Serum hormone concentrations and physical performance during concurrent strength and endurance training in recreational male and female endurance runners

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dc.contributor.author Hokka, Laura
dc.date.accessioned 2011-05-24T08:16:51Z
dc.date.available 2011-05-24T08:16:51Z
dc.date.issued 2011
dc.identifier.uri http://urn.fi/URN:NBN:fi:jyu-2011052410906 en
dc.identifier.uri http://hdl.handle.net/123456789/27062
dc.description.abstract To investigate the effects of concurrent strength and endurance training on physical performance and serum hormone levels a total of 32 recreational endurance runners were trained for 18 weeks. Subjects were divided into four training groups separated by the strength training mode and gender. The groups were women’s and men’s combined maximal and explosive strength training group (WME; n=9 and MME; n=9), and women’s and men’s muscle endurance strength training group (WE; n= 8 & ME; n=8). The training was executed in three consecutive periods (I; 10 weeks, II; 4 weeks and III; 4 weeks). The endurance training in all groups was low-intensity (below lactate threshold) running throughout the whole experiment. The strength training was similar moderate-intensity resistance training for all groups during the training period I. During the training periods II and III, strength training differed between the groups (combined maximal and explosive vs. muscle endurance strength training). All groups performed two strength training sessions per week. Serum basal hormone levels, one repetition maximum (1RM), counter movement jump (CMJ), maximal oxygen consumption (VO2max) and maximal running velocity (Vmax) mere measured prior to the experiment and after each training period. Free testosterone increased in WE from Week 10 to Week 14 (20.1 ± 20.6 %, p < 0.05). No other changes in basal serum hormone levels were observed within or between the groups or genders. 1RM and CMJ improved significantly in all groups (p < 0.05-0.001) as well as Vmax (p < 0.05-0.001). No significant differences in the changes in 1RM, CMJ or VO2max were observed between the training groups. The increase in Vmax was significantly higher (p < 0.05) in the ME compared with the MME group (p < 0.05) during the differentiated strength training period. Additionally, ME had a significantly (p < 0.05) larger improvement in Vmax compared with WE (p < 0.05-0.001) during the experiment. In conclusion, hormonal responses to the present concurrent strength and endurance training seemed to be highly individual and mainly non-significant in the group level. No gender differences were observed in the hormonal responses. In addition, no gender differences were found in the changes in most of the selected physical performance variables except for the greater increase in the Vmax in ME compared to WE. Well designed concurrent strength and endurance training regimens resulted in improvements in strength and endurance in recreational endurance runners regardless of the strength training type used. However, improvements in strength and power were more systematic in the groups performing combined maximal and explosive strength training. The differences in the selected endurance performance variables were minimal except for the larger improvement in Vmax in the ME group compared with the MME group.
dc.format.extent 57 s.
dc.language.iso eng
dc.rights This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. en
dc.rights Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty. fi
dc.subject.other concurrent strength and endurance training
dc.subject.other hormonal responses
dc.subject.other physical performance
dc.subject.other gender differences
dc.title Serum hormone concentrations and physical performance during concurrent strength and endurance training in recreational male and female endurance runners
dc.type Book en
dc.identifier.urn URN:NBN:fi:jyu-2011052410906
dc.subject.ysa sukupuolierot
dc.subject.ysa hormonit
dc.subject.ysa kestävyysjuoksu
dc.subject.ysa kestävyysharjoittelu
dc.subject.ysa voimaharjoittelu
dc.subject.ysa juoksu
dc.subject.ysa juoksijat
dc.type.dcmitype Text en
dc.type.ontasot Pro gradu fi
dc.type.ontasot Master's thesis en
dc.contributor.tiedekunta Liikuntatieteellinen tiedekunta fi
dc.contributor.tiedekunta Faculty of Sport and Health Sciences en
dc.contributor.laitos Liikuntabiologian laitos fi
dc.contributor.laitos Department of Biology of Physcal Activity en
dc.contributor.yliopisto University of Jyväskylä en
dc.contributor.yliopisto Jyväskylän yliopisto fi
dc.contributor.oppiaine Science in Sport Coaching and Fitness Testing en
dc.contributor.oppiaine valmennus- ja testausoppi fi

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