P29 Proximal lower limb strength and balance in chronic ankle instability

ObjectiveDetermine whether impairments in lower limb muscle strength exist in individuals with chronic ankle instability (CAI) compared with uninjured controls.DesignSystematic review with meta-analysis.Data sourceA comprehensive search of PubMed, Cochrane, CINAHL, Web of Science and EMBASE electronic databases from inception to 10 February 2019.Eligibility criteria for selecting studiesCross-sectional and case–control studies were included if they objectively measured lower limb muscle strength in individuals with CAI compared with controls. Risk of bias and quality of included studies were assessed. Data of included studies were extracted, and meta-analysis was conducted where appropriate.Results12 397 unique studies were identified, of which 20 were included and 16 were eligible for meta-analysis. Reviewed studies clearly described the aim/hypothesis and main outcome measure, but most lacked sample size calculation and assessor blinding. Meta-analyses showed individuals with CAI had lower eccentric and concentric evertor strength (30 and 120°/s; Nm; standardised mean difference (SMD) between −0.73 and −0.95), eccentric invertor strength (60 and 120°/s; both Nm and Nm/kg; SMD between −0.61 and −1.37), concentric invertor strength (60 and 120°/s; Nm; SMD=−0.7) and concentric knee extensor strength (SMD=−0.64) compared with control participants. Ankle eccentric dorsiflexor strength was not different between groups. Although pooling was not possible, data from three separate studies indicated that hip flexor, abductor and external rotator strength, but not hip adductor and extensor strength, was lower in individuals with CAI than in control participants.ConclusionIndividuals with CAI have ankle inversion and eversion strength deficits. Our data also point to differences between individuals with CAI and controls in hip and knee strength. These elements of the kinetic chain should be evaluated by clinicians who rehabilitate individuals with CAI.PROSPERO registration numberCRD42016037759.

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Lower Limb Muscle Activity during Reflex Movement in Patients with Chronic Ankle Instability

The Japanese Journal of Ergonomics ◽

10.5100/jje.57.2g3-2 ◽

2021 ◽

Vol 57 (Supplement) ◽

pp. 2G3-2-2G3-2

Author(s):

Seiji SAITO ◽

Takumi OHASHI

Keyword(s):

Lower Limb ◽

Muscle Activity ◽

Ankle Instability ◽

Chronic Ankle Instability ◽

Lower Limb Muscle ◽

Limb Muscle ◽

Reflex Movement

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Acute Effect of Ankle Kinesio™ Taping on Lower-Limb Biomechanics During Single-Legged Drop Landing

Journal of Sport Rehabilitation ◽

10.1123/jsr.2020-0212 ◽

2020 ◽

pp. 1-8

Author(s):

Javad Sarvestan ◽

Alan R. Needle ◽

Peyman Aghaie Ataabadi ◽

Zuzana Kovačíková ◽

Zdeneˇk Svoboda ◽

...

Keyword(s):

Lower Limb ◽

Muscle Activity ◽

College Athletes ◽

Ankle Instability ◽

Dynamic Balance ◽

Chronic Ankle Instability ◽

Medial Gastrocnemius ◽

Ground Contact ◽

Lateral Gastrocnemius ◽

Peroneus Longus

Context: Chronic ankle instability is documented to be followed by a recurrence of giving away episodes due to impairments in mechanical support. The application of ankle Kinesiotaping (KT) as a therapeutic intervention has been increasingly raised among athletes and physiotherapists. Objectives: This study aimed to investigate the impacts of ankle KT on the lower-limb kinematics, kinetics, dynamic balance, and muscle activity of college athletes with chronic ankle instability. Design: A crossover study design. Participants: Twenty-eight college athletes with chronic ankle sprain (11 females and 17 males, 23.46 [2.65] y, 175.36 [11.49] cm, 70.12 [14.11] kg) participated in this study. Setting: The participants executed 3 single-leg drop landings under nontaped and ankle Kinesio-taped conditions. Ankle, knee, and hip kinematics, kinetics, and dynamic balance status and the lateral gastrocnemius, medial gastrocnemius, tibialis anterior, and peroneus longus muscle activity were recorded and analyzed. Results: The application of ankle KT decreased ankle joint range of motion (P = .039) and angular velocities (P = .044) in the sagittal plane, ground reaction force rate of loading (P = .019), and mediolateral time to stability (P = .035). The lateral gastrocnemius (0.002) and peroneus longus (0.046) activity amplitudes also experienced a significant decrease after initial ground contact when the participants’ ankles were taped, while the application of ankle KT resulted in an increase in the peroneus longus (0.014) activity amplitudes before initial ground contact. Conclusions: Ankle lateral supports provided by KT potentially decreases mechanical stresses applied to the lower limbs, aids in dynamic balance, and lowers calf muscle energy consumption; therefore, it could be offered as a suitable supportive means for acute usage in athletes with chronic ankle instability.

