Cadence and Intensity Across the Adult Lifespan
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 260
- 试验地点
- 1
- 主要终点
- Monitor validation (difference in steps/min compared to observation/hand tallied counts)
研究概览
简要总结
The purpose of this study is to determine and link cadence (the number of steps taken in a minute) to the intensity of physical activity (e.g. low-, moderate- and vigorous-intensity) in adults (21-85 years old). The investigators anticipate that cadence will be a good indicator of exercise intensity. Identifying how cadence relates to activity intensity will allow for physical activity guidelines to be communicated to the public in a manner that is more accessible to the lay person.
详细描述
There will be up to two lab visits for CADENCE-ADULTS participants, all of which will be completed in the Physical Activity and Health Lab at University of Massachusetts Amherst. Participation will include: orientation to the experiment, consent, physical examination and testing. The entire research protocol will last between 3.5-4.5 hrs.
For all participants the first visit will consist of an orientation to the project, screening, informed consent, physical exam and ECG (if necessary, see below), as well as the graded treadmill walking protocol.
Pre-visit:
Prior to coming to the laboratory participants will undergo a phone screening in order to identify interest, outline basic inclusion/exclusion criteria and give a brief description of the study protocol. If interested participants will be scheduled for their first visit and be given the instruction to arrive at the laboratory having observed at least a 4-hour fast.
The reason for required fast is that metabolic responses to exercise are affected by food intake. By fasting for 4 hrs prior to the exercise testing window the investigators insure standardization of metabolic responses to exercise.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 21 Years 至 85 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Adults between ages 21-85 years, able to ambulate on a treadmill (self-report)
排除标准
- •BMI less than 18.5 or more than 40kg/m^2
- •Having smoked tobacco within the past 6 months
- •wheelchair bound, or conditions that prevent normal ambulation
- •Resting systolic blood pressure > 159 mm HG, or diastolic blood pressure > 99 mm HG
- •Hospitalization for mental illness within the past 5 years (for the 41-60 and 61-85 year old cohorts this was change to "within the past 1 year").
- •Any condition/medication that may affect heart rate response to exercise testing.
- •Previous history of, or clinical symptoms or signs of, cardiovascular disease, stroke or transient ischemic attacks, chest pain, unusual dyspnea during physical activity/exercise, severe ankle swelling, or leg pain while walking.
- •Any significant medical condition that may interfere with the study.
- •Previous history of musculoskeletal injuries or problems causing severe pain during physical activity or exercise which interferes with daily activities.
- •Participant has a pacemaker or other implanted medical device (including metal joint replacements).
- •Participant is pregnant.
- •Participant is unable to complete all testing (1 or two sessions, based on risk factors) within a maximal two week period.
- •Individuals wearing a full beard may need to be excluded from the study, as large amounts of facial hair around the mouth and nose interfere with the seal of the device that measures the air you breath. Because of this we are seeking participants that are clean-shaven or with a beard where areas around the nose and mouth are clean-shaven (e.g. goatee).
结局指标
主要结局
Monitor validation (difference in steps/min compared to observation/hand tallied counts)
时间窗: Cross-sectional data; single time point, throughout study, up to 5 years
Compare the ability of different activity monitors to accurately measure cadence
Cadence (steps/min) as assessed by observation (hand tallied counts) of cadence
时间窗: Cross-sectional data; single time point, throughout study, up to 5 years
The identification of cadence value cut-points associated with low, moderate and vigorous activity.
次要结局
未报告次要终点