A SUPERVISED RESISTANCE AND WEIGHT-BEARING EXERCISE PROGRAM IMPROVES FOREARM FUNCTION AND RADIAL BONE HEALTH IN INSTITUTIONALIZED OLDER ADULTS: A PILOT STUDY
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 34
- 试验地点
- 1
- 主要终点
- Radial Bone Health
研究概览
简要总结
This quasi-experimental controlled study evaluated the effects of a six-month supervised resistance and weight-bearing exercise program on forearm muscle strength and radial bone health in institutionalized older adults. Thirty-four participants were allocated to an exercise group (n = 17) or a control group (n = 17). The exercise group participated in a 24-week exercise program performed three times per week, consisting of forearm-focused resistance and upper-extremity weight-bearing exercises. Outcomes included handgrip strength, forearm muscle strength, and radius bone mineral density at proximal, midshaft, distal, and total regions. The study examined whether the exercise program could improve upper-extremity functional strength and support the maintenance of radial bone health in institutionalized older adults.
详细描述
Older adults living in institutional settings are at increased risk of declines in muscle strength, physical function, and skeletal health. Although resistance and weight-bearing exercise are widely recommended to support musculoskeletal health, evidence regarding their effects on site-specific radial bone health and forearm function in institutionalized older adults remains limited.
This study investigated whether a supervised exercise program combining forearm-focused resistance exercises with upper-extremity weight-bearing activities could improve or help maintain forearm muscle strength and radius bone mineral density in institutionalized older adults. The intervention was designed to provide progressive mechanical loading to the upper extremities while incorporating exercises intended to improve functional strength.
Participants in the exercise group completed a 24-week supervised exercise program three times per week. The program included resistance exercises targeting the forearm and upper-extremity weight-bearing exercises, with exercise intensity and loading progressively adjusted according to individual capacity. A control group continued their usual activities without participation in the supervised exercise program.
The study assessed changes in handgrip strength, forearm muscle strength, and radius bone mineral density at proximal, midshaft, distal, and total regions. The study also explored associations between changes or post-intervention measures of forearm muscle strength and region-specific radial bone parameters.
The study was conducted as a single-center, quasi-experimental controlled study in an institutionalized older-adult population. Because of institutional and logistical considerations, participants were allocated sequentially to the exercise or control group rather than by individual randomization.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non 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 78 Years（Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •age ≥65 years,
- •independence in activities of daily living, and
- •residence in the nursing home for at least one year
排除标准
- •systemic corticosteroid use,
- •estrogen supplementation,
- •previous osteoporosis treatment,
- •history of upper-extremity surgery,
- •prolonged bed rest (>2 months),
- •severe visual or hearing impairment, and
- •previous professional participation in upper-extremity-dominant sports
研究组 & 干预措施
Exercise Group
Participants received a 24-week supervised resistance and upper-extremity weight-bearing exercise program performed three times per week. The program included forearm-focused resistance exercises and upper-extremity weight-bearing activities, with exercise intensity and loading progressively adjusted according to individual capacity.
干预措施: Forearm-Focused Resistance and Upper-Extremity Weight-Bearing Exercise (Behavioral)
Control Group
Participants continued their usual activities during the study period and did not participate in the supervised exercise program.
结局指标
主要结局
Radial Bone Health
时间窗: Baseline and 6 months
The primary outcome was areal bone mineral density (BMD) of the radius, assessed using dual-energy X-ray absorptiometry (DXA; Hologic Discovery Wi, Hologic Inc., Bedford, MA, USA) at a university-affiliated hospital. BMD was measured at the proximal, midshaft, distal, and total radius regions of both the dominant and non-dominant upper extremities. Areal BMD was expressed in g/cm². Baseline and follow-up measurements were performed using the same DXA device and standardized scanning procedures. All scans were acquired by the same certified technician, and the DXA reports were evaluated by the same physician to minimize measurement and inter-observer variability.
次要结局
- Handgrip and Forearm muscle strength and Body composition (% body fat, fat mass, lean body mass)(Baseline and 6 months)
研究者
Yasemin Kavlak
Associate Professor
Eskisehir Osmangazi University