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  • 1
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2016
    In:  Medicine & Science in Sports & Exercise Vol. 48 ( 2016-05), p. 806-
    In: Medicine & Science in Sports & Exercise, Ovid Technologies (Wolters Kluwer Health), Vol. 48 ( 2016-05), p. 806-
    Type of Medium: Online Resource
    ISSN: 0195-9131
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2016
    detail.hit.zdb_id: 2031167-9
    SSG: 31
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  • 2
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2011
    In:  Medicine & Science in Sports & Exercise Vol. 43, No. 5 ( 2011-05), p. 868-
    In: Medicine & Science in Sports & Exercise, Ovid Technologies (Wolters Kluwer Health), Vol. 43, No. 5 ( 2011-05), p. 868-
    Type of Medium: Online Resource
    ISSN: 0195-9131
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2011
    detail.hit.zdb_id: 2031167-9
    SSG: 31
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  • 3
    Online Resource
    Online Resource
    Informa UK Limited ; 2017
    In:  Research Quarterly for Exercise and Sport Vol. 88, No. 1 ( 2017-01-02), p. 114-119
    In: Research Quarterly for Exercise and Sport, Informa UK Limited, Vol. 88, No. 1 ( 2017-01-02), p. 114-119
    Type of Medium: Online Resource
    ISSN: 0270-1367 , 2168-3824
    Language: English
    Publisher: Informa UK Limited
    Publication Date: 2017
    detail.hit.zdb_id: 2068118-5
    SSG: 5,2
    SSG: 31
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  • 4
    In: International Journal of Sports Physiology and Performance, Human Kinetics, Vol. 14, No. 1 ( 2019-01-1), p. 46-54
    Abstract: Purpose : To compare repetition maximum (RM) to relative intensity using sets and repetitions (RI SR ) resistance training on measures of training load, vertical jump, and force production in well-trained lifters. Methods : Fifteen well-trained (isometric peak force = 4403.61 [664.69] N, mean [SD] ) males underwent resistance training 3 d/wk for 10 wk in either an RM group (n = 8) or RI SR group (n = 7). Weeks 8 to 10 consisted of a tapering period for both groups. The RM group achieved a relative maximum each day, whereas the RI SR group trained based on percentages. Testing at 5 time points included unweighted ( 〈 1 kg) and 20-kg squat jumps, countermovement jumps, and isometric midthigh pulls. Mixed-design analyses of variance and effect size using Hedge’s g were used to assess within- and between-groups alterations. Results : Moderate between-groups effect sizes were observed for all squat-jump and countermovement-jump conditions supporting the RI SR group ( g  = 0.76–1.07). A small between-groups effect size supported RI SR for allometrically scaled isometric peak force ( g  = 0.20). Large and moderate between-groups effect sizes supported RI SR for rate of force development from 0 to 50 ms ( g  = 1.25) and 0 to 100 ms ( g  = 0.89). Weekly volume load displacement was not different between groups ( P   〉  .05); however, training strain was statistically greater in the RM group ( P   〈  .05). Conclusions : Overall, this study demonstrated that RI SR training yielded greater improvements in vertical jump, rate of force development, and maximal strength compared with RM training, which may be explained partly by differences in the imposed training stress and the use of failure/nonfailure training in a well-trained population.
    Type of Medium: Online Resource
    ISSN: 1555-0265 , 1555-0273
    Language: Unknown
    Publisher: Human Kinetics
    Publication Date: 2019
    SSG: 31
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  • 5
    In: Sports, MDPI AG, Vol. 8, No. 9 ( 2020-09-09), p. 125-
    Abstract: Prior to major competitions, athletes often use a peaking protocol such as tapering or training cessation to improve performance. The majority of the current literature has focused on endurance-based sports such as swimming, cycling, and running to better understand how and when to taper or use training cessation to achieve the desired performance outcome. However, evidence regarding peaking protocols for strength and power athletes is lacking. Current limitations for peaking maximal strength is that many studies do not provide sufficient details for practitioners to use. Thus, when working with athletes such as powerlifters, weightlifters, throwers, and strongman competitors, practitioners must use trial and error to determine the best means for peaking rather than using an evidence-based protocol. More specifically, determining how to peak maximal strength using data derived from strength and power athletes has not been established. While powerlifting training (i.e., back squat, bench press, deadlift) is used by strength and power athletes up until the final days prior to a competition, understanding how to peak maximal strength relative to powerlifting performance is still unclear. Thus, the purpose of this study was to review the literature on tapering and training cessation practices relative to peaking powerlifting performance.
