Key Moments

Q&A: Lifting Shoes, Alcohol, and Over/Underrated Exercises (Episode 11)

Stronger By ScienceStronger By Science
Education7 min read94 min video
Aug 1, 2019|11,717 views|318|33
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TL;DR

Podcast covers EMS, alcohol, exercise misconceptions, and training physiology. Advice for lifters.

Key Insights

1

EMS effectiveness for strength/hypertrophy in trained athletes is questionable due to potentially biased meta-analyses.

2

Moderate alcohol consumption (1-2 drinks) is unlikely to significantly impair body composition or muscle growth, but high intake negatively impacts muscle protein synthesis and hormones.

3

Lifter stage (intermediate vs. advanced) is less important than focusing on individual progress and optimizing training, rather than strict categorization.

4

Fruit consumption is generally fine for body composition, even during a deficit, as long as overall calorie intake is managed and fructose intake doesn't reach extremely high levels.

5

Weightlifting shoes with raised heels can benefit squat depth and torso angle, especially for those with ankle mobility issues, but individual preference also plays a role.

6

Calf training is not overrated; it's essential for developing a muscular physique and can also help with ankle mobility and recovery for some individuals.

7

Fiber type differentiation is a consequence of training direction (aerobic vs. resistance), with hybrid fibers specializing over time, not something to be intentionally trained for directly.

8

The protein refractory period concept is less critical for resistance-trained individuals, and focusing on 3-5 protein meals daily is sufficient without obsessive timing.

9

Chronic resistance training can decrease myostatin levels, but other consistent hormonal adaptations are not well-established; overtraining and low energy intake are key factors.

10

Reversing metabolic adaptation after fat loss involves a controlled caloric surplus, consistent resistance training, and maintained activity levels, prioritizing behavioral changes.

11

Bench press can be overrated for general fitness if not a powerlifter; dumbbell presses offer more joint-friendly options and freedom of movement.

12

Single-leg RDLs are excellent for identifying and addressing hip extensor strength imbalances, crucial for performance.

13

Straight-arm pulldowns and specific old-school pullover machines are underrated for lat development.

14

The ' Casey Butt calculator' for genetic potential should be taken with a large grain of salt; focus on individual progress rather than predicted ceilings.

ELECTRO-MUSCULAR STIMULATION (EMS) EFFECTIVENESS

Greg Nuckols discusses the use of EMS in training, noting a lack of personal experience but referencing systematic reviews. He expresses skepticism about reported significant strength and power gains (e.g., 60-80% isometric force increase in 3-6 weeks) in trained athletes, suggesting potential bias in the meta-analyses. Given EMS's common use in rehab and its availability in high-performance settings, Greg infers that if the reported benefits were consistently replicable, its adoption would be far more widespread than observed in practice. He suggests that real-world benefits are likely considerably smaller.

ALCOHOL CONSUMPTION AND BODY COMPOSITION

Eric acknowledges that alcohol contributes 7 calories per gram and should be accounted for, ideally not at the expense of protein or carbohydrates. While a caloric deficit can still be achieved with alcohol, high intakes negatively impact muscle composition by decreasing mTOR signaling and leucine sensitivity. Acutely, alcohol can also disrupt hormone levels, increasing cortisol and estrogen while decreasing growth hormone and testosterone. The key takeaway is that moderate consumption (under 0.5g/kg bodyweight, roughly 1-2 drinks) is unlikely to cause significant issues, especially compared to the excessive doses often used in research studies, which can lead to substantial reductions in muscle protein synthesis.

TRAINING STAGE AND GENETIC POTENTIAL

Greg advises against over-labeling oneself as 'intermediate' or 'advanced,' emphasizing that individual progress and rate of adaptation are more crucial. He points out that differences between lifters of varying training experience are often less significant than individual genetic predispositions and training quality. The Casey Butt calculator for genetic potential is mentioned as a rough estimate at best, and focusing on personal training logs and optimizing individual training strategies is recommended over fixating on theoretical ceilings or arbitrary classifications.

FRUIT CONSUMPTION DURING WEIGHT LOSS

Eric clarifies that fructose and glucose, while both sugars, are metabolized differently, with fructose primarily processed in the liver. While extremely high fructose intake can be detrimental to metabolic health (e.g., increasing triglycerides and liver fat), normal fruit consumption is unlikely to reach problematic levels. For active individuals, the liver's capacity to handle fructose is enhanced. He emphasizes that 'eating weird amounts of things' can lead to weird outcomes, suggesting that most people don't need to worry about fruit consumption affecting their diet, provided their intake is reasonable and their overall diet is balanced.

