Reliability, validity and responsiveness of the Icelandic version of the knee injury and osteoarthritis outcome score (KOOS)

Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn View/Open Allur texti - Full textThe KOOS self-report questionnaire (Knee injury and Osteoarthritis Outcome Score) has 5 sub-scales, assessing knee symptoms and function, and quality of life. It is widely used as it has been found to be a valid and reliable measure. The purpose of this study was to investigate the validity, reliability and responsiveness of the Icelandic translation of KOOS. A total of 145 were recruited for the study and in addition to answering KOOS, knee pain was rated on a visual analog scale (VAS), perception of knee function during activities of daily living on a numerical rating scale, and some were tested with the timed up-and-go test (TUG). Reliability was assessed by observing ICC-values, internal consistency with Cronbach's alpha, and associations between KOOS subscales and other outcome measures with Pearson's correlation coefficient. A one-way ANOVA was used to assess differences between groups of participants with different levels of knee dysfunction. A significant change in all KOOS subscales was found in a group of individuals seeking treatment for their knee dysfunction (p<0.001), while no change was seen in a group reporting stable knee status (ICC-values ranging from 0.825 to 0.930). Cronbach's alpha ranged from 0.726 to 0.966 and significant correlations were found between all KOOS sub-scales and other outcome measures (p<0.001). The results indicate that the Icelandic version of KOOS is a valid and reliable measure that may be used as an outcome measure assessing knee symptoms and function of individuals with knee symptoms and impaired knee function. KOOS-spurningalistinn (Knee injury and Osteoarthritis Outcome Score) hefur 5 undirþætti sem meta einkenni í hné, starfræna færni við athafnir daglegs lífs, íþróttir og tómstundir, auk áhrifa skertrar færni á þátttöku einstaklingsins og lífsgæði. Hann hefur verið þýddur á mörg tungumál og gagnast bæði í klíník og fjölþjóðlegum rannsóknum. Tilgangur þessarar rannsóknar var að meta réttmæti og áreiðanleika íslenskrar þýðingar KOOS-spurningalistans og notagildi kvarðans til að mæla breytingar yfir tíma. Efniviður og aðferðir: Alls svöruðu 145 einstaklingar listanum, og skráðu verki á VAS-kvarða (visual analog scale) og tölulegt mat á færni í hné við daglegar athafnir, auk þess sem hluti þátttakenda framkvæmdi TUG (timed up-and-go) færnipróf. Samræmi við endurteknar mælingar var metið með ICC-gildi, innra réttmæti með Cronbach‘s alpha, og fylgni undirþátta kvarðans við aðrar útkomumælingar var metin með Pearson‘s fylgnistuðli. Þátttakendum var skipt í hópa samkvæmt alvarleika hnékvilla og einþátta ANOVA notuð til að kanna hvort munur fyndist á meðalútkomu milli hópanna. Niðurstöður: Marktæk breyting varð á útkomu allra undirþátta KOOS hjá þeim sem fengu meðferð við hnékvilla sínum (p<0,001), en engin breyting varð milli mælinga hjá einstaklingum með óbreytt ástand í hné (ICC-gildi frá 0,825 til 0,930). Cronbach‘s alpha var á bilinu 0,726 til 0,966 fyrir undirþætti KOOS. Tölfræðileg fylgni fannst milli allra undirþátta KOOS og verkjamats með VAS-kvarða, tölulegs mats á eigin færni í hné og frammistöðu í TUG-prófinu (p<0,001). Ályktun: Niðurstöður rannsóknarinnar benda til þess að íslenska KOOS-spurningalistann megi nota sem klíníska mælingu og í rannsóknum til mats á einstaklingum með margvíslega hnékvilla

The effect of educational and prevention course for music students on subjective body awareness and attitude toward health and prevention

