Titcomb David A, Melton Bridget F, Bland Helen W, Miyashita Theresa
Department of Allied Health Professions, Liberty University, Lynchburg, VA, USA.
Department of Health Sciences and Human Performance, Concordia University-Chicago, River Forest, IL, USA.
Int J Exerc Sci. 2024 Jan 1;17(1):73-85. doi: 10.70252/GDNN4363. eCollection 2024.
The purpose of this study was to examine the effects of standing versus sitting body position on the craniovertebral angle (CVA) in young adults without pathology; and to investigate whether mean differences between positional CVA measures in subjects with severe forward head posture (FHP) are distinct from age-matched controls with normal head posture. Ninety-eight young adults (68 women, 30 men) without pathology (OVERALL; = 98) volunteered for the study; those with CVA > 53° were also included in a normal posture group (NORM; = 14); those with CVA < 45° were also included in a severe FHP group (SEV; = 15). CVA assessments were conducted in standing and sitting. Mean difference comparison of change in mean CVA between conditions revealed significantly ( < 0.05) higher CVA values in standing condition (OVERALL: 50.0 ± 5.2°; NORM: 56.6 ± 2.7°; SEV: 41.2 ± 3.2°) compared to sitting condition (OVERALL: 47.8 ± 5.7°; NORM: 55.9 ± 2.8°; SEV: 39.0 ± 4.0°). Mean difference comparison of between-group change in mean CVA between conditions revealed greater CVA change ( < 0.05) in the SEV group (2.2 ± 2.1°) versus the NORM group (0.8 ± 1.2°). Sitting CVA values may be lower (indicating greater FHP) than standing CVA values in young adults. Differences between standing and sitting CVA measures may be greater in young adults with severe FHP compared to peers with normal head posture. Study findings support standing as a standardized body position for CVA assessment in young adults without pathology.
本研究的目的是检查站立与坐姿对无病理状况的年轻成年人颅椎角（CVA）的影响；并调查严重头部前倾姿势（FHP）受试者的位置性CVA测量值之间的平均差异是否与头部姿势正常的年龄匹配对照组不同。98名无病理状况的年轻成年人（68名女性，30名男性）（总体；n = 98）自愿参加本研究；CVA>53°的受试者也被纳入正常姿势组（NORM；n = 14）；CVA<45°的受试者也被纳入严重FHP组（SEV；n = 15）。在站立和坐姿下进行CVA评估。条件之间平均CVA变化的平均差异比较显示，与坐姿相比，站立条件下（总体：50.0±5.2°；NORM：56.6±2.7°；SEV：41.2±3.2°）的CVA值显著更高（P<0.05）（总体：47.8±5.7°；NORM：55.9±2.8°；SEV：39.0±4.0°）。条件之间组间平均CVA变化的平均差异比较显示，与NORM组（0.8±1.2°）相比，SEV组（2.2±2.1°）的CVA变化更大（P<0.05）。在年轻成年人中，坐姿CVA值可能低于站立CVA值（表明FHP更严重）。与头部姿势正常的同龄人相比，严重FHP的年轻成年人站立和坐姿CVA测量值之间的差异可能更大。研究结果支持站立作为无病理状况的年轻成年人CVA评估的标准化身体姿势。
