CRF was determined using a 20-m shuttle run test [28 (link)]. The test has a moderate-to-high criterion validity for estimating the maximum oxygen uptake (VO2max; r = 0.66–0.84), which is higher when other variables (e.g. sex, age or body mass) are taken into account (r = 0.78–0.95) [29 (link)]. Moreover, it has a test-retest reliability coefficient of 0.89 for children [28 (link)]. To minimise measurement bias, the test was additionally monitored with heart rate monitors (Polar Accurex Plus and Polar S610i). The criteria for exhaustion was a heart rate of ≥185 beats per min. CRF was expressed as VO2max relative to body weight in ml of oxygen per kg of body mass per minute by using the quadratic formula from the Pacer Linear Model 2 protocol [30 (link)].
Accurex plus
Manufactured by Polar Electro
Sourced in Finland
Accurex Plus is a laboratory equipment product that provides precise measurement and data collection capabilities. It is designed to accurately capture and record various physical and chemical parameters within a controlled environment.
Automatically generated - may contain errors
17 protocols using accurex plus
1
Cardiorespiratory Fitness Assessment Protocol
2
Cycle Ergometer Training Intervention
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Participants trained 5 times per week on consecutive days (Monday through Friday) for 6 weeks. Each training session consisted of 30 min cycle ergometer exercise at a heart rate corresponding to 65% of Pmax. Training intensity was monitored based on heart rate (Accurex Plus, Polar Electro Finland, Kempele, Finland) and increased as necessary to maintain a constant individual training intensity at approximately 90% of maximal heart rate. Cycling power was increased as necessary to maintain a constant training heart rate corresponding to 83 ± 1% of the individual’s maximal heart rate in the first training week, and to 90 ± 2% in the sixth training week.
3
Assessing Peak Oxygen Uptake and Maximal Cycling Power
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
Peak oxygen uptake and the maximal cycling power (Pmax) was assessed with ergospirometry. Two weeks before the first bout of exercise, subjects were familiarized with the test equipment. Exercise tests were conducted using a cycle ergometer (Ergoline 800S; Ergoline, Bitz, Germany). Expired air was analyzed with breath-by-breath measurements (Oxycon alpha; Jäger, Würzburg, Germany) and heart rate was monitored using an Accurex Plus chest belt (Polar Electro Finland, Kempele, Finland). Starting at 40 W, and a cadence of 70–80 rpm, power was increased by 30 W every 2 min until the participants could no longer maintain a cadence of over 60 rpm. At the end of each 2-min increment in power, a capillary sample was taken from the ear lobe and analyzed for blood lactate essentially as described [21 (link)]. Peak oxygen uptake was determined as the highest (mean) value of oxygen uptake after the increase in oxygen uptake levelled off and blood lactate reached at least 10 mM.
4
Maximal Oxygen Uptake Testing Under Normoxia and Hypoxia
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The -test was conducted twice under normoxia (Fio 2: 20.9%) and hypoxia (Fio 2: 14.5%). The test began at 50 W, and the load was increased progressively by 30-W increments every 2 min until exhaustion [80 revolutions/min (rpm)]. During the test, expired gases were collected and analyzed using an automatic gas analyzer (AE300S; Minato Medical Science Co., Ltd., Tokyo, Japan). The respiratory data were averaged every 30 s. Heart rate (HR) was measured continuously during the test using a wireless HR monitor (Accurex Plus; Polar Electro Oy, Kempele, Finland). The order of the two repeated bouts of -tests under normoxia and hypoxia was randomized. These tests were performed a minimum of at least 3 days before the trials commenced.
5
Supervised Prenatal Exercise Program
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The physical activity program was carried out between weeks 10 and 14 to the end of the third trimester. Women in the IG exercised for 50-to 60-min sessions, three sessions per week, two on land (gym hall) and one as an aquatic-water-based activity (small and large pool tanks). The exercise intensity was set through Borg's scale-between 6 (without effort) and 20 (maximum effort) ( 4 ). For the exercise sessions, level 12-14 was maintainedi.e., somewhat strong ( 2 ). In addition, maternal HR was assessed by using an HR monitor (Accurex Plus, Polar Electro OY, Finland) and exercise intensity was modulated in order not to surpass 60% of the calculated HR reserve [(220 -age) -(resting HR) × 60%] + resting HR ( 17 ). To maximize patient safety and adherence to the training program and its efficacy, all of the sessions were supervised by a qualified fitness specialist (working with groups of 10-12 women) with the assistance of an obstetrician.
