Effects of Lower Limb Cooling on the Work Performance and Physiological Responses During Maximal Endurance Exercise in Humans

Author(s):  
Keiko Inoue ◽  
Masashi Kume ◽  
Tetsuya Yoshida
2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Kouki Fukuhara ◽  
Yukio Mikami ◽  
Hiroshi Hasegawa ◽  
Daigo Nakashima ◽  
Yasunari Ikuta ◽  
...  

2000 ◽  
Vol 278 (4) ◽  
pp. E580-E587 ◽  
Author(s):  
Scott McKenzie ◽  
Stuart M. Phillips ◽  
Sherry L. Carter ◽  
Stuart Lowther ◽  
Martin J. Gibala ◽  
...  

We studied the effects of a 38-day endurance exercise training program on leucine turnover and substrate metabolism during a 90-min exercise bout at 60% peak O2 consumption (V˙o 2 peak) in 6 males and 6 females. Subjects were studied at both the same absolute (ABS) and relative (REL) exercise intensities posttraining. Training resulted in a significant increase in whole bodyV˙o 2 peak and skeletal muscle citrate synthase (CS; P < 0.001), complex I-III ( P < 0.05), and total branched-chain 2-oxoacid dehydrogenase (BCOAD; P < 0.001) activities. Leucine oxidation increased during exercise for the pretraining trial (PRE, P < 0.001); however, there was no increase for either the ABS or REL posttraining trial. Leucine oxidation was significantly lower for females at all time points during rest and exercise ( P < 0.01). The percentage of BCOAD in the activated state was significantly increased after exercise for both the PRE and REL exercise trials, with the increase in PRE being greater ( P < 0.001) compared with REL ( P < 0.05). Females oxidized proportionately more lipid and less carbohydrate during exercise compared with males. In conclusion, we found that 38 days of endurance exercise training significantly attenuated both leucine oxidation and BCOAD activation during 90 min of endurance exercise at 60%V˙o 2 peak for both ABS and REL exercise intensities. Furthermore, females oxidize proportionately more lipid and less carbohydrate compared with males during endurance exercise.


PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0132099 ◽  
Author(s):  
Sebastian Frese ◽  
Matthias Ruebner ◽  
Frank Suhr ◽  
Thierry M. Konou ◽  
Kim A. Tappe ◽  
...  

2013 ◽  
Vol 134 (11-12) ◽  
pp. 531-540 ◽  
Author(s):  
U.R. Mikkelsen ◽  
C. Couppé ◽  
A. Karlsen ◽  
J.F. Grosset ◽  
P. Schjerling ◽  
...  

1991 ◽  
Vol 1 (1) ◽  
pp. 3-27 ◽  
Author(s):  
Richard B. Kreider

The physiological effects of endurance exercise have been a primary area of research in exercise science for many years. This research has led not only to a greater understanding of human physiology but also the limits of human performance. This is especially true regarding the effects of endurance exercise on energy metabolism and nutrition. However, as science has attempted to understand the physiological and nutritional demands of endurance exercise lasting 1 to 3 hours, an increasing number of athletes have begun participating in ultraendurance events lasting 4 to 24 hours. Consequently some research groups are now investigating the physiological responses to ultraendurance training and performance. This paper reviews the literature on ultraendurance performance and discusses nutritional factors that may affect bioenergetic, thermoregulatory, endocrinological, and hematological responses to ultraendurance performance.


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