The impact of exercise frequency from training tongue strength in healthy older adults.

ISRCTN ISRCTN13831900
DOI https://doi.org/10.1186/ISRCTN13831900
Secondary identifying numbers EFTSE1
Submission date
16/04/2019
Registration date
11/06/2019
Last edited
11/06/2019
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Digestive System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

Background and study aims
The tongue plays a crucial role in swallowing. It is the main driving force for pushing the bolus (mixture of food and saliva) from the mouth to the esophagus (food pipe). Decreased tongue strength is shown to contribute significantly to swallowing problems (dysphagia). Dysphagia has a major impact on health care (resulting in pneumonia and the need for feeding tubes) and quality of life. Therefore, the development of successful rehabilitation methods is from major importance. Tongue strength is trainable in a patient-friendly manner, with positive effects from tongue strengthening exercises. A good training program requires an adequate volume of exercise with measurable improvements in combination with a workable degree of effort. Exercise frequency is an important variable of a good training program, since patients and caregivers prefer major improvement with minimized effort. The exercise frequency of most training schemes varies between 3 and 5 times per week. The aim of this study is to compare the gain in tongue strength between training 3 or 5 times per week and to study potential detraining effects 4 and 8 weeks after the training sessions.

Who can participate?
Healthy volunteers without swallowing problems and with a minimum age of 70 years

What does the study involve?
Participants are randomly allocated to tongue strength training either 3 or 5 times per week for 8 weeks. Isolated tongue strength and tongue strength during swallowing are measured at the start of the study, halfway the training program, at the end of the training, and 4 and 8 weeks after finishing the program.

What are the possible benefits and risks of participating?
Benefits from training are an increased functional reserve for tongue strength, observable as increased tongue strength after finishing the protocol. This may avoid/delay the typical symptoms from presbyphagia (swallowing problems in the elderly). There are no risks or side effects of participating in the study.

Where is the study run from?
The study is run from the Antwerp University Hospital, but training sessions are conducted at the patients’ nursing home, supervised by one of the researchers.

When is the study starting and how long is it expected to run for?
September 2015 to June 2016

Who is funding the study?
University Hospital of Antwerp (Belgium)

Who is the main contact?
Mrs Leen Van den Steen
leen.van.den.steen@uza.be

Contact information

Mrs Leen Van den Steen
Public

Wilrijkstraat 10
Edegem
2650
Belgium

ORCiD logoORCID ID 0000-0002-8158-7629
Phone +32 (0)32813441
Email leen.van.den.steen@uza.be

