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Shushan T, Lovell R, McLaren SJ, Buchheit M, Dello Iacono A, Arguedas-Soley A, Norris D. Assessing criterion and longitudinal validity of submaximal heart rate indices as measures of cardiorespiratory fitness: A preliminary study in football. J Sci Med Sport 2024:S1440-2440(24)00135-X. [PMID: 38702215 DOI: 10.1016/j.jsams.2024.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 05/06/2024]
Abstract
OBJECTIVES To evaluate the criterion and longitudinal validity of field- and laboratory-derived heart rate (HR) indices of resting and submaximal fitness tests (SMFTs) as measures of cardiorespiratory fitness. DESIGN Observational, repeated measures. METHODS Twenty-nine semi-professional footballers participated. Laboratory assessments took place at the start and end of a preseason training period, whereby resting, SMFT HR-derived indices, and criterion measures of cardiorespiratory fitness (running economy [RE], maximal oxygen uptake [V̇O2 max] and aerobic speed [MAS]) were collected. Throughout this training period, two field-based SMFT protocols, prescribed at different intensities, were administered weekly. Individual slopes were calculated from the analysis of within-athlete change scores. Associations between laboratory and field measures were assessed via Pearson's correlation coefficient (r) and linear regression models. RESULTS Relationships between SMFT HR-derived indices from laboratory and field were very-large for exercise HR (r = 0.74 to 0.87) and moderate to very-large for HR recovery (0.43 to 0.76). Moderate to very-large inverse relationships were observed between exercise HR and HR recovery with V̇O2 max and MAS (-0.41 to -0.78), whereas resting HR showed no substantial relationships. Changes in exercise HR showed large and very-large inverse correlations with preseason changes in V̇O2 max (-0.54 to -0.60) and MAS (-0.64 to -0.83). Relationships between changes in HR recovery and maximal cardiorespiratory criterion measures were moderate to large (-0.32 to -0.63). CONCLUSION SMFT exercise HR is a valid proxy measure of cardiorespiratory fitness irrespective of test setting, whereas the validity of HRR remains elusive and appears to vary between exercise intensities.
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Affiliation(s)
- Tzlil Shushan
- Faculty of Science, Medicine and Health, University of Wollongong, Australia; School of Health Sciences, Western Sydney University, Australia. https://twitter.com/shushan_tzlil
| | - Ric Lovell
- Faculty of Science, Medicine and Health, University of Wollongong, Australia. https://twitter.com/ric_lovell
| | - Shaun J McLaren
- Newcastle Falcons Rugby Club, UK; Department of Sport and Exercise Sciences, Manchester Metropolitan University Institute of Sport, UK. https://twitter.com/Shaun_McLaren1
| | - Martin Buchheit
- HIIT Science, Canada; French National Institute of Sport (INSEP), Laboratory of Sport, Expertise and Performance (EA 7370), France; Kitman Labs, Performance Research Intelligence Initiative, Ireland; Type 3.2 Performance, France. https://twitter.com/mart1buch
| | - Antonio Dello Iacono
- Institute for Clinical Exercise and Health Science, School of Health and Life Sciences, University of the West of Scotland, United Kingdom
| | - Adriano Arguedas-Soley
- School of Health Sciences, Western Sydney University, Australia; High Performance Department, Greater Western Sydney (GWS) Giants Football Club, Australia. https://twitter.com/Adriano_A_Soley
| | - Dean Norris
- School of Health Sciences, Western Sydney University, Australia. https://twitter.com/DNorrisSC
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Thurlow F, Huynh M, Townshend A, McLaren SJ, James LP, Taylor JM, Weston M, Weakley J. The Effects of Repeated-Sprint Training on Physical Fitness and Physiological Adaptation in Athletes: A Systematic Review and Meta-Analysis. Sports Med 2024; 54:953-974. [PMID: 38041768 DOI: 10.1007/s40279-023-01959-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Repeated-sprint training (RST) is a common training method for enhancing physical fitness in athletes. To advance RST prescription, it is important to understand the effects of programming variables on physical fitness and physiological adaptation. OBJECTIVES This study (1) quantifies the pooled effects of running RST on changes in 10 and 20 m sprint time, maximal oxygen consumption (VO2max), Yo-Yo Intermittent Recovery Test Level 1 (YYIR1) distance, repeated-sprint ability (RSA), countermovement jump (CMJ) height and change of direction (COD) ability in athletes, and (2) examines the moderating effects of program duration, training frequency, weekly volume, sprint modality, repetition distance, number of repetitions per set and number of sets per session on changes in these outcome measures. METHODS Pubmed, SPORTDiscus and Scopus databases were searched for original research articles up to 04 July 2023, investigating RST in healthy, able-bodied athletes, between 14 and 35 years of age, and a performance calibre of trained or above. RST interventions were limited to repeated, maximal running (land-based) sprints of ≤ 10 s duration, with ≤ 60 s recovery, performed for 2-12 weeks. A Downs and Black checklist was used to assess the methodological quality of the included studies. Eligible data were analysed using multi-level mixed-effects meta-analysis, with standardised mean changes determined for all outcomes. Standardised effects [Hedges G (G)] were evaluated based on coverage of their confidence (compatibility) intervals (CI) using a strength and conditioning specific reference value of G = 0.25 to declare an improvement (i.e. G > 0.25) or impairment (i.e. G < - 0.25) in outcome measures. Applying the same analysis, the effects of programming variables were then evaluated against a reference RST program, consisting of three sets of 6 × 30 m straight-line sprints performed twice per week for 6 weeks (1200 m weekly volume). RESULTS 40 publications were included in our investigation, with data from 48 RST groups (541 athletes) and 19 active control groups (213 athletes). Across all studies, the effects of RST were compatible with improvements in VO2max (G 0.56, 90% CI 0.32-0.80), YYIR1 distance (G 0.61, 90% CI 0.43-0.79), RSA decrement (G - 0.61, 90% CI - 0.85 to - 0.37), linear sprint times (10 m: G - 0.35, 90% CI - 0.48 to - 0.22; 20 m: G - 0.48, 90% CI - 0.69 to - 0.27), RSA average time (G - 0.34, 90% CI - 0.49 to - 0.18), CMJ height (G 0.26, 90% CI 0.13-0.39) and COD ability (G - 0.32, 90% CI - 0.52 to - 0.12). Compared with the reference RST program, the effects of manipulating training frequency (+ 1 session per week), program duration (+ 1 extra training week), RST volume (+ 200 m per week), number of reps (+ 2 per set), number of sets per session (+ 1 set) or rep distance (+ 10 m per rep) were either non-substantial or comparable with an impairment in at least one outcome measure per programming variable. CONCLUSIONS Running-based RST improves speed, intermittent running performance, VO2max, RSA, COD ability and CMJ height in trained athletes. Performing three sets of 6 × 30 m sprints, twice per week for 6 weeks is effective for enhancing physical fitness and physiological adaptation. Additionally, since our findings do not provide conclusive support for the manipulation of RST variables, further work is needed to better understand how programming factors can be manipulated to augment training-induced adaptations. STUDY REGISTRATION Open Science Framework registration https://doi.org/10.17605/OSF.IO/RVNDW .
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Affiliation(s)
- Fraser Thurlow
- School of Behavioural and Health Sciences, Australian Catholic University, 1100 Nudgee Road, Banyo, QLD, 4014, Australia.
- Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre, Australian Catholic University, Brisbane, QLD, Australia.
| | - Minh Huynh
- Sport, Performance, and Nutrition Research Group, School of Allied Health, Human Services, & Sport, La Trobe University, Melbourne, VIC, Australia
| | - Andrew Townshend
- School of Behavioural and Health Sciences, Australian Catholic University, 1100 Nudgee Road, Banyo, QLD, 4014, Australia
- Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre, Australian Catholic University, Brisbane, QLD, Australia
| | - Shaun J McLaren
- Newcastle Falcons Rugby Club, Newcastle Upon Tyne, UK
- Department of Sport and Exercise Sciences, Manchester Metropolitan University Institute of Sport, Manchester, UK
| | - Lachlan P James
- Sport, Performance, and Nutrition Research Group, School of Allied Health, Human Services, & Sport, La Trobe University, Melbourne, VIC, Australia
| | - Jonathon M Taylor
- School of Health and Life Sciences, Teesside University, Middlesbrough, UK
| | - Matthew Weston
- Physical Education and Health Sciences (ISPEHS), Moray House School of Education and Sport, The University of Edinburgh, Edinburgh, UK
| | - Jonathon Weakley
- School of Behavioural and Health Sciences, Australian Catholic University, 1100 Nudgee Road, Banyo, QLD, 4014, Australia
- Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre, Australian Catholic University, Brisbane, QLD, Australia
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds, UK
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3
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Clemente FM, Moran J, Ramirez-Campillo R, Beato M, Afonso J. Endurance Performance Adaptations between SSG and HIIT in Soccer Players: A Meta-analysis. Int J Sports Med 2024; 45:183-210. [PMID: 37678559 DOI: 10.1055/a-2171-3255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
The objective of this systematic review with meta-analysis was to compare the endurance performance chronic adaptations induced by running-based high-intensity interval training (HIIT), small-sided games (SSGs), and combined HIIT+SSGs in male and female youth and adult soccer players. The studies included in this review followed the PICOS criteria: (i) healthy soccer players; (ii) interventions based on SSGs; (iii) comparators exposed to only HIIT or combined SSGs+HIIT; (iv) endurance performance variables. Studies were searched for in the following databases: (i) PubMed; (ii) Scopus; (iii) SPORTDiscus; (iv) Web of Science. After conducting an initial database search that retrieved a total of 5,389 records, a thorough screening process resulted in the inclusion of 20 articles that met the eligibility criteria. Sixteen studies reported outcomes related to endurance performance measured through field-based tests, while five studies provided results from direct measurements of maximal oxygen uptake (VO2max). Results showed a non-significant small-magnitude favoring effect for the HIIT groups compared to the SSG groups (ES=0.37, p=0.074) for endurance, while a non-significant small-magnitude favoring SSGs was observed (ES=-0.20, p=0.303) for VO2max. Despite the very low certainty of evidence, the findings suggest similar effects induced by both SSG and HIIT on improving endurance performance and VO2max.
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Affiliation(s)
- Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Viana do Castelo, Portugal
- Research Center in Sports Performance, Recreation, Innovation and Technology (SPRINT), Melgaço, Portugal
| | - Jason Moran
- School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Colchester, Essex, United Kingdom of Great Britain and Northern Ireland
| | - Rodrigo Ramirez-Campillo
- Exercise and Rehabilitation Sciences Institute, Exercise and Rehabilitation Sciences Institute. School of Physical Therapy. Faculty of Rehabilitation Sciences. Universidad Andres Bello. Santiago, Chile, Santiago, Chile
| | - Marco Beato
- School of Health and Sports Science, University of Suffolk, Ipswich, United Kingdom of Great Britain and Northern Ireland
| | - José Afonso
- Centre of Research, Education, Innovation, and Intervention in Sport (CIFI2D), Faculty of Sport, University of Porto, University of Porto, Porto, Portugal
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4
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Li QZ, Fang Q, Zhao XT, Peng W. Motor ability development by integrating small-sided games into physical education class. Front Psychol 2024; 15:1259924. [PMID: 38318084 PMCID: PMC10839081 DOI: 10.3389/fpsyg.2024.1259924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 01/11/2024] [Indexed: 02/07/2024] Open
Affiliation(s)
- Quan Zhi Li
- School of Sport and Health, Nanjing Sport Institute, Nanjing, Jiangsu, China
| | - Qun Fang
- School of Physical Education, Qingdao University, Qingdao, Shandong, China
| | - Xi Tang Zhao
- School of Sport and Health, Nanjing Sport Institute, Nanjing, Jiangsu, China
| | - Wan Peng
- School of Sport and Health, Nanjing Sport Institute, Nanjing, Jiangsu, China
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Stathas I, Kalliakmanis A, Kekelekis A, Danassi Afentaki D, Tsepis E, Fousekis K. Effectiveness of an On-Field Rehabilitation framework for return to sports in injured male professional football players: a single-blinded, prospective, randomised controlled trial. BMJ Open Sport Exerc Med 2024; 10:e001849. [PMID: 38268525 PMCID: PMC10806762 DOI: 10.1136/bmjsem-2023-001849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2023] [Indexed: 01/26/2024] Open
Abstract
Objectives In football, on-field rehabilitation (OFR) is critical during injury recovery for a player's safe return to sports (RTS). The study aimed to evaluate the effectiveness of an OFR framework for RTS in injured male professional football players. Trial design A prospective block-randomised controlled-parallel trial was conducted (level of evidence 1b). Methods Male professional football players (mean age, 26.3±3.6 years) from Greece diagnosed with an acute, lower limb musculoskeletal (MSK) injury (confirmed clinically and through imaging) participated in the study. During rehabilitation, the participants' OFR was guided by either the On-Field Rehabilitation (On FI.RE.) accelerated framework (experimental group) or a traditional OFR framework for a late injury recovery phase (comparison group). Between July 2021 and January 2022, 76 players were randomly allocated to the experimental group (n=38) and the comparison group (n=38). Participants were blinded during the study regarding intervention therapeutic protocols. The primary outcome measure was the effect of On FI.RE. framework on the time needed to return to team training (RTT) participation. The correlation between the time needed to return to on-field activity and RTT was calculated. Subsequent injuries were registered for a 12-month follow-up period. Results The intervention protocol, On FI.RE. framework, had a statistically significant effect on the time needed to RTT (F(1) = 49 626, p<0.001) with a large effect size (ES; η2=0.422) and fewer days (mean=23.8±9.1 days) needed than the comparison group (mean=30.3±9.8 days). There was a strong correlation between return to on-field activity and the time needed to RTT (r(76) = 0.901, p<0001) with a large ES (r>0.5). Six subsequent injuries were registered in the traditional OFR framework group, and one subsequent injury in the On FI.RE. framework group after a follow-up period of 12 months. Conclusion The On FI.RE., an accelerated OFR framework during injury recovery, is more effective than a traditional OFR framework, reducing the time a player needs to RTS. It entails a very low risk of reinjury. Trial registration number NCT05163470.
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Affiliation(s)
- Ioannis Stathas
- Physiotherapy Department, School of Health Rehabilitation Sciences, University of Patras, Patra, Greece
- Head of Physiotherapy and rehabilitation department, OFI Crete FC, Herakleion, Crete, Greece
| | | | - Afxentios Kekelekis
- Laboratory of Neuromechanics, School of Physical Education and Sport Science at Serres, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Elias Tsepis
- Physiotherapy Dept School of Health Rehabilitation Sciences, University of Patras, Patra, Greece
| | - Konstantinos Fousekis
- Physiotherapy Department Therapeutic exercise and Sports Rehabilitation exercise laboratory, University of Patras, Patra, Greece
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Chmura P, Chmura J, Chodor W, Drożdżowski A, Rokita A, Konefał M. The effects of high-intensity interval training at the anaerobic and psychomotor fatigue thresholds on physiological parameters in young soccer players: a prospective study. Front Physiol 2023; 14:1221121. [PMID: 37745255 PMCID: PMC10513167 DOI: 10.3389/fphys.2023.1221121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/22/2023] [Indexed: 09/26/2023] Open
Abstract
This study aimed to investigate the effects of a 4-week specific high-intensity interval training (HIIT) program performed between the anaerobic threshold (ANT) and the psychomotor fatigue threshold (PFT) on physiological parameters in 14 professional soccer players at the under-17 level. The first and second stages of the research protocol included a treadmill running exercise with increasing load and six 3-min four-versus-four games of soccer with a 3-min break between games. Players then participated in a training microcycle involving three specific HIIT exercises twice per week for 4 weeks, after which they repeated stages one and two, followed by an assessment of changes. The measurement of lactate (LA) determined ANT, whereas the choice reaction time (CRT) indicated PFT among other selected physiological parameters. The repeated-measure analysis of variance (ANOVA) compared mean values for the examined variables using Bonferroni post hoc test. It demonstrated significantly increased maximal oxygen consumption (VO2 max) from 45.9 ± 3.0 to 48.7 ± 2.6 at the ANT and from 49.1 ± 3.4 to 52.0 ± 3.6 on the PFT after 4 weeks of training. A significant increase in the running speed (RS) at both thresholds and heart rate (HR) at the ANT (p ≤ 0.05) was also recorded. Moreover, the players exceeded their intensity of effort during ANT while playing four-versus-four soccer matches, but they did not reach intensity during PFT. In conclusion, the findings of the study demonstrated that both thresholds shifted toward higher loads and the proposed specific HIIT effectively increased the exercise capacity of soccer players.
