were 9206 ±932 N/mm (8238 - 10693 N/mm) and 10125 ± 1445 N (8389 – 11931 N). There was no significant difference between thoracic and lumbar specimens in the stiffness (p = 0.637) or the strength (p = 0.919). The study showed a strong correlation between the predicted and measured results for the peak load (r = 0.90) and moderate correlation for the stiffness (r = 0.68). The experimental fracture cracks and their locations in the specimens agreed reasonably well with those of the CT/FE models. The non-linear FE analysis was successfully validated by the in-vitro experiment. This modeling approach could be adapted to assess in-vivo loading conditions, therapeutic effects, and surgical spinal implants , Keywords: compressive strength; Finite element analysis; osteoporosis; thoracolumbar spine; vertebral fracture

BACKGROUND: Sacroiliac joint dysfunction (SIJD) accounts for up to 30% of patients with low back pain. Rigid taping techniques are often used for conservative treatment of SIJD related symptoms; however, its effectiveness has not been systematically evaluated.

OBJECTIVES: The aim of our study was to investigate the effect of rigid tape on pain, malalignment and mobility deficits associated with anterior innominate SIJD.

METHODS: Two groups (n= 37; experimental and control) diagnosed with SIJD participated in a randomized, controlled trial. Tape was applied for 2 weeks in the experimental group, whereas the control group received no treatment. 2 × 2 (group × time) GLM-MANOVA assessed effects of tape on pain; innominate rotation; and hip rotation range of motion. Chi-square and McNemar tests assessed the effect of tape on Gillet and Sitting forward flexion mobility tests; the Patrick, Posterior shear and Gaenslen pain provocation tests were used to test pain. Variables were assessed before (PRE) and after (POST) two weeks.

RESULTS: No group differences were observed for any variable PRE. Pain intensity, innominate rotation (p< 0.05) and number of positive mobility and pain provocation tests (p< 0.05) decreased from PRE versus POST in the experimental group. No differences were observed in the control group.

CONCLUSION: Two weeks of rigid tape for anterior innominate correction successfully reduced symptoms related to SIJD.

Impaired skeletal muscle endurance may be an important causal factor in the development of patellofemoral pain syndrome (PFPS). However, there is lack of information regarding the effect of hip versus knee muscle fatigue on isokinetic parameters of hip and knee muscles in those patients. The aim was to investigate the effect of hip abductors versus knee extensors fatigue on knee joint position sense (KJPS), hip and knee muscle strength in patients with PFPS. Fifteen female patients with PFPS participated in the study. Isolated muscle fatigue of two muscles was induced isokinetically on the affected side in a two separate sessions with a rest interval of at least 3 days. After determining peak torque, patients performed continuous maximal concentric-eccentric contraction of the selected muscle until the torque output dropped below 50% of peak torque value for 3 consecutive repetitions. Knee absolute angular error (AAE) at angle 45o, eccentric hip abductors' and knee extensors' peak torques were recorded before and immediately after each fatigue protocol. Results showed that eccentric knee extensors’ peak torque decreased significantly after hip abductors fatigue protocol compared to pre fatigue condition (p<0.05). On the other hand, there was no statistically significant difference in the eccentric hip abductors’ peak torque after admitting knee extensors fatigue protocol (p>0.05). Moreover, no statistically significant difference was found in knee AAE after either hip or knee fatigue protocol (p>0.05). As a conclusion, a hip focused rehabilitation program may be beneficial in improving knee function through correcting faulty kinematics and hence decrease knee loading in patients with PFPS.

Background: Sprained ankle a common orthopedic injury. The standard treatment for ankle sprains remains nonoperative. Ankle taping was used to protect and prevent ligaments excessive strain. So, the current study aimed at investigating the effect of spa-care Kinesio tape versus standard white athletic tape on myoelectric activities (EMG) of ankle evertors (peroneus longus) and invertors (tibialis anterior) in a chronic ankle sprain.Methods: A convenient sample of 30 patients with a chronic ankle sprain (18 females and 12 males) were included in this study. Their mean age ±SD was 24 ±1.2 years. Their height was 175±4.8 cm among men & 163±5.2 cm for females, and weight was 85±5.2 kg for males & 74±5.5 kg for women. It was a within-group design in which the same participant experienced the two types of taping compared to no taping condition. Root mean square (RMS) was measured while participants were moving the isokinetic dynamometer at an angular velocity of 120°/sec using concentric contraction mode through full ankle range of motion. The EMG (RMS) of evertors and invertors was measured immediately after the three taping ways (no tape, Kinesio tape, and athletic tape) with a one-week interval between each taping.
Results: Spa-care Kinesiotape significantly reduced evertors and invertors EMG (RMS) compared with no tape or athletic tape in patients with chronic ankle sprain. Mean± SD of the evertors was 0.7 (±0.1) for no tape and 0.58 (±0.2) for Kinesio tape. The P value was 0.000 for kinesio tape in evertors compared with no tape. Also, mean± SD of the invertors was 0.87 (±0.23) for no tape, and 0.54 (±0.1) for Kinesio tape and the P value was 0.001 for Kinesio tape in invertors compared with no tape.
Conclusion: Spa-care Kinesio tape may be useful for reducing EMG activity of ankle muscles in a chronic ankle sprain.

[Purpose] This study was conducted to investigate the effect of Wiihabilitation on the ankle dorsiflexion/plantar flexion strength ratio in adults. [Subjects and Methods] Thirty-two healthy male volunteers were randomly assigned to two equal groups (experimental and control). Participants in the experimental group received a Wiihabilitation training program for six weeks. Data were collected using a Biodex system 3 Isokinetic dynamometer. Peak torques of the dorsiflexors and plantar flexors were measured at an angular velocity of 60°/sec which in turn were used to derive the ankle dorsiflexion/plantar flexion strength ratio. [Results] The mean values of the ankle dorsiflexion/plantar flexion strength ratio decreased significantly between before and after the training in the experimental group, meanwhile there was no significant difference between before and after the training period in the control group . [Conclusion] Wiihabilitation has an impact on the ankle dorsiflexion/plantar flexion strength ratio, so it can be considered an effective training tool in terms of the ankle strength ratio. Thus, it could be recommended for both prevention and rehabilitation of ankle instability patients.

[Purpose] This study was conducted to investigate the effect of Wiihabilitation on the ankle dorsiflexion/plantar flexion strength ratio in adults. [Subjects and Methods] Thirty-two healthy male volunteers were randomly assigned to two equal groups (experimental and control). Participants in the experimental group received a Wiihabilitation training program for six weeks. Data were collected using a Biodex system 3 Isokinetic dynamometer. Peak torques of the dorsiflexors and plantar flexors were measured at an angular velocity of 60°/sec which in turn were used to derive the ankle dorsiflexion/plantar flexion strength ratio. [Results] The mean values of the ankle dorsiflexion/plantar flexion strength ratio decreased significantly between before and after the training in the experimental group, meanwhile there was no significant difference between before and after the training period in the control group . [Conclusion] Wiihabilitation has an impact on the ankle dorsiflexion/plantar flexion strength ratio, so it can be considered an effective training tool in terms of the ankle strength ratio. Thus, it could be recommended for both prevention and rehabilitation of ankle instability patients.