Two groups of human subjects were submitted to a 20-week endurance training program (1 h a day, 4 days a week, 70-80% max VO2). 4 years). Training significantly increased max VO2 by 15% in G20 and 7% in G60. Muscle samples taken from the vastus lateralis muscle before and after training were histochemically stained for fibre-typing (myofibrillar ATPase), capillary supply and fibre area measurements (amylase PAS and NADH-TR). Fibre-type distribution was unchanged with training. 55 in G60. This enhancement of capillary supply was linked to the proliferation of capillaries in G20 where the number of capillaries in contact with ST and FTa fibres (CC) significantly increased from 4.6 to 5.9 and from 4.8 to 6.1 respectively. No significant changes in fibre areas were found in G20. On the contrary, G60 did not show any significant sign of capillary growth (CC unchanged) whereas fibre areas significantly decreased in ST (6,410 to 5,520 micron 2) and FTa fibres (5,830 to 5,090 micron 2). A methodological evaluation of fibre-area measurement was described, with confirmation of the data. It was concluded that this study may illustrate the trainability of skeletal muscle of elderly men in a possibly different way to that seen in a younger age group.

Can Skinny Legs Get Bigger? How to Get Bigger Thighs? Can You Gain Muscle from More Reps Without Weights? How Often Should I Train Legs to Get Them Bigger? How Long Will It Take for My Legs to Get Bigger? Along with a bigger, stronger chest, shirt-straining arms and perfectly carved six-pack abs, PrimeBoosts.com most guys want their leg muscles to really pop. Contrary to what you might think, building bigger legs without a gym full of equipment isn't impossible. Below, we showcase how you can pump up your legs with little or no weights, so no squirming under a deep barbell squat or tearing a deadlift from the floor necessary. In fact, all you need is a small amount of room and a shed load of tenacity. To help you learn how to get bigger legs (calves, quads, hamstrings and more all included), we tapped up personal trainer Alex Crockford to draw you a personal blueprint to getting stacked down below.

This workout is a home workout using no equipment other than usual things you'll find at home,' explains Crockford. But just because it's a weight-free workout, it doesn't mean it'll be a walk in the park. You need to feel it working, so if it’s too easy you can add weight with home dumbbells or anything heavy enough at home,' continues Crockford. Sounds like a win-win. How to do it: Standing tall and keeping your chest up at all times, mediawiki.laisvlaanderen.ehb.be take a long step forward with one leg, bending your front knee until the back knee touches the ground. Stand up explosively, pause and repeat with the other leg, moving forward. Reps: 12 Sets: 3 Rest: No rest, go straight into squat jumps. How to do it: Standing tall with your feet shoulder-width apart, keep your chest up and sink your hips back, before bending your knees to drop your thighs until they are at least parallel to the floor.

Push through the heels back to standing. Reps: 12 Sets: 3 Rest: increase testosterone 30 secs after each superset. How to do it: Stand straight with your arms across your chest and your feet shoulder-width apart. Lower yourself into a squat position until your thighs are parallel to the floor. Push up explosively from your feet keeping your arms folded as you jump up. Immediately jump again when you return to the squat position. How to do it: Stand facing away from bench with one leg resting on it, laces down. Squat down with your standing leg until the knee of your trailing leg almost touches the floor. Push up through your front foot to return to the start position. Reps: 12 each leg Sets: 3 Rest: No rest, go straight into single leg bridge. How to do it: Place a bench or a box in front of you and step onto it with one foot.