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Effects of Foot Muscle Strengthening in Daily Activity in Diabetic Neuropathic Patients

Effects of Foot Muscle Strengthening in Daily Activity, Biomechanics and Functionality of Foot and Ankle in Diabetic Polyneuropathy Patients: a Randomized Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02790931
Enrollment
78
Registered
2016-06-06
Start date
2016-08-31
Completion date
2020-12-31
Last updated
2024-12-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetic Neuropathies

Keywords

diabetic foot, therapeutic exercises, foot, preventive care, rehabilitation, Diabetic Neuropathy

Brief summary

The main objective of this trial is to investigate the effects of foot muscle strengthening in daily activity of patients with diabetic neuropathy.

Detailed description

A randomized controlled trial will be performed with 77 patients with diabetic neuropathy. The participants will be randomly assigned into either a control group (recommended foot care by international consensus with no exercises) or an intervention group which will receive 12-week physical therapy exercises, twice a week, under the supervision of a physiotherapist, and twice a week being remotely supervised by a software at home. Every exercise has its own progression depending on the subjects' execution, increasing in intensity and difficulty. The subjects will be evaluated in 5 different moments (Baseline, 6 weeks, 12 weeks, 24 weeks and 1 year follow-up) The hypothesis of this study is that the intervention group will increase daily activity levels, increase self-selected and rapid walking speed, reduce the incidence of plantar ulcers, increase foot health and functionality, improve symptoms, increase tactile and vibration sensitivity, increased passive range of motion, improved quality of life, increased isometric strength of the feet and production of beneficial biomechanical changes during walking compared to the control group after 12 weeks of intervention and follow-up year.

Interventions

OTHERIntervention Group

Patients will receive a physical therapy intervention in groups twice/wk, and using a software twice/ wk for 3 months, for foot and ankle strengthening, stretching and functional training. They must continue to exercise at home twice a week with the software supervision for one year.

Sponsors

University of Sao Paulo General Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Diabetes mellitus type 1 or 2 * Moderate or severe polyneuropathy confirmed with the fuzzy software * Ability to walk independently in the laboratory * Accessibility to electronic devices * Loss of at least 4 degrees of ankle range of motion * Loss of at least 1 degree of force in the clinical scale of the plantar interosseous or lumbrical muscles

Exclusion criteria

* Ulceration not healed for at least 6 months * Hallux amputation or total amputation of the foot * Receiving any physiotherapy intervention or offloading devices * Neurological or orthopedic impairments * Major vascular complications * Severe retinopathy

Design outcomes

Primary

MeasureTime frameDescription
Self Selected Gait Speed12 weeksself selected gait speed shod walking velocity in a walkway
Fast Gait Speed12 weeksFast gait speed shod walking velocity in a walkway
Daily Physical Activity12 weeksCalculate the number of steps per week

Secondary

MeasureTime frameDescription
Neuropathy Symptoms12 weeksScore of the Michigan Neuropathy Screening Instrument questionnaire Michigan Neuropathy Screening Instrument (MNSI)
Foot Health and Functionality12 weeksScore of the Foot Health Status questionnaire - BRAZIL
Foot Strength12 weeksHallux and lesser toes force measured by a pressure plate
Foot and Ankle Kinematics During Gaitbaseline, 12 weeksFoot joints and plantar arch motion, ankle range of motion, and maximum ankle extension and flexion during gait
Ankle and Knee Joint Moments and Power During Gaitbaseline, 12 weeksPeak joint moment and eccentric and concentric power by inverse dynamic calculations
Plantar Ulcers12 monthsNew cases of foot plantar ulcers
Tactile Sensitivity12 weeksEvaluation of the tactile sensitivity of four plantar areas with 10g monofilament
EQ-5D Score12 weeksEQ-5D score of the quality of life of the patient
Vibration Sensitivity12 weeksEvaluation of the vibration sensitivity with tuning fork
Range of Motion12 weeksManual goniometry of the range of motion of flexion and extension of the metatarsophalangeal joint of the hallux and ankle.
Risk Classification of Plantar Ulceration12 weeksScore of the classification of the plantar ulcer risk (IWG diabetic foot)

Countries

Brazil

Participant flow

Pre-assignment details

It was enrolled 78 participants (1 more than the protocol) because the main research intended to keep the number of participants in each group equal.