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Lower Limb Landing Biomechanics in Subjects with Chronic Ankle Instability

Medicine & Science in Sports & Exercise ◽

10.1249/mss.0000000000000525 ◽

2015 ◽

Vol 47 (6) ◽

pp. 1225-1231 ◽

Cited By ~ 7

Author(s):

Roel De Ridder ◽

Tine Willems ◽

Jos Vanrenterghem ◽

Mark A. Robinson ◽

Philip Roosen

Keyword(s):

Lower Limb ◽

Ankle Instability ◽

Chronic Ankle Instability ◽

Landing Biomechanics

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Effect of Kinesiology Tape on Muscle Activation of Lower Extremity and Ankle Kinesthesia in Individuals With Unilateral Chronic Ankle Instability

Frontiers in Physiology ◽

10.3389/fphys.2021.786584 ◽

2021 ◽

Vol 12 ◽

Author(s):

Lulu Yin ◽

Kun Liu ◽

Chengmei Liu ◽

Xiaodong Feng ◽

Lin Wang

Keyword(s):

Lower Extremity ◽

Lower Limb ◽

Repeated Measures ◽

Muscle Activation ◽

Ankle Instability ◽

Chronic Ankle Instability ◽

Motion Direction ◽

Passive Motion ◽

Significant Difference ◽

Kinesiology Tape

Background: The purpose of the study was to determine the effect of kinesiology tape (KT) on lower limb muscle activation during computerized dynamic posturography (CDP) tasks and ankle kinesthesia in individuals with chronic ankle instability (CAI).Methods: Thirty-five men with CAI participated in this study. The experimental procedure followed a repeated measures design. Muscle activation of lower extremity and ankle kinesthesia of participants were measured using four taping treatments, namely, KT, athletic tape (AT), sham tape (ST), and no tape (NT) in a randomized order. Muscle activation was assessed using surface electromyography (sEMG) synchronized with CDP tests from seven lower extremity muscles of the unstable limb. Ankle kinesthesia was measured by using a threshold to detect the passive motion direction of the unstable ankle. Parameters were analyzed by using a one-way repeated measures ANOVA and followed by pairwise comparisons with a Bonferroni correction.Results: No significant difference was observed among different taping treatments for the majority of parameters during CDP. Except for condition 4 with open eyes, sway-referenced surface, and fixed surround in the sensory organization test (SOT), gastrocnemius medialis root mean square (RMS) was 28.19% lower in AT compared with NT (p = 0.021, 95% CI = 0.002–0.039), while gastrocnemius lateralis RMS was 20.25% lower in AT compared with KT (p = 0.038, 95% CI = 0.000–0.021). In forward-small sudden translation from motor control test (MCT), for peroneal longus (PL), RMS was 24.04% lower in KT compared with ST (p = 0.036, 95% CI = 0.000–0.018). In toes-down sudden rotation from adaption test (ADT), for PL, RMS was 23.41% lower in AT compared with ST (p = 0.015, 95% CI = 0.002–0.027). In addition, no significant difference was observed for a threshold to the detection of passive motion direction among different taping treatments.Conclusion: This study indicated that KT had minimal effect on the muscle activation of the unstable lower limb during static stance, self-initiated, and externally triggered perturbation tasks from CDP and ankle kinesthesia among individuals with CAI, suggesting that the benefit of KT was too small to be clinically worthwhile during application for CAI.

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