scholarly journals Association Between Implementation of the Athlete Biological Passport and Female Elite Runners’ Performance

2020 ◽  
Vol 15 (9) ◽  
pp. 1231-1236 ◽  
Author(s):  
Sergei Iljukov ◽  
Jukka-Pekka Kauppi ◽  
Arja L.T. Uusitalo ◽  
Juha E. Peltonen ◽  
Yorck O. Schumacher
Keyword(s):  
Retrospective Analysis ◽  
International Competition ◽  
Distance Runners ◽  
Long Distance ◽  
Significant Deterioration ◽  
Relative Decrease ◽  
Biological Passport ◽  
Before And After ◽  
Significant Change ◽  
Elite Runners

The purpose of this research was to evaluate the performances of female middle- and long-distance runners before and after the implementation of a new antidoping strategy (the Athlete Biological Passport [ABP]) in a country accused of systematic doping. A retrospective analysis of the results of Russian National Championships from 2008 to 2017 was performed. The 8 best female performances for the 800-m, 1500-m, 3000-m steeplechase, 5000-m, and 10,000-m events from the semifinals and finals were analyzed. The yearly number of athletes fulfilling standard qualifications for international competitions was also evaluated. Overall, numbers of athletes banned for doping in 2008–2017 were calculated. As a result, 4 events (800, 1500, 5000 [all P < .001], and 10,000 m [P < .01]) out of 5 showed statistically significant deterioration in the performances when comparing before and after the introduction of the ABP. The 3000-m steeplechase was the only event that did not show statistically significant change. The highest relative decrease in the number of runners who met standard qualification for international competition was for the 5000-m event (46%), followed by 1500-m (42%), 800-m (38%), 10,000-m (17%), and 3000-m steeplechase (1%). In conclusion, implementation of the ABP was followed by a significant reduction in the performance of female runners in a country accused of systematic doping. It can be reasonably speculated that more stringent antidoping testing, more specifically the introduction of the ABP, is a key reason for this reduction.

scholarly journals The efectiveness of therapeutic massage in professional long-distance runners - case study

2014 ◽  
Vol 8 (4) ◽  
pp. 35-38
Author(s):  
Iwona Wilk
Keyword(s):  
Training Session ◽  
Distance Runners ◽  
Connective Tissues ◽  
Long Distance ◽  
Indirect Contact ◽  
Comprehensive Therapy ◽  
Injured Area ◽  
Before And After ◽  
Coaching Methods ◽  
Reduction Of Pain

Background: Regardless of the sport discipline, the rules of prophylaxis, coaching methods and experience, injuries and contusions in athletes occur. They are inevitable, and when they eventually appear, a comprehensive therapy should be applied to avoid complications and further injuries.Material and methods: A female runner was given a classical massage, before and after the training session each of 10 minutes and, additionally, two sessions of 45-minute-tensegrity massage. Two diferent confgurations were worked out (I and II) because only selected connective tissues were intensively sensitive to compression. Results: After the classical massage the decrease in pain of fbular muscles (peroneus longus and brevis) was achieved, however, after the tensegrity massage the reduction of pain in inguinale ligaments was additionally observed. The massage of the tissues being in direct and indirect contact with the injured area resulted in complete pain elimination.Conclusions: Tensegrity massage can be used in the cases of connective tissue injuries and other mild injuries which are found in athletes. The choice of the type of the massage always depends on current symptoms and needs of the athletes. The therapy ought to be completed with the education on the preventive activities which athletes should follow. Keywords: classical and tensegrity massage, injury, pain

scholarly journals Interval Hypoxic Training Enhances Athletic Performance and Does Not Adversely Affect Immune Function in Middle- and Long-Distance Runners

2020 ◽  
Vol 17 (6) ◽  
pp. 1934
Author(s):  
Won-Sang Jung ◽  
Sung-Woo Kim ◽  
Hun-Young Park
Keyword(s):  
Oxygen Uptake ◽  
Immune Function ◽  
Athletic Performance ◽  
High Frequency ◽  
Training Group ◽  
Distance Runners ◽  
Long Distance ◽  
Hypoxic Training ◽  
Before And After ◽  
Hemodynamic Function

