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Measuring Shoulder Abduction Strength Using 2 Different Dynamometers: Comprehensive Intrarater and Interrater Reliability and Validity
(2025) Atli, Ecenur; Topaloglu, Mahir; Hoşbay, Zeynep Y.; Razak Özdinçler, Arzu; Fizyoterapi Ve Rehabilitasyon Bölümü
Objective: The purpose of this study is to investigate the intrarater and interrater reliability of handheld dynamometer (HHD) measurements in assessing isometric muscle strength of the shoulder abductors and to compare these results with those obtained using a fixed dynamometer (FD). Methods: The study involved 25 voluntary participants, all over the age of 18, asymptomatic (with no injuries in the upper extremity), and not engaged in overhead sports. The participants were evaluated twice by 2 di!erent testers who were experienced in orthopedic rehabilitation, at 90 degrees of shoulder abduction in the scapular plane. On the first measurement day, Tester 1 performed measurements using both HHD and FD, while on the second measurement day, both testers used only the HHD. A 3- to 7-day interval separated the 2 measurement sessions. Paired-samples t-tests were used to evaluate the systematic bias between the testers. Spearman's rank correlation coe"cient, intraclass correlation coe"cient, standard error of measurement, and minimal detectable change were calculated. The statistical significance level was accepted as P < .05. Results: Data from 22 participants (15 women, 7 men; mean age: 23.00 ± 3.19 years) were analyzed, as 3 individuals did not attend the final assessment. A strong correlation (r=0.772) was found between Tester 1's HHD measurements and FD, while a similarly strong correlation (r=0.748) was observed for Tester 2's HHD measurements. Excellent intrarater reliability (intraclass correlation coe"cient [ICC]=0.941) was found between Tester 1's measurements, and excellent interrater reliability (ICC=0.889) was found between testers. Conclusion: Handheld dynamometer has demonstrated excellent interrater and intrarater reliability and high validity for assessing shoulder abductor muscle strength in research and clinical use. Since the muscle strength of testers using the HHD may influence the results, the FD may be a more appropriate option when the study population is stronger than the testers. Studies involving di!erent clinical populations and testers with varying experience levels are needed to improve the relevance of the results. Level of Evidence: Level III, Diagnostic Study. This record is sourced from MEDLINE/PubMed, a database of the U.S. National Library of Medicine
Mekanik Boyun Ağrılı Bireylerde Alt Ekstremite Posterior Plan Kaslarına Foam Roller İle Uygulanan Miyofasyal Gevşetme Tekniğinin Akut Etkisi
(2021) Alkan, Mirsad; Besen, Kardelen; Coşkunsu, Dilber Karagözoğlu; Güler, Dilara; Fizyoterapi Ve Rehabilitasyon Bölümü
Amaç: Myers tarafından tanımlanan fasyal\rzincirlerden biri olan Süperfisyal arka zincir\r(SAZ) ayak parmaklarından başlayıp supraorbital\rçıkıntıya kadar uzanan fasyal bir\rbanttır. SAZ öne eğilme (fleksiyon) hareketini\rlimitleyen ya da işlev bozukluğunda aşırı\rarkaya eğilme hareketine (ekstansiyon) sebep\rolan, primer olarak sagital planda postürü ve\rhareketi sağlayan başlıca zincirdir. Sağ ve\rsol tarafta olmak üzere iki SAZ vardır ve iki\rtaraf arasında etkileşim olduğundan dolayı\rdengesizliklerin gözlemlenip düzeltilmesi\rgerekir. Bu çalışmada aktif komponentler\rarası etkileşimi değerlendirmek için; Mekanik\rBoyun Ağrılı bireylerde Hamstring ve\rGastroknemius kaslarına uygulayarak Foam\rRoller (FR) Self Miyofasyal Gevşetme (SMG)\rtekniğinin servikal bölge Eklem Hareket\rAçıklığı’na (EHA), ağrıya ve kas kuvvetine\rolan akut etkisi araştırılmıştır.

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