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Nick Krontiris Profile picture
@nick_krontiris
Jun 5 • 14 tweets • 5 min read Twitter logo Read on Twitter
The aim of this paper was to overview methods and results of studies that compared acute changes in muscle strength after bouts of maximal eccentric and concentric resistance exercise. Image
- "Perhaps the main implication of the current work is that ECC resistance exercise prescriptions should account for the muscle group being exercised...
"...The elbow flexors are more susceptible to acute strength loss and damage from ECC exercise than are muscles of the lower limbs...
"...Thus, volumes or intensities of ECC exercise should be lower for the elbow flexors than for the knee extensors, ankle dorsiflexors, and ankle plantarflexors, if less muscle damage and fatigue are desired...
"...This might be particularly important for novice exercisers and individuals who have medical conditions that might be exacerbated by muscle damage and fatigue."
- "A second implication is that cardiovascular stress during ECC exercise at a given absolute load will be less than during CON exercise...
"...Thus, as mentioned above, ECC resistance exercise might be well-suited for patients with cardiovascular or other medical conditions."
- "Third, at a given absolute load, individuals can complete more ECC than CON repetitions...
"...Thus, predictions of the number of repetitions that can be completed at particular percentages of the CON 1RM (i.e., the test often used to guide prescriptions), should not be expected to be the same for ECC resistance exercise."
- "Fourth, when prescribing target numbers of CON or ECC repetitions to be completed at the same relative loads, individuals, in some cases, will still be able to complete more ECC than CON repetitions."
- "Fifth, acute bouts of ECCmax, CONmax, and coupled ECCmax-CONmax resistance exercise cause significant acute reductions in muscle strength...
"...In the case of ECCmax resistance exercise, this strength loss is often not recovered in the hours or days following exercise due to muscle damage...
"...Thus, prescriptions of ECCmax resistance exercise should consider the individual's resistance exercise history, the muscle group exercised, and the potential impact of such strength loss on performance in upcoming sport practices and games."
Overview of muscle fatigue differences between maximal eccentric and concentric resistance exercise (open access)

doi.org/10.1111/sms.14…

#exercise #Workout #TrainHard #GymLife #GymTime #muscle #strength #lift #GetStrong #hypertrophy #gainz #gains

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More from @nick_krontiris

Nick Krontiris Profile picture
Jun 6
The findings of this one suggest that dietary carbohydrate and exercise may generate independent and interactive effects on the plasma metabolome, resulting in the generation of distinct metabolic phenotypes that may influence appetite regulation and perhaps energy intake. Image
- This study aimed to determine the interactive effects of carbohydrate and exercise on the plasma hormonal and metabolite responses and explore potential mediators of exercise-induced changes in appetite and energy intake across nutritional states.
- In a randomised-crossover fashion, 12 male participants completed four study visits that involved the consumption of a control (water) or carbohydrate beverage (75 g maltodextrin, 300 kcal), followed by a 30-minute rest or exercise session (75% V'O2max on a cycle ergometer).
Read 13 tweets
Nick Krontiris Profile picture
Jun 6
In this one, low upper and lower limb strength were associated with higher all-cause mortality risk in Chinese older adults with a mean age of 84.98 years.
- This study aimed to examine the association of upper limb strength and lower limb strength with all cause mortality based on the Chinese Longitudinal Healthy Longevity Survey.
- Participants were 2442 older adults (aged 84.98 ± 11.94 years) recruited from eight longevity areas in China.
Read 7 tweets
Nick Krontiris Profile picture
Jun 5
In this one, a multimodal exercise training intervention was found to be an effective strategy in improving muscular strength, agility, dynamic balance and depressive symptoms in men with mild-to-moderate Alzheimer's disease.
- The aim of this study was to investigate the effect of multimodal exercise training on aerobic endurance, muscular strength, agility, dynamic balance, cognitive status, and depressive symptoms in men with mild-to-moderate Alzheimer's disease.
- A total of 25 elderly men with a diagnosis of mild-to-moderate Alzheimer's disease were randomly categorized into a a multimodal exercise training program or a control group.
Read 6 tweets
Nick Krontiris Profile picture
Jun 5
The findings of this one in mice suggest that adolescent exposure to THC may promote an enduring “pseudo-lean” state that superficially resembles healthy leanness but might in fact be rooted in adipose organ dysfunction. Image
- A THC administration regimen that approximates daily human use of a low psychoactive dose of the drug dampened body weight gain in adolescent mice.
- When treatment was stopped, THC-treated mice expended more energy than did vehicle-treated controls and, by the time they reached adulthood, transitioned to a different metabolic state.
Read 10 tweets
Nick Krontiris Profile picture
Jun 4
In this one, even though the consumption of 42.5g mixed nuts per day for 16 weeks was associated with some favorable cardiometabolic risk factor changes, it was not associated with statistically significant changes on LDL-c or Lp(a) in individuals with overweight and obesity. Image
- The aim of this randomized controlled trial was to examine the effects of mixed nut supplementation on Lp(a), lipid profiles, and inflammation in individuals with overweight and obesity.
- Participants randomly assigned to the intervention group were provided with 42.5 g/day packets of mixed nuts consisting of 25.5 g of nut mixture (cashews, almonds, macadamia nuts, Brazil nuts, pecans), 5 g of pistachios, 5 g of walnuts, and 7 g of peanuts.
Read 7 tweets
Nick Krontiris Profile picture
Jun 4
The findings of this one suggest that physical activity, especially light physical activity, may buffer the negative association between stress and affective wellbeing. Image
- This study investigated the associations of both subjectively and objectively measured physical activity with stress experiences and affective wellbeing.
- A total of 90 university students participated in a 10-day experience sampling and diary study during their examination period and reported about stress experiences, physical activity, and affective states.
Read 10 tweets

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