en فيزيولوژی ورزشی و شاخه‌های وابسته بدان Sport Physiology and its related branches مقاله اصیل Original Article <div style="text-align: justify;"><strong>Background.</strong> The growing popularity of marathon running has increased interest in enhancing performance and preventing injuries. Balance, posture, and respiratory function are crucial for marathon runners.<br> <strong>Objectives. </strong>This study investigated the effects of posture-correcting functional garments on male amateur runners&#39; balance, cervical lordosis angle, and aerobic capacity.<br> <strong>Methods. </strong>Thirty male amateur marathon runners (aged 30&ndash;50 years) were randomly assigned to either an experimental group (EG, n=15), wearing functional garments designed for posture maintenance and spinal correction during both training and daily activities, or a control group (CG, n=15), without garments. The intervention lasted 4 weeks, with both groups participating in aerobic running sessions thrice weekly. Static balance, the primary outcome, was assessed using the Biodex Balance System to measure the overall stability index (OSI), anterior-posterior stability index (APSI), and medial-lateral stability index (MLSI). Cervical lordosis angle was assessed using craniovertebral angle (CVA) measurements, and aerobic capacity was evaluated using the Bruce protocol for maximum heart rate (HRmax), maximal oxygen consumption (VO2max), and rating of perceived exertion (RPE). Statistical analysis was conducted using two-way repeated measures analysis of variance.<br> <strong>Results. </strong>Participants in the EG showed significant improvements in static balance (OSI and APSI; P<0.001 and P=0.012, respectively), CVA (P=0.021), and VO2max (P<0.001) than those in the CG.<br> <strong>Conclusion. </strong>Functional garments enhance balance, posture, and aerobic capacity in male amateur runners, offering potential performance and injury prevention benefits. Further studies should investigate long-term effects and applications in diverse athletes.</div> Postural Correction, Aerobic Capacity, Biomechanics, Long-Distance Running, Injury Prevention 0 0 http://aassjournal.com/browse.php?a_code=A-11-2376-1&slc_lang=en&sid=1 Han Soo Park hansoo85@hanmail.net 100319475328460016933 100319475328460016933 No Sports Medicine Laboratory, Korea National Sport University, 1239 Yangjae-daero, Songpa-gu, Seoul, Republic of Korea Jae Keun Oh sportsomd@knsu.ac.kr 100319475328460016934 100319475328460016934 No Sports Medicine Laboratory, Korea National Sport University, 1239 Yangjae-daero, Songpa-gu, Seoul, Republic of Korea Mu Yeop Ji ptl2333@knsu.ac.kr 100319475328460016935 0009-0004-7001-7956 Yes Institute of Health and Exercise Science, Seogyeong-ro, Seongbuk-gu, Seoul, Republic of Korea