Knee joint biomechanics in closed-kinetic-chain exercises

2009 ◽  
Vol 12 (6) ◽  
pp. 661-670 ◽  
Author(s):  
M. Adouni ◽  
A. Shirazi-Adl
Keyword(s):  
Knee Joint ◽  
Kinetic Chain ◽  
Joint Biomechanics ◽  
Closed Kinetic Chain

Effect of a Neoprene Sleeve on Knee Joint Position Sense During Sitting Open Kinetic Chain and Supine Closed Kinetic Chain Tests

1998 ◽  
Vol 26 (4) ◽  
pp. 562-566 ◽  
Author(s):  
Trevor B. Birmingham ◽  
John F. Kramer ◽  
J. Tim Inglis ◽  
Colleen A. Mooney ◽  
Lisa J. Murray ◽  
...  
Keyword(s):  
Knee Joint ◽  
Test Performance ◽  
Position Sense ◽  
Joint Position Sense ◽  
Primary Objective ◽  
Future Research ◽  
Joint Position ◽  
Kinetic Chain ◽  
Open Kinetic Chain ◽  
Closed Kinetic Chain

The primary objective of the present study was to compare the effect of a neoprene sleeve on knee joint position sense during a sitting open kinetic chain test and a supine closed kinetic chain test. Young (24 2 years old), healthy subjects (18 men and 18 women) performed knee joint angle replication tests during open kinetic chain knee extension (sitting) and closed kinetic chain leg press (supine with an axial load of 15% body weight) before and after application of a neoprene sleeve over the dominant knee. The improvement in ability to replicate joint angles after application of the sleeve (sleeve effect) was significantly less during the supine closed kinetic chain test (0.3° 1.4°) than during the sitting open kinetic chain test (1.2° 1.1°). The sleeve effect was inversely related to subjects' performance without the sleeve during both the sitting open kinetic chain and supine closed kinetic chain tests, suggesting that some people may derive greater benefit from the sleeve than others. Although the sleeve effects were small, particularly during the supine closed kinetic chain test, 72% of subjects felt that the sleeve improved their overall test performance. Future research is needed to establish the functional relevance of the small sleeve effects observed and to identify the characteristics of people who might derive greatest benefit from sleeve use.

Validity and Reliability of a Digital Inclinometer to Assess Knee Joint-Position Sense in a Closed Kinetic Chain

2017 ◽  
Vol 26 (1) ◽  
Author(s):  
Natalia Romero-Franco ◽  
Juan Antonio Montaño-Munuera ◽  
Pedro Jiménez-Reyes
Keyword(s):  
Knee Joint ◽  
Intraclass Correlation ◽  
Position Sense ◽  
Joint Position Sense ◽  
Joint Position ◽  
Kinetic Chain ◽  
Validity And Reliability ◽  
Digital Inclinometer ◽  
Closed Kinetic Chain ◽  
Very High

Context: Knee joint-position sense (JPS) is a key parameter for optimum performance in many sports but is frequently negatively affected by injuries and/or fatigue during training sessions. Although evaluation of JPS may provide key information to reduce the risk of injury, it often requires expensive and/or complex tools that make monitoring proprioceptive deterioration difficult. Objective: To analyze the validity and reliability of a digital inclinometer to measure knee JPS in a closed kinetic chain (CKC). Design: The validity and intertester and intratester reliability of a digital inclinometer for measuring knee JPS were assessed. Setting: Biomechanics laboratory. Participants: 10 athletes (5 men and 5 women; 26.2 ± 1.3 y, 71.7 ± 12.4 kg; 1.75 ± 0.09 m; 23.5 ± 3.9 kg/m2). Intervention: Knee JPS was measured in a CKC. Main Outcome Measures: Absolute angular error (AAE) of knee JPS in a CKC. Results: Intraclass correlation coefficient (ICC) and standard error of the mean (SEM) were calculated to determine the validity and reliability of the inclinometer. Data showed that the inclinometer had a high level of validity compared with an isokinetic dynamometer (ICC = 1.0, SEM = 1.39, P < .001), and there was very good intra- and intertester reliability for reading the inclinometer (ICC = 1.0, SEM = 0.85, P < .001). Compared with AutoCAD video analysis, inclinometer validity was very high (ICC = 0.980, SEM = 3.46, P < .001) for measuring AAE during knee JPS in a CKC. In addition, the intertester reliability of the inclinometer for obtaining AAE was very high (ICC = .994, SEM = 1.67, P < .001). Conclusion: The inclinometer provides a valid and reliable method for assessing knee JPS in a CKC. Health and sports professionals could take advantage of this tool to monitor proprioceptive deterioration in athletes.

