Exercise Snacks and Muscular Fitness in Sedentary Young Women (ES)
Effects of a 75-Minute Weekly Exercise Snack on Muscular Fitness in Sedentary Young Women
研究概览
详细说明
Sedentary behavior is common among university students and may contribute to reduced physical fitness and lower skeletal muscle function. Exercise snacks are short bouts of physical activity performed repeatedly throughout the day and may offer a time-efficient strategy for interrupting prolonged sitting.
This single-center randomized controlled study was conducted at Chongqing Normal University. Sedentary female university students aged 18 to 25 years were screened for eligibility. Participants completed baseline assessments and were randomly allocated to an exercise snacks group, a regular exercise group, or a control group.
The intervention lasted 8 weeks. The exercise snacks group performed short exercise bouts distributed throughout the day, with a total weekly exercise volume of approximately 75 minutes. The regular exercise group performed exercise three times per week, with each session lasting approximately 25 minutes. Both intervention groups received exercise guidance, reminders, adherence monitoring, and ratings of perceived exertion through the Tizhiyun mobile application. The control group maintained their usual study and lifestyle routines without additional study-prescribed exercise.
Primary outcomes included isokinetic muscle strength, surface electromyography, and mid-thigh isometric pull performance. Secondary outcomes included standing long jump, knee push-ups, and bodyweight squats to exhaustion. Outcome assessments were conducted at baseline and after the 8-week intervention. Adherence, perceived exertion, and exercise-related adverse events were recorded during the study period.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
-
-
Chongqing Municipality
-
Chongqing、Chongqing Municipality、中国、401331
- Chongqing Normal University
-
-
参与标准
资格标准
适合学习的年龄
- 成人
接受健康志愿者
描述
Inclusion Criteria:
- Female university students aged 18 to 25 years.
- Daily sedentary time of at least 8 hours, assessed using a sedentary behavior questionnaire.
- No contraindications to exercise based on the Physical Activity Readiness Questionnaire.
- No regular exercise participation during the previous 3 months.
Exclusion Criteria:
- Clinical conditions that make participation in exercise inappropriate.
- Substantial body weight fluctuation during the previous 3 months.
- Hypertension, cardiovascular or cerebrovascular disease, or use of related medications.
学习计划
研究是如何设计的？
设计细节
- 主要用途：其他
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：Exercise Snacks Group
Participants received the exercise snacks intervention for 8 weeks.
Exercise was accumulated through short bouts distributed across the day, with a total weekly exercise volume of approximately 75 minutes.
Participants completed approximately 11 minutes of exercise on weekdays and 10 minutes on weekends.
Exercise guidance, reminders, adherence monitoring, and ratings of perceived exertion were provided through the Tizhiyun mobile application.
|
Participants performed an 8-week exercise snacks program consisting of short bouts of physical activity distributed across the day.
The program was performed 7 days per week, with approximately 75 minutes of exercise per week.
Participants completed approximately 11 minutes of short exercise on weekdays and 10 minutes on weekends.
Exercise guidance, reminders, adherence monitoring, and ratings of perceived exertion were provided through the Tizhiyun mobile application.
|
|
有源比较器：Regular Exercise Group
Participants received a regular exercise intervention for 8 weeks.
Exercise was completed three times per week, with each session lasting approximately 25 minutes.
|
Participants performed an 8-week regular exercise program.
Exercise sessions were completed three times per week on Monday, Wednesday, and Friday, with each session lasting approximately 25 minutes.
Exercise guidance, reminders, adherence monitoring, and ratings of perceived exertion were provided through the Tizhiyun mobile application.
|
|
无干预：Usual Lifestyle Control Group
Participants maintained their usual study and lifestyle routines during the 8-week study period and did not receive additional study-prescribed exercise.
|
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Isokinetic Muscle Strength
大体时间：Baseline and Week 8
|
Isokinetic muscle strength was assessed using an isokinetic dynamometer during standardized testing.
Change from baseline to post-intervention was evaluated.
|
Baseline and Week 8
|
|
Surface Electromyography Activity
大体时间：Baseline and Week 8
|
Surface electromyographic activity was recorded during standardized muscle strength testing to evaluate neuromuscular activation.
|
Baseline and Week 8
|
|
Mid-Thigh Isometric Pull
大体时间：Baseline and Week 8
|
Maximal force generated during a standardized mid-thigh isometric pull test was assessed to evaluate whole-body isometric strength.
|
Baseline and Week 8
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Standing Long Jump
大体时间：Baseline and Week 8
|
Standing long jump distance was assessed using a standardized test of lower-body explosive performance.
|
Baseline and Week 8
|
|
Knee Push-Ups
大体时间：Baseline and Week 8
|
The number of correctly completed knee push-up repetitions was assessed using a standardized muscular endurance test.
|
Baseline and Week 8
|
|
Bodyweight Squats to Exhaustion
大体时间：Baseline and Week 8
|
The number of correctly completed bodyweight squats performed to volitional exhaustion was assessed as an indicator of lower-body muscular endurance.
|
Baseline and Week 8
|
合作者和调查者
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
计划个人参与者数据 (IPD)
计划共享个人参与者数据 (IPD)？
IPD 计划说明
药物和器械信息、研究文件
研究美国 FDA 监管的药品
研究美国 FDA 监管的设备产品
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.