    Type of Medium: Online Resource
    ISSN: 2075-4663
    Language: English
    Publisher: MDPI AG
    Publication Date: 2020
    detail.hit.zdb_id: 2704239-X
    SSG: 31
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  • 6
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2018
    In:  Journal of Strength and Conditioning Research Vol. 32, No. 4 ( 2018-04), p. 1020-1028
    In: Journal of Strength and Conditioning Research, Ovid Technologies (Wolters Kluwer Health), Vol. 32, No. 4 ( 2018-04), p. 1020-1028
    Abstract: Bazyler, CD, Mizuguchi, S, Sole, CJ, Suchomel, TJ, Sato, K, Kavanaugh, AA, DeWeese, BH, and Stone, MH. Jumping performance is preserved but not muscle thickness in collegiate volleyball players after a taper. J Strength Cond Res 32(4): 1020–1028, 2018—The purpose of this study was to examine changes in muscle architecture and jumping performance in NCAA division I women's volleyball players throughout a competitive season and in preparation for conference championships. Ten women volleyball players were tested at preseason (T 1 ), pretaper (T 2 ), and post-taper (T 3 ) on measures of vastus lateralis muscle thickness (MT), pennation angle (PA) and fascicle length (FL) using ultrasonography, and unloaded and loaded squat jump height (SJH) and peak power allometrically scaled to body mass (SJPPa) on a force platform. Rating of perceived exertion training load and strength training volume load were monitored weekly. Player's MT ( p 〈 0.001, Glass's Δ = 2.8) and PA increased ( p = 0.02, Δ = 3.9) after in-season training. However, MT decreased after the taper ( p = 0.01, Δ = 0.6) but remained elevated above preseason values ( p 〈 0.001, Δ = 1.7). There were no statistical changes in FL, SJH, or SJPPa. Large-to-very large negative relationships ( r = −0.51 to −0.81) were observed between preseason relative maximal strength and changes in SJH and SJPPa with various loads over the season. These findings demonstrate that relatively low volumes of strength training and concurrent sport training during a tapering period are capable of preserving jumping performance, but not MT in women's volleyball players; however, jumping performance changes seem to be related to the player's strength level. Stronger players may benefit from an overreaching microcycle before the taper to preserve previously accrued muscular adaptations and jumping performance.
    Type of Medium: Online Resource
    ISSN: 1064-8011
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2018
    detail.hit.zdb_id: 2142889-X
    SSG: 31
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  • 7
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2020
    In:  Journal of Strength and Conditioning Research Vol. 34, No. 7 ( 2020-07), p. 1842-1850
    In: Journal of Strength and Conditioning Research, Ovid Technologies (Wolters Kluwer Health), Vol. 34, No. 7 ( 2020-07), p. 1842-1850
    Abstract: Travis, SK, Mizuguchi, S, Stone, MH, Sands, WA, and Bazyler, CD. Preparing for a national weightlifting championship: A case series. J Strength Cond Res 34(7): 1842–1850, 2020—This study aimed to characterize psychological, physiological, and performance changes of a high-level female (24.5 years; 53.8 ± 0.3 kg; 155.4 cm) and male (25.8 years; 92.7 ± 1.2 kg; 189 cm) weightlifter over 28 weeks while preparing for a national championship. Body mass, hydration, psychological inventories, serum biomarkers, vastus lateralis muscle cross-sectional area (CSA), and squat jump (SJ) performance were assessed weekly beginning 11 weeks from the competition date. Weightlifting performance goals were met for the female athlete (actual total = 159 kg) but not for the male athlete (actual total = 292 kg). Reductions in vastus lateralis CSA possibly took place the week leading into competition for both athletes. Both athletes reported positive recovery-stress states on the day of competition relative to baseline values. Fluctuations between steroid hormone concentrations and inflammatory markers were unpredictable and inconsistent for both athletes throughout the training program. Unloaded SJ height and rate of force development were the highest on competition day for both athletes. Based on these findings, it is possible for high-level male and female weightlifters to achieve and maintain peak preparedness 3–4 days before competition following a 1-week overreach and 3-week exponential taper, where training volume-load is reduced by half and intensity maintained or slightly increased relative to pretaper values. Furthermore, the short recovery and stress scale and SJ testing seem to be useful tools for sport scientists and coaches when monitoring high-level weightlifters preparing for competition.
