Clinical Research Directory

Effects of Polarized and Threshold Intensity Distribution Models on Race Time and Body Composition in Recreational Runners Aged 20-45 Years.

This study aims to compare the effects of two intensity distribution training (TID) models-polarized and threshold-on 5-km race time and body composition in recreational runners aged 20 to 45 years. Participants will be randomly assigned to one of two groups and will complete a 12-week structured training program. The primary outcome will be 5-km race time, while secondary outcomes will include changes in body composition. Assessments will be conducted before and after the intervention period.

Plyometric Exercises During the Winter Pre-season in Sprinters

Background. Plyometric training is an effective strategy to improve power and performance in sprint-based sports; however, evidence regarding its actual effects in athletes during the winter season and its potential influence on the occurrence of health problems remains limited. Objective. To analyse the association between participation in a plyometric exercise programme during the winter pre-season and competitive performance, as well as the occurrence of lower-limb health problems in sprinters. Methods. This will be a prospective observational cohort study with fully online data collection. Federated sprinters or athletes affiliated with athletics clubs will be included. The main exposure will be participation in a plyometric exercise programme (≥2 sessions per week in January). Outcomes will be winter competitive performance (best official time) and lower-limb health problems assessed using the OSTRC-H2 questionnaire. Control variables will include sleep quality (PSQI), internal training load (session-RPE), injury history, and competitive level. Statistical analyses will include linear and logistic regression models adjusted for potential confounders. Expected results. A positive association is expected between engagement in plyometric training and competitive performance, along with a lower frequency of lower-limb health problems, particularly among athletes with adequate sleep quality and a well-balanced training load.

Study of Running Injuries and Treatment Habits in Romanian Speakers

This study examines running injuries, quality of life, and treatment habits among Romanian-speaking runners. A key objective is the Romanian language adaptation and validation of the University of Wisconsin Running Injury and Recovery Index (UWRI), a running-specific questionnaire. The purpose is to understand: * What types of running injuries are most common * How injuries affect runners' daily life and well-being * What prevention and treatment methods runners currently use * What healthcare services runners use for injuries * To provide a validated Romanian version of the UWRI questionnaire Participants will complete an online questionnaire about their running experience, any injuries they have had, how these injuries affected their life, and what treatments they tried. The survey takes about 25-30 minutes to complete. All information is confidential and anonymous. This research will help healthcare providers better understand and treat running injuries in the Romanian-speaking community.