Efst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinnBakgrunnur: Rannsóknir hafa sýnt að allt að 87% tónlistarfólks finna fyrir stoðkerfiseinkennum. Því hefur aukin áhersla verið lögð á að kanna hvaða áhrif forvarnar- og fræðslunámskeið, hönnuð fyrir tónlistarfólk, geta haft á líkamsvitund og hugarfar þátttakenda gagnvart góðri heilsu. Markmið: Að kanna hvaða áhrif þátttaka í heilsueflandi námskeiði hefði á líkamsvitund tónlistarnemenda í Listaháskóla Íslands (LHÍ) og viðhorf þeirra til góðrar heilsu og forvarna. Aðferðir: Lýsandi, framskyggn samanburðarrannsókn. Þátt tóku 23 nemendur úr LHÍ. Þrettán nemendur tóku þátt námskeiðinu „Tónlistarleikfimi“ (námskeiðshópur, NH) og 10 nemendur fengu enga slíka kennslu (samanburðarhópur, SH). Þátttaka fólst í því að svara spurningalista, fyrir og eftir námskeiðið, sem kannaði meðal annars algengi þess að stunda reglulega hreyfingu, upphitun fyrir spilamennsku og forvarnir gegn álagsmeiðslum en einnig huglægt mat á líkamsvitund við tónlistarflutning við mismunandi aðstæður og athafnir daglegs lífs. Niðurstöður: Við upphaf rannsóknar sögðust 74% þátttakenda stunda reglulega hreyfingu og hélst það óbreytt á tímabilinu. Algengi þess að stunda upphitun fyrir spilamennsku jókst hjá NH eftir námskeiðið á meðan það lækkaði hjá SH og var marktækur munur á milli hópanna í lok rannsóknar (p=0,036). Víxlhrif fundust varðandi breytingar á huglægu mati þátttakenda á líkamsstöðu sinni við æfingar (p=0,026), því NH bætti sig marktækt á tímabilinu en SH ekki. Sama mynstur milli hópa skýrði marktæk víxlhrif varðandi breytingar á mati á eigin líkamsstöðu við daglegar athafnir (p=0,004). Ályktanir: Niðurstöðurnar benda til þess að tónlistarnemendur geti haft gagn af forvarnar- og fræðslunámskeiðum. Frekari rannsóknir eru nauðsynlegar til að meta áhrif slíkra námskeiða á nýgengi meiðsla hjá íslensku tónlistarfólki.Background: Studies show high cumulative prevalence of musculoskeletal disorders among musicians, both professional musicians and music students. Increased emphasis is therefore on studying the effectiveness of educational and prevention courses in music schools. Objectives: To investigate the effects of the participation of music students in a prevention and educational course, specially designed for music students, on body awareness and their attitude toward health and prevention strategies. Methods: A prospective descriptive comparative study. Twentythree music students participated in the study. Thirteen students in a prevention education group (PG), which participated in the course and ten students in a comparison group (CG). The participants answered a questionnaire, before and after the course, about the prevalence of regular physical activity, doing warm-up exercises prior to musical performance, engaging in healthpromoting activities and subjective body awareness during musical performance in different situations and during activities of daily living (ADL). Results: Over the study period the PG group increased, while the CG lessened, the amount of warming up prior to music performance. Thereby a statistically significant group difference was found after the course (p=0.036). Significant interactions were seen for group and subjective body awareness scores during practice (p=0.026) and during ADL (p=0.004) where the PG group had significantly higher scores after participating in the course. Conclusions: Participation in a prevention and educational course may be beneficial for music students due to improved subjective body awareness and attitude toward prevention strategies. More studies are needed to investigate the long term effect of such an intervention on the incidence of musicians’ injuries

Gait, function and quadriceps strength after intraarticular hyaluronan injections in patients with symptomatic knee osteoarthritis

Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn View/OpenIntroduction: Knee OA is a common cause of decline in function and is generally associated with joint malalignment and laxity, joint space narrowing, quadriceps weakness, as well as sclerosis and attrition of subchondral bone. Intraarticular (IA) injections of Hyaluronic Acid (HA) are indicated to palliate symptoms and improve function in patients with knee OA. Primary outcome measures in studies on the efficacy of this treatment are largely self reports of pain and function. The purpose of the study was to investigate the effects of HA injections on knee function and sagittal plane kinematics in patients with knee OA. Materials and Methods: Thirteen subjects with symptomatic knee OA and scheduled for 5, weekly, IA injections of HA were recruited. Each subject was tested for baseline data. Posttreatment testing sessions were conducted within 3 weeks of finishing the series of HA and again five months after treatment. Kinematic data were collected at 120 Hz using an eight camera motion analysis system (VICON, Oxford Metrics). Subjects walked along a 10 m walkway at self-selected pace. Ten walking trials were collected and averaged. Knee function was assessed with a knee specific questionnaire (Knee Outcome Survey (KOS)), goniometric range of motion (ROM) measures, a six minute walk (6MW) and a timed stair climbing task. Quadriceps strength was evaluated isometrically at 90° with a KinCom dynamometer (Chattanooga Group, Inc., Chattanooga, TN) and expressed as a ratio of the force output of the involved vs. uninvolved side (Quadriceps Index (QI)). Repeated measures analysis of variance (ANOVA) with pairwise comparisons, multivariate analysis, linear regression analysis and paired t-tests were used to analyze the data. Alpha was set at 0.05. Results: Multivariate analysis of knee flexion angles was used at two stages of weight acceptance; initial contact (IC) and peak knee flexion (PKF) between involved (INV) and uninvolved (UNINV) knees across the three testing times. The analysis showed an interaction between stage of weight acceptance and side (F=18.716; p=0.001). There were significant interlimb differences in knee excursion during weight acceptance (flexion angle from IC to PKF) for the first (5.3°; p=0.005), second (5.2°; p=0.001) and third (5.2°; p=0.001) testing times; the affected knee demonstrating less movement. Excursions of the INV and the UNINV knees did not change across testing times. Multivariate analysis of goniometric total knee ROM between the INV and UNINV knee across testing times showed an interaction by side (F=29.996; p<0.001) but not for testing time. The INV knee’s ROM was on average 8° less than that of the UNINV at the first testing session (p=0.003), 5.2° less at the second (p<0.001) and 7.2° less at the third testing session (p=0.001). Knee ROM of either knee did not change across testing times. Larger knee flexion ROM at baseline predicted greater improvement on KOS scores on the first post-treatment testing session (r2=.540; p=0.004). Larger knee flexion ROM at the first post-treatment predicted greater improvements on KOS scores at the later testing session (r2=.398; p=0.021). Significant within-subjects effects of testing times on KOS scores were found(F=4.65; p=0.02),on 6MW distance (F=12.010; p<0.001) and QI (F=5.903; p=0.013). Discussion: Subjects demonstrated significantly improved function after a series of intra-articular hyaluronan injections as evaluated with the KOS and functional testing. Kinematic interlimb differences were unchanged across testing times despite these improvements. Goniometric measures of total knee range of motion confirmed interlimb differences in available joint ROM. Although subjects demonstrated ample functional ROM, this was not utilized during weight acceptance. The truncated knee flexion may impede the shock absorbing mechanism of the knee and impact the progression of knee OA. While improvements in self reported scores were not maintained at the 5 month evaluation, walking distance continued to improve over time. This indicates that functional improvements persisted despite concurrently increasing symptoms

Validity and reliability of the Icelandic translation and transcultural adaptation of the Prosthetic Mobility Questionnaire in individuals with lower limb amputations

