The effect of lower limb occlusion on recovery following sprint exercise in academy rugby players

N. Williams, M. Russell, C. J. Cook, L. P. Kilduff

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Objectives: The effects of vascular occlusion on recovery of physiological and neuromuscular markers over 24 h, and hormonal reactivity to subsequent exercise were investigated. Design: Counterbalanced, randomised, crossover. Methods: Academy rugby players (n = 24) completed six 50-m sprints (5-min inter-set recovery) before occlusion cuff application (thighs) and intermittent inflation to 171–266 mmHg (Recovery) or 15 mmHg (Con) for 12-min (two sets, 3-min repetitions, 3-min non-occluded reperfusion). Countermovement jumps, blood (lactate, creatine kinase), saliva (testosterone, cortisol), and perceptual (soreness, recovery) responses were measured before (baseline) and after (post, +2 h, +24 h) sprinting. Saliva was sampled after a 30-min resistance exercise session performed 24 h after sprinting. Results: Although sprinting (total: 40.0 ± 2.8 s, p = 0.238; average: 6.7 ± 0.5 s, p = 0.674) influenced creatine kinase (p < 0.001, +457.1 ± 327.3 μL−1, at 24 h), lactate (p < 0.001, 6.8 ± 2.3 mmol L−1, post), testosterone (p < 0.001, −55.9 ± 63.2 pg mL−1, at 2 h) and cortisol (p < 0.001, −0.3 ± 0.3 μg dL−1, at 2 h) concentrations, countermovement jump power output (p < 0.001, −409.6 ± 310.1 W; −5.4 ± 3.4 cm, post), perceived recovery (p < 0.001, −3.0 ± 2.3, post), and muscle soreness (p < 0.001; 1.5 ± 1.1, at 24 h), vascular occlusion had no effect (all p > 0.05) on recovery. In response to subsequent exercise performed 24 h after vascular occlusion, testosterone increased pre-to-post-exercise (Recovery: p = 0.031, 21.6 ± 44.9 pg mL−1; Con: p = 0.178, 10.6 ± 36.6 pg mL−1) however Δtestosterone was not significantly different (p = 0.109) between conditions. Conclusions: Vascular occlusion had no effect on physiological or neuromuscular markers 2 h or 24 h after sprinting or in response to a physical stress test.

Original languageEnglish
Pages (from-to)1095-1099
Number of pages5
JournalJournal of Science and Medicine in Sport
Volume21
DOIs
Publication statusPublished - 2018

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Football
Blood Vessels
Testosterone
Lower Extremity
Creatine Kinase
Saliva
Economic Inflation
Thigh
Exercise Test
Reperfusion
Hydrocortisone
Lactic Acid

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Williams, N. ; Russell, M. ; Cook, C. J. ; Kilduff, L. P. / The effect of lower limb occlusion on recovery following sprint exercise in academy rugby players. In: Journal of Science and Medicine in Sport. 2018 ; Vol. 21. pp. 1095-1099.
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title = "The effect of lower limb occlusion on recovery following sprint exercise in academy rugby players",
abstract = "Objectives: The effects of vascular occlusion on recovery of physiological and neuromuscular markers over 24 h, and hormonal reactivity to subsequent exercise were investigated. Design: Counterbalanced, randomised, crossover. Methods: Academy rugby players (n = 24) completed six 50-m sprints (5-min inter-set recovery) before occlusion cuff application (thighs) and intermittent inflation to 171–266 mmHg (Recovery) or 15 mmHg (Con) for 12-min (two sets, 3-min repetitions, 3-min non-occluded reperfusion). Countermovement jumps, blood (lactate, creatine kinase), saliva (testosterone, cortisol), and perceptual (soreness, recovery) responses were measured before (baseline) and after (post, +2 h, +24 h) sprinting. Saliva was sampled after a 30-min resistance exercise session performed 24 h after sprinting. Results: Although sprinting (total: 40.0 ± 2.8 s, p = 0.238; average: 6.7 ± 0.5 s, p = 0.674) influenced creatine kinase (p < 0.001, +457.1 ± 327.3 μL−1, at 24 h), lactate (p < 0.001, 6.8 ± 2.3 mmol L−1, post), testosterone (p < 0.001, −55.9 ± 63.2 pg mL−1, at 2 h) and cortisol (p < 0.001, −0.3 ± 0.3 μg dL−1, at 2 h) concentrations, countermovement jump power output (p < 0.001, −409.6 ± 310.1 W; −5.4 ± 3.4 cm, post), perceived recovery (p < 0.001, −3.0 ± 2.3, post), and muscle soreness (p < 0.001; 1.5 ± 1.1, at 24 h), vascular occlusion had no effect (all p > 0.05) on recovery. In response to subsequent exercise performed 24 h after vascular occlusion, testosterone increased pre-to-post-exercise (Recovery: p = 0.031, 21.6 ± 44.9 pg mL−1; Con: p = 0.178, 10.6 ± 36.6 pg mL−1) however Δtestosterone was not significantly different (p = 0.109) between conditions. Conclusions: Vascular occlusion had no effect on physiological or neuromuscular markers 2 h or 24 h after sprinting or in response to a physical stress test.",
keywords = "Hormonal reactivity, Occlusion, Sprint",
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The effect of lower limb occlusion on recovery following sprint exercise in academy rugby players. / Williams, N.; Russell, M.; Cook, C. J.; Kilduff, L. P.

