The effects of fatigue on plantar pressure and balance in adolescent volleyball players with and without history of unilateral ankle injury

2020 ◽  
Vol 35 (1) ◽  
pp. 29-36 ◽  
Author(s):  
A. Farzami ◽  
M. Anbarian
Keyword(s):  
Plantar Pressure ◽  
Ankle Injury ◽  
Volleyball Players ◽  
History Of

scholarly journals Relationship Between Changes in Activity and Plantar Ulcer Recurrence in a Patient With Diabetes Mellitus

2005 ◽  
Vol 85 (6) ◽  
pp. 579-588 ◽  
Author(s):  
Donovan J Lott ◽  
Katrina S Maluf ◽  
David R Sinacore ◽  
Michael J Mueller
Keyword(s):  
Diabetes Mellitus ◽  
Plantar Pressure ◽  
Weight Bearing ◽  
Rapid Change ◽  
Activity Level ◽  
Ulcer Recurrence ◽  
Sudden Increase ◽  
Average Value ◽  
Plantar Ulcer ◽  
History Of

Abstract Background and Purpose. Although pressure-reducing interventions have been effective in the healing of neuropathic foot ulcers, these ulcers frequently recur in people with diabetes mellitus (DM). This case report illustrates how sudden changes in weight-bearing activity may have affected ulcer recurrence in a patient with DM and how the physical stress theory (PST) relates to ulcer recurrence for this patient. Case Description. The patient was a 66-year-old man with a history of DM, peripheral neuropathy, and recurrent plantar ulcers. His plantar ulcer healed after total contact casting. Outcome. Despite relatively low peak plantar pressure (9.3 N/cm2), the patient's ulcer recurred within 4 weeks of healing. Plantar pressure assessment and activity monitoring suggested that a rapid and sudden increase in weight-bearing activity (steps per day) contributed to cumulative plantar tissue stress that was 3.3 times higher on the day of ulcer recurrence than his average value. Although his cumulative plantar stress was high compared with his usual value, the cumulative value was similar to the amount of daily stress of individuals without a history of recurrent ulcers. Discussion. Within the context of the PST, rapid change in activity level may have an effect on cumulative stress and the risk of ulcer recurrence.

scholarly journals Osteoarthritis Prevalence in Retired National Football League Players With a History of Ankle Injuries and Surgery

2019 ◽  
Vol 54 (11) ◽  
pp. 1165-1170
Author(s):  
Kyeongtak Song ◽  
Erik A. Wikstrom ◽  
Joshua N. Tennant ◽  
Kevin M. Guskiewicz ◽  
Stephen W. Marshall ◽  
...  
Keyword(s):  
National Football League ◽  
Surgical Intervention ◽  
Ankle Injury ◽  
American Football ◽  
Ankle Injuries ◽  
Daily Activities ◽  
Surgical Interventions ◽  
Exposure Variable ◽  
History Of ◽  
Estimate Prevalence

Context Ankle injuries are common at all levels of American football, and retired National Football League (NFL) players have a high prevalence of osteoarthritis (OA), but little is known about how ankle injuries influence OA prevalence and daily activities in this population or how surgical interventions for such injuries alter the risk of OA. Objective To examine (1) the association of ankle-injury history with OA prevalence, (2) the association of surgical intervention after ankle injury with OA prevalence, and (3) the relationships among ankle injuries, reported OA, and daily activities in retired NFL players. Design Case-control study. Setting Survey. Patients or Other Participants Data from the Retired NFL Players General Health Survey. Main Outcome Measure(s) We created a 7-category main exposure variable that differentiated respondents by football-related ankle injury and surgical intervention. Multivariable binomial regression models were used to estimate prevalence ratios and 95% confidence intervals. Among those reporting OA, we examined the distribution of responses regarding whether OA affected daily activities. Results Among the 2446 respondents, 920 participants experienced OA in any joint during their lifetime. Compared with those reporting no ankle injuries, the prevalence of OA was higher among those with a history of ankle injury. Also, the prevalence of OA was higher among those who had undergone surgery versus those who had not. The number of retired NFL players who reported that OA often affected their daily activities increased with the number of ankle injuries. Conclusions Among former NFL players, a history of ankle injury increased the prevalence of OA. More ankle injuries increased the probability that OA negatively affected daily activities. Future prospective research is needed to better determine the influence of surgical intervention at the ankle or foot on OA.

