Optimal homeostatic stress to maximize the homogeneity of adaptations to interval interventions in soccer players

Frontiers in Physiology, Journal Year: 2024, Volume and Issue: 15

Published: April 9, 2024

This study examined the uniformity of adaptations in cardiorespiratory fitness and bio-motor abilities by analyzing individual responses to measures representing mentioned qualities. Twenty-four male well-trained soccer players (Age = 26 ± 4 years; stature 181 3.8; Weight 84 6.1) were randomized two groups performing short sprint interval training [sSIT (3 sets 10 × s all-out sprints with 20 recovery between efforts 3 min rest intervals sets)] or a time-matched small-sided game [SSG v 15 m area relief in-between)]. Before after 6-week period, aerobic indices, cardiac hemodynamics, anaerobic power assessed through graded exercise test utilizing gas collection system, noninvasive impedance cardiography, lower-body Wingate test, respectively. Also, sport-specific determined measuring linear speed, change direction, jumping ability. Comparing inter-individual variability adaptive changes residuals indicated that sSIT induces more uniform first second ventilatory threshold (VT 1 & VT 2 ), stroke volume, peak output across team members than SSG. SSG also yielded lower proportions responders V˙O2⁡max , peak, average compared sSIT. Additionally, coefficient variation mean group response Short homogenized games members.

Language: Английский

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A Comparative Analysis of High-Intensity Technique-Specific Intervals and Short Sprint Interval Training in Taekwondo Athletes: Effects on Cardiorespiratory Fitness and Anaerobic Power

Journal of Sports Science and Medicine, Journal Year: 2024, Volume and Issue: unknown, P. 672 - 683

Published: Aug. 20, 2024

Technique-specific high-intensity interval training (HIITTS) has been proven to be an effective method enhance the sport-specific bio-motor abilities of taekwondo athletes. However, studies regarding its effects on comprehensive measures cardiorespiratory fitness are limited. Furthermore, there is a lack clarity extent individual adaptations this compared HIIT in form repeated sprints (HIITRS). This study HIITRS and HIITTS anaerobic power trained athletes (age = 19.8 ± 1.3 years; body mass 75.4 9.1 kg; height 1.73 0.0 .m). All participants completed three sessions per week 60-minute regular training. Following training, 3 sets 10 × 4 s all-out or same kicks with both legs over 6-week period. In groups, rest intervals were set at 15 seconds between efforts one minute sets. Before after period, underwent series lab- field-based tests evaluate abilities. Both interventions resulted significant improvements maximum oxygen uptake (V̇O2max), O2 pulse (V̇O2/HR), first ventilatory threshold (VT1), second (VT2), cardiac output (Q̇max), stroke volume (SV), peak (PPO), average (APO), squat jump (SJ), countermovement (CMJ). linear speed (20-m time) taekwondo-specific agility test (TSAT) only responded HIITRS. greater changes V̇O2max, V̇O2/HR, VT2, Q̇max, higher percentage responders measured parameters than HIITTS. addition, elicited lower inter-individual variability (CV) percent from pre- post-training all variables. These results suggest that incorporating into significantly more homogenized among

Language: Английский

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Optimal Prescription for Superior Outcomes: A Comparative Analysis of Inter-Individual Variability in Adaptations to Small-Sided Games and Short Sprint Interval Training in Young Basketball Players

Journal of Sports Science and Medicine, Journal Year: 2024, Volume and Issue: unknown, P. 305 - 316

Published: March 25, 2024

This study compared the inter-individual variability in adaptive responses to six weeks of small-sided games (SSG) and short sprint interval training (sSIT) young basketball players. Thirty well-trained athletes (age: 16.4 ± 0.6 years; stature: 190 8.4 cm; weight: 84.1 8.2 kg) voluntarily participated were randomly assigned SSG (3 sets 5 min 3v3 on full length (28 m) half-width (7.5 court, with 2 minutes passive recovery in-between), sSIT 12 × s sprinting 20 between efforts rest sets), or CON (routine basketball-specific technical tactical drills) groups, each ten. Before after period, participants underwent a series laboratory- field-based measurements evaluate their maximum oxygen uptake (V̇O2max), first second ventilatory threshold (VT1 VT2), pulse, peak average power output (PPO APO), linear speed, change direction (COD), countermovement jump (CMJ), vertical (VJ). Both sufficiently stimulated mechanisms involved enhancement mentioned variables (p < 0.05). However, resulted lower residuals percent changes V̇O2max = 0.02), O2pulse 0.005), VT1 0.001), PPO 0.03), speed 0.01) across SSG. Moreover, more responders than 0.02, φ 0.500), 0.003, 0.655), VT2 0.05, 0.436), 0.420). Our results indicate that creates consistent level mechanical physiological stimulus SSG, potentially leading similar adaptations team members.

