Mitchell and Huston (1993) The effect of high- and low-intensity warm-up on the physiological responses to a standardized swim and tethered swimming performance

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The effect of high- and low-intensity warm-up on the physiological responses to a standardized swim and tethered swimming performance

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CONTRIBUTORS:

	Author:	Mitchell, J. B.
	Author:	Huston, J. S.

JOURNAL:

Journal of Sports Sciences (JSS), 11(2), ?? - ??.

YEAR:

1993

PUB TYPE:

Journal Article

SUBJECT(S):

SWIMMING; TETHERED-SWIMMING; ANAEROBIC-METABOLISM; ADAPTATION; COMPARATIVE-STUDY; ACHIEVEMENT; MAN; LACTATE; HEART-RATE

DISCIPLINE:

No discipline assigned

HTTP:

LANGUAGE:

English

PUB ID:

103-366-378 (Last edited on 2002/02/27 18:45:01 US/Mountain)

SPONSOR(S):

ABSTRACT:
This investigation was conducted to determine the effect of high- and low-intensity warm-ups on physiological responses, lactate accumulation, and high-intensity freestyle and tethered swimming performance. Ten male collegiate swimmers were tested for maximal oxygen uptake (VO2max) followed by two series of three warm-up protocols performed in a randomized order at least 2 days apart. The warm-up protocols were: (1) no warm-up (NWU), (2) a 366-m swim at 70 percent VO2max (LWU) and (3) four 46-m swims at 1-min intervals at a speed corresponding to 110 percent VO2max (HWU). Five minutes after each warm-up in the first series, the swimmers swam a 183-m standardized freestyle swim at a velocity corresponding to 110 percent VO2max, and 5 min after each warm-up in the second series the swimmers completed a tethered swim to exhaustion with a weight attached to the tethered swim, a finger-prick blood sample for lactate measurement was obtained. Heart rate and VO2 were also measured during the warm-up and the standardized and tethered swims. The performance times in the tethered swim were not significantly different between the three conditions (116.8 plus 46.8, 137 plus/minus 53.3 and 122.94 plus/minus 37.2 s for the NWU, LWU and HWU, respectively). Following the WU, the lactate for the HWU (6.97 plus/minus 1.97 and 6.15 plus/minus 1.86 mM) was significantly elevated compared to the NWu (1.73 plus/minus 0.61 and 1.56 plus/minus 0.66 mM) and LWU (2.27 plus/minus 0.81 and 2.44 plus/minus 0.81 mM) for both the standardized and tethered swimming conditions. In addition, lactate after the standardized swim was significantly elevated in the HWU (13.55 plus 2.66 mM) compared to the NWU and LWU (9.53 plus/minus 2.22 and 10.04 plus/minus 2.15 mM, respectively). The results indicated that varying the intensity of the warm-up protocol can elevate lactate, but does not affect performance. In addition, there appears to be no beneficial effect on performance of an intensity-specific warm-up compared to a low-intensity or no warm-up.

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