6
Cardiovascular Response to Resistance Training
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The study was approved by the Office of Research Ethics & Compliance and informed consent was obtained from all the participants. This cross-sectional study was conducted to determine if overweight adults (age 19–59 years old; BMI ≥ 28 kg/m2) and older adults (age ≥ 60 years old BMI < 25 kg/m2) are able to increase their HR to moderate intensity while doing RT in a similar manner as adults who are not overweight (age 19–60 years old; BMI< 25 kg/m2). Aerobic intensity was calculated in accordance to previously determined HR reserve (HRR) values (33 ) as measured via a chest strap and watches recoding HR every second (Polar Accurex Plus Woodbury, NY).
Sixty active members from a community centre were recruited to join one of three groups based on BMI and age. To be eligible, participants had to self-report participating in RT for a minimum of two times per week during the previous six months in order to ensure familiarity with the selected exercises. If a participant was unfamiliar with a specific exercise, adequate time was spent to learn proper form and understanding before initiation. Participants were excluded if they were taking any medication that could have an impact on blood pressure or HR.
Sixty active members from a community centre were recruited to join one of three groups based on BMI and age. To be eligible, participants had to self-report participating in RT for a minimum of two times per week during the previous six months in order to ensure familiarity with the selected exercises. If a participant was unfamiliar with a specific exercise, adequate time was spent to learn proper form and understanding before initiation. Participants were excluded if they were taking any medication that could have an impact on blood pressure or HR.
7
Incremental Running Test for VO2max
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
An incremental running test was conducted at multiple stages to evaluate
V ˙ 2010 ). During the test, expired gases were collected and analyzed using an automatic gas analyzer (AE300S; Minato Medical Science). The data were averaged every 30 s. Heart rate was measured continuously during the test using a wireless heart rate monitor (Accurex Plus; Polar Electro Oy).
8
Resting Heart Rate Measurement
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The subjects were allowed to rest for a period of 30 min. Following the rest period, the heart rate monitor (Polar Accurex Plus, Polar electro Oy, S810i, Finland) was worn over and recorded for 5 min. The minimum value obtained during this period was considered as the resting value.
9
VO2max Testing in Normoxia and Hypoxia
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
The VO2max test was conducted twice under normoxic and hypoxic conditions. The test began at 100 W, and the load was increased progressively by 30-W increments every 2 min until exhaustion (80 r/min). During the test, expired gases were collected and analyzed using an automatic gas analyzer (AE300S, Minato Medical Science Co., Ltd., Tokyo, Japan). The respiratory data were averaged every 30 s. HR was measured continuously during the test using a wireless HR monitor (Accurex Plus; Polar Electro Oy, Kempele, Finland). The order of the two repeated bouts of VO2max tests under normoxic and hypoxic conditions was randomized. These tests were performed at least 3 days apart.
10
Repeated Sprint Speed Protocols
Check if the same lab product or an alternative is used in the 5 most similar protocols
+ Expand
After the familiarization session, players performed in a random order (at the three last sessions) 3 RSS protocols consisting of two sets of 5×20 m sprints, with 15 s of active recovery between repetitions and with either 1-min (RSS1), 2-min (RSS2), or 4-min (RSS4) recovery periods between sets.
For the 5 sprints performed in each set, best sprint time (BST), total sprint time (TST: sum of the 5 sprints), and fatigue index (FI) were determined. HR was continuously recorded during the three sessions of RSS using a heart rate monitor (Polar Accurex Plus, Kempele, Finland), and both mean HR and peak HR reached during the test were used in the statistical analyses. Finger-tip capillary lactate concentrations ([Lac]) were measured before and three minutes after each test using a hand-held Lactate Pro device (Arkray, KDK, Japan). Δ [Lac] was calculated as the difference between [Lac] at rest and the value recorded after the protocols. Only for RSS4 was Δ [Lac] calculated for each set. After each test, the rating of perceived exertion (0-10 scale) was registered [23 (link)].
For the 5 sprints performed in each set, best sprint time (BST), total sprint time (TST: sum of the 5 sprints), and fatigue index (FI) were determined. HR was continuously recorded during the three sessions of RSS using a heart rate monitor (Polar Accurex Plus, Kempele, Finland), and both mean HR and peak HR reached during the test were used in the statistical analyses. Finger-tip capillary lactate concentrations ([Lac]) were measured before and three minutes after each test using a hand-held Lactate Pro device (Arkray, KDK, Japan). Δ [Lac] was calculated as the difference between [Lac] at rest and the value recorded after the protocols. Only for RSS4 was Δ [Lac] calculated for each set. After each test, the rating of perceived exertion (0-10 scale) was registered [23 (link)].
About PubCompare
Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.
We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.
However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.
Ready to get started?
Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required
Revolutionizing how scientists
search and build protocols!