The metabolic, hormonal, biochemical, and neuromuscular function responses to a backward sled drag training session

D.J. West, D.J. Cunningham, C.V. Finn, P.M. Scott, Blair T Crewther, C.J. Cook, Liam P Kilduff

    Research output: Contribution to journalArticle

    8 Citations (Scopus)

    Abstract

    We examined the metabolic, hormonal, biochemical, and neuromuscular function (NMF) responses to a backward sled drag training session (STS) in strength-trained men (n = 11). After baseline collection of saliva (testosterone and cortisol), whole blood (lactate and creatine kinase [CK]), and countermovement jumps (peak power output), participants completed 5 sets of 2 ×20-m (30 second-recovery between drags and 120 second-recovery between sets) maximal backward sled drags (loaded with 75% body mass). Participants were retested immediately, 15 minutes, 1, 3, and 24 hours after STS. Peak power output decreased after STS (baseline, 4,445 ±705 vs. 0 minute, 3,464 ±819 W; p = 0.001) and remained below baseline until recovering at both the 3-and 24-hour time points. No changes in CK levels were seen at any time point after STS. Blood lactate increased immediately after STS (baseline, 1.7 ±0.5 vs. 0 minute, 12.4 ±2.6 mmolL-1; p = 0.001) and remained elevated at 60 minutes (3.8 ±1.9 mmolL-1; p = 0.004) before returning to baseline at 3 and 24 hours. Testosterone peaked at 15 minutes post (baseline, 158 ±45 vs. 15 minutes, 217 ±49 pg ml -1; p <0.001) before decreasing below baseline at the 3-hour time point (119 ±34 pg ml-1; p = 0.008), but then increased again above baseline at 24 hours (187 ±56 pg ml-1; p = 0.04). Cortisol tended to increase at 15 minutes (baseline, 3.4 6 1.8 vs. 15 minutes, 5.2 ±2.7 ng ml-1; p = 0.07) before declining below baseline at 3 hours (1.64 ±0.93 ng ml-1; p = 0.012) and returning to baseline concentrations at 24 hours. In conclusion, sled dragging provides an effective metabolic stimulus, with NMF restored after #3 hours of recovery. Characterizing the recovery time course after sled training may aid in athlete training program design. © 2013 National Strength and Conditioning Association.
    Original languageEnglish
    Pages (from-to)265-272
    Number of pages8
    JournalJournal of Strength and Conditioning Research
    Volume28
    Issue number1
    DOIs
    Publication statusPublished - 2014

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    Creatine Kinase
    Hydrocortisone
    Testosterone
    Lactic Acid
    Saliva
    Athletes
    Education

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    West, D.J. ; Cunningham, D.J. ; Finn, C.V. ; Scott, P.M. ; Crewther, Blair T ; Cook, C.J. ; Kilduff, Liam P. / The metabolic, hormonal, biochemical, and neuromuscular function responses to a backward sled drag training session. In: Journal of Strength and Conditioning Research. 2014 ; Vol. 28, No. 1. pp. 265-272.
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    The metabolic, hormonal, biochemical, and neuromuscular function responses to a backward sled drag training session. / West, D.J.; Cunningham, D.J.; Finn, C.V.; Scott, P.M.; Crewther, Blair T; Cook, C.J.; Kilduff, Liam P.

    In: Journal of Strength and Conditioning Research, Vol. 28, No. 1, 2014, p. 265-272.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - The metabolic, hormonal, biochemical, and neuromuscular function responses to a backward sled drag training session

    AU - West, D.J.

    AU - Cunningham, D.J.

    AU - Finn, C.V.

    AU - Scott, P.M.

    AU - Crewther, Blair T

    AU - Cook, C.J.

