Sex differences in performance-matched marathon runners

Helgerud, Jan; Ingjer, Frank; Strømme, S. B.

doi:10.1007/bf00236064

Cited by 113 publications

(98 citation statements)

References 24 publications

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“…Third, male bicyclists are more likely than female bicyclists to stay away from routes on which parking is allowed. This may be a manifestation of male bicyclists traveling at higher speeds (see Helgerud et al, 1990). Finally, the parking type effects also indicate that parking is more of a deterrent in route choice for long commute trips (distance > 5 miles) relative to short commute trips and non-commute trips.…”

Section: On-street Parking Characteristicsmentioning

confidence: 93%

An analysis of bicycle route choice preferences in Texas, US

2009

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In the U.S., the rise in motorized vehicle travel has contributed to serious societal, environmental, economic, and public health problems. These problems have increased the interest in encouraging non-motorized modes of travel (walking and bicycling). The current study contributes toward this objective by identifying and evaluating the importance of attributes influencing bicyclists' route choice preferences. Specifically, the paper examines a comprehensive set of attributes that influence bicycle route choice, including: (1) bicyclists' characteristics, (2) on-street parking, (3) bicycle facility type and amenities, (4) roadway physical characteristics, (5) roadway functional characteristics, and (6)

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Section: On-street Parking Characteristicsmentioning

confidence: 93%

An analysis of bicycle route choice preferences in Texas, US

2009

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“…The running economy (RE) was calculated by measuring the VO2 from 2 to 3.5 min during the lactate profile test. The mean VO2 presented in ml/kg/min was the measure of the RE for the athlete (16).The RE was determined by measuring VO2 during the final 1.5 min of all standardized intensities.…”

Section: Methodsmentioning

confidence: 99%

“…An inclination of 1.7% was used for all physical capacity measurements to equalize the air resistance on the treadmill compared to running on the track. The inclination of 1.7% is a Norwegian standard for testing LT on the treadmill (7,16). Lactate was analyzed by taking blood samples into a capillary tube and thereafter injecting them into a lactate analyzer having a mixing chamber (1500 Sport, YSI Inc., The participants were matched according to their pre-test results in the performance test.…”

Section: Experimental Approach To the Problemmentioning

confidence: 99%

The Effect of High- vs. Low-Intensity Training on Aerobic Capacity in Well-Trained Male Middle-Distance Runners

Enoksen

Shalfawi²,

Tønnessen³

2011

Journal of Strength and Conditioning Research

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This file was dowloaded from the institutional repository Brage NIH -brage.bibsys.no/nih Enoksen, E., Shalfawi, S. A. I., Tønnessen, E. (2011). The effect of high-vs.low-intensity training on aerobic capacity in well-trained male middledistance runners. Journal of Strength and Conditioning Research,25, ABSTRACTThe purpose of this study was to examine the effect of two different intervention training regimes on VO2max, VO2max velocity (vVO2max), running economy (RE), lactic threshold velocity (vLT) and running performance on a group of well-trained male middle-distance runners in the pre-competition period. Twenty-six well-trained male middle-distance runners took part in the study. All participants were tested on VO2max, vVO2max, RE, lactate threshold (LT), vLT and a performance test. The participants were matched according to their pre-test results, then randomly assigned into one of two groups, a high volume (70 km) low intensity training group (HVLI-group); or a high-intensity low volume (50 km) training group (HILV-group). No significant differences were found between the two groups on all measures both before and after the intervention period. Furthermore, the HILV-group had a marked increased in vVO2max and vLT after the training period when compared to pre-test. Both groups had a marked improvement in RE. The performance test showed that the HILV-group made 456 m (1.38 min) and the HVLIgroup 273 m (54 sec) in progress. The production of lactic acid was notably higher in the HILVgroup (0.9 mmol) when compared to the pre-test. The findings show that male middle-distance runners tested in this study improved in vVO2max and vLT more when they train around LT than training with low intensity for a short period of 10 weeks.

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“…The Norwegian Biathlon Federation (s.a), recommend junior biathletes to train between 400 and 675 hours per year. Studies examining training intensity distribution among highly trained endurance athletes shows that 75% of training is performed at low intensity below the lactate threshold, [8][9][10][11][12][13][14][15][16][17] % is performed at intensity above lactate threshold (Seiler and Kjerland 2006), and thus only a small amount of training is performed at the lactate threshold. With such an extensive amount of training, distribution and regulation of exercise intensity is crucial to gain optimal effects of endurance training (Laursen 2010), and to avoid overtraining (Foster 1998).…”

Section: Introductionmentioning

confidence: 99%

“…Lactate threshold can be defined as the highest work -load, oxygen consumption or heart frequency in dynamic work using large muscle groups, where there is a balance between production and removal of lactate (Helgerud et al 1990). …”

Section: Introductionmentioning

confidence: 99%

The importance of heart rate monitors in controlling intensity during training and competition in junior biathlon athletes

Høydal

Nord

2017

jhse

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Purpose: This study examines whether junior athletes successfully regulate training intensity using subjective feeling, or whether heart rate monitor is necessary to regulate intensity. Methods: Nine active junior biathlon athletes, men (n = 6) and women (n = 3) between 16 and 19 years old participated in the study. All participants completed two training sessions at lactate threshold, one session regulated by subjective feeling, blinded for heart rate and one session regulated by heart rate. Results: The participants start the first ten minutes of the training session at lower intensity when blinded, compared to using HR monitors (ES, 0.98; P = 0.05). Registrations at 20 and 30 minutes shows that participants in the non-blinded session gradually tune in to the right intensity, and the differences get smaller and non-significant. Mean speed (ES, 0.61; P = 0.04) and distance covered (ES, 0.63; P = 0.04) during the training session is larger in the heart rate controlled session compared to subjective feeling. Conclusions: Using heart rate monitors provide better control of exercise intensity in young biathletes than subjective feeling. Using subjective feeling underestimate intensity at lactate threshold, and results in significantly, lower distance covered.

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Sex differences in performance-matched marathon runners

Cited by 113 publications

References 24 publications

An analysis of bicycle route choice preferences in Texas, US

An analysis of bicycle route choice preferences in Texas, US

The Effect of High- vs. Low-Intensity Training on Aerobic Capacity in Well-Trained Male Middle-Distance Runners

The importance of heart rate monitors in controlling intensity during training and competition in junior biathlon athletes

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