In: Journal of Science and Medicine in Sport, Vol. 21, 2018, p. 1095-1099.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The effect of lower limb occlusion on recovery following sprint exercise in academy rugby players

AU - Williams, N.

AU - Russell, M.

AU - Cook, C. J.

AU - Kilduff, L. P.

PY - 2018

Y1 - 2018

N2 - Objectives: The effects of vascular occlusion on recovery of physiological and neuromuscular markers over 24 h, and hormonal reactivity to subsequent exercise were investigated. Design: Counterbalanced, randomised, crossover. Methods: Academy rugby players (n = 24) completed six 50-m sprints (5-min inter-set recovery) before occlusion cuff application (thighs) and intermittent inflation to 171–266 mmHg (Recovery) or 15 mmHg (Con) for 12-min (two sets, 3-min repetitions, 3-min non-occluded reperfusion). Countermovement jumps, blood (lactate, creatine kinase), saliva (testosterone, cortisol), and perceptual (soreness, recovery) responses were measured before (baseline) and after (post, +2 h, +24 h) sprinting. Saliva was sampled after a 30-min resistance exercise session performed 24 h after sprinting. Results: Although sprinting (total: 40.0 ± 2.8 s, p = 0.238; average: 6.7 ± 0.5 s, p = 0.674) influenced creatine kinase (p < 0.001, +457.1 ± 327.3 μL−1, at 24 h), lactate (p < 0.001, 6.8 ± 2.3 mmol L−1, post), testosterone (p < 0.001, −55.9 ± 63.2 pg mL−1, at 2 h) and cortisol (p < 0.001, −0.3 ± 0.3 μg dL−1, at 2 h) concentrations, countermovement jump power output (p < 0.001, −409.6 ± 310.1 W; −5.4 ± 3.4 cm, post), perceived recovery (p < 0.001, −3.0 ± 2.3, post), and muscle soreness (p < 0.001; 1.5 ± 1.1, at 24 h), vascular occlusion had no effect (all p > 0.05) on recovery. In response to subsequent exercise performed 24 h after vascular occlusion, testosterone increased pre-to-post-exercise (Recovery: p = 0.031, 21.6 ± 44.9 pg mL−1; Con: p = 0.178, 10.6 ± 36.6 pg mL−1) however Δtestosterone was not significantly different (p = 0.109) between conditions. Conclusions: Vascular occlusion had no effect on physiological or neuromuscular markers 2 h or 24 h after sprinting or in response to a physical stress test.

AB - Objectives: The effects of vascular occlusion on recovery of physiological and neuromuscular markers over 24 h, and hormonal reactivity to subsequent exercise were investigated. Design: Counterbalanced, randomised, crossover. Methods: Academy rugby players (n = 24) completed six 50-m sprints (5-min inter-set recovery) before occlusion cuff application (thighs) and intermittent inflation to 171–266 mmHg (Recovery) or 15 mmHg (Con) for 12-min (two sets, 3-min repetitions, 3-min non-occluded reperfusion). Countermovement jumps, blood (lactate, creatine kinase), saliva (testosterone, cortisol), and perceptual (soreness, recovery) responses were measured before (baseline) and after (post, +2 h, +24 h) sprinting. Saliva was sampled after a 30-min resistance exercise session performed 24 h after sprinting. Results: Although sprinting (total: 40.0 ± 2.8 s, p = 0.238; average: 6.7 ± 0.5 s, p = 0.674) influenced creatine kinase (p < 0.001, +457.1 ± 327.3 μL−1, at 24 h), lactate (p < 0.001, 6.8 ± 2.3 mmol L−1, post), testosterone (p < 0.001, −55.9 ± 63.2 pg mL−1, at 2 h) and cortisol (p < 0.001, −0.3 ± 0.3 μg dL−1, at 2 h) concentrations, countermovement jump power output (p < 0.001, −409.6 ± 310.1 W; −5.4 ± 3.4 cm, post), perceived recovery (p < 0.001, −3.0 ± 2.3, post), and muscle soreness (p < 0.001; 1.5 ± 1.1, at 24 h), vascular occlusion had no effect (all p > 0.05) on recovery. In response to subsequent exercise performed 24 h after vascular occlusion, testosterone increased pre-to-post-exercise (Recovery: p = 0.031, 21.6 ± 44.9 pg mL−1; Con: p = 0.178, 10.6 ± 36.6 pg mL−1) however Δtestosterone was not significantly different (p = 0.109) between conditions. Conclusions: Vascular occlusion had no effect on physiological or neuromuscular markers 2 h or 24 h after sprinting or in response to a physical stress test.

KW - Hormonal reactivity

KW - Occlusion

KW - Sprint

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JF - Australian Journal of Science and Medicine in Sport

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