Age Problems, Sedentary Lifestyle
Conditions
Keywords
Elderly training, Pole walking, Locomotor Rehabilitation Index, Self-selected speed of walking, Recovery
Brief summary
Objective: to assess by means of a randomized clinical trial the effects of eight weeks of Nordic walking and free walking training on quality of life (QoL), static balance, dynamic variability, self-selected walking speed (SWS) and locomotor rehabilitation index (LRI), parameters of pendular mechanism \[external (Wext), internal (Wint) and total mechanical work (Wtot), Recovery (R), Cost of Transport (C)\], Electromyographic parameters (Average signal and co-contraction of the Anterior deltoid (AD), triceps brachii (TB), vastus lateralis (VL), biceps femoris (BF), anterior tibial (AT) and medial gastrocnemius (MG) muscles, heart rate of exercise (HRexercise) - and the rate of perceived exertion (RPE), in sedentary elderly.
Detailed description
Introduction: Considering the increase in the elderly population and their life expectancy, together with the expansion of Nordic walking (NW) interventions as a training method for the elderly, there is a need of preventive studies of RCTs and with methodological good quality approach to enable physical education, health and rehabilitation professionals to make decisions regarding the type, the volume and the intensity of NW exercise in promoting the health of the sedentary elderly. Objectives: The aim of this study is to evaluate, through a randomized clinical trial, the effects of eight weeks of NW and FW training on quality of life (QoL), static balance, dynamic variability, self-selected treadmill walking speed (SSWSTreadmill), Locomotor rehabilitation (LRI) Parameters of Pendular Mechanism (external, internal and total mechanical work -Wext, Wint, Wtot, Recovery -R,Cost of Transport - C), Electromyographic parameters (Average signal and co-contraction of the AD, TB, VL, BF, AT and MG muscles), heart rate of exercise - HRexercise and the rate of perceived exertion (RPE), in sedentary elderly. of sedentary elderly. Experimental Design: Randomized Controlled Clinical Trial (RCT). Study Site: School of Physical Education, Physiotherapy and Dance (ESEFID), Federal University of Rio Grande do Sul Porto Alegre, Rio Grande do Sul, Brazil. Methods: The sample comprised 33 sedentary participants randomly divided into two groups (Nordic walking group and Free walking group who will perform training for 8 weeks.
Interventions
The training period begin for both groups, will be comprised of eight weeks of duration, with frequency of three weekly sessions. Volume (session duration in minutes) and intensity (percentage of the heart rate at second threshold ) were the same for both groups, only differing in the use (NW) or not of the poles (FW). Each session will have of the Initial Part or warming-up, the Main Part and Final Part or cooling-down.
The training period begin for both groups, will be comprised of eight weeks of duration, with frequency of three weekly sessions. Volume (session duration in minutes) and intensity (percentage of the heart rate at second threshold ) were the same for both groups, only differing in the use (NW) or not of the poles (FW). Each session will have of the Initial Part or warming-up, the Main Part and Final Part or cooling-down.
Sponsors
Federal University of Rio Grande do Sul
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
60 Years to 80 Years
Healthy volunteers
Yes
Inclusion criteria
* Sedentary elderly people * Aged between 60 and 80
Exclusion criteria
* Smoking * Show chronic pain or presence of migraine or nausea in daily life; * History of labyrinthitis
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Self-selected walking speed - SSWS | Change from baseline SSWS at 8 weeks | This outcome will be measure through sub-maximal test of walking treadmill, using the portable gas analyser Equipment. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Locomotor rehabilitation index (LRI) | Change from baseline LRI at 8 weeks | This outcome will be measure through of the measure on sub-maximal test of walking treadmill, using the three-dimensional motion analysis system (VICON). |
| Oxygen consumption (VO2) | from baseline to 8 weeks | This outcome will be measure through of the of the walking test on treadmill and too using the portable gas analyzer equipment (units in ml/kg/min). |
| Cost of transport (C) | from baseline to 8 weeks | This outcome will be measured through of the walking test on a treadmill will be collected the oxigem consumption using the portable gas analyzer equipment (measure unit in ml.O2.km). |
| Optimal Walking Speed (OPT) | from baseline to 8 weeks | This outcome will be measure through of the registered image movement analysis using the three-dimensional motion analysis system (VICON) of the walking test on treadmill (unit in km/h) |
| Oxygen Consumption at anaerobic threshold (VO2VT2) | from baseline to 8 weeks | This outcome will be measure through maximal progressive treadmill test, using the portable gas analyser VO2000 equipment. |
