Combination of Strength and Sensorimotor Training

Study Overview
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Brief Summary
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AIM: Strengthening and sensorimotor training (e.g with the aim to improve balance) are widely used in rehabilitation. There is little knowledge about the best ways to combine strengthening and sensorimotor training. Therefore, the investigators want to evaluate two types of combinations in healthy participants. Interventions: Group A: 1.) warm-up; 2.) sensorimotor training; 3.) strength training (nine sessions in four weeks) Group B: 1.) warm-up; 2.) one strengthening exercise, followed by a sensorimotor exercise, alternating (nine sessions in four weeks) Tests (Before first training and after four weeks): isokinetic test of knee extensors and flexors (60°/s; 120°/s; 180°/s; 240°/s.) squat jumps and countermovement jumps static balance test on an unstable underground (measured with accelerometer) dynamic balance: star excursion balance test, (a) on stable ground, (b) on unstable ground. Balance tests will be performed (c) in recovered state and (d) fatigue (i.e. after a fatiguing exercise). Hypotheses Group B (alternating sensorimotor and strength exercises) will improve more in the balance tests than Group A (sensorimotor first, strength afterwards). Group B will improve more in the countermovement jump than Group A. There will be no differences in the improvements in the strength, power and squat jump tests between the two groups.

Official Title
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Randomized Controlled Trial of Two Combinations of Strength and Sensorimotor Training: Effects on Strength, Power and Balance

Conditions
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Healthy Subjects

Intervention / Treatment
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* Other: Sensorimotor training first, followed by strength exercises
* Other: Strength exercises and sensorimotor exercises alternated


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Able to perform strength and sensorimotor training At least 18 years old Exclusion Criteria: Injury that does not allow training and testing Illness that does not allow training and testing Pregnancy Pain during exercising

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: A Sensorimotor first<br>In each of nine sessions: first sensorimotor exercises, then strengthening exercises | Other: Sensorimotor training first, followed by strength exercises<br>* nine sessions of one hour duration<br>|
| Experimental: B Sensorimotor & strength alternated<br>In each of nine sessions: Strength and sensorimotor exercises alternated | Other: Strength exercises and sensorimotor exercises alternated<br>* nine sessions of one hour<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in Dynamic Balance measured with the Star Excursion Balance Test |  | From baseline to four weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in height with counter-movement jump |  | From baseline to four weeks | 
| Change in height with squat jump |  | From baseline to four weeks | 
| Change in force development (Nm) in knee extensors and knee flexors |  | From baseline to four weeks | 
| Change in Power knee extensors and knee flexors |  | From baseline to four weeks | 
| Change in Static Balance (single leg stance on unstable ground) |  | From baseline to four weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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sensorimotor training, Strengthening, Balance