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Affiliation(s)
- Paweł Chmura
- Department of Team Games, Wroclaw University of Health and Sport Sciences, Wroclaw, Poland
- Latvian Academy of Sport Education, Rīga LV, Latvia
| | - Jan Chmura
- Department of Human Motor Skills, Wroclaw University of Health and Sport Sciences, Wroclaw, Poland
| | - Wiktor Chodor
- Department of Team Games, Wroclaw University of Health and Sport Sciences, Wroclaw, Poland
| | - Adrian Drożdżowski
- Department of Team Games, Wroclaw University of Health and Sport Sciences, Wroclaw, Poland
| | - Andrzej Rokita
- Department of Team Games, Wroclaw University of Health and Sport Sciences, Wroclaw, Poland
| | - Marek Konefał
- Department of Human Motor Skills, Wroclaw University of Health and Sport Sciences, Wroclaw, Poland
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Stankovic M, Djordjevic D, Trajkovic N, Milanovic Z. Effects of High-Intensity Interval Training (HIIT) on Physical Performance in Female Team Sports: A Systematic Review. SPORTS MEDICINE - OPEN 2023; 9:78. [PMID: 37594624 PMCID: PMC10439062 DOI: 10.1186/s40798-023-00623-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 07/28/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND There is limited information regarding adaptation of HIIT in female athletes which is important since the adaptation to HIIT may be different compared to male athletes. Therefore, the aim of this systematic review was to summarize the effects of HIIT on physical performance in female team sports athletes. METHODS The following databases Google Scholar, PubMed, Web of Science, Cochrane Library, ProQuest and Science Direct were searched prior to September 2nd, 2022. The inclusion criteria were longitudinal studies written in English, elite, sub-elite or college female team sports participants, and HIIT intensity had to be at 80-100% maximal heart rate. There were no exclusion criteria regarding the age of the participants or their training experience. The primary outcome measures were maximal oxygen uptake (VO2max), repeated sprint ability (RSA), change of direction speed, speed, explosive strength and body composition. RESULTS A total of 13 studies met the inclusion criteria, with a total of 230 participants. HIIT improved VO2max in five studies (ES from 0.19 to 1.08), while three studies showed improvement in their RSA (ES from 0.32 to 0.64). In addition, change of direction speed was improved in five studies (ES from 0.34 to 0.88), while speed improved in four studies (ES from 0.12 to 0.88). Explosive strength results varied (ES from 0.39 to 1.05), while in terms of body composition, the results were inconsistent through observed team sports. CONCLUSION HIIT has significant effects on VO2max, RSA, change of direction speed, speed and explosive strength in female team sports, regardless of the competition level.
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Affiliation(s)
- Mima Stankovic
- Faculty of Sport and Physical Education, University of Niš, Čarnojevičeva 10a, 18000, Niš, Serbia
| | - Dusan Djordjevic
- Faculty of Sport and Physical Education, University of Niš, Čarnojevičeva 10a, 18000, Niš, Serbia
| | - Nebojsa Trajkovic
- Faculty of Sport and Physical Education, University of Niš, Čarnojevičeva 10a, 18000, Niš, Serbia
| | - Zoran Milanovic
- Faculty of Sport and Physical Education, University of Niš, Čarnojevičeva 10a, 18000, Niš, Serbia.
- Science and Research Centre, Institute for Kinesiology Research, Garibaldijeva 1, 6000, Koper, Slovenia.
- Faculty of Sports Studies, Incubator of Kinanthropological Research, Masaryk University, 60200, Brno, Czech Republic.
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Thurlow F, Weakley J, Townshend AD, Timmins RG, Morrison M, McLaren SJ. The Acute Demands of Repeated-Sprint Training on Physiological, Neuromuscular, Perceptual and Performance Outcomes in Team Sport Athletes: A Systematic Review and Meta-analysis. Sports Med 2023; 53:1609-1640. [PMID: 37222864 PMCID: PMC10356687 DOI: 10.1007/s40279-023-01853-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2023] [Indexed: 05/25/2023]
Abstract
BACKGROUND Repeated-sprint training (RST) involves maximal-effort, short-duration sprints (≤ 10 s) interspersed with brief recovery periods (≤ 60 s). Knowledge about the acute demands of RST and the influence of programming variables has implications for training prescription. OBJECTIVES To investigate the physiological, neuromuscular, perceptual and performance demands of RST, while also examining the moderating effects of programming variables (sprint modality, number of repetitions per set, sprint repetition distance, inter-repetition rest modality and inter-repetition rest duration) on these outcomes. METHODS The databases Pubmed, SPORTDiscus, MEDLINE and Scopus were searched for original research articles investigating overground running RST in team sport athletes ≥ 16 years. Eligible data were analysed using multi-level mixed effects meta-analysis, with meta-regression performed on outcomes with ~ 50 samples (10 per moderator) to examine the influence of programming factors. Effects were evaluated based on coverage of their confidence (compatibility) limits (CL) against elected thresholds of practical importance. RESULTS From 908 data samples nested within 176 studies eligible for meta-analysis, the pooled effects (± 90% CL) of RST were as follows: average heart rate (HRavg) of 163 ± 9 bpm, peak heart rate (HRpeak) of 182 ± 3 bpm, average oxygen consumption of 42.4 ± 10.1 mL·kg-1·min-1, end-set blood lactate concentration (B[La]) of 10.7 ± 0.6 mmol·L-1, deciMax session ratings of perceived exertion (sRPE) of 6.5 ± 0.5 au, average sprint time (Savg) of 5.57 ± 0.26 s, best sprint time (Sbest) of 5.52 ± 0.27 s and percentage sprint decrement (Sdec) of 5.0 ± 0.3%. When compared with a reference protocol of 6 × 30 m straight-line sprints with 20 s passive inter-repetition rest, shuttle-based sprints were associated with a substantial increase in repetition time (Savg: 1.42 ± 0.11 s, Sbest: 1.55 ± 0.13 s), whereas the effect on sRPE was trivial (0.6 ± 0.9 au). Performing two more repetitions per set had a trivial effect on HRpeak (0.8 ± 1.0 bpm), B[La] (0.3 ± 0.2 mmol·L-1), sRPE (0.2 ± 0.2 au), Savg (0.01 ± 0.03) and Sdec (0.4; ± 0.2%). Sprinting 10 m further per repetition was associated with a substantial increase in B[La] (2.7; ± 0.7 mmol·L-1) and Sdec (1.7 ± 0.4%), whereas the effect on sRPE was trivial (0.7 ± 0.6). Resting for 10 s longer between repetitions was associated with a substantial reduction in B[La] (-1.1 ± 0.5 mmol·L-1), Savg (-0.09 ± 0.06 s) and Sdec (-1.4 ± 0.4%), while the effects on HRpeak (-0.7 ± 1.8 bpm) and sRPE (-0.5 ± 0.5 au) were trivial. All other moderating effects were compatible with both trivial and substantial effects [i.e. equal coverage of the confidence interval (CI) across a trivial and a substantial region in only one direction], or inconclusive (i.e. the CI spanned across substantial and trivial regions in both positive and negative directions). CONCLUSIONS The physiological, neuromuscular, perceptual and performance demands of RST are substantial, with some of these outcomes moderated by the manipulation of programming variables. To amplify physiological demands and performance decrement, longer sprint distances (> 30 m) and shorter, inter-repetition rest (≤ 20 s) are recommended. Alternatively, to mitigate fatigue and enhance acute sprint performance, shorter sprint distances (e.g. 15-25 m) with longer, passive inter-repetition rest (≥ 30 s) are recommended.
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Affiliation(s)
- Fraser Thurlow
- School of Behavioural and Health Sciences, Australian Catholic University, Brisbane, Australia.
- Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre, Australian Catholic University, Brisbane, Australia.
| | - Jonathon Weakley
- School of Behavioural and Health Sciences, Australian Catholic University, Brisbane, Australia
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, UK
- Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre, Australian Catholic University, Brisbane, Australia
| | - Andrew D Townshend
- School of Behavioural and Health Sciences, Australian Catholic University, Brisbane, Australia
| | - Ryan G Timmins
- School of Behavioural and Health Sciences, Australian Catholic University, Brisbane, Australia
- Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre, Australian Catholic University, Brisbane, Australia
| | - Matthew Morrison
- School of Behavioural and Health Sciences, Australian Catholic University, Brisbane, Australia
- Sports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre, Australian Catholic University, Brisbane, Australia
| | - Shaun J McLaren
- Newcastle Falcons Rugby Club, Newcastle Upon Tyne, UK
- Institute of Sport, Manchester Metropolitan University, Manchester, UK
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Ltifi MA, Turki O, Racil G, Larion A, Chelly MS, Ben Saad H, Khalifa R, Chamari K, Padulo J. A 3-min weighted vests re-warmups induce sprint performance enhancements at the start of the second half of a soccer match-play. Front Physiol 2023; 14:1173991. [PMID: 37485066 PMCID: PMC10358844 DOI: 10.3389/fphys.2023.1173991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 06/26/2023] [Indexed: 07/25/2023] Open
Abstract
Purpose: This study aimed to investigate the effect of re-warm-up (RWUP) activities consisting of three sets of 15-m sprints with weighted vests on 20-m sprint performance after the break. Methods: Using a randomized, and counterbalanced cross-over design, twenty U15 elite soccer players performed four RWUP trials which consisted of 15-min of passive rest (control: CONT), 3 × 15-m sprint (RW0%), sprinting with a vest-loaded at 5% of body-mass (BM) (RW5%), sprinting with a 10% BM vest (RW10%). The 3-min RWUP protocols started 10-min after the commencement of the 15-min between-halves break and concluded 2-min before its end. During each testing session, the participant's RPE scores, and 20-m sprint performance were registered before the first half, and at the end of the break of the simulated match-play. Results: Significant time effects [F (1.72) = 54.37, d = 1.88, p < 0.001; F (1.72) = 9.07, d = 0.77, p = 0.003], and condition effects [F (3.72) = 11.81, d = 1.53, p < 0.001; F (3.72) = 7.36, d = 1.21, p = 0.003] were observed for RPE scores and 20-m sprint performance, respectively. Significant condition-by-time interactions were found for RPE scores (p < 0.003, d = 0.54), and 20-m sprint performance (p < 0.002, d = 0.70). Contrast analysis showed significantly higher RPE scores (p < 0.001, d = 1.55), and improved 20-m sprint performance (p = 0.0004, d = 1.19) in the RW10% condition compared to all other conditions. Conclusion: Sprinting for 3-min with a 10% body-mass vest resulted in the highest RPE scores and the most substantial enhancements in 20-m sprint performance. Young elite soccer players should incorporate 10% body-mass weighted vests in their re-warm-ups to boost post-break sprint performance.
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Affiliation(s)
- Mohamed Amine Ltifi
- Higher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis, Tunisia
- Research Laboratory (LR23JS01) “Sport Performance, Health & Society”, Higher Institute of Sport and Physical Education of Ksar Said, University of Manouba, Tunis, Tunisia
| | - Olfa Turki
- Higher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis, Tunisia
- Research Laboratory (LR23JS01) “Sport Performance, Health & Society”, Higher Institute of Sport and Physical Education of Ksar Said, University of Manouba, Tunis, Tunisia
| | - Ghazi Racil
- Higher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis, Tunisia
- Research Laboratory (LR23JS01) “Sport Performance, Health & Society”, Higher Institute of Sport and Physical Education of Ksar Said, University of Manouba, Tunis, Tunisia
| | - Alin Larion
- Faculty of Physical Education and Sport, Ovidius University of Constanta, Constanta, Romania
| | - Mohamed Souhaiel Chelly
- Higher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis, Tunisia
- Research Laboratory (LR23JS01) “Sport Performance, Health & Society”, Higher Institute of Sport and Physical Education of Ksar Said, University of Manouba, Tunis, Tunisia
| | - Helmi Ben Saad
- Faculty of Medicine of Sousse, Hospital Farhat HACHED of Sousse, Research Laboratory Heart Failure, University of Sousse, Sousse, Tunisia
| | - Riadh Khalifa
- Higher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis, Tunisia
- Research Laboratory (LR23JS01) “Sport Performance, Health & Society”, Higher Institute of Sport and Physical Education of Ksar Said, University of Manouba, Tunis, Tunisia
| | - Karim Chamari
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
| | - Johnny Padulo
- Department of Biomedical Sciences for Health, Università Degli Studi di Milano, Milan, Italy
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10
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Kumari A, Singh P, Varghese V. Effects of high-intensity interval training on aerobic capacity and sports-specific skills in basketball players. J Bodyw Mov Ther 2023; 34:46-52. [PMID: 37301556 DOI: 10.1016/j.jbmt.2023.04.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/15/2022] [Accepted: 04/11/2023] [Indexed: 06/12/2023]
Abstract
INTRODUCTION High intensity interval training (HIIT) are widely used to improve the cardiac performance in Basketball players. The current study aims to evaluate the effectiveness of High-Intensity Interval Training on the Aerobic Capacity and sports-specific skills in basketball players. METHODS 40 male basketball players in the age group 18-25 years were recruited after necessary ethical clearance. Athletes were categorized into two groups of 20 people each: Group 1 control group (age: 21.9 ± 2.4 years, height: 184.6 ± 12.1 cm BMI: 23 ± 3 kg/m2) and Group 2 study group with HIIT (age: 21.4 ± 2.6 years, height: 177.4 ± 6.0 cm BMI: 22.1 ± 2.3 kg/m2). The study group players underwent 5 weeks (10 sessions) of HIIT training. Pre and post intervention evaluation of the Aerobic Capacity (VO2 max) and sports-specific skills were quantified for both the groups. Statistical analysis was performed using one tailed t-test with p < 0.05 for significance. Cohen's D method was used to calculate the effect size and minimum important difference. RESULT There was a significant increase (p < 0.05) in VO2 max (pre:52.8 ± 2.3 ml/min/kg to post: 54.5 ± 2.4 ml/min/kg) in Group 2 whereas in Group 1 the change was not significant (pre:51.1 ± 2.6 ml/min/kg to post: 51.4 ± 2.9 ml/min/kg). Similarly, there was an increase in agility for Group 2 (pre:11.0 ± 1.0 s to post: 10.1 ± 1.0 s) compared to Group 1. In sports specific skills: Control Dribble, passing skills, Lower body power and shooting skills there was a significant increase in post HIIT training for Group 2, whereas in Group 1 there was no significant difference. DISCUSSION The HIIT training improved the aerobic capacity (VO2 max) and sports-specific skills in basketball players. CONCLUSION A 5-week HIIT training improved the aerobic capacity and sports specific skills and may be included as a part of training regime to improve the athletic performance in basketball players.
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Affiliation(s)
- Anu Kumari
- Indian Spinal Injuries Centre- Institute of Rehabilitation Sciences, Opp. Vasant Valley School, IAA Colony, Sector C, Vasant Kunj, New Delhi, 110070, India.
| | - Piyush Singh
- Indian Spinal Injuries Centre- Institute of Rehabilitation Sciences, Opp. Vasant Valley School, IAA Colony, Sector C, Vasant Kunj, New Delhi, 110070, India.
| | - Vicky Varghese
- Department of Neurosurgery, Medical College of Wisconsin, 8701 W Watertown Plank Rd, Wauwatosa, WI, 53226, USA.
