Clinical Research Directory

Blood Flow Restriction Parameters and Lower Limb Function in Older Adults With Dynapenia

The objective of the first year is to collect limb occlusion pressure (LOP) measurements in older adults with varying levels of muscle health, which will serve as foundational data for subsequent investigations on blood flow restriction (BFR) combined with resistance training in individuals with dynapenia. This phase aims to examine LOP values and their potential influencing factors, including demographic and physiological characteristics such as age, height, body weight, blood pressure, waist circumference, body fat percentage, medical history of chronic diseases, and habitual physical activity. Muscle-related assessments will include skeletal muscle mass, thigh and calf circumference, handgrip strength, and lower limb muscle strength. Functional performance will be evaluated using the five-times sit-to-stand test and the SARC-F questionnaire for sarcopenia risk screening. LOP of the lower limbs will be measured using a BFR cuff system combined with a laboratory-developed blood flow detection device. The study will further investigate whether LOP values are associated with the aforementioned factors. The objective of the second year is to utilize high-density surface electromyography (dEMG) to analyze the electrophysiological characteristics of muscle contraction in individuals with sarcopenia under varying BFR pressures and resistance intensities. This includes examining motor unit recruitment patterns and recruitment thresholds, with the goal of identifying effective and appropriate BFR exercise parameters for this population. The objective of the third year is to investigate the effects of lower limb BFR combined with resistance training on functional performance in individuals with dynapenia. Building upon the findings from the first year, this phase will implement BFR resistance training interventions and evaluate both short-term and long-term effects. Through an experimental design, the study will assess changes in body composition, muscle strength, and functional performance following a four-month intervention, along with a three-month follow-up period, to determine whether participants can improve to a healthy status and maintain these improvements over time.

Effectiveness of Whole Body Vibration on Health Outcomes in Older Adults With Dynapenic Abdominal Obesity

This study focuses on whole body vibration training (WBVT), a form of neuromuscular training that uses mechanical vibrations. WBVT has been shown to improve muscle function, bone mineral density, and quality of life. While some benefits have been observed in the elderly population, there remains a research gap concerning its effectiveness in older adults with dynapenic abdominal obesity. Therefore, the findings of this study will provide new evidence for health interventions targeting this specific group. This research targets outpatients aged 65 and above who meet the criteria for dynapenic abdominal obesity. It aims to evaluate the effects of WBVT on brain activity, osteoporosis, quality of life, and biological markers. The study period is from February 1, 2025, to January 31, 2027, with a planned sample size of 120 participants, equally divided into an experimental group and a control group (60 participants each).

Reduction in Resistance Training Volume and Neuromuscular Adaptations in Older Adults

The goal of this clinical trial is to evaluate how reducing resistance training volume affects neuromuscular adaptations in older adults aged 60 to 70 years. The main questions it aims to answer are: Can strength and muscle adaptations be maintained with lower training volume? Does reducing training volume influence muscle power and hypertrophy in older adults? Researchers will compare two groups: A group that reduces training volume in one or both legs A group that maintains the same training volume in both legs to see if reducing volume leads to different neuromuscular outcomes. Participants will: Complete an initial 10-week strength training program (2x/week) using unilateral leg press and knee extension machines, performing 3 sets per exercise Undergo tests for muscle strength (1-RM), muscle thickness (ultrasound), and power (isokinetic dynamometry) at weeks 0, 5, and 10 After 10 weeks, be randomly assigned to: A reduced-volume group: one leg does 2 sets and the other 1 set per exercise Or a control group: both legs continue doing 3 sets Continue training for another 10 weeks under the assigned protocol Repeat strength, muscle thickness, and power assessments at weeks 5 and 10 of phase 2 Attend a dietary intake interview with a registered dietitian This study will help determine the minimum effective training volume needed to maintain strength and muscle health in older adults, potentially improving long-term adherence to exercise programs.

Multicomponent Training on Functional and Cognitive Performance of Hospitalized Older People

The goal of this clinical trial is to determine whether a multicomponent physical exercise program improves functional and cognitive capacity in hospitalized older adults compared to the usual hospital care. The main questions it aims to answer are: * Does a multicomponent physical exercise program improve functional and cognitive capacity? * Is there a difference between a multicomponent physical exercise program and usual care regarding functional and cognitive outcomes after an acute hospitalization? Researchers will compare a multicomponent physical exercise program (containing strength, balance, and walking exercises) to the usual care of the hospital to see if the program is better at maintaining or enhancing functional and cognitive outcomes Participants will: * Participate in multicomponent physical exercise program or receive usual care. The multicomponent group will complete the program daily for the entire hospitalization period; * Perform functional and cognitive tests at the beginning and end of hospitalization; * Be contacted by researchers 3, 6, and 12 months after hospital discharge.

Effect Of The Presence Of Dynapenia On Posture, Spine Muscle Elasticity, Strength And Endurance In Young Adults

The aim of the present study was to determine the effect of dynapenia on posture, spinal muscle elasticity, strength and endurance in young adults.