Development of a Dynamic Knee Simulator

2008 ◽  
Author(s):  
Andrew Dauster ◽  
Mohamed Samir Hefzy ◽  
Ethan Hauser ◽  
Philip Nowicki
Keyword(s):  
Knee Joint ◽  
Lower Limb ◽  
Large Range ◽  
Horizontal Position ◽  
Kinetic Chain ◽  
Knee Simulator ◽  
Closed Kinetic Chain ◽  
Analog Systems ◽  
Deep Squat ◽  
Joint Motions

Dynamic knee simulators use muscle analogs to incite motion at the knee joint [1–5]. There is a great variation between simulators in choice of powering of muscle analog systems, what movements are fixed, controlled, or unconstrained, as well as whether or not the system is open or closed kinetic chain. The objective of this work is to develop a portable dynamic knee simulator that allows simulation of knee joint motions when it is maximally flexed during a large range of activities involving the lower limb in both a vertical (e.g. deep squat) as well an horizontal position (e.g. rowing).

Comparison of Open versus Closed Kinetic Chain Test Positions for Measuring Joint Position Sense

1995 ◽  
Vol 4 (3) ◽  
pp. 165-171 ◽  
Author(s):  
Susan B. Andersen ◽  
Donna M. Terwilliger ◽  
Craig R. Denegar
Keyword(s):  
Knee Joint ◽  
Repeated Measures ◽  
Knee Flexion ◽  
Position Sense ◽  
Joint Position Sense ◽  
Joint Position ◽  
Kinetic Chain ◽  
Test Position ◽  
Closed Kinetic Chain ◽  
Open Versus

The purpose of this study was to determine if a difference exists in the reproducibility of knee joint flexion angles in an open versus a closed kinetic chain. Thirty generally healthy subjects (12 males, 18 females; mean age 23.8 years) participated. Subjects actively reproduced small, medium, and large knee flexion angles (with target angles of 15°, 45°, and 75°, respectively) in an open and a closed kinetic chain while being videotaped. Goniometric measurements were taken from the videotape of initial and reproduced joint angles. Data were analyzed using ANOVA with repeated measures on kinetic chain test position and joint angle. Subjects more accurately reproduced knee flexion angles in a closed kinetic chain position. The main effect for angle and the interaction of angle and test position were nonsignificant. The results indicate that knee joint position is more accurately reproduced in closed kinetic chain. Closed kinetic chain testing is also a more functional assessment of joint position sense, and thus closed kinetic chain assessment of lower extremity joint position sense is recommended.

Effects of Calisthenics and Pilates Exercises on Coordination and Proprioception in Adult Women: A Randomized Controlled Trial

2012 ◽  
Vol 21 (3) ◽  
pp. 235-243 ◽  
Author(s):  
Derya Ozer Kaya ◽  
Irem Duzgun ◽  
Gul Baltaci ◽  
Selma Karacan ◽  
Filiz Colakoglu
Keyword(s):  
Outcome Measures ◽  
Repeated Measures ◽  
Controlled Trial ◽  
Exercise Group ◽  
Lower Limbs ◽  
Control Group ◽  
Adult Women ◽  
Kinetic Chain ◽  
Randomized Controlled ◽  
Closed Kinetic Chain

Objective:To assess and compare the effects of 6 mo of Pilates and calisthenics on multijoint coordination and proprioception of the lower limbs at the 3rd and 6th mo of training.Design:Randomized, controlled, assessor-blinded, repeated-measures.Setting:University research laboratory.Participants and Intervention:Healthy, sedentary, female participants age 25–50 y were recruited and randomly divided into 3 groups: a calisthenic exercise group (n = 34, mean age ± SD 40 ± 8 y, body-mass index [BMI] 31.04 ± 4.83 kg/m2), a Pilates exercise group (n = 32, mean age ± SD 37 ± 8 y, BMI 31.04 ± 4.83 kg/m2), and a control group (n = 41, mean age ± SD 41 ± 7 y, BMI 27.09 ± 4.77 kg/m2). The calisthenics and Pilates groups underwent related training programs for 6 mo, while the controls had no specific training.Main Outcome Measures:Coordination and proprioception of the lower extremities with concentric and eccentric performances in the closed kinetic chain assessed with the monitored rehab functional squat system at baseline and at the 3rd and 6th mo of training.Results:For the within-group comparison, coordinative concentric and eccentric deviation values were significantly decreased for both dominant and nondominant lower limbs at pretraining and at the 3rd and 6th mo posttraining in the calisthenics group (P < .05). In contrast, there was no improvement in the Pilates group throughout the training. However, for comparisons between groups, the baseline values of coordinative concentric and eccentric deviations were different in the calisthenics group than in Pilates and the controls (P < .05). There were no differences in the proprioception values of either visible or nonvisible movement in any group throughout the training (P > .05).Conclusions:It seems that calisthenic exercises are more likely to improve coordination of the lower extremity after 3 and 6 mo of training than Pilates exercises. Calisthenic exercises may be useful for individuals who require improved coordination.

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