scholarly journals The Effects of Ankle Sprain on Balance Tests in Adolescent Volleyball Players with Previous History of Ankle Sprain

2014 ◽  
Vol 2 (11_suppl3) ◽  
pp. 2325967114S0018
Author(s):  
Ceyda Sarıal ◽  
Abdulhamıt Tayfur ◽  
Beyza Kap ◽  
Dılara Donder ◽  
Ozum Melıs Ertuzun ◽  
...  
Keyword(s):  
Ankle Sprain ◽  
Previous History ◽  
Control Group ◽  
Balance Test ◽  
Balance Tests ◽  
Volleyball Players ◽  
History Of ◽  
One Year ◽  
The Right ◽  
The Impact

Objectives: To investigate the impact of having previous history of inversion ankle sprain on balance tests in adolescent volleyball players. Methods: Fourty-five adolescent volleyball players with mean age of 15.26±1.03 participated in our study. Twenty-nine were uninjured (control group) and sixteen had previously experienced inversion injuries on right ankle. 9 players had the injury more than than one year ago and 7 players had it before six to twelf months. Balancing abilities were evaluated by Star Excursion Balance Test (SEBT) and Single Limb Hurdle Test (SLHT). The fact that players with history of injury had the ankle sprain at right foot led us to perform the measurements in the control group also for the right foot. We compared the results of injured and uninjured players on both tests. Results: Uninjured players' reaching distance on right foot was found out to be significantly more than in players with ankle sprain at medial and posteromedial directions of SEBT(p<.05), whereas there were no differences detected for the other directions (p>.05). For comparing athletes' performances with SLHT, finishing time was found significantly better in uninjured players (p<.05). Conclusion: Adolescent volleyball players with history of injury show lower performance on balance tests compared to uninjured players. This demonstrates that they should be given a training including balance and stabilization programs.

scholarly journals Foot Arch and Plantar Pressure in the Age of 17-21 Years

2021 ◽  
Vol 21 (2) ◽  
pp. 124-129
Author(s):  
Arif Wicaksono ◽  
Sasanthy Kusumaningtyas ◽  
Angela BM Tulaar
Keyword(s):  
Plantar Pressure ◽  
Pressure Difference ◽  
Lower Limbs ◽  
P Value ◽  
Research Subjects ◽  
Whitney Test ◽  
Mann Whitney Test ◽  
Foot Arch ◽  
History Of ◽  
The Right

Research on the plantar segment has not been widely carried out in Indonesia’s population, even though the plantar segment data will be essential in further research and therapy of plantar-related problems. Therefore, this research intends to describe the plantar profile: the foot arch and the plantar pressure difference between the right and left foot. This research applied a cross-sectional study. Subjects were recruited from the Faculty of Medicine students, Universitas Indonesia, class 2012, with inclusion criteria aged 17-21 years and normal gait. Meanwhile, the exclusion criteria consisted of having postural abnormalities, a history of neuromusculoskeletal disorders in the lower limbs, a history of fractures in the spine and legs, a history of surgery on the spine and legs, and refusing to participate in the study. Research subjects stood on a plantar scanner, conducted at the Anatomy Laboratory, the Faculty of Medicine, Universitas Indonesia. The Mann-Whitney test was then used to analyze the difference in plantar pressure between the right and left foot. The results revealed that a hundred research subjects had a proportion of a low foot arch of 4%, a normal foot arch of 89%, and a high foot arch of 7%. The median right plantar pressure was 273.5 KPa, while the median left plantar pressure was 253.5 KPa. The Mann-Whitney test showed a p-value of 0.954 for the pressure difference between right and left foot. There was no plantar pressure difference between the right and left foot.

