Short or Long High Intensity Training

University of Agder

Status: Completed

Conditions: Well-trained Athletes; Sports Performance; Cycling

Treatments: Other: Training effects on aerobic output

Study type: Interventional

Funder types: Other

Identifiers

NCT04075929

Aerobic short og long interval

Details and patient eligibility

About

To compare the effects of short and long high intensity interval training (HIT) conducted with the same total accumulated duration on physiological- and performance parameters during a 4-week training period.

Full description

Studies among elite athletes have documented the importance of large amounts of training volume in order to perform at a high level in endurance sports. It is also well documented that both low intensity training (LIT), moderate intensity training (MIT) and high intensity training (HIT) should be included in the overall training efforts. It is well documented that HIT has a positive effect on the aerobic endurance among both elite athletes and recreational athletes.

Despite the fact that there is general agreement that HIT is an important part of the overall training, it is unclear how this part of the training should be organized in order to optimize the training effects. The adaptions of endurance performance seem to depend on both the intensity and the accumulated duration of the HIT sessions. Therefore, the aim of this study was to compare the effects of SI and LI training, including equal accumulated HIT duration, during a 4-week intervention period, conducted as 4x8-min with 2-min recovery periods, 4x(12x40/20-sec) with 2-min recovery periods and 4x(8x40/20-sec) with 2-min recovery periods, in different physiological- and performance parameters among well-trained cyclists.

Enrollment: 22 patients

Sex: Male

Ages: 18 to 40 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• male < 40 years,
• peak oxygen uptake (VO2peak) > 55 ml.kg-1.min-1,
• training volume >3 sessions per week (within cycling)
• absence of disease and injuries.

Exclusion criteria

• disease/injuries
• frequent absence of HIT sessions during the period.

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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22 participants in 3 patient groups

4x8 min

Other group

Description:

4x8-min intervals with 2-min recovery periods. The same accumulated duration of these three interval groups means that the total interval time is the same for each group: 4x8-min = 32 min

Treatment:

Other: Training effects on aerobic output

4x(8x40/20s)

Other group

Description:

4x(12x40/20-sec) intervals with 2-min recovery periods The same accumulated duration of these three interval groups means that the total interval time is the same for each group:4x(12x40/20-sec) = 32 min if the 20-sec recovery is not included in the total time of HIT

Treatment:

Other: Training effects on aerobic output

4x(12x40/20s)

Other group

Description:

4x(8x40/20-sec) intervals with 2-min recovery periods The same accumulated duration of these three interval groups means that the total interval time is the same for each group: 4x(8x40/20-sec) = 32 min if the 20-sec recovery is included in the total time of HIT

Treatment:

Other: Training effects on aerobic output