Study information

Study designInterventional single-centre randomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Other
Study typeTreatment
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleTongue strengthening exercises in healthy older adults: effect of exercise frequency. A randomized trial
Study acronymEFTSE
Study hypothesisTraining 3x/week results in a higher gain in tongue strength than training 5x/week.
Ethics approval(s)Approved 14/07/2014, Ethical Committee of the Antwerp University Hospital (Wilrijkstraat 10, 2650 Edegem; Tel: +32 (0)3 821 35 44; Email: ethisch.comité@uza.be), ref: B300201421549
ConditionTongue strengthening exercise as a form of swallowing rehabilitation
InterventionParticipants were randomly assigned to two different treatment arms. Subjects are assigned to one of the two therapy groups based on a sequence generated by the online randomization tool at www.randomizer.org, following a parallel group design. Clinicians involved in the inclusion procedure are blinded to this assignment by using numbered and sealed envelopes. Per week (7 days), the EX3-group (n=10, 5 males and 5 females) performed 3 sessions of TSE on nonconsecutive days, the EX5-group (n=10, 5 males and 5 females) performed 5 sessions of TSE. Both groups trained for a total of 8 weeks. Training sessions were conducted at the patients’ nursing-home and supervised by one of the researchers. No additional TSE without the researcher present were allowed. Each training session involved 120 tongue-pressure repetitions, 60 anteriorly and 60 posteriorly. TSE were divided into 24 sets of 5 repetitions with 30 seconds rest following each set and with the target level set at 80% of 1RM in order to maintain motivation. A successful repetition was defined as reaching the target level for 3 seconds, using the biofeedback on the LED by the IOPI. A new MIP was determined and correspondent levels of resistance were recalculated every 2 weeks according to the principle of progressive overload.
The Iowa Oral Performance Instrument version 2.3 (IOPI Medical LCC, Redmond, WA USA) was used for MIPA, MIPP, PswalA, and PswalP measurements and for monitoring tongue-palate pressures during training.
MIP and Pswal were measured anteriorly (MIPA, PswalA) and posteriorly (MIPP, PswalP) in both treatment arms. For all strength measurements, the instruction was given to press (MIP) or swallow (Pswal) as hard as possible. The highest pressure obtained over 3 trials for maximum tongue strength was used for MIP and the highest pressure obtained over 3 saliva swallows was used for Pswal. A 3-second time frame per attempt was used to reach maximum values. MIPA, MIPP, PswalA, and PswalP were performed at baseline (BL), after 4 and 8 weeks training (4wT and 8wT) and 4 and 8 weeks after the last training session (4wDT and 8wDT) to document possible detraining effects.
Intervention typeDevice
Pharmaceutical study type(s)
PhasePhase I
Drug / device / biological / vaccine name(s)
Primary outcome measureGain in isolated tongue strength represented by MIP (Maximal Isometric Pressure) measured anteriorly (MIPA) and posteriorly (MIPP) in both treatment arms. For all strength measurements, the instruction was given to press (MIP) as hard as possible. The highest pressure obtained over 3 trials for maximum tongue strength was used for MIP. A 3-second time frame per attempt was used to reach maximum values. MIPA and MIPP were performed at baseline (BL), after 4 and 8 weeks training (4wT and 8wT) and 4 and 8 weeks after the last training session (4wDT and 8wDT) to document possible detraining effects. A margin of 48 hours was tolerated for all described time points to accommodate for rescheduling.
Secondary outcome measuresGain in tongue strength during swallowing represented by Pswal measured anteriorly (PswalA) and posteriorly (PswalP) in both treatment arms. For all strength measurements, the instruction was given to swallow (saliva) as hard as possible. The highest pressure obtained over 3 trials for maximum tongue strength was used for Pswal. A 3-second time frame per attempt was used to reach maximum values. PswalA and PswalP were performed at baseline (BL), after 4 and 8 weeks training (4wT and 8wT) and 4 and 8 weeks after the last training session (4wDT and 8wDT) to document possible detraining effects. A margin of 48 hours was tolerated for all described time points to accommodate for rescheduling.
Overall study start date01/09/2015
Overall study end date30/06/2016

Eligibility

Participant type(s)Healthy volunteer
Age groupSenior
SexBoth
Target number of participants20
Participant inclusion criteria1. Minimum age 70 years
2. Living in nursing home
3. Belgian origin
4. Dutch native speaker
5. MIPP and MIPP within normative data
Participant exclusion criteria1. Cognitive deficit (MMSE-score > 24)
2. Dysphagia (Yale Swallowing Protocol)
Recruitment start date01/10/2015
Recruitment end date01/05/2016

Locations

Countries of recruitment

  • Belgium

Study participating centre

Antwerp University Hospital
Wilrijkstraat 10
Edegem
2650
Belgium

Sponsor information

University Hospital of Antwerp
Hospital/treatment centre

Wilrijkstraat 10
edegem
2650
Belgium

Phone +32 (0)38213441
Email leen.van.den.steen@uza.be
ROR logo "ROR" https://ror.org/01hwamj44

Funders

Funder type

Hospital/treatment centre

University Hospital of Antwerp

No information available

Results and Publications

Intention to publish date01/06/2019
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planData are collected and analysed, publication is ready (apart from trial registration).
IPD sharing planParticipant level data will be held on an external hard disk locked at the University Hospital of Antwerp. Data may be used in future analyses.

Editorial Notes

25/04/2019: Trial's existence confirmed by ethics committee.