Variations in Heart Rate at Blood Lactate Threshold Due to Exercise Mode in Elite Cross-Country Skiers

摘要: Larson, A.J. Variations in heart rate at blood lactate threshold due to exercise mode elite cross-country skiers. J. Strength Cond. Res. 20(4):855-860. 2006.-This study attempted quantify the difference and stage which (Tbla) occurs using 3 different modes of exercise: running, double poling (DP) on roller skis, skating (SK) skis. Nine collegiate ski racers (4 men, 5 women) served as test subjects. Testing was conducted a motorized FitNex treadmill, specially designed for skiing. Heart monitored via telemetry with values averaged over last 30 seconds each stage. A 40-?l sample obtained fingertip end 4-minute stage, 25 ?l analyzed whole concentration. The Tbla determined by first that elicited concentration 4.0 mmol·L?1. same protocol used all modes. Mean rate, beats per minute (b·min?1), not significantly (P 0.05) SK (mean 187 ± 14 b·min?1 SD) vs. running 12 SD); however, lower DP 161 17 SK. mean induced value exceeded (5.22 1.20 mmol·L?1 (1.89 0.78 SD), (3.67 0.71 DP. It concluded during compared or running. Therefore, it stands reason may vary based exercise, when estimate concentration, coaches athletes should be aware elicit given depending used.