Transfer of strength training to running mechanics, energetics, and efficiency
To examine the effects of increased strength on mechanical work, the metabolic cost of transport (Cost), and mechanical efficiency (ME) during running. Fourteen physically active men (22.0 ± 2.0 years, 79.3 ± 11.1 kg) were randomized to a strength-training group (SG, n = 7), who participated in a ma...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Termedia Publishing House
2021-03-01
|
| Series: | Biology of Sport |
| Subjects: | |
| Online Access: | https://www.termedia.pl/Transfer-of-strength-training-to-running-mechanics-energetics-and-efficiency,78,43071,1,1.html |
| _version_ | 1797999770649755648 |
|---|---|
| author | Jorge L. Storniolo Gabriela Fischer Renata Bona Alexandre Pinho Alex P. Moorhead Marcus Tartaruga Paula Finatto Leonardo Peyré-Tartaruga |
| author_facet | Jorge L. Storniolo Gabriela Fischer Renata Bona Alexandre Pinho Alex P. Moorhead Marcus Tartaruga Paula Finatto Leonardo Peyré-Tartaruga |
| author_sort | Jorge L. Storniolo |
| collection | DOAJ |
| description | To examine the effects of increased strength on mechanical work, the metabolic cost of transport (Cost), and mechanical efficiency (ME) during running. Fourteen physically active men (22.0 ± 2.0 years, 79.3 ± 11.1 kg) were randomized to a strength-training group (SG, n = 7), who participated in a maximal strength training protocol lasting 8 weeks, and a control group (CG, n = 7), which did not perform any training intervention. Metabolic and kinematic data were collected simultaneously while running at a constant speed (2.78 m·s-1). The ME was defined as the ratio between mechanical power (Pmec) and metabolic power (Pmet). The repeated measures two-way ANOVA did not show any significant interaction between groups, despite some large effect sizes (d): internal work (Wint, p = 0.265, d = -1.37), external work (Wext, p = 0.888, d = 0.21), total work (Wtot, p = 0.931, d = -0.17), Pmec (p = 0.917, d = -0.17), step length (SL, p = 0.941, d = 0.24), step frequency (SF, p = 0.814, d = -0.18), contact time (CT, p = 0.120, d = -0.79), aerial time (AT, p = 0.266, d = 1.12), Pmet (p = 0.088, d = 0.85), and ME (p = 0.329, d = 0.54). The exception was a significant decrease in Cost (p = 0.047, d = 0.84) in SG. The paired t-test and Wilcoxon test only detected intragroup differences (pre- vs. post-training) for SG, showing a higher CT (p = 0.041), and a lower Cost (p = 0.003) and Pmet (p = 0.004). The results indicate that improved neuromuscular factors related to strength training may be responsible for the higher metabolic economy of running after 8 weeks of intervention. However, this process was unable to alter running mechanics in order to indicate a significant improvement in ME. |
| first_indexed | 2024-04-11T11:10:02Z |
| format | Article |
| id | doaj.art-ccbcfb520bef45c2a9475f0a4b78485f |
| institution | Directory Open Access Journal |
| issn | 0860-021X 2083-1862 |
| language | English |
| last_indexed | 2024-04-11T11:10:02Z |
| publishDate | 2021-03-01 |
| publisher | Termedia Publishing House |
| record_format | Article |
| series | Biology of Sport |
| spelling | doaj.art-ccbcfb520bef45c2a9475f0a4b78485f2022-12-22T04:27:38ZengTermedia Publishing HouseBiology of Sport0860-021X2083-18622021-03-0139119920610.5114/biolsport.2021.10280743071Transfer of strength training to running mechanics, energetics, and efficiencyJorge L. StornioloGabriela FischerRenata BonaAlexandre PinhoAlex P. MoorheadMarcus TartarugaPaula FinattoLeonardo Peyré-TartarugaTo examine the effects of increased strength on mechanical work, the metabolic cost of transport (Cost), and mechanical efficiency (ME) during running. Fourteen physically active men (22.0 ± 2.0 years, 79.3 ± 11.1 kg) were randomized to a strength-training group (SG, n = 7), who participated in a maximal strength training protocol lasting 8 weeks, and a control group (CG, n = 7), which did not perform any training intervention. Metabolic and kinematic data were collected simultaneously while running at a constant speed (2.78 m·s-1). The ME was defined as the ratio between mechanical power (Pmec) and metabolic power (Pmet). The repeated measures two-way ANOVA did not show any significant interaction between groups, despite some large effect sizes (d): internal work (Wint, p = 0.265, d = -1.37), external work (Wext, p = 0.888, d = 0.21), total work (Wtot, p = 0.931, d = -0.17), Pmec (p = 0.917, d = -0.17), step length (SL, p = 0.941, d = 0.24), step frequency (SF, p = 0.814, d = -0.18), contact time (CT, p = 0.120, d = -0.79), aerial time (AT, p = 0.266, d = 1.12), Pmet (p = 0.088, d = 0.85), and ME (p = 0.329, d = 0.54). The exception was a significant decrease in Cost (p = 0.047, d = 0.84) in SG. The paired t-test and Wilcoxon test only detected intragroup differences (pre- vs. post-training) for SG, showing a higher CT (p = 0.041), and a lower Cost (p = 0.003) and Pmet (p = 0.004). The results indicate that improved neuromuscular factors related to strength training may be responsible for the higher metabolic economy of running after 8 weeks of intervention. However, this process was unable to alter running mechanics in order to indicate a significant improvement in ME.https://www.termedia.pl/Transfer-of-strength-training-to-running-mechanics-energetics-and-efficiency,78,43071,1,1.htmllocomotion intervention concurrent running economy kinematics |
| spellingShingle | Jorge L. Storniolo Gabriela Fischer Renata Bona Alexandre Pinho Alex P. Moorhead Marcus Tartaruga Paula Finatto Leonardo Peyré-Tartaruga Transfer of strength training to running mechanics, energetics, and efficiency Biology of Sport locomotion intervention concurrent running economy kinematics |
| title | Transfer of strength training to running mechanics, energetics, and efficiency |
| title_full | Transfer of strength training to running mechanics, energetics, and efficiency |
| title_fullStr | Transfer of strength training to running mechanics, energetics, and efficiency |
| title_full_unstemmed | Transfer of strength training to running mechanics, energetics, and efficiency |
| title_short | Transfer of strength training to running mechanics, energetics, and efficiency |
| title_sort | transfer of strength training to running mechanics energetics and efficiency |
| topic | locomotion intervention concurrent running economy kinematics |
| url | https://www.termedia.pl/Transfer-of-strength-training-to-running-mechanics-energetics-and-efficiency,78,43071,1,1.html |
| work_keys_str_mv | AT jorgelstorniolo transferofstrengthtrainingtorunningmechanicsenergeticsandefficiency AT gabrielafischer transferofstrengthtrainingtorunningmechanicsenergeticsandefficiency AT renatabona transferofstrengthtrainingtorunningmechanicsenergeticsandefficiency AT alexandrepinho transferofstrengthtrainingtorunningmechanicsenergeticsandefficiency AT alexpmoorhead transferofstrengthtrainingtorunningmechanicsenergeticsandefficiency AT marcustartaruga transferofstrengthtrainingtorunningmechanicsenergeticsandefficiency AT paulafinatto transferofstrengthtrainingtorunningmechanicsenergeticsandefficiency AT leonardopeyretartaruga transferofstrengthtrainingtorunningmechanicsenergeticsandefficiency |