Bench stepping with incremental heights improves muscle volume, strength and functional performance in older women

Remco J. Baggen*, Evelien Van Roie, Sabine M. Verschueren, Stijn Van Driessche, Walter Coudyzer, Jaap H. van Dieën, Christophe Delecluse

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

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Abstract

Aim: Task-specific exercises such as bench stepping can improve functional ability and reduce falling incidents in older adults. However, such exercises are often not optimized to improve muscle volume and force-velocity characteristics. This study determined the effects of a 12-week stepping program using incremental step heights (STEEP), on muscle volume, strength, power, functional ability and balance performance in older women. Methods: Forty-five community-dwelling women (69y ± 4) were randomly assigned to the STEEP group or a non-training CONTROL group. Training intensity was primarily determined by step height, while training volume remained equal. Thigh muscle volume (CT-scan), force-velocity characteristics of the knee extensors (Biodex dynamometer) and functional ability (Short Physical Performance Battery, timed stair ascent, 10-m walk test and countermovement jump height) were determined pre- and post-intervention. In addition, 3D trunk accelerations were recorded at the lower back to assess balance during the Short Physical Performance Battery balance tests. Results: Two-way ANOVA showed that the STEEP program increased thigh muscle volume, knee extensor isometric peak torque, dynamic peak power, unloaded rate of velocity development and improved performance on all functional tests to a greater extent than CONTROL (p <.05), except the countermovement jump. No improvements were found for peak velocity and balance performance (p >.05). Conclusion: Our results indicate that bench step training with incremental step heights simultaneously improves functional ability, thigh muscle volume and force-velocity characteristics of the knee extensors in older women.

Original languageEnglish
Pages (from-to)6-14
Number of pages9
JournalExperimental Gerontology
Volume120
Early online date22 Feb 2019
DOIs
Publication statusPublished - Jun 2019

Keywords

  • Balance
  • Functional training
  • Muscle hypertrophy
  • Sarcopenia
  • Strength training
  • Weight bearing exercise

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