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Raju A, Jayaraman K, Nuhmani S, Sebastian S, Khan M, Alghadir AH. Effects of hip abductor with external rotator strengthening versus proprioceptive training on pain and functions in patients with patellofemoral pain syndrome: A randomized controlled trial. Medicine (Baltimore) 2024; 103:e37102. [PMID: 38363950 PMCID: PMC10869081 DOI: 10.1097/md.0000000000037102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/08/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND Strengthening the hip muscles, particularly the abductors and rotators, has been reported beneficial for treating Patellofemoral pain syndrome (PFPS). Proprioceptive training (PT) is also shown to improve musculoskeletal pain and function in PFPS. The most appropriate treatment from these 2 is unclear. This study aimed to compare the effects of hip abductors and external rotator strengthening exercises along with conventional physical therapy (CPT) vs the proprioceptive training of the knee along with CPT in patients with PFPS. METHODS Forty-five participants were divided into 3 groups, experimental group 1 (EG 1), experimental group 2 (EG 2), and control group (CG), with fifteen participants in each group. EG 1 received hip abductor and external rotator strengthening exercises in addition to CPT. EG 2 received proprioceptive training and CPT. CG received CPT alone. Intervention programs lasted for 4 weeks. The pain was measured by Kujala Anterior Knee Pain Scale (AKPS). The study was registered retrospectively in the protocol registration and results system (clinicaltrials.gov, ID: NCT05698797 on 26/01/2023). RESULTS AKPS scores significantly (P < .001) improved in all 3 groups. A significant (P < .05) difference was also observed between all 3 groups. The greatest improvement was observed in EG 1, followed by EG 2 and CG. CONCLUSION The addition of hip abductor and external rotator strengthening exercises to a 4-week CPT program showed a more significant improvement in AKPS scores than the addition of proprioceptive training in patients with PFPS.
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Affiliation(s)
- Aiswarya Raju
- Department of Physiotherapy, AWH Special College, Affiliated to Kerala University of Health Sciences, Kozhikode, Kerala, India
| | - Kavitha Jayaraman
- Department of Physiotherapy, AWH Special College, Affiliated to Kerala University of Health Sciences, Kozhikode, Kerala, India
| | - Shibili Nuhmani
- Department of Physical Therapy, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Salbin Sebastian
- Department of Physiotherapy, AWH Special College, Affiliated to Kerala University of Health Sciences, Kozhikode, Kerala, India
| | - Masood Khan
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Ahmad H. Alghadir
- Department of Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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Rhode C, Louw QA, Leibbrandt DC, Williams L. Joint position sense in individuals with anterior knee pain. SOUTH AFRICAN JOURNAL OF PHYSIOTHERAPY 2021; 77:1497. [PMID: 33824918 PMCID: PMC8008049 DOI: 10.4102/sajp.v77i1.1497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 11/17/2020] [Indexed: 11/02/2022] Open
Abstract
BACKGROUND Anterior knee pain (AKP) commonly affects both physically active and sedentary individuals and the aetiology is unknown. Altered joint position sense (JPS) impacts accurate motor action and knee joint stability. It is unclear whether people with AKP have altered JPS. OBJECTIVE The aim of our study was to investigate JPS in the knees of individuals with AKP. METHOD A descriptive cross-sectional study measured JPS in 25 participants with unilateral or bilateral AKP. JPS was measured using active JPS testing during single leg squat (SLS) and active knee extension (AKE) in sitting. Target angles (TA) were self-determined based on each participant's capabilities. The absolute error (AE) was the main outcome measure. Impaired JPS was classified as an AE equal to or greater than five degrees. RESULTS There were no significant differences in JPS when comparing the affected and unaffected knees in participants with AKP (p > 0.05). However, a subgroup of participants with altered knee JPS was identified. There was a tendency towards greater knee flexion in the TAs of knees without AKP. CONCLUSION Our results showed that JPS is not significantly more impaired in knees with AKP compared with knees without AKP in a group of individuals with AKP. A subgroup with altered JPS in knees with and without AKP was identified. This finding could be because of compensatory gait patterns and the precision of the Vicon 3D motion analysis system. CLINICAL IMPLICATIONS Joint position sense should be assessed bilaterally in individuals with AKP.