    AU - Kilduff, Liam P

    N1 - Cited By :5 Export Date: 25 May 2017

    PY - 2014

    Y1 - 2014

    N2 - We examined the metabolic, hormonal, biochemical, and neuromuscular function (NMF) responses to a backward sled drag training session (STS) in strength-trained men (n = 11). After baseline collection of saliva (testosterone and cortisol), whole blood (lactate and creatine kinase [CK]), and countermovement jumps (peak power output), participants completed 5 sets of 2 ×20-m (30 second-recovery between drags and 120 second-recovery between sets) maximal backward sled drags (loaded with 75% body mass). Participants were retested immediately, 15 minutes, 1, 3, and 24 hours after STS. Peak power output decreased after STS (baseline, 4,445 ±705 vs. 0 minute, 3,464 ±819 W; p = 0.001) and remained below baseline until recovering at both the 3-and 24-hour time points. No changes in CK levels were seen at any time point after STS. Blood lactate increased immediately after STS (baseline, 1.7 ±0.5 vs. 0 minute, 12.4 ±2.6 mmolL-1; p = 0.001) and remained elevated at 60 minutes (3.8 ±1.9 mmolL-1; p = 0.004) before returning to baseline at 3 and 24 hours. Testosterone peaked at 15 minutes post (baseline, 158 ±45 vs. 15 minutes, 217 ±49 pg ml -1; p <0.001) before decreasing below baseline at the 3-hour time point (119 ±34 pg ml-1; p = 0.008), but then increased again above baseline at 24 hours (187 ±56 pg ml-1; p = 0.04). Cortisol tended to increase at 15 minutes (baseline, 3.4 6 1.8 vs. 15 minutes, 5.2 ±2.7 ng ml-1; p = 0.07) before declining below baseline at 3 hours (1.64 ±0.93 ng ml-1; p = 0.012) and returning to baseline concentrations at 24 hours. In conclusion, sled dragging provides an effective metabolic stimulus, with NMF restored after #3 hours of recovery. Characterizing the recovery time course after sled training may aid in athlete training program design. © 2013 National Strength and Conditioning Association.

    AB - We examined the metabolic, hormonal, biochemical, and neuromuscular function (NMF) responses to a backward sled drag training session (STS) in strength-trained men (n = 11). After baseline collection of saliva (testosterone and cortisol), whole blood (lactate and creatine kinase [CK]), and countermovement jumps (peak power output), participants completed 5 sets of 2 ×20-m (30 second-recovery between drags and 120 second-recovery between sets) maximal backward sled drags (loaded with 75% body mass). Participants were retested immediately, 15 minutes, 1, 3, and 24 hours after STS. Peak power output decreased after STS (baseline, 4,445 ±705 vs. 0 minute, 3,464 ±819 W; p = 0.001) and remained below baseline until recovering at both the 3-and 24-hour time points. No changes in CK levels were seen at any time point after STS. Blood lactate increased immediately after STS (baseline, 1.7 ±0.5 vs. 0 minute, 12.4 ±2.6 mmolL-1; p = 0.001) and remained elevated at 60 minutes (3.8 ±1.9 mmolL-1; p = 0.004) before returning to baseline at 3 and 24 hours. Testosterone peaked at 15 minutes post (baseline, 158 ±45 vs. 15 minutes, 217 ±49 pg ml -1; p <0.001) before decreasing below baseline at the 3-hour time point (119 ±34 pg ml-1; p = 0.008), but then increased again above baseline at 24 hours (187 ±56 pg ml-1; p = 0.04). Cortisol tended to increase at 15 minutes (baseline, 3.4 6 1.8 vs. 15 minutes, 5.2 ±2.7 ng ml-1; p = 0.07) before declining below baseline at 3 hours (1.64 ±0.93 ng ml-1; p = 0.012) and returning to baseline concentrations at 24 hours. In conclusion, sled dragging provides an effective metabolic stimulus, with NMF restored after #3 hours of recovery. Characterizing the recovery time course after sled training may aid in athlete training program design. © 2013 National Strength and Conditioning Association.

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    KW - Recovery

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