Reproducibility of isokinetic strength assessment of knee muscle actions in adult athletes: Torques and antagonist-agonist ratios derived at the same angle position

Duarte, João P.; Valente‐dos‐Santos, João; Coelho‐e‐Silva, Manuel J.; Sá‐Couto, Pedro; Costa, Daniela; Martinho, Diogo V.; Seabra, André; Cyrino, Edílson Serpeloni; Conde, Jorge; Rosado, Joana; Gonçalves, Rui Soles

doi:10.1371/journal.pone.0202261

Cited by 31 publications

(31 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ICC values obtained in our study ranged from 0.892 (0.718–0.958) for the eccentric right hamstring peak torque to 0.988 (0.967–0.995) for concentric right quadriceps peak torque. This is in line with previously published data, which showed excellent reliability of knee extensors and flexors in a concentric and eccentric manner using both older [ 8 , 11 , 21 ] and the latest types of isokinetic dynamometers [ 5 , 14 , 22 , 23 ]. The absolute percentage difference between test and retest was low and varied between 1% and 4%.…”

Section: Discussionsupporting

confidence: 92%

“…The majority of the older studies evaluated test-retest reliability of knee isokinetic torque only using the intraclass correlation coefficient (ICC) as an indicator of relative reliability. Some older studies using the ICC showed excellent reliability (>0.92) [ 8 , 11 , 13 , 20 , 21 ], while others, mainly more recent studies all demonstrated good (0.89) to excellent (0.98) test-retest reliability of knee flexors and extensors at a velocity 60 °/s [ 5 , 7 , 9 , 14 , 22 , 23 ]. In contrast, only a few studies have also examined the absolute reliability using the standard error of measurement (SEM) and/or the smallest real difference (SRD) for knee peak torque and work [ 5 , 7 , 14 , 19 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reproducibility of isokinetic knee testing using the novel isokinetic SMM iMoment dynamometer

2020

View full text Add to dashboard Cite

Isokinetic dynamometry is the gold standard for testing maximal strength in elite sport and rehabilitation settings. To be clinically useful, such tests should be valid and reliable. Despite some evidence regarding the relative test vs retest reliability of knee dynamometry, there is still a paucity of research regarding the absolute reliability parameters. The purpose of this study was to assess the absolute and relative intra-device reproducibility of isokinetic knee flexion and extension using the novel SMM iMoment dynamometer. A total of 19 participants (13 males and 6 females, aged 24 (2) years, height 178 (9) cm and weight 76 (11) kg) performed two identical knee isokinetic tests with at least a week of rest between measurements. Peak torque of knee extension and flexion were determined at 60°/s. Moderate (0.892) to excellent (0.988) relative reliability using the intraclass correlation coefficient (ICC) was obtained for peak knee torque. Absolute reliability assessed with a standard error of measurement (SEM %) was low, ranging from 2.54% to 6.93%, whereas the smallest real difference (SRD %) was moderate, ranging from 7.04% to 19.22%. Furthermore, there were no significant correlations between means and differences of two measurements, and Bland-Altman plots also showed no signs of heteroscedasticity. Our measurement protocol established the moderate to excellent reliability of the novel SMM iMoment isokinetic dynamometer. Therefore, this dynamometer can be applied in sport rehabilitation settings to measure maximal knee strength.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Reproducibility of isokinetic knee testing using the novel isokinetic SMM iMoment dynamometer

2020

View full text Add to dashboard Cite

show abstract

“…They measured trunk strength by using DLLT, however this method has been criticized for its low validity (Ladeira et al, 2005). As an isokinetic testing is considered the gold standard for measuring dynamic muscle function and strength (Duarte et al, 2018), we additionally investigated the effects of Pilates training on trunk strength by using this method. As a result, trunk flexion PT was significantly increased, and trunk extension PT also tended to be increased after 8 weeks Pilates training in adolescent baseball players.…”

Section: Discussionmentioning

confidence: 99%

Effects of 8-week Pilates training program on hamstring/quadriceps ratio and trunk strength in adolescent baseball players: a pilot case study