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11
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Hostrup M, Bangsbo J. Performance Adaptations to Intensified Training in Top-Level Football. Sports Med 2023; 53:577-594. [PMID: 36380164 PMCID: PMC9667002 DOI: 10.1007/s40279-022-01791-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2022] [Indexed: 11/17/2022]
Abstract
Because physical demands are surging in football (soccer, USA), clubs are more and more seeking players who have a high capacity to perform repeated intense exercise. High-intensity interval training (HIIT), comprising exercise performed at intensities near or exceeding the capacity of aerobic energy systems, effectively enhances the physical conditioning of players. But given that HIIT imposes high loads, it increases the risk of overload-associated match performance decline and injury. This makes some coaches inclined to conduct HIIT in the weeks leading up to the season and during the season. Therefore, the challenge is how to optimize and dose HIIT during these phases, as they can be decisive. Studies have highlighted the utility of conducting periods of intensified training to overcome the risk of overload while at the same time enhancing performance. During intensified training periods of typically a few weeks, intensity is increased by enlarging the amount of HIIT, for example, aerobic high-intensity training or speed endurance training, while volume at low-to-moderate intensity is significantly reduced. The outcome depends on training composition and prescription-most notably, intensity and duration of bouts and recovery. When work intervals are prescribed for a few minutes at intensities > 90% heart rate max (i.e., aerobic high-intensity training), then beneficial adaptations pertaining to aerobic power and capacity are apparent. But when work intervals are conducted at much higher intensities, as all-out efforts or sprinting of typically 10- to 40-s duration with longer recovery periods (i.e., speed endurance training), beneficial adaptations pertaining to anaerobic energy systems, ion handling, and fatigue resilience are commonly observed. In this review, we discuss the utility of conducting intensified training periods to enhance performance in elite football players during the late preparation phase and competitive season.
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Affiliation(s)
- Morten Hostrup
- The August Krogh Section for Human Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, August Krogh Building 2nd Floor, Universitetsparken 13, 2100, Copenhagen, Denmark.
| | - Jens Bangsbo
- The August Krogh Section for Human Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, August Krogh Building 2nd Floor, Universitetsparken 13, 2100, Copenhagen, Denmark
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12
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Zhang ZY, Ji HS, He JX, Huang LJ, Ding SC, Sun J, Li DY. A Meta-analysis of the Effects of High-Intensity Interval Training and Small-Sided Games on Sprint Performance in Adolescents. Strength Cond J 2023. [DOI: 10.1519/ssc.0000000000000773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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13
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Ruscello B, Pantanella L, Iemme P, Filetti C, Porta M, D'Ottavio S, Marcelli L, Apollaro G, Morganti G, Grossi A, Esposito M, Padua E. Temporal patterns of fatigue in repeated sprint ability testing in soccer players and acute effects of different IHRs: a comparison between genders. J Sports Med Phys Fitness 2023; 63:213-222. [PMID: 35816140 DOI: 10.23736/s0022-4707.22.13822-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Repeated sprint ability (RSA) in soccer is deemed fundamental to ensure high level of performance. The aim of this study was to investigate the acute effects of two different Initial Heart Rates (IHR) on fatigue when testing RSA in males and females' soccer players and to compare the respective patterns of fatigue. METHODS Nineteen female soccer players (age: 22.5±3.3 years, height 163.9±7.3 cm, body weight 54.3±6.4 kg, BMI 20.6±1.5 kg·m-2) and 15 male soccer players (age: 17.9±1.5 years, height 175.9±5.8 cm, body weight 68.5±9.6 kg, BMI 22.3±1.5 kg·m-2) participated in this study. HRs reached at the end of two different warm-up protocols (~90 vs. ~ 60% HR<inf>max</inf>), have been selected and the respective RSA performances were compared, within and between the groups of participants. Two sets of ten shuttle-sprints (15+15 m) with a 1:3 exercise to rest ratio with different IHR% were administered, in different days, in randomized order. To compare the different sprint performances, we employed the calculated Fatigue Index (FI%). Blood lactate concentration (BLa-) was also measured before and after testing, to compare metabolic energy. RESULTS Significant differences among trials within each set (P<0.01) were found in both genders. Differences between sets were found in male players, (Factorial ANOVA 2x5; P<0.001), not in female. BLa- after warm-up was higher in 90% vs. 60% HR<inf>max</inf> (P<0.05), in both genders but at the completion of RSA tests (after 3 minutes) the differences were not significant (P>0.05). CONCLUSIONS difference between genders were found, suggesting specific approach in testing and training RSA in soccer players.
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Affiliation(s)
- Bruno Ruscello
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele University, Rome, Italy - .,School of Sports and Exercise Sciences, Faculty of Medicine and Surgery, Tor Vergata University, Rome, Italy - .,Department of Industrial Engineering, Faculty of Engineering, Tor Vergata University, Rome, Italy - .,LUISS SportLab, LUISS University, Rome, Italy -
| | - Laura Pantanella
- School of Sports and Exercise Sciences, Faculty of Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Pietro Iemme
- School of Sports and Exercise Sciences, Faculty of Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Cristoforo Filetti
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele University, Rome, Italy.,School of Sports and Exercise Sciences, Faculty of Medicine and Surgery, Tor Vergata University, Rome, Italy.,Paris Saint Germain Football Club, Paris, France
| | - Marco Porta
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele University, Rome, Italy
| | - Stefano D'Ottavio
- School of Sports and Exercise Sciences, Faculty of Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Lorenzo Marcelli
- Department of Industrial Engineering, Faculty of Engineering, Tor Vergata University, Rome, Italy.,School of Sports and Exercise Sciences, UNICUSANO, Rome, Italy
| | - Gennaro Apollaro
- School of Sports and Exercise Sciences, Faculty of Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Gabriele Morganti
- School of Sports and Exercise Sciences, Faculty of Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Alberto Grossi
- School of Sports and Exercise Sciences, Faculty of Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Mario Esposito
- School of Sports and Exercise Sciences, Faculty of Medicine and Surgery, Tor Vergata University, Rome, Italy.,LUISS SportLab, LUISS University, Rome, Italy.,Faculty of Medicine, University of Ostrava, Ostrava, Czech Republic
| | - Elvira Padua
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele University, Rome, Italy.,School of Sports and Exercise Sciences, Faculty of Medicine and Surgery, Tor Vergata University, Rome, Italy
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Yan S, Kim Y, Choi Y. Aerobic and Anaerobic Fitness according to High-Intensity Interval Training Frequency in Youth Soccer Players in the Last Stage of Rehabilitation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:15573. [PMID: 36497647 PMCID: PMC9735649 DOI: 10.3390/ijerph192315573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
In the last stage of rehabilitation, high-intensity interval training (HIIT) for improving physical fitness is appropriate for return-to-play; however, some youth athletes visit the rehabilitation center less frequently due to conflict with their distance to center, and academic schedule. We tested the effects of short-term low-frequency HIIT in 54 youth male soccer players, after dividing them into a low-frequency group (LFG, n = 27 players) and a high-frequency group (HFG, n = 27 players). Muscle mass and body fat were measured using a body composition test, and VO2peak and exercise duration were measured using a treadmill. Five sets of anaerobic peak power and fatigue were measured repeatedly using the Wingate test. To evaluate knee joint muscle function, 60°/s, 180°/s, and 240°/s were measured using the isokinetic muscle function equipment. HIIT sessions were conducted twice a week for LFG and five times a week for HFG for 4 weeks. In this study, Wilcoxon signed-rank test and Mann-Whitney U test were mainly used for analysis. Significant improvements in VO2peak, anaerobic peak power, and knee strength were observed after intervention in both groups (p < 0.05). In the post test, there were significant differences between groups in VO2peak (LFG, 56.4 vs. HFG, 57.1 mL/kg/min; p = 0.035), exercise duration (LFG, 972.3 vs. HFG, 990.4 s; p = 0.041), Wingate anaerobic peak power 5 sets (LFG, 606.3 vs. HFG, 629.3 Watt; p = 0.039), and muscle function test 240°/s (LFG, 68.5 vs. HFG, 70.2 Jouls; p = 0.010). However, neither group showed significant changes in body composition, such as muscle mass or body fat (p > 0.05). In conclusion, although it is a short-term training, the effect of HIIT was shown in the HFG as well as LFG. Although HFG improved physical fitness, significant improvement was also achieved in LFG. Therefore, in the last stage of rehabilitation, low frequency as well as high frequency HIIT would be an appropriate training method to improve physical fitness for youth soccer players.