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Affiliation(s)
- Carlyn Rhode
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Stellenbosch University, Cape Town, South Africa
| | - Quinette A Louw
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Stellenbosch University, Cape Town, South Africa
| | - Dominique C Leibbrandt
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Stellenbosch University, Cape Town, South Africa
| | - Leone Williams
- Division of Physiotherapy, Department of Health and Rehabilitation Sciences, Stellenbosch University, Cape Town, South Africa
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Hu H, Zheng Y, Liu X, Gong D, Chen C, Wang Y, Peng M, Wu B, Wang J, Song G, Zhang J, Guo J, Dong Y, Wang X. Effects of neuromuscular training on pain intensity and self-reported functionality for patellofemoral pain syndrome in runners: study protocol for a randomized controlled clinical trial. Trials 2019; 20:409. [PMID: 31288849 PMCID: PMC6617607 DOI: 10.1186/s13063-019-3503-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 06/09/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Patellofemoral pain syndrome (PFPS) is common and affects approximately 15% of individuals at different ages and activity levels. As a non-surgical intervention, physiotherapy is widely used to treat PFPS. Neuromuscular training exercise is one of the most effective methods for decreasing musculoskeletal pain and improving knee function. However, the effectiveness of neuromuscular training exercise for treating PFPS is not without argument. The purpose of this study is to evaluate the effect of neuromuscular training exercise on patellofemoral pain and whether the neuromuscular training exercise have more advantage effects than taping and health education. METHODS We will operate a prospective, single-blind, randomized controlled trial of 60 patients with patellofemoral pain. Individuals will be indiscriminately assigned to two intervention groups and a health education group. The neuromuscular training exercise which includes the muscle strength training, balance training and knee joint proprioception training, and taping group will use "Y" and "I" type taping on the participants three times a week for three months. The health education group will be given education lectures once each week and which last for three months. The primary outcome measures include the adverse events, visual analog scale for pain, and Anterior Knee Pain Scale Index, which is a knee function self-report questionnaire to evaluate the function of the knee especially for PFPS patients. The secondary outcome measures are the muscle strength and endurance of knee joint flexion and extensor muscles, knee joint proprioception, muscle thickness of the quadriceps femoris, knee function ability, and quality of life. We will manage the intention-to-treat analysis for individuals who will withdraw from this study. DISCUSSION According to previous studies, neuromuscular training exercise and the taping method are effective treatment for PFPS patients. In this study, we will perform a neuromuscular training exercise for patients with PFPS. We believe that this study may prove the effectiveness of neuromuscular training exercise in treating PFPS. TRIAL REGISTRATION Chinese Clinical Trial Registry, ChiCTR1800014995 . Registered on 27 February 2018.
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Affiliation(s)
- Haoyu Hu
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Yili Zheng
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Xiaochen Liu
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Di Gong
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Changcheng Chen
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Yizu Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Mengsi Peng
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Bao Wu
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Juan Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Ge Song
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Juan Zhang
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Jiabao Guo
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Yulin Dong
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China
| | - Xueqiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, 399 Changhai RD, Shanghai, China. .,Department of Rehabilitation Medicine, Shanghai Shangti Orthopedics Hospital, Shanghai, 200438, China.
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Abstract
BACKGROUND The deterioration in the somatosensory and motor systems observed with increasing age can cause balance problems. Studies have shown that the use of infrapatellar bandages can enhance proprioception and improve postural balance. AIMS To evaluate the effect of an infrapatellar bandage on static balance and mobility in elderly female fallers and non-fallers. METHODS Forty older women (20 fallers and 20 non-fallers) were evaluated. Mobility (Timed Up and Go test) and balance (force platform) were measured in the presence and absence of additional sensory information (elastic infrapatellar bandage). RESULTS Mobility differed in fallers (p = 0.0001), but not in non-fallers (p = 0.27), when the patellar bandage was applied. Additional sensory information did not improve static balance in either group (p > 0.05), but a trend towards improvement was observed in fallers. CONCLUSION Additional sensory input from an infrapatellar bandage improves mobility but not bipedal stance in elderly fallers.
