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Completed

NCT Number: NCT04308239

Reactive Balance Training Targeting Both Slip- and Trip-Induced Falls

The goal of this study was to evaluate the effects of reactive balance training (RBT) targeting slipping and tripping on laboratory-induced slips and trips. In an effort to build upon prior work, the present study included: 1) a control group receiving an alternative balance training intervention; 2) separate training and assessment sessions; 3) alternative RBT methods that may be more amenable to work outside the lab compared to prior methods, and 4) older adult participants receiving individualized training to reduce drop-out. The investigators hypothesized that slips after RBT would result in improved reactive balance kinematics, and a lower incidence of falls, compared to either initial slips before any intervention or after a control intervention. The investigators also hypothesized that trips after RBT would result in improved reactive balance kinematics, and a lower incidence of falls, compared to either initial trips before any intervention or after a control intervention. Results were intended to contribute to knowledge regarding the efficacy of alternative methods for RBT, and provide additional evidence regarding its efficacy.

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Key information

Conditions

Age range

60 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Virginia Tech - Department of Industrial and Systems Engineering

Blacksburg, Virginia, 24061, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • pass a medical history and screening administered by a physician that excluded participants with osteoporosis of the lumbar spine or proximal femur as assessed by Dual Energy X-ray Absorptiometry (Lunar iDXA, GE Healthcare, Chicago, IL), or any unstable or progressive medical conditions that could contribute to imbalance or falls

Exclusion criteria

  • smoked
  • were in physical therapy
  • had a self-reported fragility fracture within the last 10 years
  • had an acute lower extremity injury within the last 3 months
  • had lower extremity surgery within the last six months
  • had an ankle arthroplasty
  • had a knee or hip arthroplasty within the last 12 months

Treatment and study plan

Reactive balance training

Behavioral

Participants were exposed to simulated trips and slips under safe, controlled conditions in order to practice their reactive response to these common balance perturbations.

Otago Balance Training

Behavioral

Balance exercises and strength exercises using ankle weights, and were progressively increased as performance improved by increasing ankle weights or the difficulty of the balance exercises (e.g., not holding onto a wall or support).

Primary outcomes

  1. Peak Slip Speed

    Time frame: during week 1, before the intervention that spanned weeks 2 and 3

    highest instantaneous speed of slipping foot during actual slip

  2. Peak Slip Speed

    Time frame: during week 4, after the intervention that spanned weeks 2 and 3

    highest instantaneous speed of slipping foot during actual slip

  3. Trunk Angle at Touchdown After Tripping

    Time frame: during week 1, before the intervention that spanned weeks 2 and 3

    anterior-posterior trunk angle relative to vertical at instant of touchdown of initial recovery step over tripping obstacle

  4. Trunk Angle at Touchdown After Tripping

    Time frame: during week 4, after the intervention that spanned weeks 2 and 3

    anterior-posterior trunk angle relative to vertical at instant of touchdown of initial recovery step over tripping obstacle

Secondary outcomes

  1. Slip Distance

    Time frame: during week 1, before the intervention that spanned weeks 2 and 3

    distance moved by slipping foot during actual slip

  2. Slip Distance

    Time frame: during week 4, after the intervention that spanned weeks 2 and 3

    distance moved by slipping foot during actual slip

  3. Fall Incidence After a Laboratory-induced Slip

    Time frame: during week 1, before the intervention that spanned weeks 2 and 3

    the outcome of each slip was categorized as either a: fall, recovery, or harness-assisted

  4. Fall Incidence After a Laboratory-induced Slip

    Time frame: during week 4, after the intervention that spanned weeks 2 and 3

    the outcome of each slip was categorized as either a: fall, recovery, or harness-assisted

  5. Recovery Step Length After Tripping

    Time frame: during week 1, before the intervention that spanned weeks 2 and 3

    anterior-posterior step distance of first step over tripping obstacle

  6. Recovery Step Length After Tripping

    Time frame: during week 4, after the intervention that spanned weeks 2 and 3

    anterior-posterior step distance of first step over tripping obstacle

  7. Fall Incidence After a Laboratory-induced Trip

    Time frame: during week 1, before the intervention that spanned weeks 2 and 3

    the outcome of each trip was categorized as a: fall, recovery, or harness-assisted

  8. Fall Incidence After a Laboratory-induced Trip

    Time frame: during week 4, after the intervention that spanned weeks 2 and 3

    the outcome of each trip was categorized as a: fall, recovery, or harness-assisted

Sponsors and collaborators

Lead sponsor

Virginia Polytechnic Institute and State University

Other

Registry information

Official study title

Reactive Balance Training Targeting Both Slip- and Trip-Induced Falls Among Older Adults: a Pilot Randomized Controlled Trial

Important dates

Study start
2018
Primary completion
2019
Study completion
2019
First posted
Mar 16, 2020
Registry last updated
May 18, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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