Synovial Osteochondromatosis Involvement in Post-traumatic Ankle Injury

2008 ◽  
Vol 98 (1) ◽  
pp. 70-74 ◽  
Author(s):  
Daniel K. Lee ◽  
Louis Louk ◽  
Bryan L. Bell
Keyword(s):  
Traumatic Event ◽  
Synovial Chondromatosis ◽  
Ankle Injury ◽  
Resonance Imaging ◽  
Tibiotalar Joint ◽  
Synovial Osteochondromatosis ◽  
Unusual Condition ◽  
History Of ◽  
Post Traumatic ◽  
Synovial Tissues

Ankle involvement by synovial chondromatosis is unusual. It is unknown whether a post-traumatic event to the ankle induces the formation and development of these lesions. Synovial osteochondromatosis associated with post-traumatic ankle events are rare but suggest trauma to the synovial tissues as being causative, although this has never been statistically confirmed owing to the lack of reports and frequency. We report a case of primary synovial osteochondromatosis involving the tibiotalar joint with painful symptoms after a history of ankle injury, including magnetic resonance imaging findings of this unusual condition. (J Am Podiatr Med Assoc 98(1): 70–74, 2008)

Plantar Pressures During Shod Gait in Diabetic Neuropathic Patients with and without a History of Plantar Ulceration

2009 ◽  
Vol 99 (4) ◽  
pp. 285-294 ◽  
Author(s):  
Isabel C. N. Sacco ◽  
Tatiana Almeida Bacarin ◽  
Maíra Grizzo Canettieri ◽  
Ewald M. Hennig
Keyword(s):  
Diabetic Neuropathy ◽  
Plantar Pressure ◽  
Clinical History ◽  
Control Group ◽  
Diabetic Patients ◽  
Plantar Pressures ◽  
Time Integral ◽  
Pressure Time ◽  
Plantar Ulcers ◽  
History Of

Background: Diabetic neuropathy leads to progressive loss of sensation, lower-limb distal muscle atrophy, autonomic impairment, and gait alterations that overload feet. This overload has been associated with plantar ulcers even with consistent daily use of shoes. We sought to investigate and compare the influence of diabetic neuropathy and plantar ulcers in the clinical history of diabetic neuropathic patients on plantar sensitivity, symptoms, and plantar pressure distribution during gait while patients wore their everyday shoes. Methods: Patients were categorized into three groups: a control group (CG; n = 15), diabetic patients with a history of neuropathic ulceration (DUG; n = 8), and diabetic patients without a history of ulceration (DG; n = 10). Plantar pressure variables were measured by Pedar System shoe insoles in five plantar regions during gait while patients wore their own shoes. Results: No statistical difference between neuropathic patients with and without a history of plantar ulcers was found in relation to symptoms, tactile sensitivity, and duration of diabetes. Diabetic patients without ulceration presented the lowest pressure–time integral under the heel (72.1 ± 16.1 kPa × sec; P = .0456). Diabetic patients with a history of ulceration presented a higher pressure–time integral at the midfoot compared to patients in the control group (59.6 ± 23.6 kPa × sec × 45.8 ± 10.4 kPa × sec; P = .099), and at the lateral forefoot compared to diabetic patients without ulceration (70.9 ± 17.7 kPa sec × 113.2 ± 61.1 kPa × sec, P = .0193). Diabetic patients with ulceration also presented the lowest weight load under the hallux (0.06 ± 0.02%, P = .0042). Conclusions: Although presenting a larger midfoot area, diabetic neuropathic patients presented greater pressure–time integrals and relative loads over this region. Diabetic patients with ulceration presented an altered dynamic plantar pressure pattern characterized by overload even when wearing daily shoes. Overload associated with a clinical history of plantar ulcers indicates future appearance of plantar ulcers. (J Am Podiatr Med Assoc 99(4): 285–294, 2009)