To access publisher's full text version of this article, please click on the hyperlink in Additional Links field or click on the hyperlink at the top of the page marked DownloadAbstract: Background: An evidence-based documentation of an amputee’s mobility is a vital part of the rehabilitation setting as well as in research and in the development of new prosthetic devices. The Prosthetic Mobility Questionnaire (PMQ) has undergone several iterations to reach its current form, successfully addressing the mobility capabilities of a broad spectrum of amputees. Objectives: The aim of this study was to analyze the psychometric properties of an Icelandic translation and transcultural adaptation of the PMQ. Methods: Following standardized procedures of translation, the questionnaire was tested for validity and reliability. Participants (n=28) were transtibial and -femoral amputees recruited from prosthetic clinics or outpatient rehabilitation centers. Reliability of PMQ was tested by analyzing the internal consistency with Cronbach´s alpha. Convergent and discriminant validity were tested using the Spearman´s rank correlation coefficient and the Mann-Whitney test, respectively. Results: The internal consistency was high for the PMQ, indicating a high reliability. Moderate to strong correlation of the PMQ to other measures related to mobility indicate a high convergent validity, and the questionnaire was able to differentiate between age groups and between Medical Functional Classification Levels 2 and 3. Conclusions: This study presents the results of the first Icelandic translated questionnaire with validated transcultural adaptation procedures, specifically designed to address the needs of amputees. This version of the PMQ is a reliable and valid measure for Icelandic speaking amputees and can be used in the realm of the amputee rehabilitation, research, or development of prosthetic devices to evaluate mobility. Keywords: Prosthetic Mobility Questionnaire (PMQ), psychometric properties, lower limb amputation, mobilityÁgrip Bakgrunnur: Áreiðanleg skráning á hreyfifærni einstaklinga sem ganga með gervifót er mikilvægur hluti í endurhæfingu, sem og við rannsóknir og þróun á nýjum stoðtækjum. Prosthetic Mobility Questionnaire (PMQ) var þróaður með það að markmiði að hann gagnist við mat á breiðum hópi fólks með ólíka hreyfigetu eftir aflimun. Markmið: Markmið þessarrar rannsóknar var að meta próffræðilega eiginleika íslenskrar þýðingar á spurningalistanum PMQ. Aðferðir: Staðlaðar aðferðir voru notaðar við þýðingu á þessum lista og í kjölfarið var listinn prófaður til þess að meta áreiðanleika og réttmæti hans. Þátttakendur (n=28) voru einstaklingar sem höfðu undirgengist aflimun fyrir ofan eða neðan hné og voru í reglubundinni þjónustu hjá stoðtækjafræðingi eða í viðhaldsþjálfun Aðsetur rannsakenda: 1Rannsóknarstofa í hreyfivísindum, Læknadeild, Háskóli Íslands, Reykjavik, Ísland. Hringbraut 31, 101 Reykjavík. sími: 00354 525 4004. Stofnanir þar sem rannsóknin var gerð: Össur stoðtækjafyrirtæki, Landspítali Háskólasjúkrahús, Grensásdeild Tengiliður: Anna Lára Ármannsdóttir, Tel. +354 862 2929, [email protected] Vinnutitill: Translation and validity study for Prosthetic Mobility Questionnaire Anna Lára Ármannsdóttir, PT, MSc. 1 Kristín Briem PT, PhD 1 Sjúkraþjálfarinn 11 Ritrýnd grein við endurhæfingarstofnun. Áreiðanleiki var metinn með því að skoða innri samkvæmni með Cronbach´s alpha. Samleitniréttmæti var prófað með Spearman´s rank correlation coefficient og aðgreiniréttmæti með Mann-Whitney prófi. Niðurstöður: Innri stöðugleiki var hár fyrir spurningalistann sem gefur til kynna háan áreiðanleika. Marktæk fylgni á milli PMQ og annarra mæliaðferða sem meta hreyfigetu, sem og geta hans til að aðgreina á milli aldurshópa og á milli flokka „Medical Functional Classification Levels“ 2 og 3 gefur til kynna gott réttmæti. Ályktanir: Þessi rannsókn er sú fyrsta sem notar staðlaðar aðferðir til íslenskrar þýðingar á spurningalista sem er sérstaklega ætlaður þörfum einstaklinga sem misst hafa neðri útlim/útlimi. Niðurstöður á próffræðilegum eiginleikum íslensku þýðingarinnar gefa til kynna að listinn sé bæði réttmætt og áreiðanlegt tæki til að meta hreyfifærni þessa hóps og er hann framlag til endurhæfingar einstaklinga með aflimun sem og til rannsókna og þróunar á stoðtækjum. Lykilorð: Prosthetic Mobility Questionnaire (PMQ), próffræðilegir eiginleikar, aflimun neðri útlima, hreyfifærniThe Icelandic Physical Therapy Associatio

