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Topic: Research

The new items published under this topic are as follows.

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What is the best fat burning exercise effort?

Posted by: pshields on Tuesday, February 04, 2003 - 06:27 AM 7100 Reads

Determination of the exercise intensity that elicits maximal fat oxidation.

Achten J, Gleeson M, Jeukendrup AE.

Med Sci Sports Exerc 2002 Jan;34(1):92-7

Human Performance Laboratory, School of Sport and Exercise Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom.

PURPOSE: The aim of this study was to develop a test protocol to determine the exercise intensity at which fat oxidation rate is maximal (Fat(max)).

High weight/low rep verses low weight/high rep - seems no difference for sprinters

Posted by: pshields on Sunday, February 02, 2003 - 08:16 AM 5510 Reads

Effect of the movement speed of resistance training exercises on sprint and strength performance in concurrently training elite junior sprinters.

J Sports Sci 2002 Dec;20(12):981-90

Blazevich AJ, Jenkins DG.

Department of Sport Sciences, Brunel University, UK.

The aim of this study was to determine the effects of 7 weeks of high- and low-velocity resistance training on strength and sprint running performance in nine male elite junior sprint runners (age 19.01.4 years, best 100 m times 10.890.21 s; mean s). The athletes continued their sprint training throughout the study, but their resistance training programme was replaced by one in which the movement velocities of hip extension and flexion, knee extension and flexion and squat exercises varied according to the loads lifted (i.e. 30-50% and 70-90% of 1-RM in the high- and low-velocity training groups, respectively).

Faster runners have less lower body flexibility

Posted by: pshields on Monday, January 27, 2003 - 05:32 AM 3680 Reads

Running economy is negatively related to sit-and-reach test performance in international-standard distance runners.

Jones AM.

Int J Sports Med 2002 Jan;23(1):40-3

Department of Exercise and Sport Science, Manchester Metropolitan University, Alsager, United Kingdom.

The purpose of this study was to investigate the relationship between running economy (RE) and lower body flexibility. Thirty-four international-standard male distance runners (mean s, age 27 5 years; body mass 64.9 4.2 kg; VO(2)max 72.8 3.7 ml x kg(-1) x min(-1)) gave written consent to participate in this study. The subjects performed an incremental treadmill test for the assessment of RE, lactate threshold and VO(2)max, and the sit-and-reach test was used to assess their general lower body and trunk flexibility.

Swimming is the key to short distance Triathlon success

Posted by: pshields on Monday, January 27, 2003 - 04:55 AM 3507 Reads

Physiological characteristics of elite short- and long-distance triathletes.

Millet GP, Dreano P, Bentley DJ.

Eur J Appl Physiol 2003 Jan;88(4-5):427-30

Laboratoire 'Sport, Performance, Sante', Faculte des Sciences du Sport, 700 Avenue du pic Saint Loup, 34090, Montpellier, France,

The purpose of this study was to compare the physiological responses in cycling and running of elite short-distance (ShD) and long-distance (LD) triathletes.

Eat a high carbohydrate meal 3 hours before your marathon

Posted by: pshields on Tuesday, January 21, 2003 - 03:01 AM 4678 Reads

The effect of a high carbohydrate meal on endurance running capacity.

Int J Sport Nutr Exerc Metab 2002 Jun;12(2):157-71

Chryssanthopoulos C, Williams C, Nowitz A, Kotsiopoulou C, Vleck V.

Department of Physical Education, Sports Science, and Recreation Management, Loughborough University, Loughborough LE11 3TU, UK.

This study examined the effects of a pre-exercise meal and a carbohydrate-electrolyte solution on endurance running capacity.

Breathe Right strips don't seem to help

Posted by: pshields on Thursday, January 16, 2003 - 04:11 AM 5489 Reads

Influence of changes in nasal ventilation on estimated workload during submaximal field running.

J Sports Med Phys Fitness 2002 Sep;42(3):295-9

Bourdin M, Sallet P, Dufour AB, Lacour JR.

Laboratoire de Physiologie de l'Exercice, GIP Exercice, Faculte de Medecine Lyon-Sud, Oullins Cedex, France.

BACKGROUND: Breathe Right (BR) external nasal dilator have become increasingly popular over the past few years, however, the physiological basis for using BR remains unclear. We have examined whether alteration in nasal ventilation would influence the metabolic cost of submaximal running.

Effects of creatine monohydrate supplementation during exercise

Posted by: pshields on Monday, January 13, 2003 - 03:20 AM 3818 Reads

Effects of creatine monohydrate supplementation during combined strength and high intensity rowing training on performance.

Syrotuik DG, Game AB, Gillies EM, Bell GJ.

Can J Appl Physiol 2001 Dec;26(6):527-42

Faculty of Physical Education and Recreation, University of Alberta, Edmonton, AB, Canada.

This study investigated the effect of creatine monohydrate (Cr) supplementation on performance and training volume in rowers.

Effect of cycling cadence immediately prior to running

Posted by: pshields on Wednesday, January 08, 2003 - 02:55 AM 3815 Reads

The acute effects of prior cycling cadence on running performance and kinematics.

Gottschall JS, Palmer BM.

Department of Kinesiology and Applied Physiology, University of Colorado, Campus Box 354, Boulder, CO 80309, USA.

Med Sci Sports Exerc 2002 Sep;34(9):1518-22

PURPOSE: To determine if cycling cadence affects subsequent running speed through changes in stride frequency.

Effects of different shoes on muscle activity in the lower legs

Posted by: pshields on Wednesday, January 08, 2003 - 02:43 AM 3639 Reads

Altering muscle activity in the lower extremities by running with different shoes.

Wakeling JM, Pascual SA, Nigg BM.  

Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, T2N 1N4, Canada.

Med Sci Sports Exerc 2002 Sep;34(9):1529-32

PURPOSE: To provide evidence that lower-extremity muscle activity during running is tuned in response to the loading rate of the impact forces at heel-strike.

Food intake and electrolyte status of ultramarathoners competing in extreme heat

Posted by: pshields on Friday, December 27, 2002 - 01:37 AM 3041 Reads

J Am Coll Nutr 2002 Dec;21(6):553-9

Food intake and electrolyte status of ultramarathoners competing in extreme heat.

Glace BW, Murphy CA, McHugh MP

Nicholas Institute of Sports Medicine and Athletic Trauma (B.W.G., M.P.M.), New York, New York.

OBJECTIVE: To relate changes in laboratory indices to dietary intake during extremely prolonged running and to determine if dietary intake influences the ability of runners to finish an 160 km trail race. METHODS: We monitored intake and serum chemistries of 26 runners competing in an 160 km foot race in temperatures which peaked at 38 degrees C. Blood was drawn pre-, mid- and post-race. Dietary intake and incidence of gastrointestinal distress or changes in mental status were determined by interview with runners approximately every 13 km. Twenty-three runners completed at least 88 kms and, of these 23 runners, 13 finished 160 km in a mean time of 26.2 3.6 hours.

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