scholarly journals Palatable Flavoured Fluids without Carbohydrates and Electrolytes Do Not Enhance Voluntary Fluid Consumption in Male Collegiate Basketball Players in the Heat

Nutrients ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 4197
Author(s):  
Bernadette Cherianne Taim ◽  
Haresh T. Suppiah ◽  
Jericho Wee ◽  
Marcus Lee ◽  
Jason K. W. Lee ◽  
...  
Keyword(s):  
Perceived Exertion ◽  
Rest Period ◽  
Urine Specific Gravity ◽  
Plain Water ◽  
Fluid Consumption ◽  
Ratings Of Perceived Exertion ◽  
Basketball Players ◽  
Performance Deficits ◽  
Collegiate Basketball ◽  
And Performance

Using palatable fluids to enhance drinking in athletes who display insufficient compensatory hydration behaviour may mitigate the risks of hypohydration and performance deficits. However, it is unclear whether flavour can independently enhance fluid consumption. This study examined the effects of a colourless, artificially sweetened flavoured water (FW), without carbohydrates and with negligible amounts of sodium, compared to plain water (W) on fluid consumption in male collegiate basketball players in a practical game setting. Eighteen male basketball players (age 23.1 ± 1.3 years) played a 3v3 basketball small-sided game. The players were randomly assigned to consume either FW or W. Pre-game urine-specific gravity, fluid consumption, body mass, and hedonic taste perceptions were assessed. Basketball performance was analysed through notational analysis. Ratings of perceived exertion and thirst were recorded at pre-, post-game, and at each rest period. Heart rate was recorded throughout the gameplay. Despite significantly higher hedonic ratings for FW than W (6.78 ± 0.83 vs. 5.56 ± 1.33, p = 0.033, d = 1.36), there were no significant differences in fluid consumption (1083 ± 32 mL vs. 1421 ± 403 mL, p = 0.068, d = 0.92). Our result highlighted that using palatable fluids as a strategy to increase fluid consumption during high-intensity gameplay in the heat may not be effective if used without carbohydrates and electrolytes. Practitioners could consider both fluid palatability and composition in establishing a hydration plan for athletes.

Effects of 4-week small-sided games vs. high-intensity interval training with changes of direction in female collegiate basketball players

2021 ◽  
pp. 174795412110327
Author(s):  
Jinshu Zeng ◽  
Jing Xu ◽  
Yuanhong Xu ◽  
Wu Zhou ◽  
Fei Xu
Keyword(s):  
Physical Performance ◽  
High Intensity ◽  
Perceived Exertion ◽  
Interval Training ◽  
High Intensity Interval Training ◽  
Basketball Players ◽  
Collegiate Basketball ◽  
High Intensity Interval ◽  
And Control ◽  
Movement Test

The aim of the study was to investigate the effects of 4-week small-sided games (SSG) and high-intensity interval training with changes of direction (HIT-COD) on physical performance and specific technical skills in female collegiate basketball players. Nineteen players were divided into SSG (n = 9) and HIT-COD (n = 10) groups, that performed either SSG or HIT-COD three times per week for 4 weeks during the pre-season. Players’ heart rate (HR) and perceived exertion responses (RPE) were assessed during the intervention. Before and after the intervention period, performances were assessed with 30-15 intermittent fitness test (30-15IFT), repeated sprint ability (RSA) test, modified agility T-test (MAT), countermovement jump (CMJ), 20-m sprint, shooting accuracy test, 1 min shooting test, passing test, defensive movement test and control dribble test. Both training interventions led to similar physiological and perceived exertion responses, showing no significant differences in HR ( P = .49, d = 0.2) and RPE ( P = .77, d = 0.1) between groups. Significant improvements were observed in 30-15IFT (SSG: 4.1%, d = 1.5; HIT-COD: 4.2%, d = 1.7), RSAmean (SSG: −2.2%, d = 1.0; HIT-COD: −1.9%, d = 1.0), RSAbest (SSG: −2.0%, d = 0.9; HIT-COD: −2.1%, d = 1.1), MAT (SSG: −7.2%, d = 1.7; HIT-COD: 5.7%, d = 1.5), defensive movement test (SSG: −5.1%, d = 2.1; HIT-COD: −5.8%, d = 1.8) and control dribble test (SSG: −3.4%, d = 1.0; HIT-COD: −2.6%, d = 1.0). The only significant group × time interaction was found ( P = .032, [Formula: see text] = 0.24), with SSG improving 1 min shooting (22.4%, d = 1.0) and HIT-COD performing slightly worse (−2.6%, d = 0.1) after a 4-week intervention. The current study suggests that using SSG is more effective than HIT-COD for female collegiate basketball players in pre-season, since SSG improves physical performance and basketball-specific movements as well as shooting abilities after a 4-week intervention.

