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Topic: Research

The new items published under this topic are as follows.

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Heart-rate recommendations between cycling and running

Posted by: pshields on Friday, May 30, 2003 - 04:07 AM 1891 Reads
Research

Heart-rate recommendations: transfer between running and cycling exercise?

Roecker K, Striegel H, Dickhuth HH.

Int J Sports Med 2003 Apr;24(3):173-8

Medical Clinic and Polyclinic, University of Freiburg, Department of Rehabilitative and Preventive Sports Medicine, Freiburg, Germany. kai.roecker@msm1.ukl.uni-freiburg.de

With the expanding use of portable heart rate (HR) monitors in endurance sports, HR is increasingly used as a marker for exercise intensity. Hereby, HR at the so-called individual anaerobic threshold (IAT) is one possible reference point. However, once determined, it is often attempted to apply HR recommendations from one type of ergometry to different kinds of exercises.



Note: Anaerobic Thresholds seem to vary between sports :- Paul

Physiological cost of running while wearing spring-boots

Posted by: pshields on Wednesday, May 28, 2003 - 04:05 AM 1835 Reads
Research

Physiological cost of running while wearing spring-boots.

Mercer JA, Branks DA, Wasserman SK, Ross CM.

J Strength Cond Res 2003 May;17(2):314-8

Department of Kinesiology, University of Nevada, Las Vegas, Las Vegas, Nevada 89154.

The purpose of the study was to investigate the physiological cost of running in spring-boots compared with running in running shoes at different speeds.



Note: It seems running in spring boots is just as easy as running in runners, with less impact stress :- Paul

Longitudinal analysis of lactate threshold in masters athletes

Posted by: pshields on Monday, May 26, 2003 - 04:06 AM 1777 Reads
Research

Longitudinal analysis of lactate threshold in male and female master athletes.

Marcell TJ, Hawkins SA, Tarpenning KM, Hyslop DM, Wiswell RA.

Med Sci Sports Exerc 2003 May;35(5):810-7

Kronos Longevity Research Institute, Phoenix, AZ 85018, USA. marcell@kronosinstitute.org

PURPOSE: The lack of relationship between lactate threshold (LT) and running performance in older runners, and the increase in LT with age, has not been previously studied in a longitudinal design. We evaluated the cross-sectional and longitudinal changes in LT with age and compared the changes in LT with changes in performance variables.



Note: Lactate Threshold is not as good a determiner of exercise intensity in older athletes as VO2max :- Paul

Effectiveness of cycle cross-training between competitive seasons

Posted by: pshields on Saturday, May 24, 2003 - 04:21 AM 1995 Reads
Research

Effectiveness of cycle cross-training between competitive seasons in female distance runners.

White LJ, Dressendorfer RH, Muller SM, Ferguson MA.

J Strength Cond Res 2003 May;17(2):319-23

California Polytechnic State University, San Luis Obispo, California 93407.

The purpose of this study was to examine whether substituting 50% of run training volume with cycling ("cross-training") would maintain 3,000-m race time and estimated VO2max in competitive female distance runners during a 5-week recuperative phase.



Note: Cycling 50% of the time during the offseason won't detract from your running performance :- Paul

Optimising high-intensity treadmill training using the running speed at VO2max

Posted by: pshields on Thursday, May 22, 2003 - 04:12 AM 3188 Reads
Research

Optimising high-intensity treadmill training using the running speed at maximal O(2) uptake and the time for which this can be maintained.

Smith TP, Coombes JS, Geraghty DP.

Eur J Appl Physiol 2003 May;89(3-4):337-43

School of Human Life Sciences, University of Tasmania, 7250, Launceston, Tasmania, Australia.

The aim of this study was to compare the effects of two high-intensity, treadmill interval-training programs on 3000-m and 5000-m running performance.



Note: It seems that training at 60% of your time to exhaustion at vVO2max is better than intervals at 70% for 3000m runners :- Paul

American Orthopedic Foot and Ankle Society

Posted by: pshields on Friday, May 09, 2003 - 12:04 AM 1707 Reads
Research
The American Orthopedic Foot and Ankle Society,
have put together a survey on running injuries and shoes to be used in
studies of the these injuries.



Running training and adaptive strategies of locomotor-respiratory coordination

Posted by: pshields on Wednesday, May 07, 2003 - 04:04 AM 1860 Reads
Research

Running training and adaptive strategies of locomotor-respiratory coordination.

McDermott WJ, Van Emmerik RE, Hamill J.

Department of Exercise Science, University of Massachusetts, 110 Totman Building, MA 01003, Amherst, USA.

Eur J Appl Physiol 2003 Apr 24;

It has been suggested that stronger coupling between locomotory and breathing rhythms may occur as a result of training in the particular movement pattern and also may reduce the perceived workload or metabolic cost of the movement.



Note: It seems runners are better at changing breathing patterns to match running speed:- Paul

Neuroprotection associated with running

Posted by: pshields on Tuesday, April 29, 2003 - 04:11 AM 1699 Reads
Research

Neuroprotection associated with running: is it a result of increased endogenous neurotrophic factors?

Ang ET, Wong PT, Moochhala S, Ng YK.

Department of Anatomy, Faculty of Medicine, National University of Singapore, Defence Medical Research Institute,MD10, 4 Medical Drive, 10 Kent Ridge Crescent, 117597, Singapore

Neuroscience 2003;118(2):335-45

The possible neuroprotective effect of physical exercise was investigated in rats after middle cerebral artery occlusion (MCAO), a focal stroke model. It was found that physical exercise in the form of a 12-week treadmill running programme reduced the volume of infarction caused by MCAO.



Note: It seems runners loose less brain cells than non-runners (at least in rats anyway!):- Paul

Post-exercise vitamin C supplementation and recovery from demanding exercise

Posted by: pshields on Friday, April 25, 2003 - 04:24 AM 2301 Reads
Research

Post-exercise vitamin C supplementation and recovery from demanding exercise.

Thompson D, Williams C, Garcia-Roves P, McGregor SJ, McArdle F, Jackson MJ.

Department of Sport and Exercise Science, University of Bath, BA2 7AY, Bath, UK.

Eur J Appl Physiol 2003 Apr 1; [epub ahead of print]

The aim of this study was to investigate whether post-exercise vitamin C supplementation influences recovery from an unaccustomed bout of exercise.



Note: Again Vitamin C supplementation seems not to aid the recovery process:- Paul

Effect of cycling cadence on subsequent 3 km running performance

Posted by: pshields on Tuesday, April 08, 2003 - 05:16 AM 1727 Reads
Research

Effect of cycling cadence on subsequent 3 km running performance in well trained triathletes.

Bernard T, Vercruyssen F, Grego F, Hausswirth C, Lepers R, Vallier JM, Brisswalter J.

Br J Sports Med 2003 Apr;37(2):154-159

Ergonomie et performance sportive, UFR STAPS, Universite de Toulon-Var, France. Laboratoire de physiologie et biomecanique, INSEP, Paris, France. Groupe analyse du mouvement, UFR STAPS, Universite de Bourgogne, France. Chair, Medical and Research Committee of the European Triathlon Union and Senior Lecturer, School of Chemical and Life Sciences, University of Greenwich, London, UK Veronica@vleck.fsnet.co.uk

OBJECTIVES: To investigate the effect of three cycling cadences on a subsequent 3000 m track running performance in well trained triathletes.



Note: Interesting - indicates that cadence has little impact on running performance after cycling. (Paul)

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