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Int J Sports Med. 2017 Feb;38(2):105-110. doi: 10.1055/s-0042-111437. Epub 2016 Dec 8.

A 6-week Sprint Interval Training Program Changes Anaerobic Power, Quadriceps Moment, and Subcutaneous Tissue Thickness.

Author information

1
Athletic Training Laboratory, Graduate School of Physical Education, Kyung Hee University, Yongin, Korea (Republic of).
2
Department of Sports Medicine, Kyung Hee University, Yongin, Korea (Republic of).
3
Athletic Training Laboratory, Department of Sports Medicine, Kyung Hee University, Yongin, Korea (Republic of).

Abstract

We examined the effects of a 6-week 40-m one-way sprint interval training program (based on sprint time). 13 untrained healthy male collegiate students performed six 40-m sprints with a 60-s resting interval between sprints during the first week, and one sprint was added each week until the sixth week. If the 40-m sprint time exceeded 110% of the fastest baseline 40-m sprint time, the run was repeated. Repeated-sprint cycling test (every 3 weeks), quadriceps moment (every 2 weeks), and abdominal and thigh subcutaneous tissue thickness (every 2 weeks) were measured. Compared to baseline, mean power output improved at week 3 (16.27 vs. 17.73 Watt/kg, p=0.004). Regardless of side, quadriceps moment began to increase at week 4 (2.88 vs. 3.15 N·m/kg, p=0.03). Subcutaneous tissue thickness was reduced at week 2 (abdominal: 11.19 vs. 9.65 mm, p=0.01; thigh: 9.17 vs. 8.12 mm, p=0.009). Our results suggest that (1) sprint training with an intensity of 110% of the fastest baseline 40-m sprint time with the addition of one sprint per week produces similar effects to other training programs, and (2) untrained individuals need 4 weeks of training for strength development in the quadriceps and 2 weeks for reduction in fat tissue thickness.

PMID:
27931052
DOI:
10.1055/s-0042-111437
[Indexed for MEDLINE]

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