High-intensity Training for Improving Physical Performance of Aged Women

Study Overview
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Brief Summary
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This study evaluates the adaptations on the functional capacity and cardiovascular in elderly after a physical activity program circuit training. The participants were divided into three groups: Circuit training based on high-intensity interval training group (HIICT), Circuit training at moderate intensity group (MICT) and Control group (CG).

Detailed Description
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Three groups of participants (circuit training based on high-intensity interval training, circuit training at moderate intensity and not training group) will enter the study. The intervention will consist of a physical exercise program in day centers. Intensity progression will be encouraged according to the rate of perceived exertion. Progression of exertion will be very hard, extremely hard and maximal exertion for HIT group, and light, somewhat hard and hard for group. Assessment will be undertaken at two-time points: baseline and after 16 weeks of exercise training. Assessment will include VO2 peak, functional capacity, health-related quality of life, cognitive state and daily physical activity.

Official Title
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Effects of High-intensity Interval Circuit Training (HIICT) on the Cardiovascular and Functional Parameters of Aged Women

Conditions
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Aging, Healthy, Cardiovascular Risk Factor, Physical Activity

Intervention / Treatment
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* Other: Experimental: High-intensity interval training group
* Other: Experimental: Moderate-intensity interval training group


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Having 50 - 90 years old. Not suffering chronic heart, respiratory or joint disease, taking medication or having a deteriorated level of mental health that could interfere in carrying out exercise programs. Having 0 or 1 responses positive in the Physical Activity Readiness Questionnaire (ParQ). Only item 6, related to mild vascular diseases. Being physically independent according to the scales Lawton and Brody, and Katz. Exclusion Criteria: Having uncontrolled arterial hypertension. Having practiced during the previous 3 months or practicing at present a similar exercise to the one proposed in the study. Attending sessions less than 80%.

Ages Eligible for Study
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Minimum Age: 50 Years
Maximum Age: 90 Years

Sexes Eligible for Study
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Female

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: Basic Science
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: HIT; MIT; GC
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: High-intensity interval training group<br>Frequency: 2 days/weeks; Intensity: 16-18 Börg/85-100%VO2max; Recovery: Active; Duration: 1 hour. | Other: Experimental: High-intensity interval training group<br>* 16 weeks of High-intensity interval training<br>|
| Experimental: Moderate-intensity interval training group<br>Frequency: 2 days/weeks; Intensity: 12-14 Börg/60-70% VO2max; Recovery: Active; Duration: 1 hour. | Other: Experimental: Moderate-intensity interval training group<br>* 16 weeks of Moderate-intensity interval training<br>|
| No Intervention: Control group<br>Maintain their normal daily activities throughout the sixteen-week experimental period. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Analyses changes in maximum oxygen consumption (VO2max). | A modified Balke treadmill protocol will be used to estimate aerobic capacity (VO2max). | Pre and post after sixteen weeks of intervention | 
| Analyses changes in maximum oxygen consumption (VO2max). | VO2max was assessed using the 6-Minute Walk Test. The participant should walk the longest distance possible in 6 minutes by walking continuously the 42 metres indicated on the floor. It measures the distance in meters | Pre and post after sixteen weeks of intervention | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Analyses changes in heart rate reached in ergometry. | Analyses during modified Balke treadmill protocol | Pre and post after sixteen weeks of intervention | 
| Analyses changes in blood pressure reached in ergometry. | Analyses during modified Balke treadmill protocol | Pre and post after sixteen weeks of intervention | 
| Analyses changes in maximum speed reached in ergometry. | Analyses during modified Balke treadmill protocol | Pre and post after sixteen weeks of intervention | 
| Analyses changes in duration test reached in ergometry. | Analyses during modified Balke treadmill protocol | Pre and post after sixteen weeks of intervention | 
| Analyses changes in fat percentage. | Fat percentage (%) was assessed using bioimpedance analysis (OMROM BF-306). | Pre and post after sixteen weeks of intervention. | 
| Analyses changes in body mass index (BMI). | BMI was assessed using bioimpedance analysis (OMROM BF-306). | Pre and post after sixteen weeks of intervention. | 
| Analyses changes in gait. | Gait was assessed using the Timed Up and Go Test. To stand up from a standard arms chair, walk 3 meters, turn back the cone walk back and sit down to the chair. The time in seconds is record. | Pre and post after sixteen weeks of intervention. | 
| Analyses changes in balance. | Balance was assessed using the One Leg Standing Test. This test consist in maintain one leg stance for as long as possible. The test was considered normal if the one leg standing time reached 30 seconds. | Pre and post after sixteen weeks of intervention. | 
| Analyses changes in lower body strength. | Lower body strength was assessed using the Sit To Stand 30. For the Sit To Stand 30, the participant consist in measures how many repetition the participant can to stand up and sit down during 30 seconds. | Pre and post after sixteen weeks of intervention. | 
| Analyses changes in upper body strength. | Upper body strength was assessed using the Arm Curl Test (30). For this test, the participant consist in measures how many repetition the participant can to curl up and curl down during 30 seconds. | Pre and post after sixteen weeks of intervention. | 
| Analyses changes in maximal handgrip strength. | To measure the amount of strength developed by each hand in kg. | Pre and post after sixteen weeks of intervention. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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High-intensity interval training, Circuit training, Elderly, Functional capacity, VO2 max, Cardiovascular parameters