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

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

  • Donath L University of Basel, Department of Sport, Exercise and Health, Basel, Switzerland. Electronic address: lars.donath@unibas.ch.
  • Kurz E University of Basel, Department of Sport, Exercise and Health, Basel, Switzerland.
  • Roth R University of Basel, Department of Sport, Exercise and Health, Basel, Switzerland.
  • Zahner L University of Basel, Department of Sport, Exercise and Health, Basel, Switzerland.
  • Faude O University of Basel, Department of Sport, Exercise and Health, Basel, Switzerland.
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  • 2016-07-25
Published in:
  • Maturitas. - 2016
Aging
Amplitude ratios
Balance training
Co-activation
Co-contraction
Elderly
Neuromuscular training
Postural control
Static balance
Accidental Falls
Aged
Aging
Ankle Joint
Cross-Sectional Studies
Electromyography
Female
Humans
Leg
Male
Muscle, Skeletal
Postural Balance
Resistance Training
Young Adult
English 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
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://folia.unifr.ch/global/documents/149919
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