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Zeinalzadeh A, Talebian S, Naghdi S, Salavati M, Nazary-Moghadam S, Zeynalzadeh Ghoochani B. Effects of vision and cognitive load on static postural control in subjects with and without patellofemoral pain syndrome. Physiother Theory Pract 2017; 34:276-285. [PMID: 29120261 DOI: 10.1080/09593985.2017.1391360] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To compare the effects of vision and cognitive load on static postural control in subjects with and without patellofemoral pain syndrome (PFPS). METHODS Twenty-eight PFPS patients and 28 controls participated in the study. Postural control was assessed in isolation as well as with visual manipulation and cognitive loading on symptomatic limb. The outcome measures of postural control were quantified in terms of area, anterior-posterior (AP), medial-lateral (ML), and mean velocity (MV) of the displacements of center of pressure (COP). In addition, cognitive performance (auditory Stroop task) was measured in the forms of average reaction time and error ratio in baseline (sitting) and different postural conditions. RESULTS PFPS subjects showed greater increases in area (p = 0.01), AP (p = 0.01), and ML (p = 0.05) displacements of COP in the blindfolded tasks as compared to control group. However, cognitive load did not differently affect postural control in the two groups. Although PFPS and control group had similar reaction times in the sitting position (p = 0.29), PFPS subjects had longer reaction times than healthy subjects in dual task conditions (p = 0.04). CONCLUSION Visual inputs seem to be essential for discriminating postural control between PFPS and healthy individuals. PFPS patients biased toward decreasing cognitive performance more than healthy subjects when they perform the single leg stance and cognitive task concurrently.
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Affiliation(s)
- Afsaneh Zeinalzadeh
- a Department of Physical Therapy , Tehran University of Medical Sciences , Tehran , Iran
| | - Saeed Talebian
- a Department of Physical Therapy , Tehran University of Medical Sciences , Tehran , Iran
| | - Soofia Naghdi
- a Department of Physical Therapy , Tehran University of Medical Sciences , Tehran , Iran
| | - Mahyar Salavati
- b Department of Physiotherapy , University of Social Welfare and Rehabilitation Sciences , Tehran , Iran
| | - Salman Nazary-Moghadam
- c School of Paramedical Sciences , Mashhad University of Medical Sciences , Mashhad , Iran
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Springer S, Kelman D, Brand M, Gottlieb U. Knee position sense: does the time interval at the target angle affect position accuracy? J Phys Ther Sci 2017; 29:1760-1765. [PMID: 29184285 PMCID: PMC5684006 DOI: 10.1589/jpts.29.1760] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 07/06/2017] [Indexed: 11/24/2022] Open
Abstract
[Purpose] This study examined whether the interval at the target angle during knee joint position sense (JPS) affected reposition accuracy, and evaluated the consequence of this factor on test-retest reliability. [Subjects and Methods] Twenty healthy subjects participated in this study. Reposition ability was measured after the knee was placed at a target angle (ranging from 40° to 60°) for intervals of 3, 6, 9, and 12 seconds, in randomized order. Two trials were performed for each condition. The measurement was repeated after a week. The absolute error (AE) of each trial and average AE under each condition within the two measures were used for data analysis. [Results] No significant difference was found in comparing the AE or the average AE during all trials and between the two measures. Fair-to-good reliability was found for the AE results of all trials under the conditions of 3, 6, and 12 seconds. Poor reliability was found with time interval of 9 seconds. [Conclusion] The length of time needed to memorize the target angle during knee JPS test might affect test reliability. Practitioners can use this information when collecting JPS data.
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Affiliation(s)
- Shmuel Springer
- Faculty of Health Sciences, Department of Physical Therapy, Ariel University: Hubert Building, Room 412, Ariel, Israel 40700, Israel
| | - Dor Kelman
- Israel Defense Force Medical Corps, Israel
| | - Moshe Brand
- Department of Mechanical Engineering and Mechatronics, Ariel University, Israel
| | - Uri Gottlieb
- Faculty of Health Sciences, Department of Physical Therapy, Ariel University: Hubert Building, Room 412, Ariel, Israel 40700, Israel.,Israel Defense Force Medical Corps, Israel
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Halabchi F, Abolhasani M, Mirshahi M, Alizadeh Z. Patellofemoral pain in athletes: clinical perspectives. Open Access J Sports Med 2017; 8:189-203. [PMID: 29070955 PMCID: PMC5640415 DOI: 10.2147/oajsm.s127359] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Patellofemoral pain (PFP) is a very common problem in athletes who participate in jumping, cutting and pivoting sports. Several risk factors may play a part in the pathogenesis of PFP. Overuse, trauma and intrinsic risk factors are particularly important among athletes. Physical examination has a key role in PFP diagnosis. Furthermore, common risk factors should be investigated, such as hip muscle dysfunction, poor core muscle endurance, muscular tightness, excessive foot pronation and patellar malalignment. Imaging is seldom needed in special cases. Many possible interventions are recommended for PFP management. Due to the multifactorial nature of PFP, the clinical approach should be individualized, and the contribution of different factors should be considered and managed accordingly. In most cases, activity modification and rehabilitation should be tried before any surgical interventions.
