Influence of jump-landing direction on dynamic postural stability and hamstring-to-quadriceps co-activation ratio

2021 ◽  
pp. 1-11
Author(s):  
Qingshan Zhang ◽  
Christophe A Hautier
2008 ◽  
Vol 11 (2) ◽  
pp. 106-111 ◽  
Author(s):  
Erik A. Wikstrom ◽  
Mark D. Tillman ◽  
Scott M. Schenker ◽  
Paul A. Borsa

2020 ◽  
Vol 185 (Supplement_1) ◽  
pp. 368-375 ◽  
Author(s):  
Colin W Bond ◽  
Jason C Dorman ◽  
Lisa N MacFadden ◽  
Thayne A Munce

ABSTRACT Introduction Proper jump-landing neuromuscular control is crucial in mitigating lower-extremity musculoskeletal injuries. The presence of fatigue, especially in extreme environments, may degrade dynamic postural stability (DPS) and result in lower-extremity injuries. This study aimed to evaluate the influence of moderate intensity exercise in hot (HOT) and temperate (TEMP) ambient temperatures and residual effects of a previous bout on DPS during a single-legged jump-landing. It was hypothesized that the participants would display worse DPS after HOT compared to TEMP. Methods Six recreationally active young males (16.8 ± 0.7 year, 1.88 ± 0.12 m, 83.8 ± 19.8 kg) completed two, 60-minute bouts of exercise with 60 minutes of rest between bouts in both HOT (35°C) and TEMP (22.2°C). Heart rate and core body temperature (Tc) were monitored continuously, and DPS was assessed before and after each bout. Results The DPS time and condition effects were not identified (p > 0.05), but HOT elicited some notable (d > 0.20) increases in heart rate, Tc, and DPS compared to TEMP. Conclusions The DPS decrements varied between subjects suggesting individual-specific etiology. Repeated bouts of exercise in HOT may place an individual at a greater risk for injury than TEMP if proper prevention strategies are not used.


Author(s):  
Dragan Marinkovic ◽  
Aleksandra Belic ◽  
Ana Marijanac ◽  
Ellis Martin-Wylie ◽  
Dejan Madic ◽  
...  

2003 ◽  
Vol 8 (3) ◽  
pp. 37-39 ◽  
Author(s):  
Thomas W. Kaminski ◽  
Scott E. Ross ◽  
Kevin M. Guskiewicz

2017 ◽  
Vol 53 ◽  
pp. 5-10 ◽  
Author(s):  
Digna de Kam ◽  
Jip. F. Kamphuis ◽  
Vivian Weerdesteyn ◽  
Alexander C.H. Geurts

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