Results 101 to 110 of about 12,905 (200)

Wearing a KN95/FFP2 facemask has no measureable effect on functional activity in a challenging working memory n-back task

open access: yesFrontiers in Human Neuroscience
IntroductionWide use of facemasks is one of the many consequences of the COVID-19 pandemic.MethodsWe used an established working memory n-back task in functional magnetic resonance imaging (fMRI) to explore whether wearing a KN95/FFP2 facemask affects ...
Marie-Louise Montandon   +8 more
doaj   +1 more source

Dentoalveolar Changes in the Premolar Region After Two Maxillary Expansion Protocols

open access: yesOrthodontics &Craniofacial Research, Volume 29, Issue 4, Page 717-727, August 2026.
ABSTRACT Objectives To evaluate the dentoalveolar effects on the upper first premolars after two maxillary expansion protocols—rapid maxillary expansion (RME) and alternate rapid maxillary expansion and constriction (Alt‐RAMEC)—before and 6 months after treatment.
Jaqueline Peter   +6 more
wiley   +1 more source

Quadriceps Muscle Length Differentially Affects Exercise Capacity, the Torque‐Duration Relationship, and Neuromuscular Fatigue

open access: yesScandinavian Journal of Medicine &Science in Sports, Volume 36, Issue 8, August 2026.
ABSTRACT To determine the effects of muscle length on exercise capacity, critical torque/W′ and neuromuscular fatigue. Thirteen subjects performed 60 isometric maximal voluntary contractions (MVC) over a period of 5 min, at five knee angles to manipulate maximal torque (i.e., optimal, −15°, −30°, +15° and +30°).
Nabil Kouzkouz   +3 more
wiley   +1 more source

Acute intermittent hypercapnic hypoxia augments left ventricular contractility

open access: yesThe Journal of Physiology, Volume 604, Issue 16, Page 6840-6857, 15 August 2026.
Abstract figure legend Twenty‐four healthy adults were studied to determine the effects of an acute session of 40 min of intermittent hypercapnic hypoxia on cardiac performance. Cardiac function was assessed via echocardiography at rest and during graded stages of lower‐body negative pressure before and after the intervention to quantify load ...
Scott F. Thrall   +8 more
wiley   +1 more source

Effect of Prolonged Use of Different Facemasks on Their Physical Performance and Physiological Impact on the Wearer

open access: yesSafety and Health at Work
Background: Most published studies on potential facemask physical performances and physiological impairments had shorter observation periods, and the observed occupational physical activities had limited relevance to real occupational work.
Baderin Osman   +2 more
doaj   +1 more source

Acute and chronic application of novel incremental breath‐hold technique increases endurance exercise performance in healthy men and male military personnel

open access: yesPhysiological Reports, Volume 14, Issue 15, August 2026.
Abstract We evaluated acute (Study A) and chronic (Study B) effects of a novel breath‐hold technique (BHT) protocol on performance in military personnel. In Study A, 11 healthy male participants completed either rest or a 40‐min BHT before 15 min steady‐state (SS) cycling at 80% V̇O2max and a 5‐min time trial (TT). BHT acutely increased V̇O2 (200.3%, p 
Matthew J. Burley   +5 more
wiley   +1 more source

Management of Skeletal Class III Malocclusion in an Adolescent Using Maxillary Skeletal Expander and Facemask - A Case Report

open access: yesIndian Journal of Dental Research
Skeletal Class III malocclusion in adolescents can be effectively managed using the combination of maxillary skeletal expander (MSE) and facemask (FM). An adolescent presented concerns about her lower front teeth positioned ahead of the upper front teeth,
Nandita Krishnaswamy
doaj   +1 more source

Facemasks [PDF]

open access: yesBritish Dental Journal, 2008
openaire   +1 more source

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