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Affiliation(s)
- Farzin Halabchi
- Sports Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Sports and Exercise Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Abolhasani
- Sports Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Sports and Exercise Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Mirshahi
- Sports Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Sports and Exercise Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Alizadeh
- Sports Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Sports and Exercise Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Lee D, Han S. Validation of Joint Position Sense of Dorsi-Plantar Flexion of Ankle Measurements Using a Smartphone. Healthc Inform Res 2017; 23:183-188. [PMID: 28875053 PMCID: PMC5572522 DOI: 10.4258/hir.2017.23.3.183] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 06/17/2017] [Accepted: 07/05/2017] [Indexed: 11/23/2022] Open
Abstract
Objectives This study evaluated and validated the reliability of smartphones as measuring equipment for the dorsi-plantar flexion of ankle joint position sense (JPS) ability. Methods The subjects were 20 healthy young students in their 20s. We confirmed the concurrent validity by comparison with existing electrogoniometer data. The reliability of the smartphone was confirmed using the test-retest method. Results In the case of dorsiflexion, there was no significant difference between the smartphone and electrogoniometer groups (p > 0.05). Regarding the correlation, it was significantly high (r = 0.65, p < 0.05), and ICC(3,1) was good (ICC(3,1) = 0.79). For the case of plantar flexion, there was no significant difference between the smartphone and electrogoniometer groups (p > 0.05), the correlation was significantly high (r = 0.69, p < 0.05), and the ICC(3,1) was very good (ICC(3,1) = 0.82). In the case of dorsiflexion, there was no significant difference between test and retest (p > 0.05), the correlation was intermediate (r = 0.59, p < 0.05), and the ICC(3,1) value was good (ICC(3,1) = 0.74). For plantar flexion, there was no significant difference between test and retest (p > 0.05), the correlation was significantly high (r = 0.63, p < 0.05), and the ICC(3,1) was good (ICC(3,1) = 0.76). Conclusions The results showed that smartphones provide high validity and reliability as measurement equipment for JPS of dorsi-plantar flexion of the ankle. Finally, the study also considers that smartphone-based JPS measuring methods may replace the traditional and expensive methods that are currently being used for the same purpose.
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Affiliation(s)
- Daehee Lee
- Department of Physical Therapy, U1 University, Yeongdong, Korea
| | - Seulki Han
- Department of Physical Therapy, U1 University, Yeongdong, Korea
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Carvalho IFD, Bortolotto TB, Fonseca LCS, Scheicher ME. Uso da bandagem infrapatelar no desempenho físico e mobilidade funcional de idosas com história de quedas. REVISTA BRASILEIRA DE GERIATRIA E GERONTOLOGIA 2015. [DOI: 10.1590/1809-9823.2015.14002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUÇÃO: Algumas alterações ocorrem durante o processo do envelhecimento, dentre as quais se destaca o déficit de equilíbrio postural. Informações sensoriais e ações motoras são importantes no desenvolvimento do controle postural, sendo que idosos podem apresentar alterações sensório-motoras interferindo no equilíbrio postural e aumentando o risco de quedas. Foi demonstrado que a manipulação da informação sensorial no controle postural utilizando a estratégia do toque suave em uma superfície rígida e estacionária reduziu a oscilação corporal comparado com a situação sem toque. OBJETIVOS: Investigar o efeito da adição da informação sensorial bandagem infrapatelar no controle postural e no desempenho físico em idosas caidoras e não caidoras. MÉTODOS: Foram avaliadas 40 idosas, divididas em dois grupos: o Grupo 1, composto de 20 idosas sem histórico de quedas, e o Grupo 2, com 20 idosas com histórico de quedas. A mobilidade e o desempenho físico foram avaliados por meio dos testes Timed Up and Go TUG e Short Physical Performance Battery SPPB, respectivamente, com e sem a bandagem infrapatelar. Após verificação da normalidade dos dados, as comparações foram feitas com o teste t pareado e não pareado, teste de Wilcoxon e teste de Mann-Whitney, com p≤0,05. RESULTADOS: Houve diferença significativa p=0,001 na comparação do TUG em idosas caidoras com a utilização da bandagem infrapatelar. Não houve diferença significativa no uso da adição sensorial no SPPB. CONCLUSÃO: A adição de informação sensorial por meio do uso da bandagem infrapatelar melhora a mobilidade de idosas caidoras, porém não o desempenho físico.