This study evaluated the effects of intermittent interval training in hypoxic conditions for six weeks compared with normoxic conditions, on hemodynamic function, autonomic nervous system (ANS) function, immune function, and athletic performance in middle- and long-distance runners. Twenty athletes were divided into normoxic training (normoxic training group (NTG); n = 10; residing and training at sea level) and hypoxic training (hypoxic training group (HTG); n = 10; residing at sea level but training in 526-mmHg hypobaric hypoxia) groups. All dependent variables were measured before, and after, training. The training frequency was 90 min, 3 d per week for six weeks. Body composition showed no significant difference between the two groups. However, the HTG showed more significantly improved athletic performance (e.g., maximal oxygen uptake). The hemodynamic function (e.g., oxygen uptake, oxygen pulse, and cardiac output) during submaximal exercise and ANS function (e.g., standard deviation and root mean square of successive differences, high frequency, and low/high frequency) improved more in the HTG. Immune function parameters were stable within the normal range before and after training in both groups. Therefore, hypoxic training was more effective in enhancing athletic performance, and improving hemodynamic and ANS function; further, it did not adversely affect immune function in competitive runners.

Creatine kinase isoenzyme MM variants in skeletal muscle and plasma from marathon runners.

1986 ◽  
Vol 32 (1) ◽  
pp. 41-44 ◽  
Author(s):  
F S Apple ◽  
M A Rogers ◽  
J L Ivy
Keyword(s):  
Skeletal Muscle ◽  
Creatine Kinase ◽  
Strenuous Exercise ◽  
Variant Form ◽  
Distance Runners ◽  
Long Distance ◽  
Marathon Runners ◽  
Creatine Kinase Isoenzyme ◽  
Before And After

Abstract We investigated the patterns of variants of creatine kinase isoenzyme MM (CK-MM) in gastrocnemius muscle and plasma sampled from male and female long-distance runners before and after a marathon race. The proportions of CK-MM variants MM1 (pI 6.90) and MM2 (pI 6.62), identified in the skeletal muscle from both sexes, did not differ significantly from those in skeletal muscle from nonrunning controls or from heart muscle. CK-MM1 was the major (84-85% of total CK-MM) variant form. Patterns of CK-MM in plasma collected from male runners 24, 48, 72, and 96 h after the race were similar to those for female runners, but we detected two new additional variants, which we designate MM1B (pI 6.76) and MM2B (pI 6.49). For both sexes the total CK-MM activities in plasma were significantly (p less than 0.05) greater after the race, but the women's total CK-MM activities were significantly (p less than 0.05) less than the men's. The rates of disappearance of MM1, MM2, and MM3 from plasma after the race differed significantly (p less than 0.05) between men and women, MM1 clearing the fastest. Determination of the CK-MM variants in plasma after strenuous exercise may be of help in assessing CK release from injured skeletal muscle.

Hormonal and Neuromuscular Responses to High-Level Middle- and Long-Distance Competition

2014 ◽  
Vol 9 (5) ◽  
pp. 839-844 ◽  
Author(s):  
Carlos Balsalobre-Fernández ◽  
Carlos Ma Tejero-González ◽  
Juan del Campo-Vecino
Keyword(s):  
Perceived Exertion ◽  
Baseline Period ◽  
Rating Of Perceived Exertion ◽  
Distance Runners ◽  
Long Distance ◽  
Free Cortisol ◽  
Before And After ◽  
Neuromuscular Responses ◽  
Cortisol Levels ◽  
High Level

