Postural strategy to keep balance on the seesaw

Almeida, Gil Lúcio; Carvalho, Regiane Luz; Talis, V. L.

doi:10.1016/j.gaitpost.2004.11.020

Cited by 61 publications

(50 citation statements)

References 15 publications

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“…During squat, anterior-posterior ankle stability is mainly dependent on alternating activity of the TA and medial gastrocnemius. [18][19] When the anterior leg moves forward beyond the vertical line, the eccentric contraction of calf muscle is increased while the activity of TA muscle is increased when moving backward during squat exercise. 20 The role of PL muscle is to maintain ankle stability by preventing excessive ankle inversion.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Activities of Tibialis Anterior, Peroneus Longus, and Tibialis Posterior Muscles according to Lunge Squats and Bulgarian Split Squats in a Healthy Population

Kim¹,

Kim²,

Yang³

et al. 2017

J KEMA

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Background Previous studies reported that one-leg squat has various advantages in functional activities, no study has studied the effect of muscle activity on ankle stability. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons. org/licenses/by-nc/4.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.Purpose The purpose of this study was to investigate the differential effects of squat type on the activity of the tibialis anterior, peroneus longus and tibialis posterior muscle for ankle stability.Study design Cross-sectional study. MethodsThe participants were 30 healthy adults. During each squat execution, tibialis anterior, peroneus longus and tibialis posterior muscle activities were assessed using surface electromyography under control of each squat posture. ResultsThe muscle activity of the tibialis anterior and peroneus longus applying Bulgarian split squat was significantly higher than lunge squat. However, the activity of the tibialis posterior showed no significance between squat conditions. Conclusions This study demonstrated that Bulgarian squat was more effective at eliciting ankle dorsiflexor and evertor that are known as important role for ankle stability.Key words Ankle stability; Bulgarian squat; Electromyography; Peroneus longus; Tibialis anterior. Research ReportComparison of Activities of Leg Muscles according to Lunge Squats and Bulgarian Split Squats Journal of KEMA of CAI.11 Previous studies have shown that one leg squat requires more neuromuscular activity due to reduced mediolateral base of support compared to two leg squats. 11-13Increased neuromuscular activity has also been reported to have a positive effect on proprioception and strength in functional activities. [11][12][13] Although many studies have reported that one-leg squat has various advantages in functional activities, no study has studied the effect of muscle activity on ankle stability. Therefore, the objective of this study was to investigate the effect of two types of single-leg squat exercise commonly used in clinical practice for strengthening and rehabilitation of lower limbs on muscles activity of the tibialis anterior (TA), peroneus longus (PL), and tibialis posterior (TP). The hypothesis of this study was that muscle activities of TA, PL, and TP muscles at Bulgarian split squat could be higher than those at lunge squat. METHODSThis study recruited 30 healthy volunteers (15 males, 15 females) who met the selection criteria. Participants were given a detailed explanation of the study procedure. Written informed consent was obtained from each participant. This study was conducted in accordance with principles of the Declaration of Helsinki.Volunteers who were able to maintain single-leg squat posture for longer than 10 s to check shank muscles activity were recruited for this study. Volunteers who had any neurological, musculoskeletal, or cardi...

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Section: Discussionmentioning

confidence: 99%

Comparison of Activities of Tibialis Anterior, Peroneus Longus, and Tibialis Posterior Muscles according to Lunge Squats and Bulgarian Split Squats in a Healthy Population

Kim¹,

Kim²,

Yang³

et al. 2017

J KEMA

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“…Some of them also assumed the effect of vision (Noe et al 2017) and some others utilized a foam surface to limit proprioceptive data (Almeida et al 2006, Carvalho andAlmeida 2009). The present study, however, analyzes the stability indices to investigate the effects of standing on an unstable platform at different levels of stiffness.…”

Section: Introductionmentioning

confidence: 99%

Effects of postural and cognitive difficulty levels on the standing of healthy young males on an unstable platform

Oliaei¹,

Ashtiani²,

Azma³

et al. 2018

Acta Neurobiologiae Experimentalis

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Standing on an unstable platform requires continuous effort of the neuro-musculoskeletal system. The aim of the present study is to evaluate the ability to remain standing on an unstable platform at different levels of postural and cognitive difficulty. Healthy young males stood in the sagittal plane on an unstable platform supported by a pair of springs with modifiable stiffness. The balance test also assessed different levels of vision and cognitive function. Linear and nonlinear metrics of standing, based on motion captured kinematic data, were assessed to analyze the stability of standing. Results showed that vision plays a significant role in maintaining balance in terms of linear metrics. Elimination of visual feedback changed the direction of body sway and increased standing instability. Placement of low stiffness springs led to unstable standing. The cognitive dual task, however, had no effect on the stability metrics and merely could be revealed in the simplest test condition. Standing on an unstable platform was closely related to visual feedback and decreasing the spring stiffness significantly reduced stability. The roles of cognitive involvement were subdued by increasing the postural difficulty in standing on an unstable platform.

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“…The ability to maintain balance during anterior and posterior sway is dependent upon the muscle activation of the anterior tibialis and gastrocnemius medialis muscle [8]. Therefore, it is necessary to increase ankle joint muscle strength and range of motion.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the thickness of the gastrocnemius through ultrasonography during heel-drop exercise performance

Gal¹,

Lee

2016

PTRS

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Objective: This study was aimed to compare the thickness and pennation angle of gastrocnemius through ultrasonography during the heel-drop exercise on ankle dorsiflexion angle. Design: Cross-sectional study. o on a wooden-block of 5.5 cm in height. In each regimen, the subjects completed a session of 100 heel-drop exercises (10 repetitions×10 sets; with 30 seconds rest following each set; with 24 hours rest following each exercise). Before and immediately after each heel-drop exercise, the thickness and pennation angle of gastrocnemius were measured using an ultrasonography. Results: After the performance of the heel drop exercises with ankle dorsiflexed to 0 o , 10 o , and 20 o , the thickness of the gastrocnemius was significantly higher than pre-exercise (p<0.05), and furthermore heel-drop exercise with ankle dorsiflexed to 10 o was significantly higher than exercise with the ankle dorsiflexed to 0 o (p<0.05). However, as for the pennation angle of the gastrocnemius, there were no significant changes after each heel-drop exercise. Conclusions: This finding suggest that the heel-drop exercise with ankle dorsiflexed to 0 o , 10 o , and 20 o is effective on the strengthening of the gastrocnemius. Furthermore, the heel-drop exercise with the ankle dorsiflexed to 10 o is more effective than with the ankle dorsiflexed to 0 o .

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Postural strategy to keep balance on the seesaw

Cited by 61 publications

References 15 publications

Comparison of Activities of Tibialis Anterior, Peroneus Longus, and Tibialis Posterior Muscles according to Lunge Squats and Bulgarian Split Squats in a Healthy Population

Comparison of Activities of Tibialis Anterior, Peroneus Longus, and Tibialis Posterior Muscles according to Lunge Squats and Bulgarian Split Squats in a Healthy Population

Effects of postural and cognitive difficulty levels on the standing of healthy young males on an unstable platform

Comparison of the thickness of the gastrocnemius through ultrasonography during heel-drop exercise performance

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