### Abstract

The present study evaluated the accuracy of predicting velocity and oxygen consumption (V̇O_{2}) at the LT lactate threshold and FBLC fixed blood lactate concentrations from a 3200-m time trial in women. Forty-four women (x̄ age=31.1 yrs, x̄ ht=164.9 cm, x̄ wt=65.0 kg) completed a treadmill protocol for the determination of LT and FBLC and a 3200-m time trial. Velocity and V̇O_{2} values at LT, FBLC of 2.0, 2.5, and 4.0 mM, and peak were determined. Mean V̇O_{2} and velocity ranged from 27.8±10.8 ml/kg·min^{-1} at LT to 42.5 ml/kg·min^{-1} at peak and from 129.8±44.0 m·min^{-1} at LT to 187.0±52.4 m·min^{-1} at peak, respectively. Results indicated that a 3200-m time trial (x̄ time=20.6±6.6 min) was a good predictor of V̇O_{2} and velocity at LT, FBLC, and peak. Correlation coefficients (using a quadratic model) for velocity ranged from R=0.96 to R=0.98 with SEE ranging from 9.0 to 13.1 m·min^{-1}. Correlation coefficients for V̇O_{2} ranged from R=0.94 to R=0.96 with SEE ranging from 2.8 to 3.6 ml/kg·min. The validity of these regression equations was examined in 13 women who completed a 12-month running program (V̇O_{2} LT, V̇O_{2} at FBLC of 2.0, 2.5 and 4.0 mM, and V̇O_{2} peak increased by 34.7, 19.9, 16.9, 11.9, and 5.4%, respectively, p<0.05). The regression equations were valid predictors of V̇O_{2} and velocity, both before and after training, with correlations between actual and predicted values ranging from r=0.75 to r=0.92 (for velocity) and from r=0.64 to r=0.83 (for V̇O_{2}). The standard error of the difference scores (SE) were similar to the SEE's of the original equations. We conclude that a 3200-m time trial can be used to predict VO_{2} and velocity at LT, FBLC, and peak, as well as changes in these parameters as a result of training.

Original language | English (US) |
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Pages (from-to) | 373-378 |

Number of pages | 6 |

Journal | International Journal of Sports Medicine |

Volume | 11 |

Issue number | 5 |

DOIs | |

State | Published - Jan 1 1990 |

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### ASJC Scopus subject areas

- Orthopedics and Sports Medicine

### Cite this

*International Journal of Sports Medicine*,

*11*(5), 373-378. https://doi.org/10.1055/s-2007-1024821

**Prediction of lactate threshold (LT) and fixed blood lactate concentrations (FBLC) from 3200-m running performance in women.** / Weltman, A.; Seip, R.; Bogardus, A. J.; Snead, D.; Dowling, E.; Levine, S.; Weltman, J.; Rogol, A.

Research output: Contribution to journal › Article

*International Journal of Sports Medicine*, vol. 11, no. 5, pp. 373-378. https://doi.org/10.1055/s-2007-1024821

}

TY - JOUR

T1 - Prediction of lactate threshold (LT) and fixed blood lactate concentrations (FBLC) from 3200-m running performance in women

AU - Weltman, A.

AU - Seip, R.

AU - Bogardus, A. J.

AU - Snead, D.

AU - Dowling, E.

AU - Levine, S.

AU - Weltman, J.

AU - Rogol, A.

