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Leg and trunk muscle coordination and postural sway during increasingly difficult standing balance tasks in young and older adults

Donath, Lars and Kurz, Eduard and Roth, Ralf and Zahner, Lukas and Faude, Oliver. (2016) Leg and trunk muscle coordination and postural sway during increasingly difficult standing balance tasks in young and older adults. Maturitas, 91. pp. 60-68.

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Official URL: http://edoc.unibas.ch/54165/

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Abstract

Ageing impairs body balance and increases older adults' fall risk. Balance training can improve intrinsic fall risk factors. However, age comparisons of muscle activity responses during balance tasks are lacking. This study investigated relative muscle activity, muscle coordination and postural sway during various recommended static balance training tasks. Muscle activity (%MVC), amplitude ratios (AR) and co-activity (CAI) were determined during standing tasks for 30s (1: double limb stance on a foam surface, eyes open; 2: double limb stance on firm ground, eyes closed; 3: double limb stance, feet in step position on a foam surface, eyes open; 4: double limb stance, feet in step position on firm ground, eyes closed; 5: single limb stance on firm ground, eyes open) in 20 healthy young adults (24±2 y) and 20 older adults (73±6 y). Surface electromyography (SEMG) was applied (SENIAM guidelines) to ankle (tibialis anterior, soleus, medial gastrocnemius, peroneus longus) and thigh (vastus lateralis, vastus medialis, biceps femoris, semitendinosus) muscles (non-dominant leg). Electrodes over trunk (multifidus and internal oblique) muscles were applied bilaterally. Two- to six-fold higher levels of relative muscle activity were found in older adults for ankle (0.0002
Faculties and Departments:03 Faculty of Medicine > Departement Sport, Bewegung und Gesundheit > Bereich Bewegungs- und Trainingswissenschaft > Trainingswissenschaften (Zahner)
UniBasel Contributors:Zahner, Lukas
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:0378-5122
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:05 Oct 2017 10:33
Deposited On:05 Oct 2017 10:33

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