    Type of Medium: Online Resource
    ISSN: 1064-8011
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
    detail.hit.zdb_id: 2142889-X
    SSG: 31
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  • 8
    Online Resource
    Online Resource
    Ovid Technologies (Wolters Kluwer Health) ; 2022
    In:  Journal of Strength and Conditioning Research Vol. 36, No. 3 ( 2022-03), p. 633-640
    In: Journal of Strength and Conditioning Research, Ovid Technologies (Wolters Kluwer Health), Vol. 36, No. 3 ( 2022-03), p. 633-640
    Abstract: Travis, SK, Mujika, I, Zwetsloot, KA, Gentles, JA, Stone, MH, and Bazyler, CD. The effects of 3 vs. 5 days of training cessation on maximal strength. J Strength Cond Res 36(3): 633–640, 2022—The purpose of this study was to compare the effects of 3 vs. 5 days of training cessation on body composition, perceived recovery and stress state, and maximal strength. Nineteen strength-trained athletes (23.8 ± 4.1 year; 90.8 ± 20.7 kg; 174.2 ± 7.3 cm) completed a powerlifting specific 4-week training block followed by either 3 or 5 days of training cessation. During the 4-week training block, athletes were trained 3 days per week, performing 3–4 movements that included at least 2–3 competition lifts per session while performing 4–5 sets of 3–5 repetitions with intensity ranging from 75 to 100% 1 repetition maximum (1RM). Body composition, psychometric measures, upper-body maximal strength, and lower-body maximal strength were assessed before (T1) and after 4 weeks of training (T2) and at 3 or 5 days of training cessation (T3). The alpha level was set at p 〈 0.05. After the 4-week training block (T1 to T2), trivial significant increases in body mass ( p = 0.016, Hedge's g = 0.04) and bench press 1RM ( p = 0.01, g = 0.16) were observed, as well as small significant increases in back squat 1RM ( p 〈 0.001, g = 0.23), deadlift 1RM ( p = 0.003, g = 0.20), powerlifting total ( p 〈 0.001, g = 0.21), and Wilks Score ( p 〈 0.001, g = 0.27). There were no significant differences between groups for isometric back squat performance, psychometric measures, and body composition after training cessation (T2–T3). However, small significant decreases in isometric bench press performance were observed after 5 days ( p 〈 0.001, g = 0.16), but not 3 days of training cessation. The results of this study suggest maximal lower-body strength can be preserved during 3 and 5 days of training cessation, but maximal upper-body strength is only preserved for 3 days after 4 weeks of strength training in athletes.