Musculoskeletal ultrasound imaging of proximal and distal hamstrings cross sectional area in individuals with history of anterior cruciate ligament reconstruction

Publisher Copyright: © 2022 The Author(s). Published with license by Taylor & Francis Group, LLC.Background: Ultrasound (US) imaging is used by physical therapists for diagnosis and assessment of musculoskeletal injury and follow-up Purpose: The aim was to identify long-term effects of graft harvesting on hamstrings muscle mass among athletes who had undergone anterior cruciate ligament reconstruction (ACLR). Methods: Twenty-eight participants (ages 18–55) were recruited: 18 with history of ACLR using semitendinosus (ST) autograft and 10 healthy controls. Images of the cross-sectional area (CSA) of ST and biceps femoris (BF) were captured at 30% and 70% of the distance from the ischial tuberosity to the popliteal crease. A mixed model ANOVA was used to identify inter-limb differences in the CSA of ST and BF at each location, for each group Results: Inter-limb differences were found for the CSA of ST but not BF across both locations for the ACLR group, not controls (p < .001). Within the ACLR group, ST atrophy of the injured limb was relatively greater at the distal vs. proximal location (p < .001). Conclusion: US imaging identified selective atrophy of ST on the injured side with no compensatory hypertrophy of BF. Specific rehabilitation may influence muscle mass of medial vs. lateral hamstrings muscle groups after ACLR using a ST graft, and monitored with US imaging.Peer reviewe

Boys demonstrate greater knee frontal moments than girls during the impact phase of cutting maneuvers, despite age-related increases in girls

Funding Information: This study was supported by grants from The Icelandic Research Fund (185359-051). Publisher Copyright: © 2023, The Author(s).Purpose: Anterior cruciate ligament (ACL) injury rate is low among children, but increases during adolescence, especially in girls. Increases in the knee valgus moment within 70 ms of contact with the ground (KFM 0-70) may explain the sex-specific increase in the risk of ACL injury. The purpose of the study was to investigate sex-dependent changes in the KFM 0-70 from pre-adolescence to adolescence during a cutting maneuver (CM). Methods: Kinematic and kinetic data during the CM task, performed before and after physical exertion, were recorded using a motion capture system and a force plate. A total of 293 team handball and soccer players, aged 9–12 years, were recruited. A number of those who continued sports participation (n = 103) returned five years later to repeat the test procedure. Three mixed-model analysis of variance (ANOVA) for repeated measures tests were used to determine the effects of sex and age period on the KFM 0-70 (1: with no adjustment, 2: adjusted for repeated measurements, and 3: additionally adjusted with hip and knee joint frontal plane kinematics). Results: Boys had significantly higher KFM 0-70 than girls at both age periods (p < 0.01 for all models). Girls, not boys, demonstrated significantly increased KFM 0-70 from pre-adolescence to adolescence. Importantly, this was fully explained by kinematic variables. Conclusion: Although the marked increase in KFM 0-70 seen in girls may play a role in their risk of ACL rupture, the higher values demonstrated by boys during CM reflect the complexity of multifactorial biomechanical risk factor analysis. The role of kinematics in mediating the KFM 0-70 provides means for modification of this risk factor, but as boys had higher joint moments, continued investigation into sex-dependent biomechanical risk factors is warranted. Level of evidence: II.Peer reviewe

Don’t Peak Too Early : Evidence for an ACL Injury Prevention Mechanism of the 11+ Program

