The influence of maturation and sex on pelvis and hip kinematics in youth distance runners

2021 ◽  
Author(s):  
Jeffery A. Taylor-Haas ◽  
Jason T. Long ◽  
Micah C. Garcia ◽  
Mitchell J. Rauh ◽  
Mark V. Paterno ◽  
...  
Keyword(s):  
Distance Runners ◽  
Hip Kinematics

The Relationship Between Hip Kinematics and Iliotibial Band Syndrome (ITBS) in Long Distance Runners: A Critically Appraised Topic

2016 ◽  
Vol 21 (4) ◽  
pp. 5-11
Author(s):  
Janice K. Loudon ◽  
Marcie Swift
Keyword(s):  
Lower Extremity ◽  
Iliotibial Band ◽  
Clinical Question ◽  
Distance Runners ◽  
Long Distance ◽  
Bottom Line ◽  
Iliotibial Band Syndrome ◽  
History Of ◽  
Hip Kinematics ◽  
The Relationship

Clinical Question:Is there evidence to suggest that runners with a history of ITBS demonstrate altered lower extremity kinematics compared with runners without a history of ITBS?Clinical Bottom Line:There is moderate evidence suggesting that hip kinematics differ between runners with a history of ITBS compared with healthy runners. Results are contradictory related to the plane of movement and direction of the kinematic change. In addition, assessing hip kinematics following an exhaustive run may be beneficial to detect change.

Personality Assessment of The Elite Women Long Distance Runners of India

2011 ◽  
Vol 4 (5) ◽  
pp. 561-564
Author(s):  
Annu Annu ◽  
◽  
Vijay Kumar ◽  
Malkeet Kaur ◽  
Neha Sharma ◽  
...  
Keyword(s):  
Personality Assessment ◽  
Distance Runners ◽  
Long Distance

Comparison of Two Tests to Determine the Maximal Aerobic Speed

2020 ◽  
Vol 60 (2) ◽  
pp. 252-262
Author(s):  
Benhammou Saddek ◽  
Jérémy B.J. Coquart ◽  
Laurent Mourot ◽  
Belkadi Adel ◽  
Mokkedes Moulay Idriss ◽  
...  
Keyword(s):  
Physiological Responses ◽  
Intraclass Correlation ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
Random Order ◽  
Standard Test ◽  
Maximal Heart Rate ◽  
Distance Runners ◽  
Gold Standard Test ◽  
Maximal Aerobic Speed

SummaryThe aims of this study were (a): to compare maximal physiological responses (maximal heart rate: HRmax and blood lactate concentration: [La-]) and maximal aerobic speed (MAS) achieved during a gold standard test (T-VAM) to those during a new test entitled: the 150-50 Intermittent Test (150-50IT), and (b): to test the reliability of the 150-50IT. Eighteen middle-distance runners performed, in a random order, the T-VAM and the 150-50IT. Moreover, the runners performed a second 150-50IT (retest). The results of this study showed that the MAS obtained during 150-50IT were significantly higher than the MAS during the T-VAM (19.1 ± 0.9 vs. 17.9 ± 0.9 km.h−1, p < 0.001). There was also significant higher values in HRmax (193 ± 4 vs. 191 ± 2 bpm, p = 0.011), [La-] (11.4 ± 0.4 vs. 11.0 ± 0.5 mmol.L−1, p = 0.039) during the 150-50IT. Nevertheless, significant correlations were noted for MAS (r = 0.71, p = 0.001) and HRmax (r = 0.63, p = 0.007). MAS obtained during the first 150-50IT and the retest were not significantly different (p = 0.76) and were significantly correlated (r = 0.94, p < 0.001, intraclass correlation coefficient = 0.93 and coefficient of variation = 6.8 %). In conclusion, the 150-50IT is highly reproducible, but the maximal physiological responses derived from both tests cannot be interchangeable in the design of training programs.

TRAINING TRENDS AND INJURY INCIDENCES AMONG IRISH DISTANCE RUNNERS

2017 ◽  
Vol 51 (4) ◽  
pp. 324.3-325
Author(s):  
Colin Griffin ◽  
Brendan Egan ◽  
Catherine Blake ◽  
Peter Horgan
Keyword(s):  
Distance Runners

scholarly journals Steady-state $$\dot{V}{\text{O}}_{2}$$ above MLSS: evidence that critical speed better represents maximal metabolic steady state in well-trained runners

