Effects of Nunchaku Exercise on Adhesive Capsulitis (Frozen Shoulder) in Middle-aged and Older Adults: A Randomized Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 50
- 试验地点
- 1
- 主要终点
- Shoulder Pain and Disability Index (SPADI)
研究概览
简要总结
The goal of this clinical trial is to investigate if nunchaku exercise works to treat adhesive capsulitis, or frozen shoulder in middle-aged or older adults. It will also learn about the adherence of this exercise intervention. The main questions it aims to answer are:
- Does practicing nunchaku exercises help reduce shoulder pain and improve shoulder movement?
- Do people stick with nunchaku exercises better, and spend more time practicing on their own, compared with standard exercises for alleviating frozen-shoulder?
Researchers will compare nunchaku exercise to standard exercises for alleviating frozen-shoulder to see if nunchaku exercise works to alleviate frozen shoulder.
Participants will:
-
Join small group exercise classes for 12 weeks, doing either nunchaku based exercises or standard exercises designed to help relieve frozen shoulder.
-
Have their shoulder pain and movement checked three times:
-
before training
-
after 6 weeks of training,
-
after finishing the 12 week program, and
-
12 weeks after the program ends.
-
Keep a record of their home practice time.
详细描述
Adhesive capsulitis, or frozen shoulder, is a progressive fibro-inflammatory condition characterized by synovitis, capsular thickening, and collagen remodeling, leading to substantial restrictions in active and passive shoulder motion. These movement limitations commonly result in impaired sleep, difficulties in self-care, and reduced capacity for work and leisure activities. Although conservative rehabilitation is the standard of care, real-world effectiveness is frequently constrained by poor adherence to home-based exercises, often due to discomfort and exercise monotony.
This randomized controlled trial investigates the effects of nunchaku exercise as a novel rehabilitative modality for individuals with adhesive capsulitis in the thawing phase. Nunchaku practice requires rhythmic, multiplanar arm motions, coordinated scapulohumeral control, and dynamic stabilization. These biomechanical characteristics align with therapeutic goals of end-range stretching, neuromuscular retraining, and rotator-cuff-based stabilization. The inherently rhythmic, skill-acquisition nature of nunchaku practice may also enhance intrinsic motivation and adherence relative to traditional exercise programs.
In this assessor-blinded, two-arm, parallel-group trial, 50 ethnic Chinese adults aged 45 years or older will be recruited and randomized 1:1 to either a standard shoulder mobilization and stretching exercise program (SMSE) or a nunchaku exercise program (NE). The nunchaku exercise program will adapt into a safe, soft-towel form suitable for older adults. Both interventions last 12 weeks and consist of twice-weekly, 60-minute, small-group sessions, supplemented by encouraged home practice. SMSE includes joint mobilization, end-range stretching, strengthening. NE follows the Level 1 nunchaku syllabus of the nunchaku system from the Hong Kong nunchaku association.
Outcomes will be assessed at baseline, week 6, week 12, and week 24. The primary outcome is the Shoulder Pain and Disability Index (SPADI). Secondary outcomes include the Visual Analog Scale for pain, Constant-Murley Score, pain-free range of motion, and intervention enjoyment (PACES-8). Adherence will be monitored through attendance, dropout rates, and weekly self-practice time.
This study aims to determine whether nunchaku exercise can improve adherence and produce superior clinical outcomes compared with standard rehabilitation in middle-aged and older adults with adhesive capsulitis.
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
- Single (Outcomes Assessor)
盲法说明
Because of the nature of the exercise interventions, blinding participants and instructors to group assignments is not feasible. To reduce bias, outcome assessments will be conducted by research staff and registered physiotherapists who are independent of the enrolment process and remain unaware of group assignments. During assessments, participants will be instructed not to disclose their group allocation.
入排标准
- 年龄范围
- 45 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Ethnic Chinese;
- •Age 45 years or above;
- •Diagnosed with Adhesive Capsulitis (Frozen Shoulder) and currently in the thawing stage.
排除标准
- •Presence of secondary causes of shoulder stiffness, including recent trauma, post-surgical stiffness, or structural lesions such as full-thickness rotator cuff tears or severe glenohumeral arthritis;
- •Receipt of recent shoulder treatments known to influence short-term outcomes, including corticosteroid injections within the past three months, hydrodilatation, manipulation under anesthesia, arthroscopic capsular release within the past six months, or structured shoulder physiotherapy within the past three months;
- •Presence of somatic conditions that limit their ability to participate safely in exercise (e.g., inability to walk without an assistive device).
研究组 & 干预措施
Nunchaku Exercise
干预措施: Nunchaku Exercise (Behavioral)
Shoulder Mobilization and Stretching Exercise (SMSE)
干预措施: Shoulder Mobilization and Stretching Exercise (SMSE) (Behavioral)
结局指标
主要结局
Shoulder Pain and Disability Index (SPADI)
时间窗: From enrollment to the end of follow-up period at 24 weeks
SPADI will be used to assess shoulder pain and functional limitations during daily living activities. SPADI, comprising 5 items to assess pain and 8 to assess disability, is widely used to evaluate the negative impact of frozen shoulder. Its Chinese version has been validated in China with good internal consistency and reliability
次要结局
- Visual Analog Scale for Pain (VAS)(From enrollment to the end of follow-up period at 24 weeks)
- Constant-Murley Score (CMS)(From enrollment to the end of follow-up period at 24 weeks)
- Pain-free Range of Motion (ROM)(From enrollment to the end of follow-up period at 24 weeks)
- Enjoyment of intervention(From mid-intervention at 6 weeks to to the end of follow-up period at 24 weeks)
研究者
Angus Pak-Hung Yu
Research Assistant Professor
Chinese University of Hong Kong