PY - 1990/1/1

Y1 - 1990/1/1

N2 - The present study evaluated the accuracy of predicting velocity and oxygen consumption (V̇O2) at the LT lactate threshold and FBLC fixed blood lactate concentrations from a 3200-m time trial in women. Forty-four women (x̄ age=31.1 yrs, x̄ ht=164.9 cm, x̄ wt=65.0 kg) completed a treadmill protocol for the determination of LT and FBLC and a 3200-m time trial. Velocity and V̇O2 values at LT, FBLC of 2.0, 2.5, and 4.0 mM, and peak were determined. Mean V̇O2 and velocity ranged from 27.8±10.8 ml/kg·min-1 at LT to 42.5 ml/kg·min-1 at peak and from 129.8±44.0 m·min-1 at LT to 187.0±52.4 m·min-1 at peak, respectively. Results indicated that a 3200-m time trial (x̄ time=20.6±6.6 min) was a good predictor of V̇O2 and velocity at LT, FBLC, and peak. Correlation coefficients (using a quadratic model) for velocity ranged from R=0.96 to R=0.98 with SEE ranging from 9.0 to 13.1 m·min-1. Correlation coefficients for V̇O2 ranged from R=0.94 to R=0.96 with SEE ranging from 2.8 to 3.6 ml/kg·min. The validity of these regression equations was examined in 13 women who completed a 12-month running program (V̇O2 LT, V̇O2 at FBLC of 2.0, 2.5 and 4.0 mM, and V̇O2 peak increased by 34.7, 19.9, 16.9, 11.9, and 5.4%, respectively, p<0.05). The regression equations were valid predictors of V̇O2 and velocity, both before and after training, with correlations between actual and predicted values ranging from r=0.75 to r=0.92 (for velocity) and from r=0.64 to r=0.83 (for V̇O2). The standard error of the difference scores (SE) were similar to the SEE's of the original equations. We conclude that a 3200-m time trial can be used to predict VO2 and velocity at LT, FBLC, and peak, as well as changes in these parameters as a result of training.

AB - The present study evaluated the accuracy of predicting velocity and oxygen consumption (V̇O2) at the LT lactate threshold and FBLC fixed blood lactate concentrations from a 3200-m time trial in women. Forty-four women (x̄ age=31.1 yrs, x̄ ht=164.9 cm, x̄ wt=65.0 kg) completed a treadmill protocol for the determination of LT and FBLC and a 3200-m time trial. Velocity and V̇O2 values at LT, FBLC of 2.0, 2.5, and 4.0 mM, and peak were determined. Mean V̇O2 and velocity ranged from 27.8±10.8 ml/kg·min-1 at LT to 42.5 ml/kg·min-1 at peak and from 129.8±44.0 m·min-1 at LT to 187.0±52.4 m·min-1 at peak, respectively. Results indicated that a 3200-m time trial (x̄ time=20.6±6.6 min) was a good predictor of V̇O2 and velocity at LT, FBLC, and peak. Correlation coefficients (using a quadratic model) for velocity ranged from R=0.96 to R=0.98 with SEE ranging from 9.0 to 13.1 m·min-1. Correlation coefficients for V̇O2 ranged from R=0.94 to R=0.96 with SEE ranging from 2.8 to 3.6 ml/kg·min. The validity of these regression equations was examined in 13 women who completed a 12-month running program (V̇O2 LT, V̇O2 at FBLC of 2.0, 2.5 and 4.0 mM, and V̇O2 peak increased by 34.7, 19.9, 16.9, 11.9, and 5.4%, respectively, p<0.05). The regression equations were valid predictors of V̇O2 and velocity, both before and after training, with correlations between actual and predicted values ranging from r=0.75 to r=0.92 (for velocity) and from r=0.64 to r=0.83 (for V̇O2). The standard error of the difference scores (SE) were similar to the SEE's of the original equations. We conclude that a 3200-m time trial can be used to predict VO2 and velocity at LT, FBLC, and peak, as well as changes in these parameters as a result of training.

UR - http://www.scopus.com/inward/record.url?scp=0025089340&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025089340&partnerID=8YFLogxK

U2 - 10.1055/s-2007-1024821

DO - 10.1055/s-2007-1024821

M3 - Article

VL - 11

SP - 373

EP - 378

JO - International Journal of Sports Medicine

JF - International Journal of Sports Medicine

SN - 0172-4622

IS - 5

ER -