Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Maximal power |
Force-velocity profiling is carried out unilaterally (dominant leg) on the pneumatic leg press device (Leg Press CC, HUR, Kokkola, Finland). The test protocol consists of a maximal isometric test (knee joint angle = 85°, hip angle = 55°; 3 attempts of 3s), followed by explosive concentric leg extensions at gradually increasing loads (unloaded, 15%, 30%, 45%, 60%, 75% of the maximal isometric force, 2-3 attempts per load, and additional single repetitions until one-repetition maximum is reached). Mean velocity of the best trial per load is used to estimate the individual F-v relationship through a linear equation. This F-v relationship will be used to examine the exercise-induced adaptations. Maximal power is used for the analyses. |
Time Frame: Change from baseline in maximal power (watt) at 12 weeks |
|
Primary |
Maximal force |
Force-velocity profiling is carried out unilaterally (dominant leg) on the pneumatic leg press device (Leg Press CC, HUR, Kokkola, Finland). The test protocol consists of a maximal isometric test (knee joint angle = 85°, hip angle = 55°; 3 attempts of 3s), followed by explosive concentric leg extensions at gradually increasing loads (unloaded, 15%, 30%, 45%, 60%, 75% of the maximal isometric force, 2-3 attempts per load, and additional single repetitions until one-repetition maximum is reached). Mean velocity of the best trial per load is used to estimate the individual F-v relationship through a linear equation. This F-v relationship will be used to examine the exercise-induced adaptations. Maximal force is used for the analyses. |
Time Frame: Change from baseline in maximal force (N) at 12 weeks |
|
Primary |
Maximal velocity |
Force-velocity profiling is carried out unilaterally (dominant leg) on the pneumatic leg press device (Leg Press CC, HUR, Kokkola, Finland). The test protocol consists of a maximal isometric test (knee joint angle = 85°, hip angle = 55°; 3 attempts of 3s), followed by explosive concentric leg extensions at gradually increasing loads (unloaded, 15%, 30%, 45%, 60%, 75% of the maximal isometric force, 2-3 attempts per load, and additional single repetitions until one-repetition maximum is reached). Mean velocity of the best trial per load is used to estimate the individual F-v relationship through a linear equation. This F-v relationship will be used to examine the exercise-induced adaptations. Maximal velocity is used for the analyses. |
Time Frame: Change from baseline in maximal velocity (m/s) at 12 weeks |
|
Primary |
Slope of F-V profile |
Force-velocity profiling is carried out unilaterally (dominant leg) on the pneumatic leg press device (Leg Press CC, HUR, Kokkola, Finland). The test protocol consists of a maximal isometric test (knee joint angle = 85°, hip angle = 55°; 3 attempts of 3s), followed by explosive concentric leg extensions at gradually increasing loads (unloaded, 15%, 30%, 45%, 60%, 75% of the maximal isometric force, 2-3 attempts per load, and additional single repetitions until one-repetition maximum is reached). Mean velocity of the best trial per load is used to estimate the individual F-v relationship through a linear equation. This F-v relationship will be used to examine the exercise-induced adaptations. The equation's slope is used for the analyses. |
Time Frame: Change from baseline in the slope of F-V profile at 12 weeks |
|
Secondary |
Exercise adherence |
Number of sessions attended as a percentage of total sessions planned |
Total adherence over 10-week period |
|
Secondary |
Enjoyment |
Question: 'How much did you enjoy the training program?' Answer: 11-point Likert scale (0 = 'not at all...' to 10 = 'very...' |
within 1 week post-intervention |
|
Secondary |
Score on feasibility questionnaire |
Question: 'How feasible was the training program for you?' Answer: 11-point Likert scale (0 = 'not at all...' to 10 = 'very...' |
within 1 week post-intervention |
|
Secondary |
Future intention to participate |
Question: 'How high is the chance that you subscribe for a new sequence of training sessions?' Answer: 11-point Likert scale (0 = 'not at all...' to 10 = 'very...' |
within 1 week post-intervention |
|
Secondary |
External load: total distance |
Total distance covered per training session, measured by means of GPS metrics |
Average calculated over 10-week period |
|
Secondary |
External load: meters in speed zones |
Total meters in different speed zones per training session, measured by means of GPS metrics |
Average calculated over 10-week period |
|
Secondary |
Internal load: time in speed zones |
Total time in different speed zones per training session, measured by means of GPS metrics |
Average calculated over 10-week period |
|
Secondary |
External load: number of accelerations |
Number of accelerations (> 2m/s²), measured by means of GPS metrics |
Average calculated over 10-week period |
|
Secondary |
External load: number of decelerations |
Number of decelerations (< -2m/s²), measured by means of GPS metrics |
Average calculated over 10-week period |
|
Secondary |
Internal load: average heart rate |
Average heart rate (percent of heart rate max) during training session, measured by means of heart rate sensor |
Average calculated over 10-week period |
|
Secondary |
Internal load: time in heart rate zone |
Total time in different heart rate zones per training session, measured by means of heart rate sensor |
Average calculated over 10-week period |
|
Secondary |
Gait speed |
The average speed to walk 10m as fast as possible (in m/s) |
Change from baseline in gait speed at 10 weeks |
|
Secondary |
Countermovement jump height |
Jump height (cm) in a countermovement jump |
Change from baseline in countermovement jump height at 10 weeks |
|
Secondary |
Timed up and go |
Time (in s) needed to stand up from a chair, walk 3 m, turn, walk back and sit down again (as fast as possible) |
Change from baseline in timed up and go time at 10 weeks |
|
Secondary |
5-repetition sit-to-stand time |
The time (s) needed to perform 5 sit-to-stand transitions. |
Change from baseline in sit-to-stand performance at 10 weeks |
|
Secondary |
5-repetition sit-to-stand power |
The power (watt) needed to perform 5 sit-to-stand transitions. |
Change from baseline in sit-to-stand performance at 10 weeks |
|
Secondary |
Stair ascent time |
The time (s) needed to ascend a flight of stairs. |
Change from baseline in stair climbing performance at 10 weeks |
|
Secondary |
Stair ascent power |
The power (watt) needed to ascend a flight of stairs. |
Change from baseline in stair climbing performance at 10 weeks |
|
Secondary |
Body fat percentage |
Percentage of body fat, measured with bio-electrical impedance analysis |
Change from baseline in body fat percentage at 10 weeks |
|
Secondary |
Skeletal muscle mass |
Skeletal muscle mass, estimated with bio-electrical impedance analysis |
Change from baseline in skeletal muscle mass at 10 weeks |
|
Secondary |
Running speed at 2mM lactate |
Endurance exercise capacity test on treadmill: running speed at 2mM lactate value |
Change from baseline in running speed at 10 weeks |
|
Secondary |
Running speed at 4mM lactate |
Endurance exercise capacity test on treadmill: running speed at 4mM lactate value |
Change from baseline in running speed at 10 weeks |
|
Secondary |
Rate of perceived exertion (RPE) |
RPE of the common highest intensity block, completed in the pre- as well as post-intervention test (i.e., values at the same speed level in both tests) |
Change from baseline in RPE at 10 weeks |
|
Secondary |
Lactate value |
Lactate value of the common highest intensity block, completed in the pre- as well as post-intervention test (i.e., values at the same speed level in both tests) |
Change from baseline in lactate at 10 weeks |
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