Funding Information: Research reported in this publication was supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases of the National Institutes of Health (award number R01AR072034). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. This work was also supported by grant R37-HD037985 from the National Institute of Health. This work was supported by the Ice-landic Research Fund, grant numbers 120410021, 903271305, 1203250031, and 185359051. Funding Information: Research reported in this publication was supported by the National Institute of Arthritis and Musculoskeletal and Skin Diseases of the National Institutes of Health (award number R01AR072034). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. This work was also supported by grant R37-HD037985 from the National Institute of Health. This work was supported by the Icelandic Research Fund, grant numbers 120410021, 903271305, 1203250031, and 185359051. Publisher Copyright: © 2022, North American Sports Medicine Institute. All rights reserved.Background The 11+ program prevents anterior cruciate ligament (ACL) injuries in athletes through unknown mechanisms. Purpose The aim of the current study was to evaluate the effects of The 11+ intervention program, performed by female soccer players during a single season, on the frequency of Early Peaks during athletic tasks. Methods Three teams (69 players) of collegiate female soccer athletes (Divisions I and II) were recruited. Two teams (49 players) volunteered to perform The 11+ three times per week for one season (~22 weeks plus three weeks pre-season), and one team (20 players) served as controls. The athletes performed three repetitions of a cutting maneuver, side shuffle direction change, and forwards to backwards running direction change before and after the competitive season and were recorded using marker-based 3D motion capture. Knee valgus moment time series were calculated for each repetition with inverse kinematics and classified as either “Very Early Peak”, “Early Peak” or “other” using cluster analysis. The classification was based timing of the peak relative to the timing of ACL injuries. The effect of the intervention on the frequency of Very Early Peaks and Early Peaks was evaluated with a mixed Poisson regression controlling for the movement task and pre-season frequency. Results The 11+ intervention reduced the frequency of Early Peak knee valgus moment in one intervention team (coefficient =-1.16, p = 0.004), but not the other (coefficient =-0.01, p = 0.977). No effect was observed on the frequency of Very Early Peak knee valgus moment. Conclusions Reduced frequency of knee valgus moment Early Peak during athletic tasks may explain the mechanism by which The 11+ program decreases risk of ACL injury. Prospective studies with a much larger sample size are required to establish a link between Early Peak knee valgus moments and risk of ACL injury. Level of evidence 2b.Peer reviewe

Effect of Sex on Anterior Cruciate Ligament Injury–Related Biomechanics During the Cutting Maneuver in Preadolescent Athletes

Funding One or more of the authors has declared the following potential conflict of interest or source of funding: This study was funded by the Icelandic Centre for Research (Rannís). AOSSM checks author disclosures against the Open Payments Database (OPD). AOSSM has not conducted an independent investigation on the OPD and disclaims any liability or responsibility relating thereto. Publisher Copyright: © The Author(s) 2020.Background: There are 2 movement patterns associated with an anterior cruciate ligament (ACL) injury: dynamic valgus and stiff landing. Although sex-dependent differences have been identified for adults, less is known for preadolescent athletes regarding movement patterns known to load the ACL. Hypothesis: We hypothesized that girls would demonstrate greater vertical ground reaction forces and knee valgus angles. We further hypothesized that the exercise intervention would affect girls more than boys and that this would primarily be demonstrated in less sagittal plane excursions, increased vertical ground reaction forces and knee valgus moments for girls than for boys. Study Design: Controlled laboratory study. Methods: Male and female soccer and handball players (n = 288; age range, 9-12 years) were recruited. A motion capture system synchronized to a force platform was used to record 5 trials of a cutting maneuver before and after a 5-minute fatigue intervention. Linear mixed models were constructed, and analysis of variance was used to analyze differences in outcomes associated with the sex of the athletes. Results: Boys showed greater peak knee valgus moment (0.26 vs 0.22 N·m/kg, respectively; P =.048), peak knee internal rotation moment (–0.13 vs –0.10 N·m/kg, respectively; P =.021), knee rotation excursion (–7.9° vs –6.9°, respectively; P =.014), and knee extension excursion (2.7° vs 1.4°, respectively; P <.001) compared with that in girls. A significant sex × fatigue intervention interaction (F = 7.6; P =.006) was found, which was caused by a greater increase in first peak vertical ground-reaction force (vGRF) from before to after the fatigue intervention for girls (15.3 to 16.0 N/kg) compared with boys (16.4 to 16.5 N/kg). Conclusion: Differences detected for biomechanical factors during the cutting maneuver do not point to a greater ACL injury risk for prepubescent or early pubescent girls than for boys. Nonetheless, girls go on to develop more detrimental movement patterns in adolescence than those in boys in terms of biomechanical risk factors. Clinical Relevance: Early adolescence is a good target age to learn and develop muscular control; balance, strength; flexibility; and jumping, running, and landing control. This time of physical and athletic growth may therefore be an appropriate period to influence biomechanical factors and thereby task execution and the injury risk.Peer reviewe