The Relationship Between Joint Stiffness and Muscle Activity in Unstable Ankles and Copers

2017 ◽  
Vol 26 (1) ◽  
pp. 15-25 ◽  
Author(s):  
Alan R. Needle ◽  
Thomas W. Kaminski ◽  
Jochen Baumeister ◽  
Jill S. Higginson ◽  
William B. Farquhar ◽  
...  
Keyword(s):  
Outcome Measures ◽  
Tibialis Anterior ◽  
Muscle Activation ◽  
Joint Stiffness ◽  
Ankle Injury ◽  
Group Differences ◽  
Injury Rehabilitation ◽  
Ankle Stiffness ◽  
History Of ◽  
The Relationship

Context:Rolling sensations at the ankle are common after injury and represent failure in neural regulation of joint stiffness. However, deficits after ankle injury are variable and strategies for optimizing stiffness may differ across patients.Objective:To determine if ankle stiffness and muscle activation differ between patients with varying history of ankle injury.Patients:Fifty-nine individuals were stratified into healthy (CON, n = 20), functionally unstable (UNS, n = 19), and coper (COP, n = 20) groups.Main Outcome Measures:A 20° supination perturbation was applied to the ankle as position and torque were synchronized with activity of tibialis anterior, peroneus longus, and soleus. Subjects were tested with muscles relaxed, while maintaining 30% muscle activation, and while directed to react and resist the perturbation.Results:No group differences existed for joint stiffness (F = 0.07, P = .993); however, the UNS group had higher soleus and less tibialis anterior activation than the CON group during passive trials (P < .05). In addition, greater early tibialis anterior activation generally predicted higher stiffness in the CON group (P ≤ .03), but greater soleus activity improved stiffness in the UNS group (P = .03).Conclusion:Although previous injury does not affect the ability to stiffen the joint under laboratory conditions, strategies appear to differ. Generally, the COP has decreased muscle activation, whereas the UNS uses greater plantar-flexor activity. The results of this study suggest that clinicians should emphasize correct preparatory muscle activation to improve joint stiffness in injury-rehabilitation efforts.

Comparison of Orthotic Materials on Foot Pain, Comfort, and Plantar Pressure in the Neuroischemic Diabetic Foot

2008 ◽  
Vol 98 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Joshua Burns ◽  
Lindy Begg ◽  
Mauro Vicaretti
Keyword(s):  
Diabetes Mellitus ◽  
Diabetic Foot ◽  
Plantar Pressure ◽  
Arterial Disease ◽  
Cross Sectional Study ◽  
Foot Orthoses ◽  
Foot Pain ◽  
Cross Sectional ◽  
History Of ◽  
Peripheral Arterial

Foot pain and lower-limb neuroischemia in diabetes mellitus is common and can be debilitating and difficult to treat. We report a comparison of orthotic materials to manage foot pain in a 59-year-old man with type 1 diabetes mellitus, peripheral neuropathy, peripheral arterial disease, and a history of foot ulceration. We investigated a range of in-shoe foot orthoses for comfort and plantar pressure reduction in a cross-sectional study. The most comfortable and most effective pressure-reducing orthoses were subsequently evaluated for pain relief in a single system alternating-treatment design. After 9 weeks, foot pain was completely resolved with customized multidensity foot orthoses. The outcome of this case study suggests that customized multidensity foot orthoses may be a useful intervention to reduce foot pain and maintain function in the neuroischemic diabetic foot. (J Am Podiatr Med Assoc 98(2): 143–148, 2008)

scholarly journals Effect of training on the development of exercise-induced arterial hypoxemia in volleyball players

2020 ◽  
Vol 24 (6) ◽  
pp. 312-318
Author(s):  
Selcen Korkmaz Eryılmaz ◽  
Kerimhan Kaynak
Keyword(s):  
Minute Ventilation ◽  
Training Period ◽  
Oxyhemoglobin Saturation ◽  
Arterial Hypoxemia ◽  
Ventilatory Equivalent ◽  
Significant Difference ◽  
Volleyball Players ◽  
Before And After ◽  
History Of ◽  
Exercise Induced