Perceived exertion responses and performance of two mode of propulsion in the multistage field test with wheelchair basketball players

2016 ◽  
Vol 31 (6) ◽  
pp. e181-e188
Author(s):  
M. Astier ◽  
E. Watelain ◽  
B. Borel ◽  
T. Weissland ◽  
J.-M. Vallier ◽  
...  
Keyword(s):  
Field Test ◽  
Perceived Exertion ◽  
Wheelchair Basketball ◽  
Basketball Players ◽  
And Performance

scholarly journals Influence of very short rest period lengths on repeated one maximun repetition bench press performance

2018 ◽  
Vol 11 (3) ◽  
Author(s):  
E Scudese ◽  
G Senna ◽  
C Queiroz ◽  
EHM Dantas ◽  
R Simão ◽  
...  
Keyword(s):  
Body Mass ◽  
Perceived Exertion ◽  
Bench Press ◽  
Rest Period ◽  
Relative Strength ◽  
Successful Completion ◽  
Ratings Of Perceived Exertion ◽  
Rest Periods ◽  
Short Rest Period ◽  
Press Performance

Objective: The purpose of this investigation was to compare different rest period lengths between consecutive one maximum repetition bench press attempts on performance and ratings of perceived exertion. Method: Eighteen trained men (27.95 ± 4.25 years; 81.00 ± 9.21 kg; 174.62 ± 3.34 cm; bench press relative strength 1.33 ± 0.11 kg/kg of body mass) participated in three randomly ordered sessions that required two consecutive one maximum repetition bench press attempts with 20, 40, or 60-s rest between attempts. Results: The Cochran Q analysis showed no significant differences in the ability to successfully perform a second one maximum repetition attempt with 20, 40, or 60-s rest between attempts (p = 0.882). Specifically, no significant differences were found in the successful completion of the first and second attempts for the 20-s (p = 0.317), 40-s (p = 0.083), and 60-s (p = 0.157) trials, respectively. Briefly, for both 20 and 60-s rest conditions Δ% = 88.88% of subjects successfully performed the second attempt and, for the 40-s protocol, only Δ% = 83.33% completed. For the pre and post-set ratings of perceived exertion, the shorter rest period (20-s) promoted significantly higher values compared to the longer rest periods (pre-set ratings of perceived exertion, p = 0.04; post-set ratings of perceived exertion, p = 0.023). Conclusions: The results of this study can be applied to recreationally trained individuals with the intent of generating a time-efficient process for conducting a valid and reliable one maximum repetition bench press assessment.

scholarly journals The Effect of Simulation-based Training on Athletic Performances among Female Basketball Players

2021 ◽  
Vol 14 (1) ◽  
pp. 51-57
Author(s):  
Zahra Javanmardi ◽  
Maryam K. Jahromi ◽  
Mohammad Hemmatinafar ◽  
Beat Knechtle ◽  
Pantelis T. Nikolaidis
Keyword(s):  
Perceived Exertion ◽  
Simulation Training ◽  
Vertical Jump ◽  
Anaerobic Power ◽  
Control Group ◽  
Simulation Test ◽  
Basketball Players ◽  
Simulation Based ◽  
Before And After ◽  
And Performance

Background: The effectiveness of simulation-based training has been examined in various sports. However, considering the effect of gender and sport on training, it would be interesting to evaluate simulation-based training in female basketball. Objective: The purpose of the study was to examine the effect of simulation-based training on physical fitness and performance indices in female basketball players. Methods: Sixteen female semi-professional basketball players were randomly assigned to experimental (n=8; age, 25±2 years; weight, 62±9 kg; height, 167±8 cm) or control (n=8; age, 24±1 years; weight, 57±9 kg; height, 170±8 cm) groups. The experimental group participated in a six week basketball simulation training program including running with different speeds (jogging to sprinting), agility, jumping, and shuffling. Both groups performed the Cooper 12 min run, line drill, an adjusted T-test, 20 ms print, the Sargent vertical jump and basketball exercise simulation test before and after six weeks of the study period. Control and experimental groups performed typical basketball training, three times weekly. The overall training volume was similar for both groups. Results: The perceived exertion was higher in the simulation-based training than control (p<0.05) group. The findings of this study indicated a significant increase in VO2 max (p=0.001), anaerobic power (p=0.009), explosive leg strength (p=0.036), and total distance covered in basketball exercise simulation test (p=0.001) and decrease of the meantime of one round of basketball exercise simulation test (p=0.001) in the simulation training compared to the control group. Conclusion: Generally incorporation of the simulation-based training in conditioning programs is recommended for improving aerobic, anaerobic and leg explosive strength of basketball players.

