The major limitation to exercise performance in COPD is inadequate energy supply to the respiratory and locomotor muscles vs. lower limb muscle dysfunction vs. dynamic hyperinflation

2008 ◽  
Vol 105 (2) ◽  
pp. 758-762 ◽  
Author(s):  
John B. West
Keyword(s):  
Exercise Performance ◽  
Lower Limb ◽  
Energy Supply ◽  
Muscle Dysfunction ◽  
Dynamic Hyperinflation ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Locomotor Muscles

scholarly journals Grey Relational Analysis of Lower Limb Muscle Fatigue and Pedalling Performance Decline of Elite Athletes during a 30-Second All-Out Sprint Cycling Exercise

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Lejun Wang ◽  
Hua Yang ◽  
Guoqiang Ma ◽  
Mingxin Gong ◽  
Wenxin Niu ◽  
...  
Keyword(s):  
Muscle Fatigue ◽  
Exercise Performance ◽  
Lower Limb ◽  
Muscle Group ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Cycling Exercise ◽  
Performance Decline ◽  
Sprint Cycling ◽  
Grey Relational

The 30-second all-out sprint cycling exercise is a classical sport capacity evaluation method, which may cause severe lower limb muscle fatigue. However, the relationship between lower limb muscle fatigue and the decline in exercise performance during 30-second sprint cycling remains unclear. In this study, ten cyclists volunteered to participate in a 30-second all-out sprint cycling while power, cadence, and surface electromyographic (EMG) signals of eight lower limb muscles were recorded during the exercise. EMG mean frequency (MNF) of each lower limb muscle group was computed for every 3-second epoch based on wavelet packet transformation. Grey relational grades between pedalling performance and the EMG MNF of each lower limb muscle group during the whole process were calculated. The results demonstrated that EMG MNF of the rectus femoris (RF), vastus (VAS), gastrocnemius (GAS), and tibialis anterior (TA) progressively tired during a 30-second all-out sprint cycling exercise. Of the muscles evaluated, the degree of fatigue of TA showed the greatest association with exercise performance decline, whereas the muscle fatigue of RF, VAS, and GAS also significantly impacted exercise performance during a 30-second all-out sprint cycling exercise.

scholarly journals Lower limb muscle function and exercise performance in lung cancer

Respirology ◽  
2017 ◽  
Vol 22 (6) ◽  
pp. 1053-1054 ◽  
Author(s):  
Matthew Maddocks ◽  
Catherine Granger
Keyword(s):  
Lung Cancer ◽  
Exercise Performance ◽  
Lower Limb ◽  
Muscle Function ◽  
Lower Limb Muscle ◽  
Limb Muscle

4 Case Reports On Patients with Acute Lower Limb Muscle Weakness Treated by Spinal Mobilization With Leg Movement(SMWLM) Combined with Korean Medicine Treatment

2020 ◽  
Vol 15 (2) ◽  
pp. 63-73
Author(s):  
Young-Joo Moon ◽  
Won-Bin Shin ◽  
Gwang-Hyun Ryu ◽  
Ji-Yun Lee ◽  
Hyun-A Jeon ◽  
...  
Keyword(s):  
Muscle Weakness ◽  
Lower Limb ◽  
Case Reports ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Korean Medicine ◽  
Leg Movement
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