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Holistic approach to understanding anterior knee pain. Clinical implications. Knee Surg Sports Traumatol Arthrosc 2014; 22:2275-85. [PMID: 24760163 DOI: 10.1007/s00167-014-3011-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 04/11/2014] [Indexed: 01/16/2023]
Abstract
Anterior knee pain is one of the most frequent reasons for consultation within knee conditions. The aetiology is not well known, which explains the sometimes unpredictable results of its treatment. Normally, when we see a patient in the office with anterior knee pain, we only study and focus on the knee. If we do this, we are making a big mistake. We must not forget to evaluate the pelvis and proximal femur, as well as the psychological factors that modulate the course of the illness. Both the pelvifemoral dysfunction as well as the psychological factors (anxiety, depression, catastrophization and kinesiophobia) must be included in our therapeutic targets of the multidisciplinary treatment of anterior knee pain. We must not only focus on the knee, we must remember to "look up" to fully understand what is happening and be able to solve this difficult problem. The aetiology of anterior knee pain is multifactorial. Therefore, diagnosis and treatment of patellofemoral disorders must be individualized. Our findings stress the importance of tailoring physiotherapy, surgery and psycho-educational interventions to each patient.
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Felicio LR, Masullo CDL, Saad MC, Bevilaqua-Grossi D. The effect of a patellar bandage on the postural control of individuals with patellofemoral pain syndrome. J Phys Ther Sci 2014; 26:461-4. [PMID: 24707108 PMCID: PMC3976027 DOI: 10.1589/jpts.26.461] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 10/16/2013] [Indexed: 11/26/2022] Open
Abstract
A patellar bandage is often used by individuals with patellofemoral pain syndrome (PPS)
to reduce pain and the additional sensorial input improves proprioception of the knee
joint. The aim of this work was to assess the effect of a patellar bandage on the postural
control of individuals with and without PPS. [Subjects and Methods] An analysis was
performed of variables of center of pressure (CoP) as recorded by a force plate.
Information about the forces and moments in three directions was used to obtain the CoP.
Thirty women participated in this study: 15 with PPS and 15 without PPS. All subjects
performed 3 trials in a unipodal stance with and without a patellar bandage. The force
plate data were used to calculate the following variables: CoP sway area, CoP displacement
frequency, and CoP mean velocity for the anteroposterior (AP) and mediolateral (ML)
directions. A the linear mixed effects model was used for statistical analysis. [Results]
Postural sway was significantly reduced in individuals with PPS when a patellar bandage
was applied. [Conclusion] Additional sensory input from a patellar bandage increase
proprioceptive feedback and this could be related to the improvement in postural control
of PPS subjects.
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Salahzadeh Z, Maroufi N, Salavati M, Aslezaker F, Morteza N, Rezaei Hachesu P. Proprioception in Subjects with Patellofemoral Pain Syndrome: Using the Sense of Force Accuracy. ACTA ACUST UNITED AC 2013. [DOI: 10.3109/10582452.2013.851762] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Difference in knee joint position sense in athletes with and without patellofemoral pain syndrome. Knee Surg Sports Traumatol Arthrosc 2012; 20:2071-76. [PMID: 22203045 DOI: 10.1007/s00167-011-1834-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 12/13/2011] [Indexed: 10/14/2022]
Abstract
PURPOSE The purpose of this study was to evaluate knee joint position sense (JPS) in athletes with patellofemoral pain syndrome (PFPS) and compare it with healthy participants under non-weight bearing (sitting) and weight bearing (standing) conditions. METHODS Twenty patients and 20 healthy athletes participated in this study. JPS was evaluated by active replication of knee angles with visual cues eliminated. Two target angles in sitting and one in standing were tested. Each test and replication was repeated three times. By subtracting the test angle from the replicated angle, the absolute error was calculated as a dependent variable. RESULTS No significant difference in knee JPS was found between groups either in the sitting or in the standing tests. CONCLUSION It seems that PFPS does not affect the knee JPS in athletes. The lack of deficiency in patients could possibly be attributed to their severity of knee pathology, pain intensity and their physical activity level. LEVEL OF EVIDENCE Case-control study, Level III.
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