Primary outcome measures
The fatigue level of the participants was evaluated by fatigue rating scale (Micklewright, et al. 2017) and lactic acid level (Tanner, et al. 2010), pain by numerical pain scale (Farrar, et al. 2001), autonomic nervous system by HRV analysis with a wearable chest strap (Perrotta, et al. 2017), and performance by measuring distance covered on a bicycle ergometer.