Background and Study Aim. The purpose of this study was to examine the effect of volleyball training on the development of exercise-induced arterial hypoxemia during incremental exercise in male competitive volleyball players. Material and Methods.  Eight male amateur volleyball players (age 21±1.3 years) participated in a 6-week volleyball training program three times a week in the pre-season preparatory period. Before and after the training period, all players performed an incremental treadmill test to determine maximal oxygen uptake (VO2max), and oxyhemoglobin saturation (SaO2) was continuously measured using a pulse oximeter during the test. Maximal values of minute ventilation (VEmax), respiratory exchange ratio (RERmax), ventilatory equivalent for oxygen (VE/VO2) and carbon dioxide (VE/VCO2) were determined. Exercise-induced arterial hypoxemia (EIAH) was defined as a SaO2 decreased by at least 4% (ΔSaO2≤ −4%) from resting level. Results. All the players exhibited exercise-induced arterial hypoxemia before (ΔSaO2= –8.8±3.3%) and after (ΔSaO2= –8.31.5%) the training period. SaO2 was significantly decreased from 97.6±1% at rest to 88.7±2.7% at exhaustion before the training period, and from 97.2±1.1% at rest to 88.8±2.1% at exhaustion after training period (p < 0.001). There was no significant difference in resting and lowest SaO2 values by comparison between the before and after training (p > 0.05). There were no significant changes in VO2max, VEmax, RERmax, VE/VO2 and VE/VCO2 after training period (p > 0.05). Conclusions. The results of this study showed that volleyball players with a history of anaerobic training may exhibit EIAH, but that 6-week volleyball training has no effect on the degree of exercise-induced arterial hypoxemia.

scholarly journals Comparison of Motion Control Screening Test Scores in Active Women with a History of Knee and Ankle Injuries

2021 ◽  
Vol 6 (4) ◽  
pp. 56-67
Author(s):  
Maryam Golmoradi Marani ◽  
◽  
Amir Letafatkar ◽  
Seyed Sadredin Shojaedin ◽  
◽  
...  
Keyword(s):  
Test Scores ◽  
Movement Control ◽  
Ankle Injury ◽  
Ankle Injuries ◽  
Functional Movement ◽  
Statistical Population ◽  
Movement Screening ◽  
History Of ◽  
Levene Test ◽  
Functional Movement Screening

Objective: Commenting on the return to sport after some injury is in doubt. The aim of this study was to investigate the relationship between test scores of movement control and a history of knee and ankle injury in active females. Methods: Statistical population of this study was 57 active females (22 healthy subjects, 19 subjects with a history of previous knee injury and 16 subjects with a history of previous ankle injury) with age ranging from 18 to 25 years old. In order to evaluate subjects, were used to the movement control test set consists of nine separate questions. Total maximum points in the subtests were 40 points, which less point was a better result in these tests. For statistical analysis, Kolmogorov-Smirnov test, Levene test, analysis of variance (ANOVA) and Tukey test were used (Significant at 95% and the alpha less than or equal 0.05, and using of the SPSS software v. 22). Results: The results of this study showed test scores of movement control earned by females with a history of ankle and knee injuries was significantly different with the healthy females (P=0.001).Compare scores of subjects with contact and non-contact injuries with healthy women showed that contact injury had higher scores than those who are non-contact injuries. The differences between the groups with any of these injuries are significant with no injury group (P=0.001).Cut-off point for this test was about 15.5. Conclusion: The scores of functional movement screening give a detailed model of the injury prevention to coaches in order to predict the risk of lower extremity injuries in athletes. So its need to coaches in order to the prevention of sports injuries, use the functional movement screening tests. To measure the performance level of the athletes before the start of the season, in order to identified athletes that are at risk of injury, in order to improve their capabilities.

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