FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3025893553> ?p ?o ?g. }

• W3025893553 abstract "Decreased oxygenation of muscle may be accentuated during exercise at high altitude. Monitoring the oxygen saturation of muscle (SmO2) during hand grip exercise using near infrared spectroscopy during acute exposure to hypoxia could provide a model for a test of muscle performance without the competing cardiovascular stresses that occur during a cycle ergometer or treadmill test. The purpose of this study was to examine and compare acute exposure to normobaric hypoxia versus normoxia on deoxygenation and recruitment of the flexor digitorum superficialis (FDS) during submaximal intermittent handgrip exercise (HGE) in healthy adults.Twenty subjects (11 M/9 F) performed HGE at 50% of maximum voluntary contraction, with a duty cycle of 2 s:1 s until task failure on two occasions one week apart, randomly assigned to normobaric hypoxia (FiO2 = 12%) or normoxia (FiO2 = 21%). Near-infrared spectroscopy monitored SmO2, oxygenated (O2Hb), deoxygenated (HHb), and total hemoglobin (tHb) over the FDS. Surface electromyography derived root mean square and mean power frequency of the FDS.Hypoxic compared to normoxic HGE induced a lower FDS SmO2 (63.8 ± 2.2 vs. 69.0 ± 1.5, p = 0.001) and both protocols decreased FDS SmO2 from baseline to task failure. FDS mean power frequency was lower during hypoxic compared to normoxic HGE (64.0 ± 1.4 vs. 68.2 ± 2.0 Hz, p = 0.04) and both decreased mean power frequency from the first contractions to task failure (p = 0.000). Under both hypoxia and normoxia, HHb, tHb and root mean square increased from baseline to task failure whereas O2Hb decreased and then increased during HGE. Arterial oxygen saturation via pulse oximetry (SpO2) was lower during hypoxia compared to normoxia conditions (p = 0.000) and heart rate and diastolic blood pressure only demonstrated small increases. Task durations and the tension-time index of HGE did not differ between normoxic and hypoxic trials.Hypoxic compared to normoxic HGE decreased SmO2 and induced lower mean power frequency in the FDS, during repetitive hand grip exercise however did not result in differences in task durations or tension-time indices. The fiber type composition of FDS, and high duty cycle and intensity may have contributed greater dependence on anaerobiosis." @default.
• W3025893553 created "2020-05-21" @default.
• W3025893553 creator A5003357856 @default.
• W3025893553 creator A5004073289 @default.
• W3025893553 creator A5048211884 @default.
• W3025893553 creator A5061417191 @default.
• W3025893553 creator A5061584561 @default.
• W3025893553 creator A5079796951 @default.
• W3025893553 creator A5085612823 @default.
• W3025893553 creator A5088026568 @default.
• W3025893553 date "2020-05-15" @default.
• W3025893553 modified "2023-10-06" @default.
• W3025893553 title "The effects of hypoxia on muscle deoxygenation and recruitment in the flexor digitorum superficialis during submaximal intermittent handgrip exercise" @default.
• W3025893553 cites W167741871 @default.
• W3025893553 cites W1749156907 @default.
• W3025893553 cites W1809394698 @default.
• W3025893553 cites W181539949 @default.
• W3025893553 cites W1862229393 @default.
• W3025893553 cites W1905603695 @default.
• W3025893553 cites W1914691075 @default.
• W3025893553 cites W1976337736 @default.
• W3025893553 cites W1976605803 @default.
• W3025893553 cites W1986947200 @default.
• W3025893553 cites W1991308655 @default.
• W3025893553 cites W1995760115 @default.
• W3025893553 cites W2003592164 @default.
• W3025893553 cites W2005647586 @default.
• W3025893553 cites W2006337292 @default.
• W3025893553 cites W2018330107 @default.
• W3025893553 cites W2029090841 @default.
• W3025893553 cites W2032670867 @default.
• W3025893553 cites W2034793584 @default.
• W3025893553 cites W2043651382 @default.
• W3025893553 cites W2051772369 @default.
• W3025893553 cites W2053638981 @default.
• W3025893553 cites W2057332083 @default.
• W3025893553 cites W2064326946 @default.
• W3025893553 cites W2068564878 @default.
• W3025893553 cites W2074032141 @default.
• W3025893553 cites W2074064732 @default.
• W3025893553 cites W2091322622 @default.
• W3025893553 cites W2106345877 @default.
• W3025893553 cites W2107874655 @default.
• W3025893553 cites W2110018677 @default.
• W3025893553 cites W2115238669 @default.
• W3025893553 cites W2124042154 @default.
• W3025893553 cites W2125078269 @default.
• W3025893553 cites W2125228561 @default.
• W3025893553 cites W2125929079 @default.
• W3025893553 cites W2137523819 @default.
• W3025893553 cites W2145318183 @default.
• W3025893553 cites W2153691998 @default.
• W3025893553 cites W2155298101 @default.
• W3025893553 cites W2155779718 @default.
• W3025893553 cites W2163918329 @default.
• W3025893553 cites W2212493890 @default.
• W3025893553 cites W2256968603 @default.
• W3025893553 cites W2279280199 @default.
• W3025893553 cites W2334621236 @default.
• W3025893553 cites W2419243908 @default.
• W3025893553 cites W4230948092 @default.
• W3025893553 cites W5503208 @default.
• W3025893553 doi "https://doi.org/10.1186/s13102-020-00163-2" @default.
• W3025893553 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7226965" @default.
• W3025893553 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32467763" @default.
• W3025893553 hasPublicationYear "2020" @default.
• W3025893553 type Work @default.
• W3025893553 sameAs 3025893553 @default.
• W3025893553 citedByCount "2" @default.
• W3025893553 countsByYear W30258935532021 @default.
• W3025893553 countsByYear W30258935532022 @default.
• W3025893553 crossrefType "journal-article" @default.
• W3025893553 hasAuthorship W3025893553A5003357856 @default.
• W3025893553 hasAuthorship W3025893553A5004073289 @default.
• W3025893553 hasAuthorship W3025893553A5048211884 @default.
• W3025893553 hasAuthorship W3025893553A5061417191 @default.
• W3025893553 hasAuthorship W3025893553A5061584561 @default.
• W3025893553 hasAuthorship W3025893553A5079796951 @default.
• W3025893553 hasAuthorship W3025893553A5085612823 @default.
• W3025893553 hasAuthorship W3025893553A5088026568 @default.
• W3025893553 hasBestOaLocation W30258935531 @default.
• W3025893553 hasConcept C126322002 @default.
• W3025893553 hasConcept C164705383 @default.
• W3025893553 hasConcept C178790620 @default.
• W3025893553 hasConcept C185592680 @default.
• W3025893553 hasConcept C2778917026 @default.
• W3025893553 hasConcept C2910876585 @default.
• W3025893553 hasConcept C42219234 @default.
• W3025893553 hasConcept C540031477 @default.
• W3025893553 hasConcept C70289976 @default.
• W3025893553 hasConcept C71924100 @default.
• W3025893553 hasConcept C7836513 @default.
• W3025893553 hasConceptScore W3025893553C126322002 @default.
• W3025893553 hasConceptScore W3025893553C164705383 @default.
• W3025893553 hasConceptScore W3025893553C178790620 @default.
• W3025893553 hasConceptScore W3025893553C185592680 @default.
• W3025893553 hasConceptScore W3025893553C2778917026 @default.
• W3025893553 hasConceptScore W3025893553C2910876585 @default.
• W3025893553 hasConceptScore W3025893553C42219234 @default.
• W3025893553 hasConceptScore W3025893553C540031477 @default.

• next