Réttmæti og áreiðanleiki íslenskrar þýðingar KOS-ADLS; mat á einkennum og færni í hné

Efst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinnBakgrunnur: KOS-ADLS (knee outcome survey – activities of daily living scale) er spurningalisti sem metur einkenni í hné og færnisskerðingar vegna þeirra, og hefur hann verið þýddur á mörg erlend tungumál. Mikilvægt er að þýða góða erlenda spurningalista yfir á íslensku svo hægt sé að nota þá við mat og eftirlit sjúklinga og sem útkomumælingu í innlendum og fjölþjóðlegum rannsóknum. Markmið: Markmið rannsóknarinnar var að kanna réttmæti og áreiðanleika nýlegrar íslenskrar þýðingar KOS-ADLS spurningalistans. Aðferðir: Þátttakendur (n=145) svöruðu listanum, auk þess að meta og skrá með tölulegum kvarða verki og færni í hné við daglegar athafnir. Hluti þátttakenda framkvæmdi einnig TUG (timed-up-and-go) próf. Áreiðanleiki við endurteknar prófanir var metinn með ICC-gildi, innri samkvæmni með alfastuðli Cronbachs, og viðmiðsbundið réttmæti með því að kanna fylgni kvarðans við aðrar mælingar með fylgnistuðli Pearsons. Þátttakendum var skipt í hópa samkvæmt alvarleika hnékvilla og einþátta ANOVA notuð til að kanna hvort munur fyndist á meðalútkomu milli hópanna. Parað t-próf var notað til að meta næmi spurningalistans gagnvart breytingu yfir tíma. Niðurstöður: Ágætur áreiðanleiki fannst við endurteknar prófanir með KOS-ADLS (ICC= 0,95). Alfastuðullinn var 0,94 og tölfræðileg fylgni var milli KOS-ADLS og viðmiðsmælinga (p<0,001). Marktækur munur var á útkomu þriggja hópa með misalvarlega hnékvilla (p<0,001) og marktæk bæting varð á útkomu KOS-ADLS yfir meðferðartímabilið hjá þeim sem hlutu meðferð sjúkraþjálfara (p≤0.002). Ályktun: Niðurstöðum rannsóknarinnar ber saman við birtar greinar af öðrum þýðingum listans og benda til þess að íslenska KOS-ADLS listinn sé réttmætt og áreiðanlegt mælitæki til mats og eftirfylgni fólks með margvíslega hnékvillaBackground: The knee outcome survey – activities of daily living scale (KOS-ADLS) is a 14 item questionnaire; an outcome measures commonly used to assess knee joint impairments. Given its brevity, the questionnaire is a convenient self-report measure often used in clinical research. Translation and adaptation of valid and reliable patient-reported questionnaires is important in patient care, and essential to allow for patient reported data to comprise part of the outcome measures reported in research studies. Objectives: The purpose of this study was to evaluate the validity, reliability and responsiveness of a newly translated Icelandic version of the KOS-ADLS. Mehtods: Participants (n=145) answered the questionnaire, rated and registered pain levels and knee function with numerical scales, and some performed a timed-up-and-go (TUG) functional performance test. Test-retest reliability was evaluated by observing intraclass correlation coefficient (ICC) values, internal consistency with Cronbach’s alpha and associations with other outcome measures with Pearson’s correlation coefficient. Participants were grouped according to severity of their knee condition and ANOVA was used to identify between-groups differences. A paired t-test was used to identify responsiveness for changes over time. Results: The ICC for KOS-ADLS was 0.95, Cronbach’s alpha was 0.94, and KOS-ADLS scores correlated significantly with other outcome measures (p<0.001). Differences in KOS-ADLS scores were identified between the 3 groups (p<0.001), and between scores after a period of treatment (p≤0.002). Conclusion: This translation of the KOS-ADLS is a valid and reliable measure of knee impairments. Results were consistent with previous publications of other translations of this instrument.Þýðingasjóður og Vísindasjóður Félags sjúkraþjálfar