2021 ◽  
Author(s):  
Rebekah J. Nixon ◽  
Sascha H. Kranen ◽  
Anni Vanhatalo ◽  
Andrew M. Jones
Keyword(s):  
Steady State ◽  
Critical Speed ◽  
Lactate Concentration ◽  
Practical Interest ◽  
Blood Lactate Concentration ◽  
Distance Runners ◽  
Severe Intensity ◽  
The Stability ◽  
Trained Runners ◽  
Over Time

AbstractThe metabolic boundary separating the heavy-intensity and severe-intensity exercise domains is of scientific and practical interest but there is controversy concerning whether the maximal lactate steady state (MLSS) or critical power (synonymous with critical speed, CS) better represents this boundary. We measured the running speeds at MLSS and CS and investigated their ability to discriminate speeds at which $$\dot{V}{\text{O}}_{2}$$ V ˙ O 2 was stable over time from speeds at which a steady-state $$\dot{V}{\text{O}}_{2}$$ V ˙ O 2 could not be established. Ten well-trained male distance runners completed 9–12 constant-speed treadmill tests, including 3–5 runs of up to 30-min duration for the assessment of MLSS and at least 4 runs performed to the limit of tolerance for assessment of CS. The running speeds at CS and MLSS were significantly different (16.4 ± 1.3 vs. 15.2 ± 0.9 km/h, respectively; P < 0.001). Blood lactate concentration was higher and increased with time at a speed 0.5 km/h higher than MLSS compared to MLSS (P < 0.01); however, pulmonary $$\dot{V}{\text{O}}_{2}$$ V ˙ O 2 did not change significantly between 10 and 30 min at either MLSS or MLSS + 0.5 km/h. In contrast, $$\dot{V}{\text{O}}_{2}$$ V ˙ O 2 increased significantly over time and reached $$\dot{V}{\text{O}}_{2\,\,\max }$$ V ˙ O 2 max at end-exercise at a speed ~ 0.4 km/h above CS (P < 0.05) but remained stable at a speed ~ 0.5 km/h below CS. The stability of $$\dot{V}{\text{O}}_{2}$$ V ˙ O 2 at a speed exceeding MLSS suggests that MLSS underestimates the maximal metabolic steady state. These results indicate that CS more closely represents the maximal metabolic steady state when the latter is appropriately defined according to the ability to stabilise pulmonary $$\dot{V}{\text{O}}_{2}$$ V ˙ O 2 .

Blood lactate and glycerol after 400-m and 3,000-m runs in sprint and long distance runners

1984 ◽  
Vol 53 (3) ◽  
pp. 213-218 ◽  
Author(s):  
Tetsuo Ohkuwa ◽  
Yoshinobu Kato ◽  
Koichi Katsumata ◽  
Takayuki Nakao ◽  
Miharu Miyamura
Keyword(s):  
Blood Lactate ◽  
Distance Runners ◽  
Long Distance

scholarly journals Analysis of the Impact of a Multi-Strain Probiotic on Body Composition and Cardiorespiratory Fitness in Long-Distance Runners

Nutrients ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3758
Author(s):  
Joanna Smarkusz-Zarzecka ◽  
Lucyna Ostrowska ◽  
Joanna Leszczyńska ◽  
Karolina Orywal ◽  
Urszula Cwalina ◽  
...  
Keyword(s):  
Body Composition ◽  
Cardiorespiratory Fitness ◽  
The Body ◽  
Double Blind Study ◽  
Distance Runners ◽  
Long Distance ◽  
Double Blind ◽  
Necrosis Factor Alpha ◽  
Total Body ◽  
The Impact

Use of probiotic supplements, the benefits of which have not been proven in sportspeople, is becoming more widespread among runners. The aim of this study was to evaluate the effect of a multi-strain probiotic on body composition, cardiorespiratory fitness and inflammation in the body. The randomised, double-blind study included 66 long-distance runners. The intervention factor was a multi-strain probiotic or placebo. At the initial and final stages of the study, evaluation of body composition and cardiorespiratory fitness was performed and the presence of inflammation determined. In the group of men using the probiotic, an increase in lean body mass (p = 0.019) and skeletal muscle mass (p = 0.022) was demonstrated, while in the group of women taking the probiotic, a decrease in the content of total body fat (p = 0.600) and visceral fat (p = 0.247) was observed. Maximum oxygen consumption (VO2max) increased in women (p = 0.140) and men (p = 0.017) using the probiotic. Concentration of tumour necrosis factor-alpha decreased in women (p = 0.003) and men (p = 0.001) using the probiotic and in women (p = 0.074) and men (p = 0.016) using the placebo. Probiotic therapy had a positive effect on selected parameters of body composition and cardiorespiratory fitness of study participants and showed a tendency to reduce inflammation.

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