Table 1.
Descriptive statistics for normalized EMG data (%MVIC) and subjective difficulties (Borg RPE score) during the Nordic exercise variations
| Variable | 10° of Nordic angle | 15° of Nordic angle | ||||
|---|---|---|---|---|---|---|
|
|
|
|||||
| Base slope angle 0° | Base slope angle 10° | Base slope angle15° | Base slope angle 0° | Base slope angle 5° | Base slope angle 10° | |
| ESa) | 47.12±14.36 | 43.08±12.43 | 42.54±14.08 | 56.00±22.56 | 54.22±22.31 | 50.28±16.66 |
|
| ||||||
| GMa,b) | 33.27±17.30 | 38.55±19.03 | 39.00±23.97 | 35.62±18.39 | 39.20±18.88 | 41.08±25.77 |
|
| ||||||
| BFa,b) | 70.33±23.62 | 61.82±20.62 | 52.32±14.22 | 81.32±23.57 | 68.72±13.23 | 61.93±18.70 |
|
| ||||||
| GCMa,b) | 63.96±26.03 | 64.43±22.37 | 54.10±20.15 | 81.78±29.70 | 70.48±23.77 | 63.48±21.64 |
|
| ||||||
| Borg RPE Scorea,b) | 10.33±2.13 | 12.19±1.69 | 12.90±2.59 | 12.19±1.78 | 13.52±2.60 | 15.05±2.56 |
Values are presented as mean±standard deviation.
EMG, electromyography; MVIC, maximal voluntary isometric contraction; Borg RPE score, Borg’s ratings for perceived exertion; ES, erector spine; GM, gluteus maximus; BF, biceps femoris; GCM, gastrocnemius.
a)
Significant difference in factor of the Nordic angle (P<0.05).
b)
Significant difference in factor of the base slope angle (P<0.05).