    Type of Medium: Online Resource
    ISSN: 1064-8011
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2022
    detail.hit.zdb_id: 2142889-X
    SSG: 31
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  • 9
    In: Nutrients, MDPI AG, Vol. 13, No. 8 ( 2021-07-22), p. 2496-
    Abstract: Caffeine is often used in a variety of forms to enhance athletic performance; however, research regarding caffeine’s effects on strength and power in female athletes is lacking. Therefore, the purpose of this study was to analyze the acute effects of caffeine anhydrous (6 mg/kg of body mass) on jumping performance and maximal strength in female collegiate athletes. Eleven athletes (19.7 ± 0.9 yrs; 166.4 ± 10.2 cm, 67.7 ± 9.4 kg) performed two testing sessions separated by one week, and randomly received caffeine or placebo using a double-blind approach. Heart rate, blood pressure, and tympanic temperature were recorded before athletes received each condition, following 60 min of quiet sitting, and directly after performance testing. Athletes were assessed on unweighted and weighted squat jump height (SJH0, SJH20) and countermovement jump height (CMJH0, CMJH20), isometric mid-thigh pull peak force (IPF), and rate of force development from 0–200 ms (RFD200). Resting systolic blood pressure was significantly greater following caffeine administration compared to a placebo (p = 0.017). There were small, significant differences in SJH0 (p = 0.035, g = 0.35), SJH20 (p = 0.002, g = 0.49), CMJH0 (p = 0.015, g = 0.19), and CMJH20 (p 〈 0.001, g = 0.37) in favor of caffeine over placebo. However, there was no significant difference in IPF (p = 0.369, g = 0.12) and RFD200 (p = 0.235, g = 0.32) between conditions. Therefore, caffeine appears to enhance jumping performance, but not maximal strength in female collegiate athletes.
    Type of Medium: Online Resource
    ISSN: 2072-6643
    Language: English
    Publisher: MDPI AG
    Publication Date: 2021
    detail.hit.zdb_id: 2518386-2
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  • 10
    Online Resource
    Online Resource
    Frontiers Media SA ; 2021
    In:  Frontiers in Physiology Vol. 12 ( 2021-10-21)
    In: Frontiers in Physiology, Frontiers Media SA, Vol. 12 ( 2021-10-21)
    Abstract: Before major athletic events, a taper is often prescribed to facilitate recovery and enhance performance. However, it is unknown which taper model is most effective for peaking maximal strength and positively augmenting skeletal muscle. Thus, the purpose of this study was to compare performance outcomes and skeletal muscle adaptations following a step vs. an exponential taper in strength athletes. Sixteen powerlifters (24.0 ± 4.0 years, 174.4 ± 8.2 cm, 89.8 ± 21.4 kg) participated in a 6-week training program aimed at peaking maximal strength on back squat [initial 1-repetition-maximum (1RM): 174.7 ± 33.4 kg], bench press (118.5 ± 29.9 kg), and deadlift (189.9 ± 41.2 kg). Powerlifters were matched based on relative maximal strength, and randomly assigned to either (a) 1-week overreach and 1-week step taper or (b) 1-week overreach and 3-week exponential taper. Athletes were tested pre- and post-training on measures of body composition, jumping performance, isometric squat, and 1RM. Whole muscle size was assessed at the proximal, middle, and distal vastus lateralis using ultrasonography and microbiopsies at the middle vastus lateralis site. Muscle samples ( n = 15) were analyzed for fiber size, fiber type [myosin-heavy chain (MHC)-I, -IIA, -IIX, hybrid-I/IIA] using whole muscle immunohistochemistry and single fiber dot blots, gene expression, and microRNA abundance. There were significant main time effects for 1RM squat ( p & lt; 0.001), bench press ( p & lt; 0.001), and deadlift, ( p = 0.024), powerlifting total ( p & lt; 0.001), Wilks Score ( p & lt; 0.001), squat jump peak-power scaled to body mass ( p = 0.001), body mass ( p = 0.005), fat mass ( p = 0.002), and fat mass index ( p = 0.002). There were significant main time effects for medial whole muscle cross-sectional area (mCSA) ( p = 0.006) and averaged sites ( p & lt; 0.001). There was also a significant interaction for MHC-IIA fiber cross-sectional area (fCSA) ( p = 0.014) with post hoc comparisons revealing increases following the step-taper only ( p = 0.002). There were significant main time effects for single-fiber MHC-I% ( p = 0.015) and MHC-IIA% ( p = 0.033), as well as for MyoD ( p = 0.002), MyoG ( p = 0.037), and miR-499a ( p = 0.033). Overall, increases in whole mCSA, fCSA, MHC-IIA fCSA, and MHC transitions appeared to favor the step taper group. An overreach followed by a step taper appears to produce a myocellular environment that enhances skeletal muscle adaptations, whereas an exponential taper may favor neuromuscular performance.
    Type of Medium: Online Resource
    ISSN: 1664-042X
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2564217-0
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