Purpose:The purpose of this study was to analyze the effects of high-level competition on salivary free cortisol, countermovement jump (CMJ), and rating of perceived exertion (RPE) and the relationships between these fatigue indicators in a group of elite middle- and long-distance runners.Method:The salivary free cortisol levels and CMJ height of 10 high-level middle- and long-distance runners (7 men, 3 women; age 27.6 ± 5.1y) competing in 800-m, 1500-m, 3000-m, or 5000-m events in the 2013 Spanish National Championships were measured throughout a 4-wk baseline period, then again before and after their respective races on the day of the competition. Athletes’ RPE was also measured after their races.Results:Cortisol increased significantly after the race compared with the value measured 90 min before the race (+98.3%, g = 0.82, P < .05), while CMJ height decreased significantly after the race (–3.9%, g = 0.34, P < .05). The decrease in CMJ height after the race correlates significantly with the postcompetition cortisol increase (r = .782, P < .05) and the RPE assessment (r = .762, P < .01).Conclusions:Observed differences in CMJ height correlate significantly with salivary free cortisol levels and RPE of middle- and long-distance runners. These results show the suitability of the CMJ for monitoring multifactorial competition responses in high-level middle- and long-distance runners.

scholarly journals The legend of plantar neuropraxia in long-distance athletes

2013 ◽  
Vol 25 (2) ◽  
pp. 51
Author(s):  
DS Kellogg ◽  
J Joslin
Keyword(s):  
Tuning Fork ◽  
Endurance Athletes ◽  
Foot Pain ◽  
Distance Runners ◽  
Long Distance ◽  
Sensory Deficits ◽  
Long Distance Running ◽  
Adult Participants ◽  
Before And After ◽  
Neurosensory Testing

Background. Legend has it that endurance athletes who develop plantar foot pain during long-distance running frequently experience an eventual relief of pain due to a transient neuropraxia brought on by continued activity.Objective. To evaluate the nature of this legend, we assessed long-distance runners for the presence of sensory deficits before and after completion of an ultramarathon, expecting to find an induced neuropraxia  and abnormal sensory results.Methods. Twenty-five adult participants of an ultramarathon were evaluated prior to their 50/100 km run and again upon completion of the race. Neurosensory testing was performed using a 10 g monofilament at 4 locations on each foot and a 128 Hz tuning fork at one location on each foot. The same techniques were used prior to, and at conclusion of the race.Results. We detected no neuropraxia or sensory deficits in any participant, despite reports by the same subjects that they had experienced the phenomenon during the race. While runners commonly report losing sensation in their feet during long runs, we were unable to demonstrate any sensory deficit with simple field-based testing.Conclusion. We believe that there is room for additional research to be performed using more sensitive means of neurosensory evaluation.

scholarly journals Changes in The Functional Parameters of Balance and Lower Extremities of Adolescent Short and Long-Distance Runners After Exercises on Unstable Surfaces

2019 ◽  
Vol 2 (113) ◽  
Author(s):  
Miglė Bielskytė ◽  
Toma Petkutė ◽  
Renata Žumbakytė-Šermukšnienė
Keyword(s):  
Muscle Strength ◽  
Lower Extremity ◽  
Lower Extremities ◽  
Calf Muscle ◽  
Distance Runner ◽  
Test Results ◽  
Distance Runners ◽  
Long Distance ◽  
Balance Test ◽  
Before And After

Background. Results from the previous studies indicated benefits of training on unstable surfaces in various populations. Drawing upon them we hypothesized that training on unstable surfaces would help runners improve balance and lower extremity functional indicators.Methods. The study included 20 adolescent athletes from Kaunas sports school “Startas”, aged 12–13 years, boys and girls running short and long distances. Their training consisted of 20 minute exercises on unstable surfaces performed two times a week. Participants were tested before and after applying the program. The tests applied were Y balance test, calf muscle strength testing with a Lafayette dynamometer, Single-legged Hop tests, T-test.Results. Groups of short- and long- distance runners had better (p < .05) calf muscle strength of both legs after exercises on unstable surfaces program. Both groups also improved 6 m HOP test results of both lower extremities (p < .05). Some of the dynamic balance indicators statistically significantly improved after exercises on unstable surfaces in the groups of short- and long- distance adolescent runners. T-test results after exercises on unstable surface program improved (p < .05) in long- distance runner group (from 14.03 (12.44; 14.95; 13.85) s to 13.94 (12.36; 14.52; 13.65) s) and there were differences between short- and long- distance runner groups before and after exercises on unstable surfaces (p < .05).Conclusion. This research showed that training on unstable surfaces helps runners to improve balance and lower extremity functional indicators and we recommend to include exercises on unstable surfaces to their training.

