Low-volume Cycling Training Improves Body Composition and Functionality in Older People With Multimorbidity
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 24
- 试验地点
- 2
- 主要终点
- Body weight
研究概览
简要总结
INTRODUCTION: Physical exercise, when practiced regularly and in adequate doses, is a proven nonpharmacological measure that helps to prevent and reverse noncommunicable diseases, as well as reduce mortality rates from any cause. In general, older adults perform insufficient physical activity and do not meet the doses recommended by the World Health Organization for the improvement of health through physical activity.
OBJECTIVE: Our main aim will be to evaluate the effect of a 6-week intervention on health-related outcomes (body composition, hemodynamic and functionality changes) in 24 individuals aged 65 and older with multimorbidity.
METHODS AND ANALYSIS: The study was a 2 x 2 randomized controlled trial using a two-group design (exercise vs. control) and two repeated measures (pre- vs. postintervention). The intervention (on the MOTOmed Muvi) will consist of a very low volume (60 minutes per week) of low-to-moderate intensity exercise training to assess body composition evaluation, hemodynamic parameter evaluation and functional evaluation. Participants will be recruited at the Gerontological Complex La Milagrosa (A Coruña, Spain), consisting of a daycare center and a nursing home.
For the statistical analysis, nonparametric ANOVA type statistics and mixed models for repeated measures will be used.
详细描述
INTRODUCTION. Aging is a risk factor for most chronic diseases, and the presence of more than two diseases (i.e., multimorbidity), which is frequent in almost two out of three older adults, has been related to an increased risk of disability and frailty, a decrease in quality of life, and mortality. Physical activity (PA) acts as a nonpharmacological intervention and regular physical activity (rPA) reduces rates of all-cause mortality, compresses morbidity, decreases healthcare costs, and has relatively minimal adverse effects compared to drugs. It has been estimated that 27.5% of the world's population in 2016 did not meet the recommendations established for the member states of the World Health Organization (WHO) for health-enhancing physical activity. Furthermore, recent studies showed that moderate-intensity physical activity may be sufficient for reducing the risk of all-cause dementia and that some of the protective benefits of physical activity for older adults. It seems indispensable to study adequate doses of exercise for older people who often have low levels of physical activity and fitness, who spend a large amount of time sitting down, and whose multimorbidity keeps them away from exercising.
OBJECTIVE
To study the effects of perception-regulated low-volume and low-to-moderate intensity training on body composition, hemodynamic parameters, and functional performance in older adults with multimorbidity.
MATERIAL AND METHODS
The study is a 2 x 2 randomized controlled trial using a two-group design (exercise vs. control) and two repeated measures (pre- vs. postintervention). The exercise group is requested to accomplish on the MOTOmed Muvi, a low volume (i.e., 20 minutes, 3 days per week) and low-to-moderate intensity combining upper and lower limb recumbent cycling training for six weeks. Participants are evaluated to examine the changes in body composition, functional performance, and resting cardiovascular state. Furthermore, participants are monitored physiologically during each session (HR and blood pressure) to control any possible adverse effects. Participants are recruited at the Gerontological Complex La Milagrosa (A Coruña, Spain), consisting of a daycare center and a nursing home. 24 participants will be recruited and randomly placed into two groups: the exercise group (EG, n=12) and the control group (CG, n=12). A stratified permuted block randomization is employed that accounted for the GDS score, sex, and type of institutionalization.
DATA ANALYSIS AND STATISTICS: Data will be presented as the median and interquartile range for ordinal variables and the estimated marginal mean ± standard deviation (SD) for continuous variables. The effect of the intervention will be analyzed employing nparLD (nonparametric analysis of longitudinal data in factorial experiments) from the R software package. Changes within and between groups will be analyzed by employing mixed models for repeated measures designs with the module GAMLj, which uses the R formulation of random effects as implemented by the lme4 R package in Jamovi software.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 65 Years 至 —（Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Body weight
时间窗: 6 weeks
Body composition evaluation by Bioimpedance analysis (Inbody 270): body weight (in kg)
Muscle mass
时间窗: 6 weeks
Body composition evaluation by bioimpedance analysis (Inbody 270): muscle mass (MM, in kg)
Fat mass
时间窗: 6 week
Body composition evaluation by bioimpedance analysis (Inbody 270): fat mass (FM, in kg).
Heart rate
时间窗: 6 weeks
The baseline hemodynamic state is characterized by storing the mean of the three lowest values for thirty seconds of heart rate (HRrest; in BPM, beats per minute) with a finger pulse oximeter.
The Performance-Oriented Mobility Assessment (POMA)
时间窗: 6 weeks
Functional evaluation: The Performance-Oriented Mobility Assessment (i.e., POMA), which measures balance (i.e., POMA-B; scored over 16) and gait performance (i.e., POMA-G; scored over 12) and the total score (i.e., POMA-T; scored over 28). A lower score implies a higher risk of falling. 25-28= low fall risk; 19-24= medium fall risk; and \<19= high fall risk.
Fat mass percentage
时间窗: 6 week
Body composition evaluation by bioimpedance analysis (Inbody 270): fat mass percentage.
Mean blood pressure
时间窗: 6 weeks
Mean blood pressure (MBPrest, in mm Hg) is calculated as follows: MBP=DBP+1/3 (SBP-DBP)
The Short Physical Performance Battery test (SPPB)
时间窗: 6 weeks
Functional evaluation: The Short Physical Performance Battery test (i.e., SPPB) to evaluate the time spent to complete three components: 1. three balance tasks (i.e., SPPB-B): side-by-side stand, semi-tandem stand, and tandem stand 2. gait speed test; walk 4 meters at a comfortable speed (i.e., SPPB-G) 3. chair stand test; sit-to-stand 5 times from a chair (i.e., SPPB-ChS). Each component is scored out of 4, giving a maximum of 12 and a minimum of 0. A higher score implies better function and lower fall rate.
Chair Sit-and-Reach Test (CSR)
时间窗: 6 weeks
Functional evaluation: Chair Sit-and-Reach Test (CSR) to measure lower body flexibility. The score (in cm) is the most distant point reached with the fingertips. Lower distances implies lower flexibility.
Waist circumference
时间窗: 6 weeks
Waist circumference (WC, cm) is taken at end tidal using a measuring tape to the nearest 0.1 cm, midway between the lowest rib and the iliac crest, which corresponded with the level of the umbilicus.
Diastolic blood pressure
时间窗: 6 weeks
Blood pressure (mm Hg) by the auscultator method using a properly calibrated mercury column sphygmomanometer flexible cuff of the appropriate size and a stethoscope.Three diastolic blood pressure (DBPrest) measurements are recorded at 1-minute intervals.
Frailty
时间窗: 6 weeks
Functional evaluation: Frailty assessed by Fried et al. (2001) phenotype, consisting of five components: unintentional weight loss, self-reported exhaustion, weakness (grip strength), slow walking speed, and low physical activity. Individuals are classified as robust (zero positive components), pre-frail (one or two positive components) and frail (three or more positive components).
Systolic blood pressure
时间窗: 6 weeks
Blood pressure (mm Hg) by the auscultator method using a properly calibrated mercury column sphygmomanometer flexible cuff of the appropriate size and a stethoscope. Three systolic (SBPrest) measurements are recorded at 1-minute intervals.
次要结局
未报告次要终点
研究者
José Carlos Millán Calenti
Full Professor
Universidade da Coruña