The repeated bout effect of typical lower body strength training sessions on sub-maximal running performance and hormonal response

Abstract

The initial bout appeared to provide protection against a number of muscle damage indicators suggesting a greater need for recovery following the initial session of typical lower body resistance exercises in resistance-untrained men although sub-maximal running should be avoided following the first two sessions.

The Acute Effect of Exercise on Executive Function and Attention: Resistance Versus Aerobic Exercise

“…This may be attributed to the greater exercise intensity applied (80% of 1 RM), which resulted in a deterioration of the effect. Resistance exercises were previously shown to increase plasma cortisol (Doma et al, 2015) and noradrenalin levels (Kliszczewicz et al, 2016). The effects of the increased sympathetic system may explain the positive effects of this exercise mode, in our study as well as in others (e.g., Chang, Ku et al, 2012;Chang, Tsai, Huang, Wang, & Chu, 2014).…”

The Acute Effect of Concurrent Training on Running Performance Over 6 Days

“…Furthermore, the increase in RPE (i.e., RPE 3) at TTE during the 4th and 5th experimental days also suggests that muscle damage may have impaired running performance. Previous studies have shown no differences in RE 24 hr post-strength training, although RPE and RMS increased (Doma et al, 2015;Scott et al, 2003). The authors postulated that local muscle pain could be associated with stiffness, decreased range of motion, and the inability to produce optimal force, which increases perception of effort.…”

“…Based on a 2 K. DOMA AND G. DEAKIN nomogram for the estimation of measurement error via use of CV (statistical power of 90%; Atkinson & Nevill, 2006), percentage worthwhile differences of the current sample size (n ¼ 12) for C R , RPE, torque production, and TTE were found to be 3%, 4.5%, 10%, and 11%, respectively. These numbers are smaller than those in previous reports that have shown statistically significant differences in C R , RPE, torque production, and TTE (Doma & Deakin, 2013a;Doma & Deakin, 2014;Doma et al, 2015). In addition, an a-priori power calculation was conducted for the key dependent variables based on previous studies on male and female participants (Braun & Paulson, 2012;Doma & Deakin, 2013b;Marcora & Bosio, 2007) and showed that a sample size of 12 is sufficient to provide greater than 80% of power at an alpha level of .05.…”

“…Three familiarity sessions for the endurance-training protocol were conducted with at least 1 day of recovery in between during Week 2. During Weeks 3 and 4, three strength-training sessions were conducted with at least 4 days of recovery in between to limit repeated bout effects of strength training (Doma et al, 2015). During Week 5, a fifth endurance-training session was conducted with at least 4 days of recovery following the third strength-training session with performance measures (oxygen C R , RPE, and running TTE) collected for baseline (base end) purposes (see the "Endurance Training Sessions" section for further description).…”

“…The 1st 3 weeks consisted of a familiarization session with 6RM assessments, a VO 2 max test, and three strength-training sessions to limit repeated bout effects of strength training (Doma et al, 2015). The ST group did not undertake endurance-training sessions and therefore was not familiarized with the protocol.…”