WEIGHTLIFTING SHOES AND EXERCISE CHOICE

Greg explains that raised-heel weightlifting shoes primarily benefit squats by allowing more forward knee travel and a more upright torso, particularly helpful for individuals with ankle mobility restrictions. However, he notes that even with adequate mobility, lifters might subjectively prefer the feel of raised heels. For leg presses, the benefit depends on the machine's platform angle; an already angled platform can negate the need for raised heels, potentially leading to an uncomfortable 'pressing in high heels' sensation.

AESTHETIC TRAITS AND EXERCISE SELECTION

Eric humorously addresses the question of preventing 'big traps,' arguing that large traps are aesthetically desirable for appearing muscular. He suggests focusing on building them, especially for those in physique sports. For individuals seeking to minimize trap development, he advises creative exercise selection to avoid direct trap loading, though he playfully implies this would be a 'wasted opportunity.' He also notes that exercises like the barbell bench press might be overrated for general fitness compared to dumbbell variations, which offer more joint-friendly options and a greater range of motion.

FIBER TYPE DIFFERENTIATION AND Training

Greg explains that while traditional understanding suggested limited fiber type conversion, newer research reveals hybrid fiber types that can differentiate based on training stimulus. Resistance training tends to shift hybrids towards Type IIa, while endurance training promotes conversion to Type I. Type IIx fibers are less common and generally decrease with training. This differentiation is seen as a natural consequence of training for specific adaptations, not an outcome to be intentionally pursued through specialized protocols beyond one's primary training goals.

PROTEIN REFRACTORY PERIOD AND TIMING

Eric discusses the concept of a protein refractory period, where muscle protein synthesis (MPS) response diminishes after a protein bolus. However, he highlights research by Yoeri van den Brand showing that resistance training significantly blunts this refractory effect due to heightened sensitivity and prolonged MPS. The recommendation is to consume 3-5 protein meals daily with adequate leucine, spaced logically but without obsessive focus on precise timing. Greg adds that longitudinal studies on time-restricted feeding suggest protein timing may be less critical than total daily intake for resistance-trained individuals.

CHRONIC EFFECTS OF RESISTANCE TRAINING ON HORMONES

Greg states that chronic resistance training consistently decreases myostatin levels, which is permissive for muscle hypertrophy. However, clear, consistent hormonal adaptations like sustained increases in testosterone are not well-established from existing longitudinal data. While acute training spikes hormones like catecholamines, baseline changes are less certain. He cautions that overtraining or training with insufficient energy intake can negatively impact hormones, but this is more attributable to the energy deficit than resistance training itself. Overall, apart from myostatin, confidence in predicting other chronic hormonal shifts is low.

REVERSING METABOLIC ADAPTATION POST-DIET

Eric outlines strategies for reversing metabolic adaptation after fat loss. Key factors during the diet include an appropriate rate of loss (0.5-1% bodyweight/week), consistent resistance training, and sensible deficits, potentially incorporating diet breaks. Post-diet, the focus is on a controlled caloric surplus to facilitate recovery and minimize fat regain. Maintaining activity levels (both exercise and non-exercise) is crucial. Weight-reduced individuals may preferentially gain fat, so a consistent surplus, high protein, effective training, and maintained activity are essential to offset this, requiring significant behavioral adjustments.

OVERRATED AND UNDERRATED EXERCISES

Greg controversially suggests the bench press is overrated for general fitness if not a powerlifter, favoring dumbbell presses for joint health and range of motion. He also questions the necessity of dedicated calf training, positing that daily activity might suffice for maintenance. Eric defends calf training, citing personal experience and its benefits for ankle mobility. Both agree that unilateral dumbbell overhead presses can be superior to barbell military presses for shoulder health. Underrated exercises highlighted include single-leg Romanian deadlifts (RDLs) for addressing strength asymmetries and straight-arm pulldowns for lat development.

SINGLE-LEG RDLs AND LAT DEVELOPMENT

Greg champions single-leg Romanian deadlifts (RDLs) as excellent for identifying and training hip extensor imbalances, particularly beneficial for athletes coming from bilateral-dominant sports like powerlifting. He emphasizes their diagnostic value for performance rather than injury prevention. For physique-focused training, straight-arm pulldowns are noted as an underrated exercise for lat development. The old-school Hammer Strength pullover machine is also praised for its unique ability to provide an intense lat pump that is difficult to replicate with other exercises, considered highly effective for building lat size.

Common Questions

While some systematic reviews have reported outrageously large effects from EMS on strength and power development, the hosts are skeptical. They suggest that real-world benefits are likely considerably smaller than reported, especially for general lifters outside of high-performance settings.

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