The WATER study: Which AquaTic ExeRcises increase muscle activity and limit pain for people with low back pain?

Stelios G. Psycharakis*, Simon G.S. Coleman, Linda Linton, Stephanie Valentin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Objective
Aquatic exercise therapy is used for the treatment and management of chronic low back pain (CLBP). However, to the authors’ knowledge, no studies to date have compared muscle activity between different aquatic exercises performed by people with CLBP. As such, this study assessed and compared muscle activity, pain, perceived exertion and exercise intensity between different rehabilitative aquatic exercises.

Design
Cross-sectional.

Setting
A 25-m indoor swimming pool within a university building.

Participants
Twenty participants with non-specific CLBP.

Assessment
Twenty-six aquatic exercises in shallow water (1.25-m depth). Muscle activity was quantified bilaterally for the erector spinae, multifidus, gluteus maximus and medius, rectus abdominis, and external and internal obliques.

Main outcomes
Mean and peak muscle activity, pain (visual analogue scale), perceived exertion (Borg scale) and exercise intensity (heart rate).

Results
Hip abduction/adduction and extension/flexion exercises produced higher activity for gluteal muscles. Variations of squat exercises increased the activity of back extensors. Higher abdominal muscle activity was produced with exercises that made use of buoyancy equipment and included leg and trunk movements while floating on the back, and with some proprioceptive and dynamic lower limb exercises. Pain occurrence and intensity were very low, with 17 exercises being pain free.

Conclusions
This study provides evidence on trunk and gluteal muscle activity, pain, intensity and perceived exertion for people with CLBP performing aquatic exercises. The findings may be useful when prescribing exercises for rehabilitation, as physiotherapists seek to implement progression in effort and muscle activity, variation in exercise type, and may wish to target or avoid particular muscles.
Original languageEnglish
Pages (from-to)108-118
Number of pages11
JournalPhysiotherapy
Volume116
Early online date23 Mar 2022
DOIs
Publication statusPublished - 30 Sep 2022

Keywords

  • rehabilitation
  • hydrotherapy
  • physiotherapy
  • musculoskeletal
  • biomechanics

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