Language: Английский

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Individualizing Basketball-Specific Interval Training Using Anaerobic Speed Reserve: Effects on Physiological and Hormonal Adaptations

International Journal of Sports Physiology and Performance, Journal Year: 2024, Volume and Issue: 19(4), P. 365 - 374

Published: Jan. 18, 2024

Purpose : We compared the adaptive responses to supramaximal high-intensity interval training (HIIT) individualized according anaerobic speed reserve (ASR), 30-15 Intermittent Fitness Test ( V IFT ), and velocity associated with maximum oxygen uptake (MAS) determine which approach facilitates more identical adaptations across athletes different profiles. Methods Thirty national-level basketball players (age = 28.4 [5] y; body mass 88.9 [6.3] kg; height 190 [4.8] cm) were randomly assigned 3 groups performing 2 sets of 4, 6, 8, 10-minute runs (from first sixth week, respectively), consisting 15-second running at Δ%20ASR (MAS + 0.2 × ASR), 95% , 120%MAS, 15 seconds recovery between efforts a 3-minute relief sets. Results All interventions significantly P < .05) enhanced pulse second ventilatory threshold (VT 1 VT cardiac output stroke volume, peak average power output, testosterone levels, testosterone-to-cortisol ratio following period. Different values interindividual variability (coefficient variation) for percentage changes measured variables observed in response HIIT ASR v MAS (8.7%, 18.8%, 34.6%, (9.5%, 15.0%, 28.6%), (9.6%, 19.6%, 34.6%), (21.8%, 32.4%, 56.7%), (8.2%, 16.9%, 28.8%), volume (7.9%, 15.2%, 23.5%), (20%, 22%, 37.3%), (21.1%, 21.3%, 32.5%), (52.9%, 61.6%, 59.9%), (55.1%, 59.5%, 57.8%). Conclusions Supramaximal performed resulted uniform physiological than prescribed using or MAS. Although hormonal do not follow this approach, all approaches induced an anabolic effect.

Language: Английский

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Comparative analysis of consistency of adaptations to interval interventions individualized using sport-specific techniques in well-trained soccer players

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 9, 2025

This study aimed to investigate the uniformity of adaptive changes in cardiorespiratory fitness and anaerobic power high-intensity interval interventions (HIIT) designed using techniques specified for soccer players. Thirty well-trained athletes (age = 25 ± 3.1 years; body mass 82.4 3.4 kg; height 183 2.1 cm) were randomly assigned two experimental groups engaging intervention individualized 30–15 Intermittent Fitness Test [HIITvIFT (two sets 5–8 min intervals, comprising 15 s running at 95% VIFT followed by passive recovery)], small-sided game with matched timing (SSG [4 2.5–4 3 v efforts]), as well an active control group. Before after a 6-week consisting three sessions per week, participants underwent lab-based test breath-by-breath gas analyzer non-invasive impedance cardiography evaluate aerobic cardiac function measures. Also, was measured lower-body Wingate test. Both resulted significant enhancement all measures over training period. Analyzing inter-individual variability through determining residuals individual indicated HIITvIFT results ventilatory threshold (VT [first (VT1) second (VT2)]), peak average output than SSG (p 0.02, 0.04, 0.01, respectively). In addition, change maximum oxygen uptake, maximal ventilation, following notably greater 0.002, 0.006, and, 0.019, There no difference between hemodynamics (cardiac stroke volume). Overall, facilitating more homogenous stress, identical physiological demands uniform adaptations SSG.

