Reliability of metatarsophalangeal and ankle joint torque measurements by an innovative device

Man, Hau Chung; Leung, Aaron Kam-Lun; Cheung, Jason Tak-Man; Sterzing, Thorsten

doi:10.1016/j.gaitpost.2016.05.016

Cited by 9 publications

(17 citation statements)

References 30 publications

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“…is procedure was showed to have high within-day and between-day repeatability for ankle and MTP joint stiffness [17]. e ankle and MTP stiffness had high within-day (ankle: ICC = 0.96; MTP: ICC = 0.91) and between-day repeatability (ankle: ICC = 0.96; MTP: ICC = 0.91), respectively [14]. e torque signals were smoothened by digital Butterworth zero-lag low-pass filter in the 4th-order with a cutoff frequency of 30 Hz [14,17].…”

Section: Passive Joint Stiffness Evaluationmentioning

confidence: 98%

“…e ankle and MTP stiffness had high within-day (ankle: ICC = 0.96; MTP: ICC = 0.91) and between-day repeatability (ankle: ICC = 0.96; MTP: ICC = 0.91), respectively [14]. e torque signals were smoothened by digital Butterworth zero-lag low-pass filter in the 4th-order with a cutoff frequency of 30 Hz [14,17]. e actual ankle and MTP joint passive torques were calculated, respectively, by subtracting the torque resistance with the background torque, which was the torque resistance when the empty pedal was swinging in identical motion (Figure 2(a)).…”

Section: Passive Joint Stiffness Evaluationmentioning

confidence: 99%

“…e ankle and MTP joint passive stiffness was measured with a computerized dynamometer (Invention patent ZL 201410299533.4, Figure 1). In brief, the participants seated on a height-adjustable bench such that the ankle, knee, and hip joints of both legs were flexed in 90°as the starting position for both ankle and MTP joint passive stiffness measurements in the sitting position ( Figure 1(a), [14,17]). e alignment in the transverse plane and height were adjusted so that both ankle joint and MTP joint axes aligned to the rotating axis of the dynamometer by the guidance of laser line projection.…”

Section: Passive Joint Stiffness Evaluationmentioning

confidence: 99%

“…To date, most of the commercially available dynamometers (e.g., Biodex and Cybex), which have been used to determine strength and stiffness of the ankle joint in controlled speed and displacement [1], have limitations to use as they are bulky, expensive, and not for small MTP joints [14]. To the best of our knowledge, only manually operated dynamometer devices were recently used to measure the strength and stiffness of toes and determine the role of toe flexor muscles related to performance [6,15,16].…”

Section: Introductionmentioning

confidence: 99%

“…However, these dynamometers did not control the angular speed and displacement of the toe flexion and consider the alignment of the rotating axes to the anatomical of individuals, which might have caused some variations in torque measurements and limit the use of toe stiffness measurement across individuals. To date, Man and his colleagues [17] introduced a computerized ankle and MTP joint stiffness measuring device that has application before and after training treatment because it is reliable, portable, and easy to administer [14].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Sport Type on Metatarsophalangeal and Ankle Joint Stiffness and Hopping Performance

Liu

Lam

Man

et al. 2020

Journal of Healthcare Engineering

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While individual ankle and metatarsophalangeal joint stiffness is related to training intensity and sport performances, sport athletes may develop specific passive joint stiffness among the spectrum from endurance to powerful types of sports. e objective of this study examined whether marathon runners, basketball players, and other sports athletes would demonstrate distinct passive ankle and metatarsophalangeal joint stiffness as well as vertical stiffness. Fifteen marathon runners, nineteen basketball players, and seventeen other sports athletes performed both joint stiffness measurement and single-leg hopping tests. We used a computerized dynamometer to control foot alignment and speed for passive ankle and metatarsophalangeal joint stiffness measurements. We calculated vertical stiffness by body deceleration and body mass displacement during hopping on the force platform. One-way ANOVA was performed to identify the group differences. Bivariate correlation test was also performed among ankle, metatarsophalangeal, and vertical stiffness. e basketball group displayed 13% higher ankle passive stiffness than the other sports players group (P � 0.03). Metatarsophalangeal joint passive stiffness in sitting and standing positions was 23% higher in the basketball group than the runner and other sports athlete groups (P < 0.01). However, there was no significant group differences in metatarsophalangeal joint passive stiffness and vertical stiffness. Significant correlations among all stiffness variables were determined (P < 0.05). ese findings indicate that ankle and metatarsophalangeal joint passive stiffness, rather than vertical leg stiffness, would be in relation to types of sports participation. Ankle and toe strengthening exercises could improve basketball players' performance and prevent injury.

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Section: Passive Joint Stiffness Evaluationmentioning

confidence: 98%

Section: Passive Joint Stiffness Evaluationmentioning

confidence: 99%

Section: Passive Joint Stiffness Evaluationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of Sport Type on Metatarsophalangeal and Ankle Joint Stiffness and Hopping Performance

Liu

Lam

Man

et al. 2020

Journal of Healthcare Engineering

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Test-retest reliability of a clinical foot assessment device for measuring first metatarsophalangeal joint quasi-stiffness

et al. 2020

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Reliability and validity of an enhanced paper grip test; A simple clinical test for assessing lower limb strength

et al. 2020

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Background:The paper-grip-test (PGT) involves pulling a small card from underneath the participant's foot while asking them to grip with their hallux. The PGT is shown to be effective in detecting foot muscle-weakening but its outcome is operator-dependent. To overcome this limitation, an enhanced PGT (EPGT) is proposed that replaces the pass/fail outcome of the PGT with a continuous measurement of the pulling force that is needed to remove the card (EPGT-force).Research question: Is the EPGT-force an accurate, reliable and clinically applicable measurement of strength?Methods: Reliability and clinical applicability were examined in two ways. Firstly, two examiners measured EPGT-force for twenty healthy volunteers in a test/retest set-up. EPGT force was measured using a dynamometer, the hallux grip force was measured using a pressure mat. The clinical applicability of the EPGT was tested in ten people with diabetes. Postural sway was also measured.Results: Interclass correlation coefficients (ICC) revealed excellent inter-rater reliability (ICC>0.75).Intra-rater reliability was excellent for the first examiner (ICC=0.795) and good for the second (ICC=0.703). Linear regression analysis indicated that hallux grip force accounted (on average) for 83%±4% of the variability in EPGT force. This strong relationship between EPGT force and hallux grip force remained when the test was performed in a clinical setting with the latter accounting for 88% in EPGT force variability. Spearman rank order correlation showed that people with diabetes with a higher difference in EPGT force between limbs swayed more.Significance: EPGT force is a reliable and accurate measurement of hallux grip force. Hallux grip force was previously found to be strongly correlated to the strength of all muscle groups of the foot and ankle and to the ability to maintain balance. The proposed EPGT could be used to monitor muscle weakness in clinics for better falls-risk assessment.

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Reliability of metatarsophalangeal and ankle joint torque measurements by an innovative device

Cited by 9 publications

References 30 publications

Influence of Sport Type on Metatarsophalangeal and Ankle Joint Stiffness and Hopping Performance

Influence of Sport Type on Metatarsophalangeal and Ankle Joint Stiffness and Hopping Performance

Test-retest reliability of a clinical foot assessment device for measuring first metatarsophalangeal joint quasi-stiffness

Reliability and validity of an enhanced paper grip test; A simple clinical test for assessing lower limb strength

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