| Peak Oxygen Consumption (VO2peak) | from baseline to 8 weeks | This outcome will be measure through maximal progressive treadmill test, using the portable gas analyser VO2000 equipment. |
| Heart Rate at anaerobic threshold (HRVT2) | from baseline to 8 weeks | This outcome will be measure through maximal progressive treadmill test, using a heart rate monitor (POLAR, FT1). |
| Rest Heart Rate (HRrest) | from baseline to 8 weeks | This outcome will be measure using a heart rate monitor (POLAR, FT1). The participants will remain seated in a quiet and controlled temperature room during 15 minutes prior to measurement of the heart rate. |
| Exercise Heart Rate (HRexercise) | from baseline to 8 weeks | This outcome will be measure using a heart rate monitor (POLAR, FT1) measurement of the heart rate of exercise during the walking test on treadmill at different speed. |
| Quality of life (QoL) | Change from baseline QoL at 8 weeks | The quality of life will be estimated using the World Health Organization Quality of Life Project for elderly people (WHOQOL) instrument. |
| Rest Arterial Diastolic Blood Pressure (DBPrest) | Change from baseline DBPrest at 8 weeks | This outcome will be measured through blood pressure ambulatory monitor (Meditech, ABPM-04 equipment). The participants will remain seated in a quiet and controlled temperature room during 15 minutes prior to measurement of the arterial systolic blood pressure. |
| Parameters of Static balance (Amplitude ans Speed of Center of pressure in X, Y and Z axis) | Change from baseline Parameters of Static Balance at 8 weeks | This outcome will be measure through of Static Balance in Force Platform (AMTI) |
| Parameters of Dynamic variability (coefficient of variation (CoV) of Stride length (SL), stride frequency (SF), swing time (ST), and contact time (CT) | Change from baseline Parameters of Dynamic Balance at 8 weeks | This outcome will be measure through of the variability on sub-maximal test of walking treadmill, using the three-dimensional motion analysis system (VICON). |
| Spatial Temporal Parameters (stride frequency, stride length, swing time and contact time) | Change from baseline Spatial Temporal parameters at 8 weeks | This outcome will be measure through of the registered image movement analysis using the three-dimensional motion analysis system (VICON) of the walking test on treadmill at different speed of walking (1,2,3,4 and 5 km/h), 5 minutes at each speed. |
| Parameters of Pendular Mechanism (external, internal and total mechanical work, Wext, Wint and Wtot, respectively, Recovery). | Change from baseline Parameters of Mechanical Work at 8 weeks | This outcome will be measure through of the registered image movement analysis using the three-dimensional motion analysis system (VICON) of the walking test on treadmill at different speed of walking (1,2,3,4 and 5 km/h), 5 minutes at each speed. |
| Other Parameters of Pendular Mechanism (Percentage of congruity (%Cong), instantaneous pendular transduction and Recovery of step, shift phase (PhaseShift). | Change from baseline other Parameters of Pendular Mechanism at 8 weeks | This outcome will be measure through of the registered image movement analysis using the three-dimensional motion analysis system (VICON) of the walking test on treadmill at different speed of walking (1,2,3,4 and 5 km/h), 5 minutes at each speed. |
| Movement Body Center of Mass (BCoM) on X, Y, Z axis | Change from baseline of BCoM at 8 weeks | This outcome will be measure through of the registered image movement analysis using the three-dimensional motion analysis system (VICON) of the walking test on treadmill at different speed of walking (1,2,3,4 and 5 km/h), 5 minutes at each speed. |
| Maximal voluntary contractions (MVC) of the muscles: anterior deltoid (AD), triceps brachii (TB), vastus lateralis (VL), biceps femoris (BF), anterior tibial (AT) and medial gastrocnemius (MG) | Change from baseline MVC at 8 weeks | This outcome will be measured through Measuring the electromyographic activation during treadmill walking tests using the Miotool electromyograph |
| Electromyographic Parameters (mean amplitude of the signal and co-contraction) of the muscles: anterior deltoid (AD), triceps brachii (TB), vastus lateralis (VL), biceps femoris (BF), anterior tibial (AT) and medial gastrocnemius (MG) | Change from baseline Electromyographic parameters at 8 weeks | This outcome will be measured through Measuring the electromyographic activation during treadmill walking tests using an electromyograph |
| Rest Arterial Systolic Blood Pressure (SBPrest) | from baseline to 8 weeks | This outcome will be measured through blood pressure ambulatory monitor (Meditech). The participants will remain seated in a quiet and controlled temperature room during 15 minutes prior to measurement of the arterial systolic blood pressure. |
Countries
Brazil
Outcome results
None listed