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Affiliation(s)
- Shuren Yan
- Department of Physical Education, Luoyang Normal University, Luoyang 471934, China
| | - Yonghwan Kim
- Department of Physical Education, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea
| | - Yongchul Choi
- Department of Physical Education, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea
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15
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Clemente FM, Soylu Y, Arslan E, Kilit B, Garrett J, van den Hoek D, Badicu G, Filipa Silva A. Can high-intensity interval training and small-sided games be effective for improving physical fitness after detraining? A parallel study design in youth male soccer players. PeerJ 2022; 10:e13514. [PMID: 35795177 PMCID: PMC9252184 DOI: 10.7717/peerj.13514] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/09/2022] [Indexed: 01/17/2023] Open
Abstract
Background The aim of this study was two-fold: (i) analyze the within-group physical fitness adaptations promoted by a detraining period (4 weeks) followed by an intervention period (4 weeks) using small-sided games (SSGs) or running-based high intensity interval training (HIIT); and (ii) analyze the between-group differences aiming to identify the effectiveness of each training intervention on the physical fitness of youth male soccer players. Methods This study followed a randomized parallel study design. Forty male soccer players (age: 16.4 ± 0.5 years old) were assessed three times: (i) baseline; (ii) after 4 weeks of detraining; and (iii) after a retraining period of 4 weeks. After returning from detraining, players were randomized to an SSG-based training intervention (n = 20) or running-based HIIT (n = 20). Interventions lasted 4 weeks, with a training frequency of three sessions per week. At all timepoints, players were assessed by: (i) anthropometry (height, body mass, fat mass (FM)), countermovement jump (CMJ), standing broad jump (SBJ), triple hop jump (THJ), linear sprint test (5-, 10-, and 20-m), zig-zag test with (ZZwB) and without (ZZwoB) ball, three corner run test (3CRT), Y-balance test and the Yo-Yo intermittent recovery test level 1 (YYIRT). Mixed ANOVA (time * group) was conducted for testing interactions between the three timepoints of repeated measures and the two groups. Effect size (ES) for pairwise comparisons was calculated using Cohen's. Results Between-group analysis revealed significantly smaller SBJ (t = -2.424, p = 0.020, d = -0.767 small ES) and THT (t = -4.353, p < 0.001, d = -1.376 large ES) in the SSG group after the retraining period. At the same time, SSG presented significantly greater FM after retraining compared to HIIT (t = 3.736, p < 0.001, d = 1.181 large ES). Additionally, SSG had significantly smaller values than HIIT in the ZZwB (t = -3.645, p < 0.001, d = -1.153 large ES), but greater times in the ZZwoB (t = 2.679, p = 0.011, d = 0.847 large ES) and 3CRT (t = 3.126, p = 0.003, d = 0.989 large ES). Conclusions Although SSG and HIIT interventions improved physical fitness outcomes after a period of detraining, they were not able to effectively restore body composition, CMJ, 20-m sprint, ZZwB, and YYIRT compared with the baseline assessments (before detraining). Only HIIT was significantly effective for restoring SBJ, short linear sprin speed, and change-of-direction compared with baseline. HIIT was also significantly better than SSG in improving SBJ and ZZwoB. Although the small sample, the non determination of maturation status and the need to be cautious regarding generalization, HIIT appears to be more beneficial than SSG after a detraining period for recovery of body composition and physical fitness qualities in this specific context of youth soccer players.
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Affiliation(s)
- Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, Viana do Castelo, Portugal, Melgaço, Portugal,Instituto de Telecomunicações, Delegação da Covilhã, Lisboa, Portugal, Lisboa, Portugal,Research Center in Sports Performance, Recreation, Innovation and Technology (SPRINT), Melgaço, Portugal, Melgaço, Portugal
| | - Yusuf Soylu
- Faculty of Sport Sciences, Tokat Gaziosmanpasa University, Tokat, Turkey, Yokat, Turkey
| | - Ersan Arslan
- Faculty of Sport Sciences, Tokat Gaziosmanpasa University, Tokat, Turkey, Tokat, Turkey
| | - Bulent Kilit
- Faculty of Sport Sciences, Tekirdag Namik Kemal University, Tekirdag, Turkey, Tekirdag, Turkey
| | - Joel Garrett
- Australian Catholic University, School of Behavioural and Health Sciences, Brisbane, Queensland, Australia, Queensland, Australia
| | - Daniel van den Hoek
- Australian Catholic University, School of Behavioural and Health Sciences, Brisbane, Queensland, Australia, Queensland, Australia
| | - Georgian Badicu
- Department of Physical Education and Special Motricity, Faculty of Physical Education and Mountain Sports, Transilvania University of Braşov, Braşov, Romania, Brasov, Romania
| | - Ana Filipa Silva
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, Viana do Castelo, Portugal, Melgaço, Portugal,Research Center in Sports Performance, Recreation, Innovation and Technology (SPRINT), Melgaço, Portugal, Melgaço, Portugal,The Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), Vila Real, Portugal, Vila Real, Portugal
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16
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Effects of small-sided games and running-based high-intensity interval training on body composition and physical fitness in under-19 female soccer players. BMC Sports Sci Med Rehabil 2022; 14:119. [PMID: 35765044 PMCID: PMC9238068 DOI: 10.1186/s13102-022-00516-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 06/24/2022] [Indexed: 11/10/2022]
Abstract
Background The aim of this study was to compare the effects of small-sided games (SSGs) and running-based high-intensity interval training (HIIT) on the body composition and physical fitness of youth female soccer players.
Methods This study followed a randomized parallel study design. Twenty-four female soccer players (age: 18.63 ± 2.36 years) were randomly allocated to two training groups (SSG, n = 12; and HIIT, n = 12). The training intervention had a duration of eight weeks, consisting of three training sessions per week. Players were assessed twice (pre- and post-intervention) for anthropometrics, vertical (countermovement jumps, CMJ; and drop jumps, DJ) and horizontal jumping (single, triple and crossover hop), sprinting (10- and 30-m), change-of-direction (COD), COD deficit and final velocity at 30–15 Intermittent Fitness Test (VIFT). A covariance analysis (ANCOVA) was used to determine differences between the groups in the effect on post-intervention by controlling for covariates (pre-intervention). The within-group analysis (time) was performed using a paired t-test, while the between-group analysis per assessment moment was performed using an independent t-test. Results The between-group analysis with ANCOVA revealed that there are no significant differences between the SSG and HIIT groups in the post-intervention for any outcome (p > 0.05). The within-group analysis revealed significant improvements in both the SSG and HIIT groups in CMJ (p < 0.05), single, triple and crossover hops (p < 0.05), RSI DJ 30-cm and RSI DJ 40-cm (p < 0.05), VIFT (p < 0.05) and COD (p < 0.05). Conclusions SSG and HIIT are both effective for improving vertical and horizontal jumping ability, change-of-direction, and aerobic capacity status measured at a progressive and intermittent multistage test in youth soccer players.
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Silva AF, Aghidemand MH, Kharatzadeh M, Ahmadi VK, Oliveira R, Clemente FM, Badicu G, Murawska-Ciałowicz E. Effects of High-Intensity Resistance Training on Physical Fitness, Hormonal and Antioxidant Factors: A Randomized Controlled Study Conducted on Young Adult Male Soccer Players. BIOLOGY 2022; 11:biology11060909. [PMID: 35741430 PMCID: PMC9220039 DOI: 10.3390/biology11060909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/09/2022] [Accepted: 06/10/2022] [Indexed: 11/16/2022]
Abstract
Purpose: The aim of this study was to test the effects of high-intensity resistance training (HIRT) intervention on the physical fitness, hormonal and antioxidant factors of adult male soccer players. Methods: A randomized controlled study design was implemented. Eighteen soccer players (age: 20.3 ± 0.66 years; stature: 174.0 ± 6.01 cm; body mass: 69.1 ± 6.4 kg; body mass index: 22.8 ± 1.6 kg/m2) voluntarily participated in this study. Players were assessed before and after an intervention lasting 8 weeks, with three training sessions a week. Assessments of physical fitness included the Yo-Yo intermittent recovery test level 1 (YYIRT1), 10-, 20-, and 30 m sprint time (ST), running-based anaerobic sprint test (RAST) and change-of-direction time (COD). Hormonal tests included cortisol, testosterone and growth hormone (GH), whereas the antioxidant assessment included superoxide dismutase (SOD), malondialdehyde (MDA) and glutathione (GSH). Results: Between-group analysis revealed no significant differences at baseline, whereas it revealed that HIRT presented significant better results than the control group on YYIRT (p = 0.032), 10 m ST (p = 0.041), 20 m ST (p = 0.040), 30 m ST (p = 0.044), RAST (p = 0.013), and COD (p = 0.031) after the intervention period. The within group analysis revealed that the HIRT group significantly improved the YYIRT1 (p < 0.001), VO2max (p < 0.001), 10 m ST (p < 0.001), 20 m ST (p = 0.006), 30 m ST (p < 0.001), RAST (p < 0.001) and COD (p < 0.001). Moreover, HIRT group significantly reduced the cortisol (p < 0.001) and MDA (p = 0.021), whereas it significantly increased the GH (p < 0.001), testosterone (p < 0.001), SOD (p = 0.009) and GSH (p = 0.005). Conclusions: The HIRT is effective for improving physical fitness, revealing significant better adaptations than controls. Moreover, hormonal and antioxidant adaptations are also confirmed after HIRT intervention.
