نتایج جستجو برای: 75 hrmax then
تعداد نتایج: 919539 فیلتر نتایج به سال:
This study assessed age-related changes in power and heart rate in 114 competitive male cyclists age 15-73 years. Participants completed a maximal Kingcycle ergometer test with maximal ramped minute power (RMPmax, W) recorded as the highest average power during any 60 s and maximal heart rate (HRmax, beats/min) as the highest value during the test. From age 15 to 29 (n = 38) RMPmax increased by...
BACKGROUND It has not been assessed before whether mathematical models described in the literature for prescriptions of exercise can be used for fibromyalgia syndrome patients. The objective of this paper was to determine how age-predicted heart rate formulas can be used with fibromyalgia syndrome populations as well as to find out which mathematical models are more accurate to control exercise...
We measured physiological responses of elderly recreational skiers of different fitness and skiing abilities. Six subjects (mean age: 61.2 ± 4.6 yrs; Wt: 76.8 ± 15.6 kg; Ht: 1.69 ± 0.10 m; BMI: 26.9 ± 5.0) were tested in a laboratory and during 30 and 75 min of recreational downhill skiing. Oxygen uptake (VO2), heart rate (HR), blood lactate (LA) concentration, and diastolic (DBP) and systolic ...
Purpose. Although maximal heart rate (HRmax) is used widely to assess exercise intensity in training, there are limited data with regards to the validity of age-based prediction equations of HRmax in volleyball players. Therefore, the aim of the present study was to compare the measured-HRmax of two prediction equations (Fox-HRmax = 220 − age and Tanaka-HRmax = 208 − 0.7 × age) in young female ...
Age-based prediction equations of maximal heart rate (HRmax), such as the popular formulas Fox's 220-age, or Tanaka's 208-0.7 × age, have been widely used in various populations. Surprisingly, so far these equations have not been validated in marathon runners, despite the importance of the role of HRmax for training purposes in endurance running. The aim of the present study was to examine the ...
Maximal heart rate (HRmax ) declines substantially with age, but the magnitude and possible modifying effect of gender, body composition, and physical activity are not fully established. The present study examined the relationship between HRmax and age in 3320 healthy men and women within a wide age range using data from the HUNT Fitness Study (2007-2008). Subjects were included if a maximal ef...
Previous investigators using clinical, hemodynamic, or exercise parameters to predict maximal exercise heart rate (HRmax) have demonstrated age to be the major determinant. Regression coefficients have ranged from -0.3 to -0.6, leaving approximately two thirds of the variance in HRmax unexplained. Because cardiac size and function are directly related to stroke volume and should influence HRmax...
BACKGROUND There are no studies in the literature to validate equations that predict maximum heart rate (HRmax) in children and adolescents. OBJECTIVE To analyze the validity of the HRmax predictive equations "220 - age" and "208 - (0.7 x age)" in boys aged 10 and 16. METHODS A progressive maximal exertion test was carried out in 69 apparently healthy boys aged 10 to 16. The initial test ve...
OBJECTIVES Exergames can replace sedentary time spent on computer gaming with physical activity. Previous research has found exergaming to elicit light-to-moderate exercise intensity. Our primary aim was to examine the exercise intensity of a newly developed biking exergame. METHODS Eight males (23.9±0.6 years) played the exergame (PLAY) and walked (WALK) on three separate occasions, with the...
تاثیر هشت هفته تمرین استقامتی بر آنزیم های کبدی معتادین زن در حال ترک با متادون هدف این پژوهش بررسی تاثیر هشت هفته تمرین استقامتی بر آنزیم های آسپارتات آمینو ترانسفراز، آلانین آمینو ترانسفراز و آلکالین فسفاتاز کبد معتادین زن در حال ترک با متادون بود. بدین منظور10 زندانی داوطلب از بین زندانیان در حال ترک با متادون ندامتگاه فردیس کرج که سه جلسه درهفته تمرین داشتند، با سن66/10 ± 8/33 سال، قد60/...
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