Park¹,

Kim²,

Choi³

et al. 2020

J Exerc Rehabil

View full text Add to dashboard Cite

The purpose of this pilot case study is to investigate the effects of Pilates training on hamstring/quadriceps ratio, trunk strength, shoulder strength, and body composition in adolescent baseball players. Eight adolescent baseball players, 15 years of age, participated in Pilates program (supervised training, 50 min per session for three times a week for 8 weeks) using reformer and Cadillac. The intensity of the program was progressively increased by applying beginner level for 1-2 weeks, intermediate level for 3-6 weeks, and advance level for 7-8 weeks. To verify the effect of the Pilates program on hamstring/quadriceps ratio, trunk strength, shoulder strength and body composition, participants performed bioelectrical impedance analysis and isokinetic testing at pre-and posttraining. After the Pilates training, there were significant increases in body weight (P< 0.01), left arm muscle mass (P< 0.01), and trunk muscle mass (P< 0.01). In addition, there were significant increases in left and right knee flexion peak torque (P< 0.01 and P< 0.05, respectively), right knee extension peak torque (P< 0.05), left and right hamstring/quadriceps ratio (both P < 0.01), trunk flexion peak torque (P< 0.05) and shoulder flexion peak torque (P < 0.05) after 8 weeks of training. Therefore, Pilates training increased muscle mass, hamstring/ quadriceps ratio, trunk and shoulder strength, suggesting that it may help baseball players do better performance and prevent future injuries in adolescent players.

show abstract

“…In the present study, the testing was performed at an angular velocity of 60°/s, because this is suggested by the manufacturer for the evaluation of maximum voluntary strength, and has also been recently shown to be useful and valid for assessing maximum muscular strength [11, 27]. Furthermore, this study assessed isokinetic strength and related it to the weight of the patient (Nm/kg), because strength in most muscle groups has been proven to be related not only to age and height, but also to body mass [14].…”

Section: Discussionmentioning

confidence: 99%

Functional outcome after recurrent patellar dislocation

Kéilani

Palma

Crevenna

et al. 2019

Wien Klin Wochenschr

View full text Add to dashboard Cite

SummaryBackgroundThere is no final consensus regarding the ideal surgical technique for the treatment of patellar dislocation. The aim of this retrospective pilot study was to describe muscle strength, body composition, self-reported physical performance, and pain in male patients after patellar dislocation treatment with two different surgical techniques: medial patellofemoral ligament (MPFL) reconstruction vs. the Elmslie-Trillat procedure.MethodsIsokinetic testing of knee extensor muscles was performed using a Biodex System 3 pro dynamometer at an angular velocity of 60°/s. Body composition was measured with bioelectrical impedance analysis (Nutribox). Self-reported physical performance and pain were assessed by the SF-36 subscales of physical functioning, role physical and bodily pain. The outcome variables of peak torque normalized to participant’s body mass (Nm/kg), lean body mass, phase angle, self-reported physical performance, and pain were compared between the study groups.ResultsOf the 12 included male patients, 6 had been treated with MPFL reconstruction (age: median = 33 years, range = 18–38 years; BMI: median = 26 kg/m2, range = 23–29) and 6 with the Elmslie-Trillat procedure (age: median = 26 years, range = 19–32 years; BMI: median = 23 kg/m2, range = 19–28). No statistically significant differences were found between the groups in any outcome parameter of muscle strength, body composition, self-reported physical performance, or pain.ConclusionsThe results of the present pilot study revealed that MPFL reconstruction shows equal results to the Elmslie-Trillat procedure, with respect to isokinetic knee muscle strength, body composition, self-reported physical performance and pain in male patients suffering from recurrent patellar dislocation.

show abstract

Reproducibility of isokinetic strength assessment of knee muscle actions in adult athletes: Torques and antagonist-agonist ratios derived at the same angle position

Cited by 31 publications

References 23 publications

Reproducibility of isokinetic knee testing using the novel isokinetic SMM iMoment dynamometer

Reproducibility of isokinetic knee testing using the novel isokinetic SMM iMoment dynamometer

Effects of 8-week Pilates training program on hamstring/quadriceps ratio and trunk strength in adolescent baseball players: a pilot case study

Functional outcome after recurrent patellar dislocation

Contact Info

Product

Resources

About