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Affiliation(s)
- Ana Filipa Silva
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal;
- Research Center in Sports Performance, Recreation, Innovation and Technology (SPRINT), 4960-320 Melgaço, Portugal
- The Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), 5001-801 Vila Real, Portugal;
| | - Mohammad Hosein Aghidemand
- Department of Exercise Physiology, Faculty of Sport Sciences, Allameh Tabatabai University, Q756+R4F Dehkadeh-ye-Olympic, Tehran 14896-84511, Iran; (M.H.A.); (V.K.A.)
| | - Masoud Kharatzadeh
- Sports Scientist, Sepahan Football Club, Isfahan 81887-78473, Iran;
- Department of Exercise Physiology, Faculty of Sport Sciences, University of Isfahan, Isfahan 81746-7344, Iran
| | - Vahab Khan Ahmadi
- Department of Exercise Physiology, Faculty of Sport Sciences, Allameh Tabatabai University, Q756+R4F Dehkadeh-ye-Olympic, Tehran 14896-84511, Iran; (M.H.A.); (V.K.A.)
| | - Rafael Oliveira
- The Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), 5001-801 Vila Real, Portugal;
- Sports Science School of Rio Maior, Polytechnic Institute of Santarém, 2040-413 Rio Maior, Portugal
- Life Quality Research Centre, 2040-413 Rio Maior, Portugal
| | - Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal;
- Research Center in Sports Performance, Recreation, Innovation and Technology (SPRINT), 4960-320 Melgaço, Portugal
- Instituto de Telecomunicações, Delegação da Covilhã, 1049-001 Lisboa, Portugal
- Correspondence:
| | - Georgian Badicu
- Department of Physical Education and Special Motricity, University Transilvania of Brasov, 500068 Brasov, Romania;
| | - Eugenia Murawska-Ciałowicz
- Department of Physiology and Biochemistry, University School of Physical Education, 51-612 Wrocław, Poland;
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Arslan E, Kilit B, Clemente FM, Soylu Y, Sögüt M, Badicu G, Akca F, Gokkaya M, Murawska-Ciałowicz E. The Effects of Exercise Order on the Psychophysiological Responses, Physical and Technical Performances of Young Soccer Players: Combined Small-Sided Games and High-Intensity Interval Training. BIOLOGY 2021; 10:1180. [PMID: 34827173 PMCID: PMC8615019 DOI: 10.3390/biology10111180] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 12/14/2022]
Abstract
This study aimed to compare the order effects of combined small-sided games (SSGs) and high-intensity interval training (HIIT) on the psychophysiological responses and physical and technical performances of young soccer players. Twenty-four soccer players (aged 14.63 ± 0.71 years) were randomly divided into SSGs + HIIT (n = 12) and HIIT + SSGs (n = 12) for 6 weeks. The SSGs consisted of two 4-16 min rounds of 2, 3, and four-a-side games with 2 min of passive resting, whereas the HIIT consisted of 6-10 min of high-intensity runs at varying intensities (from 90 to 100%). Pre-test and post-test elements included a 5-30 m sprint test, countermovement jump test, zigzag agility test with the ball and without the ball, repeated sprint ability test, speed dribbling ability test, three-corner run test, and Yo-Yo Intermittent Recovery Test level 1. Both combined training interventions produced similar improvements in physical performance and technical responses (p ≥ 0.05, d values ranging from 0.40 to 1.10). However, the combined HIIT + SSGs training produced meaningfully lower perceived exertion (p = 0.00, d = 2.98) and greater physical enjoyment (p = 0.00, d = 4.28) compared with the SSGs + HIIT intervention. Furthermore, the SSGs + HIIT group showed a higher training load than those from the HIIT + SSGs group for all weeks (p ≤ 0.05, d values ranging from 1.36 to 2.05). The present study's results might be used by coaches and practitioners to design training programmes for youth soccer players.
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Affiliation(s)
- Ersan Arslan
- Faculty of Sport Sciences, Tokat Gaziosmanpasa University, Tokat 60250, Turkey; (E.A.); (Y.S.)
| | - Bulent Kilit
- School of Physical Education and Sports, Tekirdag Namik Kemal University, Tekirdag 59030, Turkey;
| | - Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal;
| | - Yusuf Soylu
- Faculty of Sport Sciences, Tokat Gaziosmanpasa University, Tokat 60250, Turkey; (E.A.); (Y.S.)
| | - Mustafa Sögüt
- Department of Physical Education and Sports, Middle East Technical University, Ankara 06800, Turkey;
| | - Georgian Badicu
- Department of Physical Education and Special Motricity, University Transilvania of Brasov, 500068 Brasov, Romania;
| | - Firat Akca
- Faculty of Sport Sciences, Ankara University, Ankara 06560, Turkey; (F.A.); (M.G.)
| | - Mine Gokkaya
- Faculty of Sport Sciences, Ankara University, Ankara 06560, Turkey; (F.A.); (M.G.)
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Applicability of Field Aerobic Fitness Tests in Soccer: Which One to Choose? J Funct Morphol Kinesiol 2021; 6:jfmk6030069. [PMID: 34449680 PMCID: PMC8395732 DOI: 10.3390/jfmk6030069] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/07/2021] [Accepted: 08/16/2021] [Indexed: 11/24/2022] Open
Abstract
A desire to make fitness testing cheaper and easier to conduct in a team-sport setting has led to the development of numerous field aerobic fitness tests. This has contributed to a growing confusion among strength and conditioning coaches about which one to use. The main aim of this narrative review was to examine the reliability, validity, sensitivity and usefulness of the commonly used field aerobic fitness tests and to provide practical guidelines for their use in soccer. The University of Montreal track test (UMTT) and Vam Eval test seem the best options for estimation of maximal oxygen uptake (VO2max) while the highest signal-to-noise ratio of the 30-15 intermittent fitness test (30-15IFT) suggests its superior sensitivity to track changes in fitness. The UMTT and 30-15IFT are the best solutions for prescription of long and short high-intensity interval training sessions, respectively. All field tests mostly present with marginal usefulness, but the smallest worthwhile change for UMTT or Vam Eval test, Yo-YoIRT2 and 30-15IFT are smaller than their stage increment making the improvement of only one stage in the test performance already worthwhile. Strength and conditioning coaches are advised to choose the test based on their specific purpose of testing.
