CurraNZ – Summary of claims for imrpoved ENDURANCE SPORTS performances

I’ve posted on and off over the last few years about some of the benefits to endurance performance of supplementation of anthocyanin-rich products (that’s very concentrated blackcurrants to you and me – CurraNZ). I thought now was a good time to summarise the various finding and, for you non-believers, I’ll add some links as well.

Note: I get free product in exchange for these posts but no money. I use the product as I think it works. There is a discount and link at the end of this post if you want to give it a go.

 

CurraNZLonger-term Daily use and effective fat oxidation

  • An average of 10% increase in fat oxidation after week one
  • An average 16% increase in fat oxidation (fat burning) after week two
  • No effect on fat oxidation when taken intermittently (every second day)
  • Blackcurrant clearly favours fat as an energy source after longer intake

Based on a dosage of 600mg (2 tablets) of CurraNZ/day.

One Week usage and race effectiveness

  • 38% of participants were consistently high responders up to 37.8%
  • Six of the 16 subjects improved their total distance from 8.3% up to 37.8% across both blackcurrant trials
  • Nine participants improved their total distance a minimum of 7.9% in at least one trial
  • Blackcurrant responders improved their average total running distance by 262m-394m
  • Blackcurrant responders improved their average sprint distance by 116m-265m

Based on a dosage of 600mg (2 tablets) of CurraNZ/day for a week. More than one in three people might respond this way.

Click here to read the poster

Gastro-Intestinal Integrity & HEat Performance

  • Participants had less gastro-intestinal damage
  • Blackcurrant improved fat oxidation by on average 30% under conditions experienced in the heat

Based on a dosage of 600mg (2 tablets) of CurraNZ/day for a week.

Click here to read the poster presentation

Reduced effect on South East Asian Males

  • No effect on fat oxidation at rest or during exercise
  • A moderate-to-significant effect on cardiac responses during exercise
  • No effect on cardiac function at rest

Based on a dosage of 600mg (2 tablets) of CurraNZ/day for a week.

Click here to read more

Alters Physiological Responses and Femoral Artery Diameter during
Sustained Isometric Contraction

  • The vasodilatory actions of the berry triggered a 6.9%-8.2% increase in the diameter of the femoral artery, resulting in a 20%-35% increase in blood flow
  • There was a trend for lower systolic, diastolic and mean arterial blood pressure values in ranges of 7%-12% during muscle contraction. These values indicated the cardiovascular system experienced less stress
  • Muscle fibres in the quadricep demonstrated 11%-16% less activity, indicating the muscle worked to the same intensity with reduced effort
  • 12 out of 13 subjects saw higher cardiovascular responses during exercise, with increases to the cardiac output of 16% | Heart stroke volume improved by 11% | Total peripheral resistance reduced by 25%
  • Subjects had higher total haemoglobin, enhanced uptake and utilization of oxygen in the muscle, leading to reduced fatigue

Based on a dosage of 600mg (2 tablets) of CurraNZ/day for a week.

Improves Cycling Performance and Fat Oxidation in Cyclists

  • Participants had higher rates of whole-body fat oxidation of 15% and 27% at low and
    moderate exercise intensities
  • A trend for higher power across the time trial
  • Faster completion time by on average 2.4% with individual improvements of up to 8.6%
  • Significant performance effect from the short-duration intake of NZ blackcurrant extract

Based on a dosage of 300mg (1 tablet) of CurraNZ/day for a week.

Effect on Substrate Oxidation and Physiological Responses During Prolonged Cycling

 

  • A dose-effect was observed for average fat oxidation and carbohydrate oxidation
  • CurraNZ-supplemented subjects burned 116 more calories during the protocol
  • Blackcurrant-supplemented participants exhibited mean fat oxidation increases of 21.5% and 24.1% for 600mg and 900mg of extract.

Based on dosages of 300,600,900mg (1, 2,3 tablets) of CurraNZ/day for a week.

Enhances Fat Oxidation During Prolonged Cycling in Endurance-Trained Females

  • CurraNZ increased fat oxidation by an average of 27%, with ranges of up to 33% and 55%
  • Participants expended on average 11% less carbohydrate
  • Increased pre-exercise plasma NEFA and glycerol concentrations, suggesting an effect on lipolysis at rest

Based on a dosage of 600mg (2 tablets) of CurraNZ/day for a week.

