{"id":{"repo_id":"ubc","oai_identifier":"oai:circle.library.ubc.ca:2429/1433"},"canonical_url":"https://search.dev.ndltd.org/etd/ubc/oai:circle.library.ubc.ca:2429/1433","repository":{"repo_id":"ubc","name":"University of British Columbia","base_url":"http://circle.library.ubc.ca/oai/request"},"display":{"title":"A metabolic comparison of isokinetic and free sprinting","abstract":"The purpose of this study was to examine the Excess Post-Exercise Oxygen Consumption (EPOC) and peak blood lactate responses of sprinters following exhaustive treadmill running, maximal isokinetic and free sprinting. Eight university sprinters (mean: age = 24.8 yrs., ht. = 178.9 cm., wt. = 74.9 kg.) performed a 2 minute anaerobic speed test (AST) and tethered isokinetic and free sprinting protocols consisting of five second maximal repetitions separated by ten second active recoveries. A five repetition isokinetic set was compared to five and ten repetition free sprint sets. A correlation (r = +0.87) was calculated between the EPOC and peak blood lactate values over the four experimental protocols. Tukey's post hoc comparisons determined significantly different corrected EPOC (HSD = 2.04, α < 0.05) and peak blood lactate (HSD = 1.72, α < 0.05) cell means between the 2 minute AST (15.16 ± 2.59 Litres; 14.83 ± 1.21 mmol/L) and the other three protocols: the 5 repetition anaerobic power master (APM) (11.38 ± 2.72 Litres; 12.77 ± 1.97 mmol/L), the 10 repetition free sprint (9.88 ± 2.80 Litres; 11.25 ± 2.15 mmol/L) and the 5 repetition free sprint (9.09 ± 2.51 Litres; 9.83 ± 3.09 mmol/L). Additionally, significance was between the 5 repetition APM condition and the 5 repetition free sprint condition. These findings suggest that five, 5 second isokinetic sprinting repetitions require more work in less time and thereby produce a metabolic demand similar to ten, 5 second free sprinting repetitions.","abstract_html":"The purpose of this study was to examine the Excess Post-Exercise Oxygen Consumption (EPOC) and peak blood lactate responses of sprinters following exhaustive treadmill running, maximal isokinetic and free sprinting. Eight university sprinters (mean: age = 24.8 yrs., ht. = 178.9 cm., wt. = 74.9 kg.) performed a 2 minute anaerobic speed test (AST) and tethered isokinetic and free sprinting protocols consisting of five second maximal repetitions separated by ten second active recoveries. A five repetition isokinetic set was compared to five and ten repetition free sprint sets. A correlation (r = +0.87) was calculated between the EPOC and peak blood lactate values over the four experimental protocols. Tukey&#x27;s post hoc comparisons determined significantly different corrected EPOC (HSD = 2.04, α &lt; 0.05) and peak blood lactate (HSD = 1.72, α &lt; 0.05) cell means between the 2 minute AST (15.16 ± 2.59 Litres; 14.83 ± 1.21 mmol/L) and the other three protocols: the 5 repetition anaerobic power master (APM) (11.38 ± 2.72 Litres; 12.77 ± 1.97 mmol/L), the 10 repetition free sprint (9.88 ± 2.80 Litres; 11.25 ± 2.15 mmol/L) and the 5 repetition free sprint (9.09 ± 2.51 Litres; 9.83 ± 3.09 mmol/L). Additionally, significance was between the 5 repetition APM condition and the 5 repetition free sprint condition. These findings suggest that five, 5 second isokinetic sprinting repetitions require more work in less time and thereby produce a metabolic demand similar to ten, 5 second free sprinting repetitions.","abstract_has_math":false,"creators":["Roberts, Gregory Alan"],"institution":"University of British Columbia","degree_name":"Master of Science - MSc","degree_level":"master's","degree_discipline":"Human Kinetics","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1993,"date_issued":"1993","date_published":"1993","updated_at":"2026-07-24T05:07:26Z","subjects":[],"languages":["eng"],"rights":["For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2429/1433","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Roberts, Gregory Alan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1993"]},{"key":"dc:publisher","label":"Institution","values":["University of British Columbia"]},{"key":"dc:type","label":"Dc Type","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Human Kinetics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["master's"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science - MSc"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of British Columbia"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["For non-commercial purposes only, such as research, private study and education. 