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Clemente FM, Ramirez-Campillo R, Sarmento H, Praça GM, Afonso J, Silva AF, Rosemann T, Knechtle B. Effects of Small-Sided Game Interventions on the Technical Execution and Tactical Behaviors of Young and Youth Team Sports Players: A Systematic Review and Meta-Analysis. Front Psychol 2021; 12:667041. [PMID: 34025529 PMCID: PMC8138063 DOI: 10.3389/fpsyg.2021.667041] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 04/07/2021] [Indexed: 11/25/2022] Open
Abstract
Background: Small-sided games (SSGs) are an adjusted form of official games that are often used in training scenarios to introduce a specific tactical issue to team sports players. Besides the acute effects of SSGs on players' performance, it is expectable that the consistent use of these drill-based games induces adaptations in the technical execution and tactical behaviors of youth team sports players. Objective: This systematic review with meta-analysis was conducted to assess the effects of SSG programs on the technical execution and tactical behaviors of young and youth team sports players. Data Sources: The data sources utilized were PubMed, Scopus, SPORTDiscus, and Web of Science. Study Eligibility Criteria: (i) Young and youth team sports players (i.e., < 18 years old) of any sex or skill level, without injury, illness, or other clinical conditions; (ii) SSGs-based programs not restricted to the duration and a minimum of one weekly training session; (iii) passive or active control groups; (iv) pre-post interventions values of technical execution and/or tactical behavior; (v) randomized and non-randomized controlled trials; and (vi) peer-reviewed original full-text studies written in English, Portuguese and/or Spanish. Results: The database search initially yielded 803 titles. From those, six articles were eligible for the systematic review and meta-analysis. None of the included studies presented tactical behavior outcomes. The results showed a small effect of SSGs on technical execution (ES = 0.59; 95% CI = 0.29 to 0.89; p < 0.001; I2 = 0.0%; Egger's test p = 0.590) when compared to controls. Sub-group analysis of the training factor revealed similar (p = 0.433) moderate (ES = 0.68, four study groups) and small (ES = 0.44, three study groups) improvements in technical execution after >17 and <17 SSG training sessions, respectively. Conclusions: This systematic review and meta-analysis revealed a significant beneficial effect of using SSG training programs for enhancing technical execution in young and youth players. The benefits were similar despite the various numbers of training sessions applied. Further studies should add tactical behaviors as one of the outcomes for controlling the effects of SSG training programs.
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Affiliation(s)
- Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana Do Castelo, Rua Escola Industrial e Comercial de Nun'Álvares, Viana Do Castelo, Portugal.,Instituto de Telecomunicações, Delegação da Covilhã, Lisboa, Portugal
| | - Rodrigo Ramirez-Campillo
- Department of Physical Activity Sciences, Universidad de Los Lagos, Santiago, Chile.,Centro de Investigación en Fisiología del Ejercicio, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
| | - Hugo Sarmento
- Research Unit for Sport and Physical Activity (CIDAF), Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal
| | | | - José Afonso
- Centre for Research, Education, Innovation and Intervention in Sport, Faculty of Sport of the University of Porto, Porto, Portugal
| | - Ana Filipa Silva
- N2i, Polytechnic Institute of Maia, Maia, Portugal.,The Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), Vila Real, Portugal
| | - Thomas Rosemann
- Institute of Primary Care, University of Zurich, Zurich, Switzerland
| | - Beat Knechtle
- Institute of Primary Care, University of Zurich, Zurich, Switzerland.,Medbase St. Gallen Am Vadianplatz, St. Gallen, Switzerland
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Clemente FM, Ramirez-Campillo R, Afonso J, Sarmento H, Rosemann T, Knechtle B. A Meta-Analytical Comparison of the Effects of Small-Sided Games vs. Running-Based High-Intensity Interval Training on Soccer Players' Repeated-Sprint Ability. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052781. [PMID: 33803379 PMCID: PMC7967484 DOI: 10.3390/ijerph18052781] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 11/16/2022]
Abstract
This systematic review with a meta-analysis was conducted to compare the effects of small-sided games (SSGs)-based interventions with the effects of running-based high-intensity interval training (HIIT) interventions on soccer players' repeated sprint ability (RSA). The data sources utilized were Web of Science, Scopus, SPORTDiscus, and PubMed. The study eligibility criteria were: (i) parallel studies (SSG-based programs vs. running-based HIIT) conducted in soccer players with no restrictions on age, sex, or competitive level; (ii) isolated intervention programs (i.e., only SSG vs. only running-based HIIT as individual forms) with no restrictions on duration; (iii) a pre-post outcome for RSA; (iv) original, full-text, peer-reviewed articles written in English. An electronic search yielded 513 articles, four of which were included in the present study. There was no significant difference between the effects of SSG-based and HIIT-based training interventions on RSA (effect size (ES) = 0.30; p = 0.181). The within-group analysis revealed no significant effect of SSG-based training interventions (ES = -0.23; p = 0.697) or HIIT-based training interventions (ES = 0.08; p = 0.899) on RSA. The meta-comparison revealed that neither SSGs nor HIIT-based interventions were effective in improving RSA in soccer players, and no differences were found between the two types of training. This suggests that complementary training may be performed to improve the effects of SSGs and HIIT. It also suggests that different forms of HIIT can be used because of the range of opportunities that such training affords.
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Affiliation(s)
- Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal
- Instituto de Telecomunicações, Delegação da Covilhã, 1049-001 Lisboa, Portugal
- Correspondence: (F.M.C.); (B.K.)
| | - Rodrigo Ramirez-Campillo
- Quality of Life and Wellness Research Group, Human Performance Laboratory, Department of Physical Activity Sciences, Universidad de Los Lagos, Osorno 5290000, Chile;
- Centro de Investigación en Fisiología del Ejercicio, Facultad de Ciencias, Universidad Mayor, Santiago 7500000, Chile
| | - José Afonso
- Centre for Research, Education, Innovation and Intervention in Sport, Faculty of Sport of the University of Porto, 4200-450 Porto, Portugal;
| | - Hugo Sarmento
- Research Unit for Sport and Physical Activity, Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, 3004-531 Coimbra, Portugal;
| | - Thomas Rosemann
- Institute of Primary Care, University of Zurich, 8091 Zurich, Switzerland;
| | - Beat Knechtle
- Institute of Primary Care, University of Zurich, 8091 Zurich, Switzerland;
- Medbase St. Gallen Am Vadianplatz, 9001 St. Gallen, Switzerland
- Correspondence: (F.M.C.); (B.K.)
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Clemente FM, Ramirez-Campillo R, Afonso J, Sarmento H. Effects of Small-Sided Games vs. Running-Based High-Intensity Interval Training on Physical Performance in Soccer Players: A Meta-Analytical Comparison. Front Physiol 2021; 12:642703. [PMID: 33732171 PMCID: PMC7957011 DOI: 10.3389/fphys.2021.642703] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/10/2021] [Indexed: 01/14/2023] Open
Abstract
Objectives: This systematic review with meta-analysis (SRMA) was conducted to compare the effects of SSG-based interventions vs. running-based HIIT interventions on soccer players' sprinting time (ST), vertical height jump (VJH), and change of direction time (CODt). Data Sources: The data sources utilized were Web of Science, Scopus, SPORTDiscus, and PubMed. Results: An electronic search yielded 650 articles, six of which were included in the present study. Between-group analysis found a significant favoring effect of HIIT-based over SSG-based training interventions for the improvement of linear sprinting time (ES = 0.42; p = 0.012). A within-group analysis revealed a significant favoring effect of HIIT-based training interventions for improving linear sprinting time (ES = 0.42; p = 0.008) and CODt (ES = 1.04; p = 0.005) despite a non-significant effect on VJH (ES = 0.47; p = 0.22). Conclusions: The meta-analytical comparison revealed favoring the effect of running-based HIIT over SSG-based interventions in sprinting performance, although no significant differences were observed for jumping and CODt performance. The findings suggest that SSG-based programs should be supplemented by other training methods that benefit determinant capacities in soccer players.
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Affiliation(s)
- Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana Do Castelo, Rua Escola Industrial e Comercial de Nun'Álvares, Viana Do Castelo, Portugal
- Instituto de Telecomunicações, Delegação da Covilhã, Lisbon, Portugal
| | - Rodrigo Ramirez-Campillo
- Human Performance Laboratory, Quality of Life and Wellness Research Group, Department of Physical Activity Sciences, Universidad de Los Lagos, Lord Cochrane, Osorno, Chile
- Centro de Investigación en Fisiología del Ejercicio, Facultad de Ciencias, Universidad Mayor, Santiago, Chile
| | - José Afonso
- Centre for Research, Education, Innovation and Intervention in Sport, Faculty of Sport of the University of Porto, Porto, Portugal
| | - Hugo Sarmento
- Research Unit for Sport and Physical Activity (CIDAF), Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal
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