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临床试验/NCT07064941
NCT07064941进行中(未招募)不适用

Effect of Aerobic Exercise Paired With Strength Conditioning on Bone Health in Patients With Thalassemia

University of California, San Francisco2 个研究点 分布在 1 个国家目标入组 20 人开始时间: 2024年12月1日最近更新:
适应症
干预措施

试验速览

阶段
不适用
状态
进行中(未招募)
入组人数
20
试验地点
2
主要终点
Total Body Lean Mass (grams)

研究概览

简要总结

The goal of this clinical trial is to determine if a weight bearing exercise intervention can improve body composition and bone health in adolescents and adults with Thalassemia.

The main questions it aims to answer are:

  • Does participation in a 12-week weight bearing exercise intervention change total body lean mass and percentage body fat (as assessed by DXA) in adolescents and adults with Thalassemia?
  • Does participation in a 12-week weight bearing exercise intervention change muscle function (assessed by hand grip strength, sit to stand and vertical jump) and endurance (assessed by the 6 minute walk test) in adolescents and adults with Thalassemia?
  • Does participation in a 36 week weight bearing exercise intervention (30 min/day; 5x/week) change bone mineral density as assessed by DXA in adolescents and adults with Thalassemia?

Researchers will compare participants' change in body composition, muscle mass, and muscle function during a "Usual Activity" period (12 weeks) with an exercise intervention (Period 1: 12 weeks) to see if exercise can improve body composition and muscle function.

The intervention will then be extended an additional 24 weeks for a total of 36 weeks of exercise (Period 2) to explore the change in bone mineral density between between "Usual Activity" and "Exercise Intervention" (Period 2) in individuals with Thalassemia.

During the intervention period, participants will engage in a self-directed exercise regime of either weight bearing aerobic exercise or strength training exercises (30 min/day; 5x/week).

研究设计

研究类型
Interventional
分配方式
Na
干预模型
Single Group
主要目的
Treatment
盲法
None

入排标准

年龄范围
14 Years 至 40 Years(Child, Adult)
性别
All
接受健康志愿者

入选标准

  • Age: 14 - 40 years
  • BMD Z-score at any skeletal site < -1.0
  • Diagnosed with thalassemia (any genotype, regardless of transfusion dependency)
  • Vitamin D (25-Hydroxy) drawn within the previous 12 months >20 ng/mL
  • English speaking, able to consent

排除标准

  • Patients who self-identify as 'exercisers' e.g. routinely exercise for minimum of 45 min/day, 5x/week
  • Pregnant (unable to conduct bone density measurements in pregnant females)
  • Hypogonadal, must be on replacement sex hormone therapy for min of 6 months
  • Cardiac T2* by Magnetic Resonance Imaging of <20 ms (e.g. evidence of cardiac iron overload)
  • Recent long bone or vertebral fracture (within the last 6 months)
  • Cognitive impairment limiting ability to understand instructions during orientation
  • Other conditions known to influence bone health or body composition as determined by the investigator
  • Patients at risk for cardiovascular disease yet have not received a routine cardiology assessment within the previous 12 months
  • Bone medication (e.g. Zometa, Prolia, Forteo) use in previous 2 years

研究组 & 干预措施

Usual Activity

Other

Subjects will participate in usual daily activities during this period

干预措施: Exercise (Behavioral)

结局指标

主要结局

Total Body Lean Mass (grams)

时间窗: 12 weeks (Period 1) and 36 weeks (Period 2)

Total body lean mass assessed by Dual Energy X-Ray Absorptiometry (DXA)

Percentage Body Fat

时间窗: 12 weeks (Period 1) and 36 weeks (Period 2)

Percentage body fat assessed by Dual Energy X-Ray Absorptiometry (DXA)

Percentage Body Fat

时间窗: 12 weeks (Period 1) and 36 weeks (Period 2)

Percentage body fat assessed by Dual Energy X-Ray Absorptiometry (DXA)

次要结局

  • 6 minute walk test (6MWT)(12 weeks (Period 1) and 36 weeks (Period 2))
  • Vertical Jump(12 weeks (Period 1) and 36 weeks (Period 2))
  • Bone Mineral Density (BMD)(36 weeks (Period 2))
  • 6 minute walk test (6MWT)(12 weeks (Period 1) and 36 weeks (Period 2))
  • Vertical Jump(12 weeks (Period 1) and 36 weeks (Period 2))
  • Bone Mineral Density (BMD)(36 weeks (Period 2))

研究者

申办方类型
Other
责任方
Sponsor

研究点 (2)

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