Structural and mechanical properties of the Achilles tendon in senior badminton players: Operated vs. non-injured tendons

Bravo-Sánchez, Alfredo; Abián, Pablo; Jiménez, Fernando; Abián-Vicén, Javier

doi:10.1016/j.clinbiomech.2021.105366

Cited by 24 publications

(19 citation statements)

References 39 publications

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“…Several studies have shown the feasibility of using the MyotonPRO device to monitor the mechanical properties of skeletal muscles in athletes, healthy young and older adults, and individuals with some pathology [ 6 , 7 , 8 ]. These studies analysed muscle mechanical properties using the standard protocol with ten brief mechanical stimuli, and it demonstrated moderate to excellent intra- and inter-evaluator reliability (intra-class correlation coefficients (ICC) ranging from 0.62 to 0.99) [ 5 , 6 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Five-Compressions Protocol as a Valid Myotonometric Method to Assess the Stiffness of the Lower Limbs: A Brief Report

Bravo-Sánchez

Abián

Sánchez-Infante

et al. 2022

IJERPH

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The objective of this study was to evaluate the validity of a short assessment MyotonPRO protocol to measure the stiffness of the superficial muscles and tendons of the lower limbs. The stiffness of the dominant lower limb vastus lateralis (VL), rectus femoris (RF) and patellar tendon (PT) was evaluated in 52 healthy participants (26.9 ± 3.4 years) with two MyotonPRO protocols: the standard protocol (10 mechanical taps) and the short protocol (five mechanical taps). The myotonometry was performed at the midpoint of the length from the upper pole of the patella to the greater trochanter for the VL, and to the anterior superior iliac spine for the RF. The PT was evaluated 1 cm caudal from the inferior pole of the patella. Pearson’s correlation coefficients were calculated to determine the relationships between protocols. The validity of the short protocol was evaluated with Student’s t-test. High positive correlations were observed between the short and standard protocols in the stiffness of the VL (r = 0.959; p < 0.001), the RF (r = 0.967; p < 0.001) and the PT (r = 0.953; p < 0.001) and no differences were found between both protocols in the stiffness assessment of the VL, RF and PT (p > 0.05). Therefore, the five-compressions protocol is a valid protocol for the assessment of lower limb mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Five-Compressions Protocol as a Valid Myotonometric Method to Assess the Stiffness of the Lower Limbs: A Brief Report

Bravo-Sánchez

Abián

Sánchez-Infante

et al. 2022

IJERPH

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“…The elastographic index (EI) of the PT was evaluated in three ROIs (at 25%, at 50% and at 75% of the total length PT; Figure 3 ) and in the same position as in the previous measurement by real-time elastography (LOGIQ E9, GE Healthcare, Milwaukee, WI, USA). This measurement was made following the methodology of previous research [ 24 , 25 , 26 , 27 , 28 ]. The average of the three measurements was stated.…”

Section: Methodsmentioning

confidence: 99%

The Effects of Eccentric Contraction Execution Time on the Properties of the Patellar Tendon

Martínez

Abián

Jiménez

et al. 2022

IJERPH

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The purpose of this study was to assess the effects of eccentric contraction execution time on the morphological and elastic properties of the patellar tendon (PT) in a six-week, single-leg decline squat (SLDS) exercise training program. In addition, the effects of a six-week detraining period on the same variables were evaluated. Fifty participants were randomized into the control group (CG; n = 15), experimental group 1 (EG6s; n = 17; eccentric contraction execution time = 6 s) and experimental group 2 (EG3s; n = 18; eccentric contraction execution time = 3 s). The thickness and elastographic index (EI) in different regions of interest (ROIs) in the PT were measured after 6 weeks of eccentric training using the single-leg decline squat exercise (three sessions per week, 80% of the eccentric one-repetition maximum) and after 6 weeks of detraining. There was an increase in the thickness of the PT in the different ROIs analyzed in both experimental groups at the end of the training period. Especially worth noting was the increase in the thickness of the PT at the proximal level in EG3s (p = 0.001), and the increase at the distal level in EG6s (p = 0.001). On the other hand, there was a reduction in EI in EG6S at the end of the intervention program (p = 0.021), and both experimental groups increased EI in the three regions of interest analyzed after the detraining period (p < 0.01). In conclusion, the execution time of the eccentric contraction in the SLDS exercise determines the anatomical level of the morphological adaptations in the PT. These morphological adaptations are lost after 6 weeks of detraining, producing an increase in tendon stiffness.

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“…10 The ATR incidence is always at a high level in badminton sport, because of a large number of directional lunges, jumping, and landing movements. 11 Evidence has been reported that ATR will cause persistent tendon elongation and it is associated with biomechanical deficits such as decreased plantar flexor muscle strength/volume, decreased ankle joint proprioception, and reduced AT stiffness. 12 The gait abnormalities and functional deficits have been found in the ruptured side compared with the contralateral side and healthy control group.…”

Section: Introductionmentioning

confidence: 99%

Workflow assessing the effect of Achilles tendon rupture on gait function and metatarsal stress: Combined musculoskeletal modeling and finite element analysis

Sun

Song

Cen

et al. 2022

Proc Inst Mech Eng H

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Achilles tendon rupture (ATR) incidence has increased among badminton players in recent years. The foot internal stress was hard to obtain through experimental testing. The purpose of the current research is to develop a methodology that could improve the finite element model derived foot internal stress prediction for ATR clinical and rehabilitation applications. A subject-specific musculoskeletal model was combined with a 3D finite element model to predict the metatarsal stress. The 80% point during the push-off phase of walking was selected for the comparing between injured and uninjured sides. The surgical repaired Achilles tendon (AT) after 12 months was elongated by 5.5% than the uninjured tendon. At 80% point of stance phase, the ankle plantarflexion angle and AT force decreased by 39.6% and 21.9% on the injured side, respectively. The foot inversion degree increased by 22.9% and was accompanied by the redistribution of metatarsals von Mises stress. The stresses on the fourth and fifth metatarsals were increased by 59.5% and 85.9% on the injured side. The workflow is available to assess musculoskeletal disorders and obtain foot internal stress after ATR. The decreased ankle plantar flexor force may be affected by triceps surae muscle atrophy and weakened force transmission ability of elongated AT. The increased von Mises stress on fourth and fifth metatarsals accompanied by higher foot inversion may increase the ankle lateral sprain injury risk.

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Structural and mechanical properties of the Achilles tendon in senior badminton players: Operated vs. non-injured tendons

Cited by 24 publications

References 39 publications

Five-Compressions Protocol as a Valid Myotonometric Method to Assess the Stiffness of the Lower Limbs: A Brief Report

Five-Compressions Protocol as a Valid Myotonometric Method to Assess the Stiffness of the Lower Limbs: A Brief Report

The Effects of Eccentric Contraction Execution Time on the Properties of the Patellar Tendon

Workflow assessing the effect of Achilles tendon rupture on gait function and metatarsal stress: Combined musculoskeletal modeling and finite element analysis

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