Environmental and Psychophysical Heat Stress in Adolescent Tennis Athletes

2021 ◽  
pp. 1-6
Author(s):  
Maria Misailidi ◽  
Konstantinos Mantzios ◽  
Christos Papakonstantinou ◽  
Leonidas G. Ioannou ◽  
Andreas D. Flouris
Keyword(s):  
Perceived Exertion ◽  
Thermal Sensation ◽  
Meteorological Data ◽  
Urine Specific Gravity ◽  
Match Play ◽  
Warm Up ◽  
Junior Tennis ◽  
And Performance ◽  
C 30 ◽  
Head Neck

Purpose: We investigated the environmental conditions in which all outdoor International Tennis Federation (ITF) junior tournaments (athlete ages: <18 y) were held during 2010–2019. Thereafter, we performed a crossover trial (ClinicalTrials.gov: NCT04197375) assessing the efficacy of head–neck precooling for mitigating the heat-induced psychophysical and performance impacts on junior athletes during tennis match play. Methods: ITF junior tournament information was collected. We identified meteorological data from nearby (13.6 [20.3] km) weather stations for 3056 (76%) tournaments. Results: Overall, 30.1% of tournaments were held in hot (25°C–30°C wet-bulb globe temperature [WBGT]; 25.9%), very hot (30°C–35°C WBGT; 4.1%), or extremely hot (>35°C WBGT; 0.1%) conditions. Thereafter, 8 acclimatized male junior tennis athletes (age = 16.0 [0.9] y; height = 1.82 [0.04] m; weight = 71.3 [11.1] kg) were evaluated during 2 matches: one with head–neck precooling (27.7°C [2.2°C] WBGT) and one without (27.9°C [1.8°C] WBGT). Head–neck precooling reduced athletes’ core temperature from 36.9°C (0.2°C) to 36.4°C (0.2°C) (P = .001; d = 2.4), an effect reduced by warm-up. Head–neck precooling reduced skin temperature (by 0.3°C [1.3°C]) for the majority of the match and led to improved (P < .05) perceived exertion (by 13%), thermal comfort (by 14%), and thermal sensation (by 15%). Muscle temperature, heart rate, body weight, and urine specific gravity remained unaffected (P ≥ .05; d < 0.2). Small or moderate improvements were observed in most performance parameters assessed (d = 0.20–0.79). Conclusions: Thirty percent of the last decade’s ITF junior tournaments were held in hot, very hot, or extremely hot conditions (25°C–36°C WBGT). In such conditions, head–neck precooling may somewhat lessen the physiological and perceptual heat strain and lead to small to moderate improvements in the match-play performance of adolescent athletes.

The perceptual, heart rate and technical-tactical characteristics of 3 × 3 basketball

2020 ◽  
Vol 15 (5-6) ◽  
pp. 772-782
Author(s):  
Riley B McGown ◽  
Nick B Ball ◽  
Jan S Legg ◽  
Jocelyn K Mara
Keyword(s):  
Heart Rate ◽  
Mixed Models ◽  
Perceived Exertion ◽  
Ratings Of Perceived Exertion ◽  
Peak Heart Rate ◽  
Basketball Players ◽  
Preparation Programs ◽  
Dependent Variables ◽  
Physical Preparation ◽  
Pool Game

The aim of this study was to investigate the perceptual, heart rate and technical-tactical characteristics of elite male and female 3 × 3 basketball games. Eleven male and twenty-two female elite basketball players were monitored using heart rate telemetry, Ratings of Perceived Exertion (RPE) and video analysis across three 3 × 3 basketball tournaments. Linear mixed models were performed to determine the influence of round (pool game, quarter-final, semi-final, final, classification game) and sex on all dependent variables (alpha = 0.05). There was no difference between sexes for heart rate variables (p = 0.53 - 0.85). The greatest percentage (56.9 ± 20.1%) of game time was spent in heart rate zone 5 (90-100% peak heart rate). Overall RPE was higher in semi-finals (7.2 ± 1.5, p ≤ 0.001, ES: 1.27) and finals (7.7 ± 1.6 p ≤ 0.001, ES: 1.67) compared to pool games (5.1 ± 1.5). An analysis of the technical-tactical actions revealed that there were less steals in semi-finals (p = 0.01, ES = 0.56) and finals (p = 0.01, ES = 0.71) compared to pool games, with no sex-related differences present (p = 0.06 - 0.97). Players generally spent one minute on the bench for every three minutes on the court, creating a 3:1 work to rest ratio. Physical preparation programs for elite 3 × 3 basketball athletes should include exposure to high-intensity activity in which heart rates ≥80% of peak heart rate are reached for periods of time similar to that experienced during gameplay. A 3:1 work-to-rest ratio may be beneficial during conditioning training for this population.