Participants by arm

ArmCount
Intervention Group
Patients will receive a physical therapy intervention in groups twice/wk, and using a software twice/ wk for 3 months. Intervention Group: Patients will receive a physical therapy intervention in groups twice/wk, and using a software twice/ wk for 3 months, for foot and ankle strengthening, stretching and functional training. They must continue to exercise at home twice a week with the software supervision for one year.
39
Control Group
Patients will not receive any exercise treatment, will not have acess to the software, but they will keep their recommended clinical treatment.
39
Total78

Baseline characteristics

CharacteristicIntervention GroupControl GroupTotal
Age, Continuous61.5 years
STANDARD_DEVIATION 11.7
60.1 years
STANDARD_DEVIATION 8.9
60.8 years
STANDARD_DEVIATION 10.3
Body mass77.3 kg
STANDARD_DEVIATION 14
80.8 kg
STANDARD_DEVIATION 16.4
79 kg
STANDARD_DEVIATION 15.2
Daily physical activity8.092 Total Steps per week
STANDARD_DEVIATION 4.23
7.641 Total Steps per week
STANDARD_DEVIATION 4.087
7.866 Total Steps per week
STANDARD_DEVIATION 4158
Fast gait speed1.5 m/s
STANDARD_DEVIATION 0.2
1.5 m/s
STANDARD_DEVIATION 0.3
1.5 m/s
STANDARD_DEVIATION 0.25
Height1.6 m
STANDARD_DEVIATION 0.08
1.6 m
STANDARD_DEVIATION 0.09
1.6 m
STANDARD_DEVIATION 0.08
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
Brazil
39 participants39 participants78 participants
Self-selected gait speed1.1 m/s
STANDARD_DEVIATION 0.2
1.0 m/s
STANDARD_DEVIATION 0.1
1.0 m/s
STANDARD_DEVIATION 0.15
Sex: Female, Male
Female
22 Participants21 Participants43 Participants
Sex: Female, Male
Male
17 Participants18 Participants35 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 390 / 39
other
Total, other adverse events
0 / 390 / 39
serious
Total, serious adverse events
0 / 390 / 39

Outcome results

Primary

Daily Physical Activity

Calculate the number of steps per week

Time frame: 12 weeks

ArmMeasureValue (MEAN)Dispersion
Intervention GroupDaily Physical Activity8744 number of steps per weekStandard Deviation 810
Control GroupDaily Physical Activity7373 number of steps per weekStandard Deviation 1010
Primary

Fast Gait Speed

Fast gait speed shod walking velocity in a walkway

Time frame: 12 weeks

ArmMeasureValue (MEAN)Dispersion
Intervention GroupFast Gait Speed1.68 m/sStandard Deviation 0.06
Control GroupFast Gait Speed1.49 m/sStandard Deviation 0.06
Primary

Self Selected Gait Speed

self selected gait speed shod walking velocity in a walkway

Time frame: 12 weeks

ArmMeasureValue (MEAN)Dispersion
Intervention GroupSelf Selected Gait Speed1.06 m/sStandard Deviation 0.04
Control GroupSelf Selected Gait Speed1.00 m/sStandard Deviation 0.04
Secondary

Ankle and Knee Joint Moments and Power During Gait

Peak joint moment and eccentric and concentric power by inverse dynamic calculations

Time frame: baseline, 12 weeks

Secondary

EQ-5D Score

EQ-5D score of the quality of life of the patient

Time frame: 12 weeks

Secondary

Foot and Ankle Kinematics During Gait

Foot joints and plantar arch motion, ankle range of motion, and maximum ankle extension and flexion during gait

Time frame: baseline, 12 weeks

Secondary

Foot Health and Functionality

Score of the Foot Health Status questionnaire - BRAZIL

Time frame: 12 weeks

Secondary

Foot Strength

Hallux and lesser toes force measured by a pressure plate

Time frame: 12 weeks

Secondary

Neuropathy Symptoms

Score of the Michigan Neuropathy Screening Instrument questionnaire Michigan Neuropathy Screening Instrument (MNSI)

Time frame: 12 weeks

Secondary

Plantar Ulcers

New cases of foot plantar ulcers

Time frame: 12 months

Secondary

Range of Motion

Manual goniometry of the range of motion of flexion and extension of the metatarsophalangeal joint of the hallux and ankle.

Time frame: 12 weeks

Secondary

Risk Classification of Plantar Ulceration

Score of the classification of the plantar ulcer risk (IWG diabetic foot)

Time frame: 12 weeks

Secondary

Tactile Sensitivity

Evaluation of the tactile sensitivity of four plantar areas with 10g monofilament

Time frame: 12 weeks

Secondary

Vibration Sensitivity

Evaluation of the vibration sensitivity with tuning fork

Time frame: 12 weeks

Source: ClinicalTrials.gov · Data processed: Feb 23, 2026