Acute Resistance Exercise Performance Is Negatively Impacted by Prior Aerobic Endurance Exercise

Abstract

Ratamess, NA, Kang, J, Porfido, TM, Ismaili, CP, Selamie, SN, Williams, BD, Kuper, JD, Bush, JA, and Faigenbaum, AD. Acute resistance exercise performance is negatively impacted by prior aerobic endurance exercise. J Strength Cond Res 30(10): 2667-2681, 2016-The purpose of the present study was to examine acute resistance exercise (RE) performance after 4 different aerobic endurance (AE) protocols. Eleven healthy, resistance-trained men (21.0 ± 1.2 years) performed a control RE protocol and 4 RE protocols 10 minutes after different AE protocols in random sequence. The RE protocol consisted of 5 exercises (high pull, squat, bench press, deadlift, and push press) performed for 3 sets of 6-10 repetitions with 70-80% of one repetition-maximum (1RM) with 3-minute rest intervals in between sets. The AE protocols consisted of treadmill running at velocities corresponding to: (a) 60% of their V[Combining Dot Above]O2 reserve (V[Combining Dot Above]O2R) for 45 minutes (P1); (b) 75% of their V[Combining Dot Above]O2R for 20 minutes (P2); (c) 90-100% of V[Combining Dot Above]O2R in 3-minute intervals (1:1 ratio) for 5 sets (P3); and (d) 75% of V[Combining Dot Above]O2R (4.5 mph) uphill (6-9% grade) for 20 minutes (P4). Completed repetitions, average power and velocity, heart rate (HR), and ratings of perceived exertion (RPE) were assessed each set. Protocols P1-P4 resulted in 9.1-18.6% fewer total repetitions performed compared with the control RE protocol with the squat experiencing the greatest reduction. Average power and velocity were significantly reduced for the high pull, squat, and bench press after most AE protocols. Ratings of perceived exertion values for the high pull and squat were significantly higher in P1-P4 compared with control. Heart rate was significantly higher during RE after P1-P4 compared with control by 4.3-5.5%. These results indicate acute RE performance is significantly compromised in healthy men after AE exercise of different type, intensity, and duration with largest reductions observed after high-intensity interval exercise.

Effects of Acute High-Intensity Resistance Exercise on Cognitive Function and Oxygenation in Prefrontal Cortex

“…In addition, increased oxy-Hb concentration in the PFC activates nerves and improves cognitive function 12 , 24 . In contrast, the cognitive benefit of a single bout of resistance exercise was smaller than that of aerobic exercise 22 , and the cognitive benefit of high-intensity aerobic exercise was not different from that of control groups 23 . A lack of improvement or even reduction in cognitive function following high-intensity exercise has been shown in previous studies and is consistent with findings in the present study, in which the HIA group did not show a significant improvement in cognitive function.…”

“…Generally, high-intensity resistance exercise is performed to stimulate muscular strength and muscle development, high-intensity aerobic exercise aims to potentiate cardiovascular health, and moderate-intensity combination exercise aims to improve overall health and fitness. Sequences consisting of aerobic exercises after resistance training and aerobic exercise on its own are commonly recommended for optimal health 22 . These two types of exercise complement each other and are suitable for individuals of all ages.…”

“…Previous research suggests that the outcomes of high-intensity aerobic exercise can vary. For instance, a previous study reported that a single bout of aerobic exercise performed for 30 minutes at 60–70% VO2max improved cognitive function 22 . In contrast, another study examining the cognitive effects of a single bout of aerobic exercise on healthy subjects in their twenties reported that the error rate increased at 60–80% peak power, and that cognitive benefits of exercise were observed at low- to moderate-intensity 18 .…”

Postural control and balance in a cohort of healthy people living in Europe

“…[49–52] However, we also recorded altered balance in young age, probably due to a lack of muscle strength (dynapenia) that is present at this age. [53] Authors reported children's lack of key motor skills (strength, power, coordination) that are necessary components for the balance capacity [53–56] ; this provides us with a possible explanation of altered balance at early age. The underdeveloped visual-sensory system is another factor that additionally contributes to poorer balance in children.…”

Concurrent Training and Detraining: The Influence of Different Aerobic Intensities

“…All experimental groups performed the CT training program twice a week for 8 weeks. Strength performance seems to be negatively affected by previous aerobic exercitation (37); therefore, the literature recommends that intrasession exercise sequences should consist of resistance followed by aerobic training. Resistance training was the same across the experimental groups, consisting of full squat (FS) (70-85% of 1 repetition maximum: 1RM est ), jumps, and sprints and designed based on recent evidences (40).…”