Improves High-Intensity Intermittent Running

  • CurraNZ improved distance covered during sprints by an average 10.8%, or 411m
  • 1 in 3 subjects improved more than 15%
  • Despite the longer running duration, there was a trend towards higher lactate at exhaustion, suggesting greater tolerance
  • By 30 mins after exercise completion, lactate clearance was greater in 64% of
    participants

Based on the usage of CurraNZ/day for a week.

Performance during the Running-based Anaerobic Sprint Test for Footballers

 

  • Elite footballers experienced less slowing in the high-intensity, repeated sprint tests
  • Elite players had reduced slowing of sprint times, an effect not observed in the non-elite players
  • 12 of the 24 players (including five of the nine elites) demonstrated a lower fatigue index on blackcurrant by a combined absolute value of 12%,

Based on a dosage of 600mg (2 tablets) of CurraNZ/day for a week.

Effect on Maximal Sprint Speed during Intermittent Shuttle test

  • Short-term use of CurraNZ allowed athletes to better maintain the fastest sprinting times
  • Athletes who increased time to exhaustion in later phases did so by on average 15% (equating to 2 minutes and 20 seconds)
  • Athletes could run for longer at a higher intensity with reduced fatigue
  • Some subjects reported less perceived exertion on blackcurrant

Cardiovascular Function during Supine Rest in Endurance Trained Males

  • A moderate-to-large dose-response of cardiac values in differing ranges at 300mg, 600mg, 900mg
  • At a dose of 900mg, cardiac output increased by 27.5% without an increase in heart-rate
  • Total peripheral resistance reduced by 20.2% (900mg)
  • Increased stroke volume – the amount of blood pumped by each stroke of the heart – increased by 17.5% (900mg)

Based on dosages of 300,600,900mg (1, 2,3 tablets) of CurraNZ/day for a week.

Effect on Muscle Fibre-Specific Fatigue

  • Individuals with Type 1 fibres (slow twitch) had increased resistance to fatigue
  • Individuals with Type 2 fibres (fast-twitch) could produce 15% greater force during the initial stages of the 16-set contractions

Based on a dosage of 600mg (2 tablets) of CurraNZ/day for a week.

Beneficial Physiological Effects For Endurance Triathletes

  • A complete downward-right shift in the lactate curve
  • 6% increase in power at OBLA, allowing for greater exercise intensity
  • Lactate reduced by 14% at maximum oxygen uptake and by up to 27% at lower cycling intensities
  • Increased cardiac output by 26%, increased stroke volume by 25%
  • Decrease of total peripheral resistance by 16% The findings demonstrate increased blood flow may

Intra-individual responses during high-intensity, intermittent running

  • 38% of participants were consistently high responders up to 37.8%
  • Six of the 16 subjects improved their total distance from 8.3% up to 37.8% across both blackcurrant trials
  • Nine participants improved their total distance a minimum of 7.9% in at least one trial

Effect on Repeated Cycling Time Trial Performance

 

  • Total time of the two 4km cycling trials was 0.82% faster with NZBC extract
  • Seven of the ten participants had faster total times and higher mean power values
  • No effect of NZBC on heart rate or lactate values

Effects on whole-body fat oxidation during moderate-intensity exercise in males

  • An average of 10% increase in fat oxidation after week one
  • An average 16% increase in fat oxidation (fat burning) after week two
  • No effect on fat oxidation when taken intermittently (every second day)
  • Blackcurrant clearly favours fat as an energy source after longer intake
  • The potential to deliver a greater degree of fat burning in overweight, obese and unhealthy people

Enhances fat oxidation during submaximal exercise in the heat

  • Blackcurrant increased fat oxidation by on average 30% compared to the placebo group under the conditions

Effect on motivation to exercise

  • Heart rate, blood lactate and oxidative stress were similar in both groups.
  • The blackcurrant group walked further in both meantime and distance
  • The blackcurrant group recorded a significantly higher number of ‘positive’ mood scores
  • A decrease in MAO-B activity in the blackcurrant group
  • Reduced plasma prolactin levels in the blackcurrant group compared to placebo

Promotional Discount Code is 5KRUNNER on the curranz website, this should give you 15% off

 

CURRANZ Review Performance and Recovery Tablets, Blackcurrant-based

 

To see the full blackcurrant science roundup, including the latest abstracts, (pages 5-8) click here.

 

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