Language: Английский

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Supramaximal interval training using anaerobic speed reserve or sprint interval training in rowers

Frontiers in Physiology, Journal Year: 2025, Volume and Issue: 16

Published: March 27, 2025

Objective This study aimed to compare the consistency of physiological adaptations and inter-individual variability in response three distinct high-intensity interval training (HIIT) protocols—anaerobic power reserve (APR), maximal aerobic (MAP), sprint (SIT)—among elite male rowers. By exploring impact individualized intensity prescriptions, we sought identify most effective protocol for enhancing consistency, as well improving both anaerobic performance while minimizing individual responses. Methods Thirty well-trained rowers (mean age: 24.9 ± 3.1 years; height: 185 4.4 cm; body mass: 86 7.9 kg; fat: 12.5% 2.4%) participated study. All participants were members a national rowing team with an average 6 years competitive experience regular participation international championships. The intervention involved weeks HIIT, performed times per week, pre- post-tests assessing VO 2 max, cardiovascular efficiency (Qmax), (MSP, CP), 2,000-m performance. Results interventions resulted significant improvements Qmax, MSP, time trial (p &lt; 0.05). SIT group exhibited largest relative improvements, max increasing by 6.3% (from 51.9 3.2 55.2 3.3 mL·kg -1 ·min , Cohen’s d = 1.05, 95% CI [0.57, 1.53]), Qmax 6.4% (Cohen’s 1.15, [0.66, 1.64]), 3.7% reduction 0.86, [0.39, 1.33]). Notably, demonstrated lowest across all measured outcomes, evidenced reduced coefficients variation narrower confidence intervals. Conclusion protocol, emphasizing exertion, led consistent greatest key metrics, including These results suggest that may be optimal approach maximizing Future research should explore long-term applicability potential integration other modalities further enhance

Language: Английский

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The Role of High-Intensity Interval Training (HIIT) in Neuromuscular Adaptations: Implications for Strength and Power Development—A Review

Life, Journal Year: 2025, Volume and Issue: 15(4), P. 657 - 657

Published: April 16, 2025

High-intensity Interval Training (HIIT) is increasingly recognized for enhancing neuromuscular function, strength, power, and overall athletic performance. This review systematically examined peer-reviewed studies published between 2000 2025, focusing on HIIT’s impact motor unit recruitment, muscle fiber composition, efficiency, maximal rate of force development (RFD), hypertrophy, power output. Findings indicate that HIIT significantly improves activation by increasing recruitment synchronization, particularly in fast-twitch fibers essential explosive movements. also promotes shifts toward Type II hybrid IIa fibers, strength endurance. However, despite its effectiveness boosting RFD less efficient than traditional resistance training maximizing absolute hypertrophy due to insufficient progressive overload. Integrating resistance-based plyometric-based protocols emerged as an effective strategy enhance concurrently. Effective periodization recovery strategies, including active targeted nutrition, help mitigate fatigue optimize adaptations. Notable research gaps include the long-term impacts function efficacy individualized based specific athlete characteristics. Future should focus refining different sports, exploring synergy with training, assessing adaptations sustain gains. presents a valuable, time-efficient complement conventional methods improving efficiency.

Language: Английский

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Uniform Homeostatic Stress Through Individualized Interval Training Facilitates Homogeneous Adaptations Across Rowers With Different Profiles

International Journal of Sports Physiology and Performance, Journal Year: 2024, Volume and Issue: 19(3), P. 232 - 241

Published: Jan. 2, 2024

This study compared the effects of individualizing supramaximal interval rowing interventions using anaerobic power reserve (APR [high-intensity training (HIIT) prescribed according to individual APR (HIITAPR)]) and associated with maximal oxygen uptake (WV˙O2max [HIIT based on WV˙O2max (HIITW)]) homogeneity physiological performance adaptations.

Language: Английский

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Impact of sprint interval training on post-fatigue mitochondrial rate in professional boxers

European Journal of Applied Physiology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 3, 2024

Language: Английский

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The acute effect of respiratory muscle training on cortisol, testosterone, and testosterone-to-cortisol ratio in well-trained triathletes - exploratory study

Respiratory Physiology & Neurobiology, Journal Year: 2024, Volume and Issue: unknown, P. 104353 - 104353

Published: Sept. 1, 2024

Language: Английский

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