scholarly journals The legend of plantar neuropraxia in long-distance athletes

2013 ◽  
Vol 25 (2) ◽  
pp. 51
Author(s):  
DS Kellogg ◽  
J Joslin
Keyword(s):  
Tuning Fork ◽  
Endurance Athletes ◽  
Foot Pain ◽  
Distance Runners ◽  
Long Distance ◽  
Sensory Deficits ◽  
Long Distance Running ◽  
Adult Participants ◽  
Before And After ◽  
Neurosensory Testing

Background. Legend has it that endurance athletes who develop plantar foot pain during long-distance running frequently experience an eventual relief of pain due to a transient neuropraxia brought on by continued activity.Objective. To evaluate the nature of this legend, we assessed long-distance runners for the presence of sensory deficits before and after completion of an ultramarathon, expecting to find an induced neuropraxia  and abnormal sensory results.Methods. Twenty-five adult participants of an ultramarathon were evaluated prior to their 50/100 km run and again upon completion of the race. Neurosensory testing was performed using a 10 g monofilament at 4 locations on each foot and a 128 Hz tuning fork at one location on each foot. The same techniques were used prior to, and at conclusion of the race.Results. We detected no neuropraxia or sensory deficits in any participant, despite reports by the same subjects that they had experienced the phenomenon during the race. While runners commonly report losing sensation in their feet during long runs, we were unable to demonstrate any sensory deficit with simple field-based testing.Conclusion. We believe that there is room for additional research to be performed using more sensitive means of neurosensory evaluation.

Effects of Altitude on Performance of Elite Track-and-Field Athletes

2015 ◽  
Vol 10 (7) ◽  
pp. 881-887 ◽  
Author(s):  
Michael J. Hamlin ◽  
Will G. Hopkins ◽  
Stephen C. Hollings
Keyword(s):  
Linear Model ◽  
Fixed Effects ◽  
Mixed Linear Model ◽  
Track And Field ◽  
International Competition ◽  
Distance Runners ◽  
Long Distance ◽  
Long Jump ◽  
Quadratic Effects ◽  
Marginal Improvement

Purpose:Lower barometric air pressure at altitude can affect competitive performance of athletes in some sports. Reported here are the effects of various altitudes on elite track-and-field athletes’ performance.Methods:Lifetime track-and-field performances of athletes placed in the top 16 in at least 1 major international competition between 2000 and 2009 were downloaded from the database at tilastopaja.org. There were 132,104 performances of 1889 athletes at 794 venues. Performances were logtransformed and analyzed using a mixed linear model with fixed effects for 6 levels of altitude and random quadratic effects to adjust for athlete age.Results:Men’s and women’s sprint events (100–400 m) showed marginal improvements of ~0.2% at altitudes of 500–999 m, and above 1500 m all but the 100- and 110-m hurdles showed substantial improvements of 0.3–0.7%. Some middle- and long-distance events (800–10,000 m) showed marginal impairments at altitudes above 150 m, but above 1000 m the impairments increased dramatically to ~2–4% for events >800 m. There was no consistent trend in the effects of altitude on field events up to 1000 m; above 1000 m, hammer throw showed a marginal improvement of ~1% and discus was impaired by 1–2%. Above 1500 m, triple jump and long jump showed marginal improvements of ~1%.Conclusions:In middle- and long-distance runners, altitudes as low as 150 to 299 m can impair performance. Higher altitudes (≥1000 m) are generally required before decreases in discus performance or enhancements in sprinting, triple and long jump, or hammer throw are seen.

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