Multidimensional assessment of exertional dyspnea in young healthy males and females who select unsatisfied inspiration at peak exercise.

IF 3.3 3区 医学 Q1 PHYSIOLOGY
Journal of applied physiology Pub Date : 2025-01-01 Epub Date: 2024-12-03 DOI:10.1152/japplphysiol.00420.2024
Reid A Mitchell, Alanna S Hind, Olivia N Ferguson, Morgan Flynn, Jem I Arnold, Satvir S Dhillon, Neil D Eves, A William Sheel, Jordan A Guenette
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引用次数: 0

Abstract

Historically, it was thought that healthy humans predominantly described their breathing as a sense of increased work or effort (W/E) during maximal exercise. However, emerging data show that many healthy adults select unpleasant dyspnea descriptors such as "unsatisfied inspiration" (UI), with relatively more females selecting UI than males. We hypothesized that males and females who select UI would report higher dyspnea intensity ratings during exercise, select more distressing dyspnea qualities post exercise, and have greater inspiratory constraints than those who do not. Sixty-four healthy, nonsmokers (32 males:32 females; 23 ± 5 yr) completed questionnaires, pulmonary function tests, and maximal incremental cycling with detailed dyspnea evaluation. Males in UI and non-UI subgroups reported similar Borg 0-10 dyspnea intensity ratings of W/E, UI, and unsatisfied expiration (UE) (all P > 0.05). Females in the UI subgroup reported significantly higher UI and UE ratings than females in the non-UI subgroup (both P < 0.01). Both UI subgroups reported greater air hunger, chest tightness, and mental breathing effort than non-UI participants (all P < 0.05). In males only, masculine gender was negatively correlated (ρ = -0.402, P = 0.02) and anxiety positively correlated (ρ = 0.363, P = 0.04) with submaximal UI ratings. Females with UI had smaller peak tidal volume (Vt) [1.74 (0.32) vs. 2.06 (0.33) L, P = 0.03] than non-UI females; and Vt was negatively correlated with submaximal (ρ = -0.496, P = 0.004) and peak (ρ = -0.495, P = 0.004) UI ratings in all females. There were no differences in Vt or correlations between Vt and dyspnea in male subgroups. Absolute lung volumes and psychosocial factors appear important in understanding sex differences in the perception of UI during exercise.NEW & NOTEWORTHY The mechanisms of sex-based differences in the sensation of unsatisfied inspiration (UI) in healthy humans during exercise are poorly understood. We found that females who selected UI at peak exercise had worse dyspnea intensity ratings throughout exercise. Both sexes who selected UI at peak exercise also reported more distressing dyspnea qualities post exercise. Psychosocial factors appeared to influence male dyspnea perception, whereas smaller absolute lung volumes correlated with worse UI ratings in females.

在运动高峰时选择不满意吸气的年轻健康男性和女性的运动性呼吸困难的多维评估。
从历史上看,人们认为健康的人主要将他们的呼吸描述为在最大运动期间增加工作或努力(W/E)的感觉。然而,新出现的数据显示,许多健康成年人选择不愉快的呼吸困难描述符,如“不满意的灵感”(UI),选择UI的女性相对多于男性。我们假设选择UI的男性和女性在运动中报告更高的呼吸困难强度等级;运动后选择更痛苦的呼吸困难;并且比那些没有的人有更大的吸气限制。64名健康非吸烟者(32M:32F;23±5年)完成问卷调查、肺功能测试和最大增量循环,并详细评估呼吸困难。UI亚组和非UI亚组的男性报告的W/E、UI和未满意呼气(UE)的Borg 0-10呼吸困难强度评分相似(均P < 0.05)。UI亚组女性报告的UI和UE评分显著高于非UI亚组女性(PPP均=0.02),焦虑与次最大UI评分正相关(r=0.363, P=0.04)。尿失禁雌虫潮气量(VT)峰值小于非尿失禁雌虫(1.74 (0.32)vs 2.06 (0.33) L, P=0.03);VT与UI次极大评分(r=-0.496, P=0.004)和峰值评分(r=-0.495, P=0.004)呈负相关。在男性亚组中,室速与呼吸困难之间无差异或相关性。绝对肺容量和社会心理因素在理解运动期间尿失速感知的性别差异方面显得很重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
6.00
自引率
9.10%
发文量
296
审稿时长
2-4 weeks
期刊介绍: The Journal of Applied Physiology publishes the highest quality original research and reviews that examine novel adaptive and integrative physiological mechanisms in humans and animals that advance the field. The journal encourages the submission of manuscripts that examine the acute and adaptive responses of various organs, tissues, cells and/or molecular pathways to environmental, physiological and/or pathophysiological stressors. As an applied physiology journal, topics of interest are not limited to a particular organ system. The journal, therefore, considers a wide array of integrative and translational research topics examining the mechanisms involved in disease processes and mitigation strategies, as well as the promotion of health and well-being throughout the lifespan. Priority is given to manuscripts that provide mechanistic insight deemed to exert an impact on the field.
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