Reliability, validity and responsiveness of the Icelandic version of the knee injury and osteoarthritis outcome score (KOOS)

Neðst á síðunni er hægt að nálgast greinina í heild sinni með því að smella á hlekkinn View/Open Allur texti - Full textThe KOOS self-report questionnaire (Knee injury and Osteoarthritis Outcome Score) has 5 sub-scales, assessing knee symptoms and function, and quality of life. It is widely used as it has been found to be a valid and reliable measure. The purpose of this study was to investigate the validity, reliability and responsiveness of the Icelandic translation of KOOS. A total of 145 were recruited for the study and in addition to answering KOOS, knee pain was rated on a visual analog scale (VAS), perception of knee function during activities of daily living on a numerical rating scale, and some were tested with the timed up-and-go test (TUG). Reliability was assessed by observing ICC-values, internal consistency with Cronbach's alpha, and associations between KOOS subscales and other outcome measures with Pearson's correlation coefficient. A one-way ANOVA was used to assess differences between groups of participants with different levels of knee dysfunction. A significant change in all KOOS subscales was found in a group of individuals seeking treatment for their knee dysfunction (p<0.001), while no change was seen in a group reporting stable knee status (ICC-values ranging from 0.825 to 0.930). Cronbach's alpha ranged from 0.726 to 0.966 and significant correlations were found between all KOOS sub-scales and other outcome measures (p<0.001). The results indicate that the Icelandic version of KOOS is a valid and reliable measure that may be used as an outcome measure assessing knee symptoms and function of individuals with knee symptoms and impaired knee function. KOOS-spurningalistinn (Knee injury and Osteoarthritis Outcome Score) hefur 5 undirþætti sem meta einkenni í hné, starfræna færni við athafnir daglegs lífs, íþróttir og tómstundir, auk áhrifa skertrar færni á þátttöku einstaklingsins og lífsgæði. Hann hefur verið þýddur á mörg tungumál og gagnast bæði í klíník og fjölþjóðlegum rannsóknum. Tilgangur þessarar rannsóknar var að meta réttmæti og áreiðanleika íslenskrar þýðingar KOOS-spurningalistans og notagildi kvarðans til að mæla breytingar yfir tíma. Efniviður og aðferðir: Alls svöruðu 145 einstaklingar listanum, og skráðu verki á VAS-kvarða (visual analog scale) og tölulegt mat á færni í hné við daglegar athafnir, auk þess sem hluti þátttakenda framkvæmdi TUG (timed up-and-go) færnipróf. Samræmi við endurteknar mælingar var metið með ICC-gildi, innra réttmæti með Cronbach‘s alpha, og fylgni undirþátta kvarðans við aðrar útkomumælingar var metin með Pearson‘s fylgnistuðli. Þátttakendum var skipt í hópa samkvæmt alvarleika hnékvilla og einþátta ANOVA notuð til að kanna hvort munur fyndist á meðalútkomu milli hópanna. Niðurstöður: Marktæk breyting varð á útkomu allra undirþátta KOOS hjá þeim sem fengu meðferð við hnékvilla sínum (p<0,001), en engin breyting varð milli mælinga hjá einstaklingum með óbreytt ástand í hné (ICC-gildi frá 0,825 til 0,930). Cronbach‘s alpha var á bilinu 0,726 til 0,966 fyrir undirþætti KOOS. Tölfræðileg fylgni fannst milli allra undirþátta KOOS og verkjamats með VAS-kvarða, tölulegs mats á eigin færni í hné og frammistöðu í TUG-prófinu (p<0,001). Ályktun: Niðurstöður rannsóknarinnar benda til þess að íslenska KOOS-spurningalistann megi nota sem klíníska mælingu og í rannsóknum til mats á einstaklingum með margvíslega hnékvilla