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A five repetition isokinetic set was compared to five and ten repetition free sprint sets. A correlation (r = +0.87) was calculated between the EPOC and peak blood lactate values over the four experimental protocols. Tukey's post hoc comparisons determined significantly different corrected EPOC (HSD = 2.04, α < 0.05) and peak blood lactate (HSD = 1.72, α < 0.05) cell means between the 2 minute AST (15.16 ± 2.59 Litres; 14.83 ± 1.21 mmol/L) and the other three protocols: the 5 repetition anaerobic power master (APM) (11.38 ± 2.72 Litres; 12.77 ± 1.97 mmol/L), the 10 repetition free sprint (9.88 ± 2.80 Litres; 11.25 ± 2.15 mmol/L) and the 5 repetition free sprint (9.09 ± 2.51 Litres; 9.83 ± 3.09 mmol/L). Additionally, significance was between the 5 repetition APM condition and the 5 repetition free sprint condition. These findings suggest that five, 5 second isokinetic sprinting repetitions require more work in less time and thereby produce a metabolic demand similar to ten, 5 second free sprinting repetitions."]},{"key":"dc:format","label":"Dc Format","values":["2744670","application/pdf"]},{"key":"dc:title","label":"Title","values":["A metabolic comparison of isokinetic and free sprinting"]}]}],"canonical_facts":{"dc:creator":["Roberts, Gregory Alan"],"dc:date":["1993"],"dc:description":["The purpose of this study was to examine the Excess Post-Exercise Oxygen Consumption (EPOC) and peak blood lactate responses of sprinters following exhaustive treadmill running, maximal isokinetic and free sprinting. Eight university sprinters (mean: age = 24.8 yrs., ht. = 178.9 cm., wt. = 74.9 kg.) performed a 2 minute anaerobic speed test (AST) and tethered isokinetic and free sprinting protocols consisting of five second maximal repetitions separated by ten second active recoveries. A five repetition isokinetic set was compared to five and ten repetition free sprint sets. A correlation (r = +0.87) was calculated between the EPOC and peak blood lactate values over the four experimental protocols. Tukey's post hoc comparisons determined significantly different corrected EPOC (HSD = 2.04, α < 0.05) and peak blood lactate (HSD = 1.72, α < 0.05) cell means between the 2 minute AST (15.16 ± 2.59 Litres; 14.83 ± 1.21 mmol/L) and the other three protocols: the 5 repetition anaerobic power master (APM) (11.38 ± 2.72 Litres; 12.77 ± 1.97 mmol/L), the 10 repetition free sprint (9.88 ± 2.80 Litres; 11.25 ± 2.15 mmol/L) and the 5 repetition free sprint (9.09 ± 2.51 Litres; 9.83 ± 3.09 mmol/L). Additionally, significance was between the 5 repetition APM condition and the 5 repetition free sprint condition. These findings suggest that five, 5 second isokinetic sprinting repetitions require more work in less time and thereby produce a metabolic demand similar to ten, 5 second free sprinting repetitions."],"dc:format":["2744670","application/pdf"],"dc:identifier":["http://hdl.handle.net/2429/1433","http://circle.library.ubc.ca/bitstream/2429/1433/1/ubc_1993_fall_roberts_gregory.pdf"],"dc:language":["eng"],"dc:publisher":["University of British Columbia"],"dc:rights":["For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use."],"dc:title":["A metabolic comparison of isokinetic and free sprinting"],"dc:type":["Text"],"thesis:degree_discipline":["Human Kinetics"],"thesis:degree_level":["master's"],"thesis:degree_name":["Master of Science - MSc"],"thesis:institution_name":["University of British Columbia"]},"updated_at":"2026-07-24T05:07:26Z"}