Strength Training for Chronic Stroke Patients

Completed

Phase N/A Results N/A

Trial Description

The study aims to investigate the effects of strength training on maximal strength, walking ability and neural function in chronic stroke patients. The strength training intervention in this study is different to all previous interventions for stroke patients.
Maximal Strength Training (MST) involves weights of up to 90% of the participants 1 repetition maximum and has a focus on the explosive development of force. This study will use these principles for unilateral leg press and plantarflexion exercises. Only 2 previous studies have investigated high intensity strength training for stroke patients and they used intensities of 80% 1RM. Previous MST interventions have shown large increases in strength, rate of force development and this has transferred to improved walking economy.
The investigators predict that MST will give large increases in strength, improved rate of force development (RFD) and walking economy. The investigators expect that better neural function will account for the improvements. This study could provide evidence for the adoption of a completely different method of strength rehabilitation for stroke survivors.

Conditions

Interventions

  • Maximal Strength Training (MST) Behavioral
    Intervention Desc: Maximal Strength Training (MST) involves weights of up to 90% of the participants 1 repetition maximum and has a focus on the explosive development of force.
  • Maximal strength training Behavioral
    Intervention Desc: Training will be carried out 3 times a week for 8 weeks. Each session will include a warm up, strength training and warm down. The total time will be approximately 1 hour. The training will consist 2 exercises (leg press and plantarflexion). Participants will train each leg individually with 4 sets of 4 repetitions at 90% of the 1 repetition maximum.

Trial Design

  • Masking: Open Label
  • Purpose: Treatment
  • Endpoint: Efficacy Study
  • Intervention: Single Group Assignment

Patient Involvement

Training will be carried out 3 times a week for 8 weeks. Each session will include a warm up, strength training and warm down. The total time will be approximately 1 hour. The training will consist 2 exercises (leg press and plantarflexion). Participants will train each leg individually with 4 sets of 4 repetitions at 90% of the 1 repetition maximum.

Outcomes

Type Measure Time Frame Safety Issue
Primary Unilateral 1 repetition maximum for leg press and plantarflexion
Secondary Rate of force development in unilateral leg press and plantarflexion; Maximal oxygen uptake and walking economy; Timed Up and Go Test; 4 Step Balance Test; V-Wave (using sEMG equipment) of soleus during static plantarflexion; Blood lipid profile; 6 Minute Walk Test; Jump Height of a countermovement jump; SF-36 Quality of life questionnaire, Norwegian version.
Secondary Rate of force development in unilateral leg press and plantarflexion November 2009 - March 2010 No
Secondary Maximal oxygen uptake and walking economy November 2009 - March 2010 No
Secondary Timed Up and Go Test November 2009 - March 2010 No
Secondary 4 Step Balance Test November 2009 - March 2010 No
Secondary V-Wave (using sEMG equipment) of soleus during static plantarflexion November 2009 - March 2010 No
Secondary Blood lipid profile November 2009 - March 2010 No
Secondary 6 Minute Walk Test November 2009 - March 2010 No
Secondary Jump Height of a countermovement jump November 2009 - March 2010 No
Secondary SF-36 Quality of life questionnaire, Norwegian version November 2009 - March 2010 No

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