Aerobic power assessment by using a 10 min heart rate control running on treadmill

作者：Wang S C; Lin H F^*; Wu C F; Lin B N; Wang Y S; Huang Y J

来源：Journal of Sports Medicine and Physical Fitness, 2010, 50(1): 32-36.

• Exercise test
• Physical fitness
• Heart rate

Aim. This study evaluated the reliability and validity of a proposed 10 min running speed variance test (RSV(HRC)) in assessing aerobic power at which the intensity was controlled at 80% of age-predicted maximal heart rate (HR).
Methods. Forty-four college students (21 men and 23 women, age: 21+/-3 years, height: 166.6+/-7.9 cm, weight: 61.7+/-9.3 kg) were recruited to undergo 2 RSV(HRC) test trials, and a maximal exercise test at least 24 hours apart. The test consisted of a 3-min warm-up at 1.67 km/h, followed by adjusting speed up to either at 2.5 m/s or 2.78 m/s immediately depending upon onset HR after the warm-up. HR was monitored every 30 seconds and running speed was adjusted accordingly to maintain HR (+/-5bpm) for 10 minutes. RSV(HRC) was determined by the slope of distance/time relationship from 3(rd) to 10(th) min.
Results. Pair t-test showed that there was no significant difference between 1(st) (2.38+/-0.58 m/s) and 2(nd) trial (2.40+/-0.63 m/s). Intraclass correlation coefficient (ICC) score showed that RSV(HRC) was highly reliable (ICC=0.98, 95% CI=0.97-0.99). Coefficient of variation, standard error of measurement (SEM), and %SEM were 4.8%, 0.12 m/s, 5.02% respectively. Additionally, a Pearson product-moment correlation coefficient demonstrated 2 trials were correlated with maximal oxygen uptake (46.6+/-8.1 mL/kg/min) at r=0.74, 0.71 (P<0.05).
Conclusion. In conclusion, 80 %HRmax RSV(HRC) is an easy and highly reliable submaximal exercise test that provides good validity to assess aerobic power in young and healthy population, which can be applied on treadmill setting.

• 出版日期2010-3