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Adjusted saddle position counteracts the modified muscle activation patterns during uphill cycling
Borut Fonda, Andrej Panjan, Goran Markovič, Nejc Šarabon, 2011, original scientific article

Abstract: The main aim of this project was to study muscle activity patterns during steep uphill cycling (UC) (i.e., with a gradient of 20%) with (1) normal saddle geometry and (2) with adjusted saddle position ASP (i.e., moving the saddle forward and changing the tilt of the saddle by 20%). Based on our preliminary case study, we hypothesized that: (1) during 20% UC muscle activity patterns would be different from those of level cycling (LC) and (2) during 20% UC with ASP muscle activity patterns would resemble those of LC. Twelve trained male cyclists were tested on an electromagnetically braked cycle ergometer under three conditions with the same work rate (80% of maximal power output) and cadence (90 rpm): level (LC), 20% UC and 20% UC with ASP. Electromyographic signals were acquired from m. tibialis anterior (TA), m. soleus (SO), m. gastrocnemius (GC), m. vastus lateralis (VL), m. vastus medialis (VM), m. rectus femoris (RF), m. biceps femoris (BF) and m. gluteus maximus (GM). Compared to LC, 20% UC significantly modified both the timing and the intensity of activity of the selected muscles, while muscles that cross the hip joint were the most affected (RF later onset, earlier offset, shorter range of activity and decrease in peak amplitude of 34%; BF longer range of activity; GM increase in peak amplitude of 44%). These changes in EMG patterns during 20% UC were successfully counteracted by the use of ASP and it was interesting to observe that the use of ASP during 20% UC was perceived positively by all cyclists regarding both comfort and performance. These results could have a practical relevance in terms of improving performance during UC, together with reducing discomfort
Found in: ključnih besedah
Summary of found: ...cycling, electromyography, bicycle geometry, muscular coordination, ...
Keywords: cycling, electromyography, bicycle geometry, muscular coordination
Published: 15.10.2013; Views: 2291; Downloads: 81
URL Full text (0,00 KB)

Change of muscle activation patterns in uphill cycling of varying slope
Nejc Šarabon, Borut Fonda, Goran Markovič, 2012, original scientific article

Found in: ključnih besedah
Summary of found: ...Electromyography, Intensity, timing, Inter-muscular coordination, ...
Keywords: Electromyography, Intensity, timing, Inter-muscular coordination
Published: 15.10.2013; Views: 1670; Downloads: 64
URL Full text (0,00 KB)

Advanced processing of electromyography signals in measurements of trunk postural actions
Nejc Šarabon, Andrej Panjan, 2015, published scientific conference contribution abstract

Found in: ključnih besedah
Summary of found: Zadetek v naslovu
Keywords: electromyography, signal processing, trunk functions, lower back pain
Published: 15.10.2015; Views: 1628; Downloads: 11
URL Full text (0,00 KB)

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