Exercise intensity during an 8-day mountain bike marathon race.
The purpose of this descriptive study was to examine the exercise intensity of a mountain bike (MTB) marathon race lasting 8 days. Seven amateur MTBers (age 33.6 +/- 3.0 years, height 1.67 +/- 0.5 m, body mass 58.4 +/- 9.9 kg) completing the Transalp Challenge 2004 were involved in the study. Before the race subjects completed a maximal incremental cycling test to determine four intensity zones based on the heart rate (HR) corresponding to fixed blood lactate thresholds (2, 4 and 6 mmol/L). The exercise intensity during the Transalp Challenge 2004 was measured by using HR short telemetry systems. Mean HR was 85.4% of maximal HR during the race or 79.2% of laboratory determined maximum. Thirty-six percent of total race time was spent in the high and very-high intensity zones. The study showed that this MTB stage race is physiologically very demanding, heavily involving both the aerobic and anaerobic energy system.
Wirnitzer
Katharina C
KC
Department of Sport Science, University of Innsbruck, Innsbruck, Austria. katharina@wirnitzer.at
Kornexl
Elmar
E
D000328:Adult; D054874:Athletic Performance / Q000502:physiology*; D001317:Austria; D001642:Bicycling / Q000502:physiology*; D004734:Energy Metabolism / Q000502:physiology; D015444:Exercise / Q000502:physiology; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D007773:Lactates / Q000097:blood; D008297:Male; D010807:Physical Endurance / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology*; D013997:Time Factors
D007773:Lactates
Int J Sports Med. 2004 May;25(4):294-300
15162249
Br J Sports Med. 2004 Feb;38(1):55-9
14751947
Med Sci Sports Exerc. 2002 Nov;34(11):1808-13
12439087
Br J Sports Med. 2003 Feb;37(1):89-90
12547753
Med Sci Sports Exerc. 1994 Oct;26(10):1278-83
7799772
J Sports Sci. 2005 Jan;23(1):41-7
15841594
J Sports Sci Med. 2007 Jun 01;6(2):265-6
24137084
J Sports Sci. 1998 Jan;16 Suppl:S91-9
22587722
J Biomech Eng. 1997 Aug;119(3):248-53
9285337
J Sports Sci. 2006 Oct;24(10):1047-53
17115519
Med Sci Sports Exerc. 2006 Jan;38(1):147-51
16394967
Int J Sports Med. 1996 May;17(4):243-7
8814503
Med Sci Sports Exerc. 2000 Oct;32(10):1777-82
11039652
Int J Sports Med. 1997 Apr;18(3):197-200
9187974
Br J Sports Med. 2005 Oct;39(10):747-51
16183772
Int J Sports Med. 1985 Aug;6(4):197-201
4044103
Eur J Appl Physiol. 2008 Mar;102(4):431-8
17978835
Sports Med. 2007;37(1):59-71
17190536
Med Sci Sports Exerc. 2000 May;32(5):1002-6
10795793
Int J Sports Med. 2002 Oct;23(7):505-9
12402183
Med Sci Sports Exerc. 1996 Dec;28(12):1492-7
8970143
Med Sci Sports Exerc. 2001 Aug;33(8):1387-93
11474343
Med Sci Sports Exerc. 2003 Jul;35(7):1209-15
12840644
J Sports Sci. 2002 Dec;20(12):1001-8
12477010
Br J Sports Med. 2003;37(5):457-9
14514543
Med Sci Sports Exerc. 2001 May;33(5):796-802
11323551
Int J Sports Med. 1993 Aug;14(6):339-44
8407065
Int J Sports Med. 1999 Apr;20(3):167-72
10333093
Med Sci Sports Exerc. 2003 May;35(5):872-8
12750600
Sports Med. 1996 Feb;21(2):73-9
8775514