scholarly journals Acute caffeine supplementation promotes small to moderate improvements in performance tests indicative of in-game success in professional female basketball players

2019 ◽  
Vol 44 (8) ◽  
pp. 849-856 ◽  
Author(s):  
Emilija Stojanović ◽  
Nenad Stojiljković ◽  
Aaron T. Scanlan ◽  
Vincent J. Dalbo ◽  
Ratko Stanković ◽  
...  
Keyword(s):  
Body Mass ◽  
Perceived Exertion ◽  
Ratings Of Perceived Exertion ◽  
Basketball Players ◽  
Double Blind ◽  
Arm Swing ◽  
Squat Jump ◽  
Professional Basketball ◽  
Perceived Performance ◽  
Testing Data

The aim of this study was to determine the effect of acute caffeine supplementation on anaerobic performance in professional female basketball players. A double-blind, placebo-controlled, experimental design was used in a randomized counterbalanced manner. In separate sessions, 10 professional basketball players ingested caffeine (3 mg/kg body mass) or a placebo (dextrose: 3 mg/kg body mass) 60 min before completing countermovement jumps (CMJ) with and without arm swing, a squat jump (SJ), the Lane Agility Drill, 20-m sprints (with 5-m and 10-m split times recorded) with and without dribbling a ball, and a suicide run. Participants provided ratings of perceived exertion (RPE) and ratings of perceived performance 30 min following testing. Data analyses included the use of effect size (ES) and significance. Caffeine supplementation produced small nonsignificant (p > 0.05) increases in CMJ without arm swing (ES = 0.30), CMJ with arm swing (ES = 0.29), SJ (ES = 0.33), and the lane agility drill (ES = –0.27). Caffeine supplementation produced small to moderate significant improvements in 10-m (ES = –0.63; p = 0.05) and 20-m (ES = –0.41; p = 0.04) sprint times without dribbling. Caffeine supplementation promoted a moderate significant reduction in RPE during the test battery (ES = –1.18; p = 0.04) and a small nonsignificant improvement in perceived performance (ES = 0.23; p = 0.53). Acute caffeine supplementation may produce small to moderate improvements in key performance attributes required for basketball while reducing RPE.

Hydrogen Rich Water Improved Ventilatory, Perceptual and Lactate Responses to Exercise

2019 ◽  
Vol 40 (14) ◽  
pp. 879-885 ◽  
Author(s):  
Michal Botek ◽  
Jakub Krejčí ◽  
Andrew J. McKune ◽  
Barbora Sládečková ◽  
Nenad Naumovski
Keyword(s):  
Blood Lactate ◽  
Perceived Exertion ◽  
Ratings Of Perceived Exertion ◽  
Exercise Protocol ◽  
Warm Up ◽  
Ventilatory Equivalent ◽  
Lower Blood ◽  
And Performance ◽  
Exercise Induced ◽  
Double Blinded

AbstractThe potential anti-fatigue and performance benefits of hydrogen rich water (HRW) have resulted in increased research interest over the past 5 years. The aim of this study was to assess physiological and perceptual responses to an incremental exercise protocol after administration of 600 ml HRW within 30 min before exercise. This randomized, double blinded placebo-controlled cross over study included twelve healthy males aged 27.1±4.9 years. The exercise protocol consisted of a 10 min warm-up at 1.0 W.kg−1, followed by 8 min at 2.0, 3.0, and 4.0 W.kg−1, respectively. Cardio-respiratory variables, lactate and ratings of perceived exertion (RPE) were assessed in the last minute of each step. A significantly lower blood lactate was found with HRW (4.0±1.6 and 8.9±2.2 mmol.l−1) compared to Placebo (5.1±1.9 and 10.6±3.0 mmol.l−1) at 3.0, and 4.0 W.kg−1, respectively. Ventilatory equivalent for oxygen and RPE exhibited significantly lower values with HRW (32.3±7.2, and 17.8±1.2 points, respectively) compared to Placebo (35.0±8.4, and 18.5±0.8 points, respectively) at 4 W.kg−1. To conclude, acute pre-exercise supplementation with HRW reduced blood lactate at higher exercise intensities, improved exercise-induced perception of effort, and ventilatory efficiency.

Sign in / Sign up

Export Citation Format

Share Document